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MTS8000 US rev19.book - Troubleshooting Input Queue Drops and

1. User Manual 780000102 19 43 Chapter 4 Reflectometry measurements Traffic Detection and connection quality indicator 44 Connection Quality indicator If the Traffic Detection function is not selected on the System page then the message Signal Detected on fiber under test is displayed but the acquisition is although performed once any key is pressed no warning message asking you if the measurement must be performed or not is displayed An indicator of the state of the connection Good Bad is given at the beginning of an acquisition whatever is the acquisition mode selected The connection quality indicator gives the following information State Connection Good The connection is OK Bad Possible causes of a bad result There are several connectors close to the external connec tor of the MTS T BERD 8000 One of the connectors is dirty or badly connected Replace the launch cable make the connection again properly or clean the connector of the OTDR or of the jumper No fiber is connected If the state of the connection is bad it is still possible to carry out a measurement but the results will not be very reliable NOTE If the connection is bad check and clean the connector jumpers see Cleaning the universal connector on page 16 Battery saver When running on battery if no acquisition has been performed for two minutes the power supply of the module is c
2. About this guide xxi Purpose and scope esee xxii ASSUMPTIONS 2e eee Seb eee anes xxii Technical assistance ccc eee eee eee xxii Recycling Information eee eee eee xxiii CONVENTIONS ic oss a icska oe aaa a Guages xxiii Chapter 1 Principles of measurement 1 Principle of reflectometry measurements 2 Information yielded by the measurement 2 Validity of Measurement isses esses 3 Reflectance 0 0 cece cette ee 3 Principle of bi directional measurement 4 Principle of WDM system testing 5 Measurement results 0 00 00 cee eee 6 DFB analysis Eom ose bees ERROR UR E 6 PMD principle x nach mnn enn nane ce 7 Method used to measure the PMD 5 8 Principle of measurement of Chromatic Dispersion CD ODM using phase shift method 9 User Manual 780000102 19 vii Table of Contents Principle of optical power and attenuation measurements OF 4e teeth edt etic eet bake wee ee 10 Power measurement 0 00 e eee eee eee 10 Attenuation measurements optical link loss 10 Standards and l0 for different types of fiber 11 Chapter 2 Getting started 13 Unpacking the device Precautions 14 Installing a plug in in a receptacle and removing it 14 Inserting a plug in into receptacle 14 Remov
3. on the Results page in the table select the event press Advanced press Notes enter the text of the note in the edit menu that appears press Confirm and then Exit 64 User Manual 780000102 19 Chapter 4 Reflectometry measurements Advanced functions in Expert mode In the table of results the user can display indicators to evaluate the uncertainty of the result This function must be validated in the SETUP menu on the Notes line The notes are displayed under the selected event in the results table Uncertainty of results The following cases are possible Indicators concerning attenuation measurements Result of a manual measurement between the reference and the cursor using the 2c manual 2 cursors method 5c manual Result of a manual measurement using the 5 cursors method The attenuation displayed is a global result for Fresnel reflections which are not Global Di sufficiently separated As several events are too close together only the attenuation of the last one is Close evts displayed Indicators concerning measurements of slope Few pts Measurement of slope by the least square approximation method without using many points of acquisition 2 points Measurement of slope by the 2 point method mmm NOTE The SETUP menu Notes line enables display of notes of uncertain ties or of neither the one nor the other Notes cannot be displayed at the same
4. No resource for remote 8000 Unit OTDR resource is already being used Stop measurement on remote 8000 Unit to free the resource Noresponse from remote 8000 Unitt Data link problem Check the data con nection User Manual 780000102 19 Warning errors resulting from checking common configurations Chapter 6 Bi directional OTDR Troubleshooting No common laser acquisi tion is impossible Select a Base Unit equiped with the same type OTDR plug in Lasers are different Do you want to continue Yes measurement will occur using selected lasers common to both Base Units No measurement is stopped Acquisition configs are differ ent Transfer config to remote Yes the SETUP configuration is transferred and applied on the remote Base Unit No no configuration transfer the measurement is stopped File configs are different Transfer config to remote Yes the FILE configuration is transferred and applied to the remote Base Unit No no configuration transfer the measurement is stopped Acquisition and files configs are different Transfer config to remote Yes The SETUP and FILE config urations are transferred and applied on the remote Base Unit No no configuration transfer the measurement is stopped User Manual 780000102 19 93 Chapter 6 Bi directional OTDR Troubleshooting 94 User Manual 780000102 19 Optical Spectrum Measurement
5. sci Averaging acquisition Power Check Known Length Yn Setup Fiber Length 50 000 km En M Distance Unit bn ama ME Ah UNI uu Wavelength Range Manat Normalteed to bm Yes Fig 63 Configuration menu for AP test The Test Auto soft key sets all parameteres to auto or default values and let the unit to choose the apropriate setup as listed below Setup Menu Acquisition Averaging acquisition No Results Screen Wavelength range full Normalized to km No File menu File naming Auto Auto store Yes Fiber Nb Increment Yes In standard mode you can set the parameters below OESCL measurement performed over the full wavelength range OESCL bands SCL measurement performed over a wavelength range limited to S C and L bands User Manual 780000102 19 151 Chapter 9 Attenuation profile AP Activation and self calibration Averaging acquisition Power Check Last Reference BBS Type BBS Serial Number Measurements 152 NOTE In case of OBS5xx handheld sources the measurement will be per formed exclusively on SCL band It enables to improve the dynamic range of the measurement by reducing the noise level It is recommended to use the Auto mode and configure a manual averaging if needed only No No average of the acquisition sample to be performed Low Low averaging 4 samples Medium Medium averaging 16 samples High High averaging 32 samples This parametyer e
6. 79 Configuration of bi directional measurement 80 Acquisition parameters 0000 00 eee eaee 80 Measurement parameters 000200000 eee 81 Results Screen parameters 0000 0000 81 Configuration of files parameters 04 81 Performing a bi directional measurement 82 Process Display ieh cte ais tethers ee ak ces RE eE 82 Fiber link check slim 85 Measurement process 0000 0c eee eee 85 Trace display functions Lesssess 87 Origin and End traces iiilllulllllllllssn 88 OEO Wace os ER eR e daha ep ele ee E 89 OEO Result table 2 eee eee eee eee eee 89 Automatic measurement and Addition of markers in OEO page osos erasures cater Ria Cir E O iof T A FIT 90 Key Del Res Auto Meas gt 00200002 20 cee 90 Addition of markers 1 1 0 2 0 cee eee 90 Markers display lille 90 File management eee 90 Storing OEO measurements 0 000 eee eee 90 Recalling OEO traces 0 2 0 eee 91 Test ofacable cece eee eee eee 91 Troubleshooting lel 92 Warning errors after pressing the key START 92 Warning errors resulting from checking common configurations 93 User Manual 780000102 19 xi Table of Contents Chapter 7 Optical Spectrum Measurement 95 Laser safety crime ouo uA ne tee ket 97 Transportation leeeee
7. No reference trace s defined all the standard traces are removed and only the new trace acquired is displayed A trace stored in memory can be set as reference trace before loading one or several standard trace s To open one or several reference trace s 1 Goon the File Explorer 2 Select the trace s to be defined as reference 3 Click on Load and select Reference Yes on the key gx 4 Click on View Trace s or Load Trace Config The trace s open s and its their number s is are displayed in red Reference trace Active trace theicon nE appears on the upper right hand part of the results table To open standard traces to be added to the reference ones 1 Go back to the explorer 2 Select the trace s to be opened in the same screen as the refer ence traces 3 Click on Load and select Reference z No on the key Ex User Manual 780000102 19 Chapter 4 Reflectometry measurements File Management 4 Click on View Trace s or Load Trace Config The trace s open s and its their number s is are displayed in black Boland aco active unless it is the active one inthis case the number turns green E Reference trace and the trace is displayed in green Standard trace selected File Management Storing OTDR measurements Recalling OTDR files Once the measurements have been made results can be stored on different storage media If you had entered Auto store then the results
8. When a file is moved in the explorer of the Base Unit the end of process if the storage unit is removed prematurely USB memory stick disconnection Before disconnecting the USB memory stick always select a storage device different from usbflash select disk for example in the explorer Make sure you no longer have any running applications using the usbflash storage media The user must push the EJECT USB key which is available in File gt Explorer or Link Manager but also in Expert Tools Media Utilities The icon becomes to indicate it can be removed safely In this state the USB stick cannot be used anymore The USB memory stick can then be disconnected from the Base Unit s USB port The disconnection of the USB memory stick produces one beep mmEEES NOTE If the Base Unit operates on battery and is switched off before the USB memory stick is properly disconnected all the applications using the usbflash storage media will be automatically turned off and the USB memory stick can be disconnected afterwards without any prob lem mes NOTE If the 8000 6000 Base Unit is on mains and is switched off before the USB memory stick is properly disconnected the Base Unit needs to be completely switched off using the ON OFF button and main plug unplugged Standard Compact The Base Unit is equipped as standard with a slot in which a Compact Flash card 8000 Flash card can be inserted platform only The Compact F
9. keyboard and The menu keys to the right of the screen are replaced by the func tion keys F1 to F7 Base Unit The buttons below the screen are equivalent to Ctrl a letter see table below The direction keys have the same function on the external keyboard and on the Base Unit Function on the Base Unit External keyboard SYSTEM Ctrl Y SET UP Ctrl U PRINT Ctrl P FILE Ctrl F RESULTS Ctrl R START STOP Ctrl S SCRIPT Macro Ctrl M 4 v tod Menu keys 1 to 7 from top to bottom F1F7 22 User Manual 780000102 19 Chapter 3 Graphical User Interface Functions relating to display of a trace Function on the Base Unit External keyboard SAVE AND QUIT EXIT Entr e Enter QUIT WITHOUT SAVING ABORT Escape Echap 1 Editing text using the external keyboard The print key is not available on the MTS T BERD 6000 however the function is available on the Platform by pushing simultaneously left and right arrow keys To use the external keyboard to insert a name or identification in the set up menus or a Note in the table of results press Enter to go into the Edit menu type the text press Enter to leave the Edit menu Pressing the Esc key will close the Edit menu without saving the text Functions relating to display of a trace Display of the results on the trace The trace acquired or recalled from a memory is disp
10. 0 000 eee eee 164 Manual Mode Configuration 000000 165 Acquisition parameters 0 0 ee eee 166 Acquisition band with 81DISPAP modules 166 Power Check 00000 cece eee eens 166 Last Reference BBS Type BBS Serial Number 166 Measurements parameters usuus 166 Results Screen parameters 0 000 eee eee 167 Alarms a eR a ee Ge OE EEUU hated 167 Wavelength Range 000 0 cece eens 168 Normalized to km 0 0 cee eee 168 Show Measured Points 0000 cece eee 168 Show Fit Formula 0 00000 e eee eee 169 CD Reference measurement esses 169 Performing the reference 00 00 cee eee eee 169 Saving a reference measurement 171 Loading existing reference 0 172 Performing a CD Measurement 172 Performing a CD measurement through amplifiers 173 Display of CD results 0 22 e eee eee eee 174 Functions available 0 0 00 cee eee eee 175 File Management 000 eee cence eens 176 Storing CD measurements 20000055 176 User Manual 780000102 19 xiv Table of Contents Recalling reference or CD measurement files 176 Chapter 11 OFI Module 177 OFl module os vlt ilicis eui 178 Selection of the OFI module 178 LTS function vica siensia RR eR Rn 178 Principle of
11. 8100 Modules Series Portable modular platform designed for the construction validation and maintenance of optical fiber networks User Manual 8100 Modules Series Portable modular platform designed for the construction validation and maintenance of optical fiber networks User Manual Cy JDSU Notice Copyright Trademarks Manual WEEE Directive Compliance Every effort was made to ensure that the information in this document was accurate at the time of printing However information is subject to change without notice and JDSU reserves the right to provide an addendum to this document with information not available at the time that this document was created Copyright 2006 JDSU LLC All rights reserved JDSU Enabling Broadband and Optical Innovation and its logo are trademarks of JDSU LLC All other trademarks and registered trademarks are the property of their respective owners No part of this guide may be reproduced or transmitted electronically or otherwise without written permission of the publisher JDSU is a trademark of JDSU in the United States and other countries Microsoft Windows Windows CE Windows NT MS DOS Excel Word and Microsoft Internet Explorer are either trademarks or registered trade marks of Microsoft Corporation in the United States and or other coun tries Specifications terms and conditions are subject to change without notice All trademarks and registered trademar
12. The cursors A and B are represented by vertical lines of different colors ina solid line if the cursor is selected ina dotted line if the cursor is not selected When a trace is displayed the key Cursor A Cursor B can be used to select one or both cursors The direction keys 4 and gt move the selected cursor s along the trace Above the trace are shown the co ordinates of the points of intersection of the cursors A and B with the trace together with the distance between the two points When a selected cursor touches the right or left hand edge of the screen the trace starts to scroll horizontally to maintain display of this cursor If an unselected cursor has been moved off screen by a zoom it can be brought back on to the screen by selecting it and then pressing one of the direction keys or gt It will then appear on whichever edge of the screen is closest to its position When the cursor function is selected the keys 4 and W move the trace vertically Two types of cursors can be defined 1 Cursor on X only a vertical bar is present 2 Cursor on X and Y there is a vertical bar and a horizontal bar The intersection between these two bars is placed on the trace To display the type of cursor selected click on Advanced Then select the key CursorX CursorY to modify the current choice Each click on this key will alternatively insert or delete the check mark against Cursor Y User Manual 780000102
13. The selected file is opened For further informations on file management see Chapter 14 File management PMD standards and limits Some organizations and standards are stating that 10 of the bit rate for the PMD delay can be tolerated for a system without disturbing the network performance by more than 1 dB loss at 1550 nm with NRZ coding Bit Rate Per Channel SDH SONET Equivalent Time slot PMD Delay Limit 2 5 Gbit s STM 16 OC 48 401 ps 40 ps 10 Gbit s STM 64 OC 192 100 ps 10 ps 40 Gbit s STM 256 OC 768 25 12 ps 2 5 ps 10G Ethernet Ethernet 5 ps User Manual 780000102 19 147 Chapter 8 Polarization Mode Dispersion Measurement PMD standards and limits 148 User Manual 780000102 19 Attenuation profile This chapter describes the different steps in carrying out a Attenuation Profile AP measurement with a Base Unit equipped with a 81DISPAP or 81 MRDISPAPModule The topics discussed in this chapter are as follows Recommended equipment on page 150 AP Activation and self calibration on page 150 AP Reference Measurement on page 154 Performing a AP measurement on page 157 Display of AP results on page 158 File Management on page 160 It is assumed that you are familiar with the operation of the Base Unit and the Optical Broadband Source you are using User Manual 780000102 19 149 Chapter 9 Attenuation profile Recommended equipment
14. 2 Press the button RESULTS to display the auto calibration status A bargraph tuning in progress informs of the progression status of the calibration at the bottom of the screen Wait for the calibration to be fully completed before continuing 3 Press the button SETUP to access to the configuration menu for Chromatic Dispersion analysis Use the keys A and W to move the cursor to the different parameters and the keys 4 and gt to modify a value Configuring the CD test To configure a chromatic dispersion test press the SETUP button The different measurement parameters are displayed You can choose the default values by pressing the Test Auto key or define your own configuration mes NOTE The key Copy Setup For PMD AP allows to apply the CD configura tion to the other selected function s of the 81XXX module Test Auto In Test Auto configuration the setups below are provided Configuration Setup menu MEASUREMENT Known Length No 164 User Manual 780000102 19 Chapter 10 CD measurements using phase shift method Configuring the CD test Approximation formula Auto chooses the best formula depending on the acquisition band Sellmeier 5T if the 81XXX module is used with a BBS2A on the OESCL band Quadratic when the 81XXX modules are operating on the SCL bands Amplified Link No refer to Performing a CD measurement through amplifiers on page 173 RESULTS SCREEN Normalized to km Yes Show Measured points No
15. Display range 10 to 60 dBm 26 to 55 dBm Accuracy 0 2 dB 0 25 dB 5 dBm to 50 dBm 23 dBm to 50 dBm Detector type Ge Filtered InGaAs 2 mm Display resolution 0 01 dB Type of fiber 9 um to 50 um Warning Warning for 81WDM 81PMD 81WDMPMD UHD and VLR modules These are class A products In a domestic environment theses products may cause radio interference in which case the user may be required to take adequate measures User Manual 780000102 19 269 Chapter 16 Technical specifications Warning 270 User Manual 780000102 19 Options and accessories This chapter describes all the accessories and options available with the MTS T BERD series The topics discussed in this chapter are as follows References of measurement plug ins on page 272 User manual references on page 276 References of optical connectors and adapters on page 276 References of result processing software on page 278 User Manual 780000102 19 271 Chapter 17 Options and accessories References of measurement plug ins References of measurement plug ins OTDR Modules Multimode Module Modal Controller for Multimode fiber Multimode modules Reference Multimode High Resolution 850 1300 nm E8123MM Short Range LAN 25dB 850 nm E8111SRL Short Range LAN 23 dB 1300 nm E8112SRL E8123SRL Short Range LAN 25 23 dB 850 1300 nm References Encirc
16. Recalling OSA files 0 0 000 c eee eee 130 Chapter 8 Polarization Mode Dispersion Measurement 131 Recommended equipment 132 User Manual 780000102 19 xii Table of Contents PMD Activation and self calibration 132 Setup Menu ze es ee rtr RR 133 Test Auto Configuration 0 00 00 cc eee eee 133 Manual Mode Configuration 000000 133 Acquisition parameters 0000000 eee eaee 134 Measurement parameters 0 0 cee eee eee 136 Results Screen parameters 000 cee eee 137 Performing a PMD measurement with a PMD test module 137 Remote operator oe ec ee eee nenia pe pees 138 Local operator 0 200 cece eee eee 138 Performing a High Resolution PMD measurement 139 Selecting the HR PMD function 139 Performing the reference 0000005 140 Performing the measurement 055 142 Display of results llle 143 Spectrum FFT menu key 0000 e eee eee 143 Display of PMD results 000020 0 ee eee 143 Statistics results 0 0 e eee eee 145 Table of results essel RI 145 Graphics display 0000 cee eee eee 145 Information messages 2000e ee eee eens 146 File Management cece eee eres 147 Saving PMD results 00000 eee eaeeeee 147 Recalling PMD files llli 147
17. Two Base Units can be used at each end of the link under test for maximum efficiency and to carry out the largest number of tests in both directions mu NOTE The MTAU is not directional It is possible to use the common port either as an input or as an output Inputs for connection to the different plug ins Output fiber under test Fig 97 MTAU plug in with 1 common amp 4 ports 1 Equipped with suitable plug ins for example an OTDR CD plug in and a WDM PMD plug in User Manual 780000102 19 Chapter 12 Multi Test Access Unit Configuration Configuration To use the MTAU function go into the SYSTEM menu and select the icon Ea using the key e Then go into the SETUP or RESULTS menu the same page is displayed for this plug in to access the screen from which the the input channels can be switched The screen displays a diagram of the input and outputs to the switching device Switching button Common port Port B Port D Eui oss Lei T AP eco CD Fig 98 Manual mode for the MTAU plug in Manual mode To switch each output use the button Port A Port B Port C Port D Each click on this button switches the next output port The active port and the link to the common port are shown green while the other ports remain grey NOTE To optimize manipulation always use the RESULTS key to change over from this screen to the screen corresponding to each measure ment User Manual 7
18. context Their use is symbolized by an icon a shows that the action is immediate when the key is pressed Je shows that the key gives access to a sub menu BF shows that the key will quit the sub menu green direction keys shows that the function selected by the O20 key will be controlled by the direction keys zo green confirmation key shows that the function selected will gt be controlled by the confirmation key User Manual 780000102 19 Chapter 3 Graphical User Interface Using an external keyboard mouse and screen touch options Selection keys The selection may be exclusive only one choice possible or non exclu sive more than one option available at the same time This key offers two exclusive options The change of function occurs immediately the first time the key is pressed gU This key offers two non exclusive options Pressing the key mig repeatedly modifies the choice Color of the keys When a selection key is associated with direction keys or the confirma tion key if the function is not selected the key is dark blue pressing the key once selects the function The key turns lighter in color to show the user that the direction keys are assigned to it Pressing more times will modify the choice made using the key Using an external keyboard mouse and screen touch options The external keyboard facilitates input of Aalphanumerical configuration parameters comment
19. ments either at the end of the manual acquisition or when a stored trace is recalled mS NOTE This function memorizes the markers placed on the current trace The following procedure is recommended to start a measurement with markers 1 Carry out an automatic measurement 70 User Manual 780000102 19 Chapter 4 Reflectometry measurements Reference Trace function 2 Memorize the position of the events with the Add Marker key 3 Add the manual measurements required keys Advanced gt Manual Measurement CAUTION If a marker is added with the Add Marker key after manual measure ments have been performed then all the markers on the trace will be converted into AUTO markers and an automatic measurement will be performed using these markers The previous manual measurements will be lost Provided the event memorization icon is displayed the automatic measurement following the acquisition IS carried out using the markers which were present before the acquisition If you wish to make a measurement without markers deactivate memo rization of events by pressing the Free Evts key Reference Trace function Using the reference trace function in the Result page The reference trace function consists in defining trace s which will be blocked on screen and used as models before acquiring or loading other standard trace s Once one or several trace s is are displayed after an acquisition or loaded f
20. nition see Cable structure on page 224 The fiber number may be incremented or decremented directly with keys 4 and gt or using the numeric keypad mes NOTE The Fiber Code and the fiber number concatenated with Fiber Name are interdependent they are incremented or decremented at the same time However the fiber number remains a number only while the fiber code is alphanumerical Whether it includes a color code or not see Cable structure on page 224 it may be composed of one two or three parts see figure page 223 Fiber and cable parameters used in the example Fiber Name Fiberx Cable Content Tube Fiber Max Tube 12 Max Fiber 24 Coding used for the fiber and the tube TIA Fiber N Fiber N 1 Color Code Yes No Yes No Fiber Name Fiberx24 Fiberx24 Fiberx25 Fiberx25 Fiber Code gt BI Aq 1 24 Gold Bl 2 1 Fig 116 Example of incrementation of fiber code Link The information entered in the Link Description window concerns the description editing and or the modifications of the cable and fiber parameters When a trace is recalled without recall of the configuration the parameters of this trace will be present only in its signature User Manual 780000102 19 223 Chapter 14 File management File configuration menu Extremities are different Cable Id Direction Origin End Location Cable structure 224 In some cases it is interesting to save d
21. tralia and New 86 10 6833 7477 Zealand Beijing China All others 866 228 3762 tac jdsu com xxii User Manual 780000102 19 About this guide Recycling Information During off hours you can request assistance by doing one of the following leave a voice mail message at the Technical Assistance number in your region e mail North American Technical Assistance Center tac jdsu com or European Technical Assistance Center support uk jdsu com submit your question using our online Technical Assistance Request form at www jdsu com Recycling Information H JDSU recommends that customers dispose of their instruments and peripherals in an environnmentally sound manner Potential methods include reuse of parts or whole products and recycling of products components and or materials Waste Electrical and electronic Equipment WEEE Directive In the European Union this label indicates that this product should not be disposed of with household waste Il should be deposited at an appro priate facility to enable recovery and recycling Conventions This guide uses naming conventions and symbols as described in the following tables Table 2 Typographical conventions Description Example User interface actions appear in On the Status bar click Start this typeface Buttons or switches that you Press the ON switch press on a unit appear in this TYPEFACE Code and output messages All results okay ap
22. x x x xj xj x x 380 km xj xj x KI x x xj x KI x 1 Available only with LR Modules Ranges for VSRE modules 1km 10 ns 30 ns 100 ns 300 ns 1us 10 us 2 km 5 km 10 km 20 km 40 km x xj x x KY Xx 80 km xX x x XxX x XxX Xx xj xj xj x x x 160 km 260 km xX x x XxX Xx XxX Xx x xj x X X Xx x x x XxX Xx xj x x Xx User Manual 780000102 19 259 Chapter 16 Technical specifications OTDR Modules Ranges for UHR modules 3ns 30ns 100ns 300ns 1us 3us 10us 20uS 5 km x x 10 km x x x 20 km x x x x x 40 km x x x x x x x x 80 km x x x x x x x x 140 km x x x x x x x 260 km x x x x x 380 km x x Ranges for CWDM modules 3 ns 30 ns 100ns 300ns 1us 3 us 10 us 20 us 5km x x 10 km x x x 20 km x x x x x 40 km x x x x x x x x 80 km x x x x x x x x 140 km x x x x x x x 260 km x x x x x 380 km x x 260 User Manual 780000102 19 Chapter 16 Technical specifications WDM Modules WDM Modules Typical Typical specifications at 25 C unless otherwise indicated specifications 81WDM Module 81WDMPMD Module Minimum interval between channels S C L O E S C L Wavelength Range 1485 1640 nm 1260 1640 nm Duration
23. 19 Zoom and Shift functions Zoom function Shift function Chapter 3 Graphical User Interface Functions relating to display of a trace The Zoom function is used to analyze part of the trace in greater detail In association with Event OTDR or Channel WDM it enables rapid checking of a succession of events or channels The zoom is centred on the cursor selected If the two cursors A and B are selected the zoom is centred midway between the two cursors The position of the section of trace displayed with respect to the complete trace is represented by a red rectangle on the mini trace at the top left hand corner of the screen To define a zoom on the trace select cursor A or B and center it on the zone to be examined onthe Shift Zoom key select the Zoom function use the gt or key to increase or reduce the zoom factor Zooming on the different events in succession OTDR Zoom on one of the events detected as shown above Onthe Trace Event key select the Event function Use the 4 and p keys to move the zoom on to the successive events Zooming on the different channels in succession OSA Zoom on one of the channels as shown above Onthe Trace Channel key select the Channel function Use the 4 and p keys to move the zoom on to the successive channels The Shift function is used to displace the displayed section of the trace by pressing the direction keys The horizontal shift
24. 240 User Manual 780000102 19 Chapter 14 File management Link Manager Function Table 2 Fiber Information displayed OTDR CD OTDR CD ODM OSA PMD AP FOX Param amp OEO 7th Max Coeff at OSNR Min Coeff 2 O1310 Splice 1550 nm 8th Total 01550 ORL 9th OP162 5 Editing function The same editing functions as those from the Explorer are available with the Link Manager function Directory Copy or cut Paste Rename Delete see Directory edit function on page 233 and burn on CD see CD Rom burning MTS T BERD 8000 only on page 242 File s Copy Cut Rename Delete see File editing function on page 234 except the merging function as this is used with txt files Moreover the Edit menu from the Fiber Info function allows to export the whole directory with the files corresponding to the active tab in a txt file To export a directory a A OO N Select the Link Manager function Select the tab corresponding to the files you want to use Select the directory to open Select one file from the list Click on EDIT gt EXPORT The txt file is automatically generated in the same directory as the one selected for the export The name by default for the txt file is fiber info name of applica tion selected txt For exemple for the export of the Fiber Informa tion from the OTDR application the txt file will be called fiber_info_otdr txt This
25. 81MRDISPAP module and a 81BB1A module User Manual 780000102 19 Chapter 8 Polarization Mode Dispersion Measurement Display of results Display of results Spectrum FFT menu key _ Display of PMD results The key Spectrum FFT enables you to display The spectrum representing the power in dBm according to the frequency in THz or wavelength in nm The FFT curve and PMD information delay amp coefficient according to the Fast Fourier Transform Method The FFT trace represents the PMD delay in ps The PMD results screen is split in 3 main areas from top to bottom The information bar with module reference number of acquisitions used for the statistics Acq wavelength range 1525 1610 fiber number N fiber length in defined unit date and time of acquisition file name if result stored in memory Pass fail indication The FFT curve and its gaussian shape for strong mode coupling only the table of results PMD delay and coefficient second order PMD PMD2 delay and coefficient This table is different if statistic measurement is selected see Sweep Not available when used with the Polarisation scrambler Module in High Resolution PMD mode on page 134 The results are displayed in black when no alarm is defined in green if alarms are within the threshold defined in the Setup menu and in red if the alarms exceed the thresholds defined User M
26. Base Unit buttons the soft keys the touchscreen a mouse or an external keyboard NOTE The speed of your actions is not really relevant See Macro playback page 250 This macro type shall be used to perform a template for multiple files To create a new file macro 1 Selecta free position A sub menu automatically appears 2 Change the Macro type if necessary to set it on File Click on the soft key Learn You arrive directly to the FILE page You can read the message Load file to start learning at the top of the Screen Select the file you want to work with to perform all actions 5 Load and view the corresponding trace You can now see the icon Mg at the top of the screen indicating that you are ready now to record 6 Perform all actions you wish to record in your macro Click on SCRIPT when you are done and select End Macro You macro has now been saved 8 Enter the name of your new macro in the text editor and confirm Notes for standard macros also apply for file macros User Manual 780000102 19 247 Chapter 15 Macros Macro recording Adding interaction to your macro Inserting a dialog box Inserting a message Inserting a pause Renaming a macro 248 You may insert in your macro a special dialog box a message or a pause These features will be very useful to you They will give you some time to switch to another fiber if necessary let you play a macro to a partial state and stop or s
27. CD measurement Recalling Once a CD file is stored it can be recalled using the Explorer reference or CD 1 Select Explorer with the key Setup Explorer Fiber Info measurement 2 Using directions keys select the directory and then the file to open files 3 Press Load 4 Press View Tace s or Load Trace Config For further informations on file management see Chapter 14 File management 176 User Manual 780000102 19 OFI Module This chapter describes the functions of the OFI module Optical Fiber Installation and its use The topics discussed in this chapter are as follows OFI module on page 178 Selection of the OFI module on page 178 LTS function on page 178 FOX Function on page 186 Manual ORL page 196 File Management on page 198 User Manual 780000102 19 177 Chapter 11 OFI Module OFI module OFI module The OFI module is used to make insertion loss measurements ORL measurements and distance measurements The following functions are available with the OF Module Loss Test Set FOX Fiber Optic eXpert Selection of the OFI module Push the SYSTEM button Select the icon to start the LTS function and or the icon to start the FOX function or the icon E to start the ORL function using the key LTS function Principle of the optical power and attenua tion measure ments Power A power meter is all that is needed to measure emitted or received measurement p
28. Distance Launch Cable Receive Cable Fiber Under Test OTDR Launch Receive Cable end Cable start gt Distance ofthe Distance ofthe launch cable receive cable Fig 18 Launch Cable Receive Cable Defining the Launch Cable End parameter with an event number or a distance will automatically activate the corresponding parameter Include Link End connector This parameters can be set to Yes if the budget must include the connector loss of the launch cable at end Defining the Receive Cable Start parameter with an event number or a distance will automatically activate the corresponding parameter Include Link Start connector This parameters can be set to Yes if the budget must include the connector loss of the receive cable at start If those parameters are set to No the budget only displays the connector loss of the fiber under test Factory default value No User Manual 780000102 19 41 Chapter 4 Reflectometry measurements Configuring the reflectometry test 42 Result screen i Those parameters are valid for all the traces present on the screen Alarms gt Threshold None The alarm function is not active Fail This menu lists possible major alarm thresholds that the user could select If results are above those thresholds they will be highlighted in red in the table of results and the icon C3 will appear at the top right of the screen Thresholds are can be configured for Splice Connector
29. ODM modules Reference Combined long range CD PMD amp AP measurement 1260 1640 nm E81DISPAP Long Range Chromatic Dispersion Module 1260 1640 nm E81CD ODM MR Medium Range plug in E81MRDISPAP 1 To be used with an broadband source 2 To be used with the Broadband Source EOBS500 BBS Modules BBS modules Reference BroadBand Source module for standard PMD AP CD 1260 1640nm E81BBS2A SCL Band BroadBand Source plug in Module for standard PMD High Resolution PMD CD and AP measurements E81BB1A MTAU Modules MTAU modules 8100 series Multi Test Access Unit for 4 test modules E81MTAUA 1 Connector type must be specified User Manual 780000102 19 275 Chapter 17 Options and accessories User manual references OFI Modules OFI modules Reference 1310 1550nm OFI plug in module standard power E81260F11 1310 1550nm OFI plug in module high power E81260FI2 1310 1550 1625nm OFI plug in module standard power E81360F11 1310 1550 1625nm OFI plug in module high power E81360FI2 1310 1490 1550nm OFI plug in module standard power E81320Fl1 1310 1490 1550nm OFI plug in module high power E81320FI2 OFI Module option Reference ORL option for OFI plug in module with mandrel E810FIORL Launch Fiber Modules Launch fiber modules for OTDR demo and test Launch cable singlemode 1 fiber G652 2km E82LFSM2 Launch cable singlemode 1 fiber G652 4 km E82LFSM4 1 Two optical connec
30. PMD standards and limits 147 Chapter 9 Attenuation profile 149 Recommended equipment 150 AP Activation and self calibration 150 Setup MERU oe e tae SUL PE 150 Test Auto configuration 0 0 0 151 Acquisition parameters auauua eee eee 151 Acquisition band with 81DISPAP modules 151 Averaging acquisition 0000002 eee eeee 152 Power Check esr eem in te ees 152 Last Reference BBS Type BBS Serial Number 152 Measurements secl e lg dem rede 152 Res ults Sereen vests nes s rer ae bap ier ek erar 153 User Manual 780000102 19 xiii Table of Contents AP Reference Measurement s 154 Performing the reference 0000005 154 Saving a reference measurement 156 Loading existing reference 045 156 Performing a AP measurement 157 Display of AP results llle 158 Trace display ea Ier Ie TRE Ree I ERR 158 Results table ie esanves ed cet ce ce Skee READER 160 File Management eee 160 Saving Attenuation Profile measurements 160 Recalling AP files 0 0 cece eee 160 Chapter 10 CD measurements using phase shift method 163 CD activation and self calibration 164 Configuring the CD test Llslesssess 164 Test Auto Configuration
31. Recommended equipment To perform a AP measurement the following equipment is recom mended Base Unit with a module as referenced above and required optical connector OBS 5XX the BBS1A or BBS2A with required optical connectors Fiber inspection scope with associated optical connector tips Cleaning kit Two fiber patchcords with required optical connectors One mating adapter AP Activation and self calibration 1 Select the AP function in the Instrument SYSTEM menu To do this press the SYSTEM button then select the AP function and press the key e9 SARELA Fig 62 AP icon selected 2 Press the button RESULTS to display the auto calibration status A bargraph tuning in progress informs of the progression status of the calibration at the bottom of the screen Wait for the calibration to be fully completed before continuing Press the button SETUP to access to the configuration menu for Spectrum analysis Use the keys 4 and W to move the cursor to the different parameters and the keys and gt to modify a value Setup Menu Tre different test and display parameters are described below 150 User Manual 780000102 19 Test Auto configuration Acquisition parameters Acquisition band with 81DISPAP modules Chapter 9 Attenuation profile AP Activation and self calibration NOTE The key Copy Setup For PMD CD allows to apply the AP configura tion to the other selected function s of the module
32. Reflectance Slope Fiber Length Min and Max Total Loss Min and Max ORL Warning This menu lists possible minor alarm thresholds that the user could select If results are between those thresholds and the fail thresholds they will be highlighted in yellow in the table of results and the icon A will appear at the top right of the screen Thresholds can be set for Splice Connector Reflectance If all the results lie within the thresholds no result is in red or yellow results are displayed in green in the table and the icon will be vA Notes See Table notes on page 64 No no display of notes Notes display of notes entered by the user Uncertainty display of indicators of the level of confidence in the measurement result Factory default value No Results on trace No the trace alone All the trace with results and markers Graphics only the trace with markers only Factory default value All If All or Graphics only is selected the reflectometry trace is displayed with a dotted vertical line set on the end of launch cable o ifthe Launch Cable is defined in the SETUP menu and a dotted vertical line on the end of fiber Aoc Grid if Yes the grid is present on the result screen Factory default value No User Manual 780000102 19 Chapter 4 Reflectometry measurements Traffic Detection and connection quality indicator Unit Units of the distances displayed km kfeet miles
33. This chapter describes the different stages in carrying out a spectrum analysis of an optical signal or analyzing effects from an optical compo nents or network elements like EDFA DFB sources by a Base Unit equipped with a 507XXX series module and a 507Ext extension card or with a 81WDM 81WDMPMD module or with the OSA XXX series 8000 platforms The OSA 150 18x 3xx 5xx 500R are only available on MTS T BERD AN The OSA 110M is available on MTS T BERD 6000 and 8000 platforms ccg N o xz 2 lt z o zZS9S l o n Cle q Jss898 88 9865 2 8 2 B n gez cr ma oQ o 0 y n0j 24j u a og E ra os OSA 500R 35pm 50dBc X X X xX X X xX X Option OSA 500 35pm 50dBc xX X X X XX X Option OSA 181 70pm 45dBc X xX X X X X X X Option OSA 180 70pm 45dBc xX X X X X X X Option OSA 150 100pm 40dBc xX X xX OSA 110M 100pm 40dBc xX X xX mmm NOTE Looking for the OSA type and series Nr press SYSTEM Help Page User Manual 780000102 19 95 Chapter 7 Optical Spectrum Measurement 96 The topics discussed in this chapter are as follows Laser safety on page 97 Transportation on page 97 Configuration of the instrument on page 97 OSA optical spectrum analyzer Setup on page 98 Acquisition on page 110 Trace display functions on page 110 Table of results on page 114 Cha
34. _ Press the SYSTEM button T Use the direction keys to select the LTS icon framed in green and press the confirmation key e the icon in the frame will turn yellow The effect of this action will be to bring the power meter into use but not to activate the source Configuring the The measurement parameters can be accessed with the SETUP key measurement parameters of the power meter 180 User Manual 780000102 19 Chapter 11 OFI Module LTS function Auto 850 nm G80 nm 1300 nm 1310 nm 1420 nm User 901 nm 1450 nm 1480 nm 1490 nm 1510 nm 1550 nm 1625 nm Beep on modulation ves Unit dH Reference Level 0 1 dim Attenuator compensation 0 0 di Alarms Active Min Threshold 40 Site Max Threshold ilm Fig 83 Configuration of power measurement Wavelength Selecting wavelength Auto the wavelength of the input signal will be automatically detected and selected to perform the measurement 850 980 1300 1310 1420 1450 1480 1490 1510 1550 or 1625 nm measurement performed at specified wavelength User choice of wavelength on the next line in the menu User choice if the User option was selected in the Lambda line selection of the wavelength between 800 nm and 1650 nm in 1 nm steps by means of the direction keys 4 and gt Beep on modulation Select wether a sound must be emitted or not when a modulation occured Yes No Unit Unit of power displayed Watt dBm for dis
35. affect the active cursor value pushing the Set Cursor Distance button Default value No 221 Box The 221 box is used in order to link 2 fibers in one single fiber and get simultaneously the talkset and the OTDR laser Select Yes if a 221 box is used between the two Base Units Select No if this box is not used If Yes is selected on one equipment do not forget to configure the second one to Yes as well If Yes has been selected reboot both units the local and the remote one Default value No Alarms the alarms applie to the measurements average and not to the measurements for each side as it is in the classical OTDR mode To access the files configuration menu of the OEO OTDR tab press the button FILE Related parameters are then displayed All parameters to describe the files the fiber and the link are proposed in order to save all measurements Please refer to File configuration menu page 218 Only differences are presented in this chapter User Manual 780000102 19 81 Chapter 6 Bi directional OTDR Performing a bi directional measurement File Type This option allows to choose to save a bi directional measurement under two different formats see File management page 90 A OEO file The bi directional measurement is saved in a single file Two SOR files The bi directional measurement is saved in two different SOR files ees NOTE For best use it is recommended to use the auto fil
36. and reflectance In order to go from one table to another use the Advanced key followed by the Loss Slope Reflect key and select one of the three possibilities User Manual 780000102 19 89 Chapter 6 Bi directional OTDR Automatic measurement and Addition of markers in OEO page Automatic measurement and Addition of markers in OEO page Key lt Del Res when this key is activated in the EOE page and Del Res gt is selected Auto Meas gt OEO measurement is erased as well as OTDR measurement for both origin and end traces When Auto Meas is selected auto measurement is performed once more for both origin and end traces resulting in a new OEO measure ment Addition of in order to modify a marker on any of both origin and end traces select markers cursor A or B position your cursor when you want to modify or add a marker and press the key Set Event If there was no marker at this position a new one is added on both origin and end traces If there was two markers one on each of both origin and end traces both are deleted If there was only one marker either on the origin trace or on the end trace a second marker is added on the trace when none was present Markers display Markers b are available on the trace taken from the origin Markers d are available on the trace taken from the end mmmEEES NOTE Acquisitions must be done with the same resolution If not the addi tion of markers can not be perform
37. be carried out to take a reference for a ORL measure reference for an nent ORL measure 1 Power emitted reference ment 2 Zero ORL adjustment Follow the order given above to take the reference They are not two N different processes but two steps necessary to establish a reference a for an ORL measurement NOTE As ORL is an option establishing a reference for this measurement is not automatically available with the OF module ORL Emitted 1 Link the FOX port to the power meter input port via a jumper power 5 Click on ORL Power Emitted 3 Click on the Go key The power measurement from the laser signal emitted is completed o enel pompe thers and peers Oh ne en ox Fig 89 Establishing a reference for an ORL measurement User Manual 780000102 19 191 Chapter 11 OFI Module FOX Function Once the reference has been taken the reference screen is updated for the wavelengths available on the local instrument It indicates the type of reference used As the Zero mesurement as not yet been done the first line of the table displays the message Ref ORL Incomplete ORL Zero Once the Power Emitted measurement has been carried out the Zero adjustment adjustment can be performed 1 Disconnect the jumper from the external power meter and wrap this jumper still connected to the FOX port around the mandrel 6 to 7 times 2 Click on ORL Zero 3 Push the Go key Eamonn l Shs nn Fig 90
38. but will remain slow enough to let you see what is currently performed Acquisition times remain the same as during the recording 250 User Manual 780000102 19 Chapter 15 Macros Storing a macro mee NOTE Don t forget to add interactive events during your macro recording if you need a pause a specific message or simply to be able to abort the macro at a certain stage if necessary Touching a button on the Base Unit will automatically cause the macro playback to abort except for restarting the playback interrupted by a pause event gt NOTE For a File macro you may select several files before you call the Macro function Script specific option According the configuration of the MTS T BERD 8000 this one can be equipped with a Script function available on the same page as the macro page To use the script a MTAU module is mandatory see Use of the Fiber Characterization script on page 207 Storing a macro The Base Unit lets you save macros as files on the hard disk or other storage media To store a macro select it and click on the soft key Store It will automat ically store it in the current directory mee NOTE If you wish to store your macro at a specific place on your storage media make sure you use the file explorer to set that place as your current directory To reload this macro later on go to the file explorer and load the file The macro will automatically take the first avai
39. ce em e t Attenuation profil Curve M em Results table Fig 69 Example of a AP result Spectrum Profile For a reference measurement only the spectrum is available For a AP measurement two different graphs may be displayed You may switch from the Profile view to the final Spectrum view using the button Spectrum Profile It shows the final spectrum 158 User Manual 780000102 19 Chapter 9 Attenuation profile Display of AP results A 125 0800 41 6340 D 1423 0Gham 41 52 40 A8 0 000nm 0 00411 A n Pee Sat Eco os Cima Car Taco aur Fig 70 Example of a spectrum view after a measurement Profile it provides the difference between the final spectrum and the reference spectrum of the broadband source that s the resulting attenu ation profile see figure Example of a AP result on page 158 mus NOTE For a reference measurement only the spectrum is available mmm NOTE The Trace Table and Wavelength functions are available exclu sively with the Profile mode Zoom In order to zoom in on the trace press the Zoom Shift menu key to select Zoom then use the arrow keys to zoom horizontally or vertically The zooming area is defined by the selected cursor s mmm NOTE To reset the zoom and see the full trace press Full scale Trace shift To shift the trace horizontally or vertically press the Zoom Shift me
40. created and used Once you click on the button SCRIPT you see the list of all the 10 macro positions Each number from 1 to 10 displays the name of the macro stored at that position or displays Empty in case that particular spot is free KO Macros Default Macro Macro 2 1 Macro 33 Macro 22 Macro 43 Macro 1 Empty Empty Empty Empty Empty Empty o0 0 UU 0 N Fig 128 List of Macros Macro recording The Base Unit offers two different types of macro Standard and File For both types it is required to Select and activate all necessary modules before starting the macro recording i Never press the SYSTEM key during macro recording Standard macro This macro type shall be used to automate functions or operation mode To create a new standard macro 246 User Manual 780000102 19 File macro Chapter 15 Macros Macro recording 1 Select a free position A sub menu automatically appears 2 Change the Macro type if necessary to set it on Standard 3 Click on the soft key Learn You arrive directly to the Results page You can now see the icon mg at the top of the screen You are now ready to record 4 Perform all actions you wish to record in your macro Click on SCRIPT when you are done and select End Macro You macro has now been saved 6 Enter the name of your new macro in the text editor and confirm NOTE All events are recorded wether you use the
41. dBm 6 5 dBm 6 5 dBm 1kHz 2 kHz 1 Guaranteed with laser at 10 us 2 oor oor 256 Guaranteed value corresponding to the one way difference in dB between the backscattered level extrapo lated at the origin of the fiber and the level containing 98 of noise after 3 minutes of averaging with the larg est pulsewidth according to IEC 61749 standard Value corresponding to the difference in dB between the backscattered level extrapolated at the origin of the fiber and the RMS noise level after 3 minutes of averaging with the largest pulsewidth 8t 20 us pulse width with Non Zero Dispersion Shifted Fibers in single wavelength configuration In single wavelength configuration EDZ measured at 1 5 dB below the peak of a non saturated reflecting event at shortest pulsewidth at 1310 nm ADZ measured at 0 5 dB on the basis of a linear regression from a reflectance of type FC UPC 55 dB at shortest pulsewidth User Manual 780000102 19 Chapter 16 Technical specifications OTDR Modules Singlemode UHR modules 8118UHR Spacing of measurement points from 4 cm with up to 512 000 acquisition points Central Wavelength 1650 5 nm RMS Dynamic Range 43 dB Distance Range Up to 380km Pulse width 3ns to 20 us Event Dead Zone 0 3 m Attenuation Dead Zone 1 5m Laser safety Class Class 1 1 Guaranteed with laser at 10 us 2 Value corresponding to the difference in dB bet
42. example Please check that the OTDR function has been selected see Selecting the function page 32 For best measurements and in order to qualify the fiber link and con nectors launch cables shall be inserted between the OTDR modules and the link Test if both units are linked to the same fiber Consistency verification of the OTDR plug in between the two units Consistency verification of acquisition configuration measurement and files fiber and link definition Then transfer of the master unit configuration to the slave unit if necessary Acquisition start on the master unit Trace transfer to the slave unit Acquisition start on the slave unit Trace transfer to the master unit Bi directional measurement on both units Results storage in a single OEO file or in two SOR files All this test procedure is fully automatic and all results are immediately accessible on both units User Manual 780000102 19 79 Chapter 6 Bi directional OTDR Configuration of bi directional measurement Configuration of bi directional measurement To access the OEO configuration menu press the button SETUP from the Base Unit OEO parameters are now displayed i Please check that the OEO OTDR tab has been selected Acquisition parameters are the same as for OTDR measurements see Configuring the reflectometry test page 32 for their description Only different or extra parameters are presented in th
43. it To select a list of files using the keys of the Platform 1 Select and validate the first file of the list red display 2 Set the cursor on the last file of the list blue display User Manual 780000102 19 235 Chapter 14 File management Explorer Function 3 Press the right direction key gt to select all the files from the list T1111 see PUPDPPPE 31 tae z208 es Fig 124 List of files selected If no file has been selected by the eo key the file where the cursor is positioned is taken as selected On the other hand if a file has been selected with the key and the cursor is on another file the latter is not selected Commands When a file is selected the keys offer the following functions relating to files lt Load gt Opens the sub menu for display of traces See chapter Loading files and displaying traces on page 238 lt Select all gt Direct selection of all the files in the directory After this key has been pressed its name changes to lt Deselect All gt so that the operation can be cancelled if necessary lt Edit gt Displays a sub menu to copy cut paste delete rename or merge one or more files Using the Merge key with the txt files When saving a measurement result in addition to the trace file a txt file can be saved for each measurement type with OTDR traces select txt in the line File Type on Menu screen see 4100 Module Series User Manuals with
44. make sure all setup values are correct for each selected function 3 Select the Function Cursor key and choose which function you wish to configure in the list of icons 4 Select the Port Cursor key and choose which port is connected to the corresponding function 5 Click on the key to validate the association A solid link will be drawn between the function and the port you selected see the figu 6 Go mm NOTE mmm NOTE It is not possible to affect the same function to different ports Functions that are offered by the same physical module may only be connected to the same port re Auto mode for the MTAU plug in on page 204 back to step 3 for the next function if necessary When the sequence is completely configured you can view which func tion is connected to which port thanks to all the solid links see the figure Auto mode for the MTAU plug in on page 204 Various link colors are offered to differentiate each port light blue for port A red for port B pink for port C dark blue for port D IMPORTANT N If a function used in the sequence configuration is deselected in the SYSTEM page the configuration automatically deletes the corre sponding link but keeps the rest of the configuration in memory Rese lecting the function does not automatically recreate the link User Manual 780000102 19 205 Chapter 12 Multi Test Access Unit Auto mode mmEEES NOTE The last configura
45. measurement acquisition Yes the received power is indicated at the beginning of measurement NOTE If Yes is selected the acquisition stops if not enough power is received These parameters provide the relevant information related to the Broad band source BBS referencing These parameters cannot be modified as they are automatically gener ated after a reference measurement see CD Reference measurement on page 169 Known Length No If you do not know the fiber length select No Yes If you know the fiber length select Yes Fiber Length If Yes is selected in the preceeding parameter enter here the fiber length Min 1 km Max 20000 km Dispersion coefficients normalized values will be calculated accord ingly User Manual 780000102 19 N Results Screen parameters Alarms Chapter 10 CD measurements using phase shift method Configuring the CD test Distance Unit When the fiber length is set manually choose the distance unit km kfeet miles Approx formula Select the approximation formula to be used for generation of the delay dispersion and slope curves Please refer to ITU T G 650 1 or IEC 60793 1 42 for further information Quadratic A BA CA Sellmeier 3 term A BA2 CA Sellmeier 5 term A B4 CX 4DA EX Lambda Log A BAa Ca In A See Most suitable method of approximation according to trace zone on page 11 You can also let the product to configure automatically the approx
46. measurement point chosen is the calculated mid point between two adjacent channels The noise power level measured is converted to a standard bandwidth of 0 1 nm The most important item of equipment for carrying out these tests on WDM systems is the optical spectrum analyzer OSA It can be connected at critical measurement points in the WDM system to the ends of the links or to the amplifier locations The optical analyzer displays a spectrum representing all the channels The measurement results are shown in the form of a complete spectrum analysis and a table of the parameters relating to each carrier The optical spectrum analyzer performs automatic detection and measurements on each channel The results of a scanned spectrum trace are the amount of automatec detected channels depend on a adjustable power threshold the total optical power dBm or Watt at the selected sweep range the wavelength the wavelength spacing between channels the power level the noise at 0 1nm noise acquisition bandwidth the SNR signal to noise ratio the P Pcomp The sweep modes Statistics and Drift measure and report time depended changes at wavelength power and SNR of the signal in a min max table To qualify signal and components special measurement types supports these characterisation system data signals EDFAs DFB Lasers LED sources FP Lasers Measurement types WDM DFB EDFA LED FPL filte
47. mode It enables to perform the reference of the 81BBS1A broadband source module before a measurement see Performing the reference on page 140 Last zero Only when used with the Polarization scrambler module in High Resolution PMD mode This parameter displays the date and time of the last reference Number of sweeps not available when used with the Polarization scrambler module in High Resolution PMD mode Number of acquisitions from 2 to 1000 User Manual 780000102 19 135 Chapter 8 Polarization Mode Dispersion Measurement PMD Activation and self calibration Measurement 136 parameters Long term Only when used with the Polarization scrambler module in High Resolution PMD mode Enables to repeat the measurement defined by the number of sweeps over a given period and to obtain staistical results None samples are displayed one after the other Manual requires the user to press the Stop Wait button to start the next sample Period Defines time between 2 samples To be configured with wait period parameter Wait Period The Wait Period parameter allows to enter a time between 2 acquisition samples only active if Long Term is positioned on Period Increments of 5 seconds to 24 hours Known Length No If you do not know the fiber length Yes If you know the fiber length Fiber length Press Edit Number to enter fiber distance Min 0 100 km Max 20000 km The fiber length must be set to calc
48. mode the user will be able to work on these traces in order to analyze the fiber by moving events consulting the selected trace associated result table asking for an auto measurement adding markers and doing manual measurements See Table of results page 58 Modifying Link Length page 65 Addition of markers page 62 and Manual measurements page 66 have been done on either the Origin curve or on the End curve are When the user comes back to OEO trace all modifications that can N now taken in account The OEO measurement is performed again OEO trace Only one couple of OE and EO traces is displayed corresponding to one wavelength If the measurement has been performed on different wavelengths select Wavelength on the key Wavelength Evt in order to go from one couple of traces to another using arrows Functions such as Zoom Shift Cursors Evt Curve Table Full scale are all the same as for OTDR but the table result as well as the use of markers are specific to OEO measurements OEO Result table Bi directional measurement results use principles described in Principle of bi directional measurement page 4 The total loss of the fiber on the line specifying the total number of events is resulting from the average between the total loss calculated in the direction O gt E and the total loss calculated in the other direction Three tables are available in the OEO curve page each showing atten uation slope
49. module Typical values are shown in OSA type overview table for example OSA 180 typ 70pm see page 95 0 1 0 2 0 3 0 4 or 0 5 nm for 507XXX series and 81XXX series plug ins 0 1 0 2 0 3 0 4 0 5 1 2 or 5 nm for modules OSA XXX Number of sweeps In Statistics mode this must be selected between 2 and 1000 Long Term NOTE A long term measurement can be done only if the Sweep parameter is on Statistic mode Long term time diagram number of sweeps 7 wait period 5s User Manual 780000102 19 Chapter 7 Optical Spectrum Measurement OSA optical spectrum analyzer Setup time distance between the next acquisition wait period time No Manual Period Wait Period the measurement is done manually once the key Stop Wait is pressed the measurement is automatically done after the wait period selected see hereunder The Wait Period parameter allows to enter a wait period before the measurement start only active if Long Term is positioned on Period Increments of 5 seconds up to 1 minute then increments of 1 minute up to 10 minutes then increments of 5 minutes up to 60 minutes then increment of 1 hour up to 24 hours Measurement parameters Those parameters are only linked to the current active fiber Type not available for OSA 110M fix WDM OSNR WDM I OSNR only valid for OSA 320 and OSA 500R Module is used for measuring the true in band OSNR by using the pol
50. of sweep in real time 1 5s 3s Accuracy 1 10 pm Resolution of display 1 pm 10 GHz 80 pm Optical Bandwidth FWHM 30pm Power Range of display 90 dBm at 30 dBm Resolution of display 0 01 dB Channel measurement range 79 dBm at 10 dBm Noise floor 86 dBm Max permissible power before signal cut off total 20 dBm per channel 10 dBm Accuracy in power 5 0 5 dB max Linearity 0 2 dB Flanes 02dB Dependence on polarization 0 05 dB 0 15 dB ORL Optical Return Loss 35 dB ORR Optical Rejection Ratio 35 dB at 50 GHz from the carrier 40 dB at 100 GHz from the carrier In the range of 1525 1570 nm 1590 nm from 0 to 40 dBm cx mO Ordo DO Dimensions From 40 dBm to 5 dBm in the range of 1525 1620 nm 1550 nm with averaging 75 dBm without averaging 1550 nm with averaging 81 dBm without averaging At 30 dBm and 1550 nm excluding the uncertainty relating to the input connector In the range of 1525 nm 1620 nm reference 1550 nm On the basis of the peak of a single carrier on the band 1530 1605 nm at 0 dBm amp with max resolution Weight approx 500 g 1 1 Ibs and weight Dimensions in mm Width 120 Height 27 Length 211 User Manual 780000102 19 261 Chapter 16 Technical specifications PMD Modules PMD Modules Typical values at 25 C unless specified otherwise Modules E81PMD
51. on the same Base Unit if transfer of data is in progress the icon ifa printing process is in progress the icon L ifa data saving is in progress the icon W m ifthe Web Browser application is active the icon ifa USB key is connedcted onto the Platform the icon rx The File menu and the Results page can include a scaled down repre sentation of the trace which may show the location of the zoom zone corresponding to the main display The part of the trace shown in the main display is boxed on the mini trace This mini trace will only appear if the trace originated from an Base Unit Other Bellcore files read on this instrument do not contain the information needed to display it A status bar repeats the parameters of the measurement and in some cases the position of the cursors acomment the name of the file when the result is recalled from a memory The central zone of the screen can display the configuration of the instru ment or the measurement the memory explorer of the Base Unit the measurement results etc Refer to the chapter dealing with the measure ment in progress When the instrument performs several different functions OTDR WDM Power Meter etc the various configuration or results pages are acces sible from tabs To change from one tab to another the button selecting the page must be pressed To example onthe Results page to change from one tab to the oth
52. push the direction key gt The edition keypad is displayed Enter the text you want and push the Valid key on the keypad or on the Screen Push the Send Message or Select key On the distant Base Unit the message is displayed with the icon Press any key to delete the message NOTE If the link is not established between the two Base Unit the following error message is displayed No acknowledge received for the SMS sent Manual ORL 196 The OFI module can be equipped with the ORL function option which allows to make an ORL manual measurement However before making this measurement the references have to be established once the ORL tab has been selected on the OFI module or on the Base Unit in the SYSTEM page Fig 95 Selection of the ORL function User Manual 780000102 19 Chapter 11 OFI Module Manual ORL The functions LTS FOX and ORL can be selected at the same time N on the OFI module However the LTS and ORL functions from the Base Unit cannot be selected simultaneously Establishing a Two steps must be carried out to take a reference for an ORL manual reference for an measurement ORL manual 1 Power emitted reference see ORL Emitted power page 191 measurement 2 Zero ORL adjustment see ORL Zero adjustment page 192 Follow the order given above to take the reference They are not two different processes but two steps necessary to establish a reference for an ORL manual measure
53. relative results By default the table gives the results in absolute values To obtain these results in relative values with respect to a reference channel Press the Table Contents key then Relative gt lt Absolute to select Relative Move the cursor on to the channel that is to serve as the reference Press the Define Ref Channel key The results are recalculated with respect to this channel of reference Channel filtering Field of This option is only available for OSA XX1 and OSA XX3 modules application It is used to filter out one particular channel and extract it via a port called the drop port mE NOTE For Dual Port OSA 201 and OSA 303 only the input port B can extract a channel to the drop port Configuration To obtain filtering of a given canal to the drop port go into theSETUP menu of the OSA module Choose Acquisition then Sweeps and select Filtering The options of the acquisition menu then change and offer Choice of channel In the Choice of Channel option either a value may be entered manually or the current value from the table can be taken Manual A new line appears above choice of channel in which the required value can be entered User Manual 780000102 19 117 Chapter 7 Optical Spectrum Measurement Drift measurement Table The value of the current selection in the results table is used automatically To vary this selection go the the result screen and use Table c
54. sete ction Cab commemo Feria Commiaiemime oma r ee meure ibdrvsternai mesae a Sme c 2 torom eeu Pus merit ne Orge Lecaton r e ww tet Lotatien oo Tran z gt Me vert eme be Messen 1 erem ew ie a tad Rer j 4 Would yo contimes T Fier Lem oom nom ails ag T un 13 4 eim mids m f ner Fae Oraa VLE SW ISI Fig 105 Move to next fiber 12 Once all measurements are performed results are summarized in the overview table and the distant unit can start testing Click on Ok 13 Once all the measurements are performed the result table is displayed Ment stiection Coben commit vocet Farting comm tiene oma Wider mesure Ribrecsonmd memes a LM o orom d Fas mer sn s Onga Location meme m End Lotion Se Sete E MES plog in module fae s E Comment OOED M Fert iom PILON VM Dienes Dviey AT 1980 Omp t9 Siepe 1008 siet a m pace fmn a 1 pama vy nn ec a v k lw soe X i iz Fig 106 The results summary is filled in with the last 5 fiber measurements and the user can scroll up and down to view the other fibers tested The data are automatically saved in one directory 210 User Manual 780000102 19 Chapter 12 Multi Test Access Unit Use of the Fiber Characterization script LAMTS 8000 E 7 Files E harddisk L FIBEROt 1550E Ebert L riBERO1 1620E E3cable
55. the LTS functions the txt file is automatically generated when saving the results The key Merge is used to merge several txt files from measurements into one txt file putting together the results of all txt files Inthe explorer select the txt files generated with the tracefilesyou want Click on Edit gt Merge key The file merged files txt is automatically saved in the same directory as the one where the txt files have been selected 236 User Manual 780000102 19 Chapter 14 File management Explorer Function mee NOTE The file merged_files txt can be renamed once it is saved lt Sort gt Opens a sub menu with which the files in the directory can be sorted by name size type or date Send by mail This option appears if Mail has been defined with a media in the system setup menu The subject and the recipient of the mail are those set in the file setup menu see File export on page 227 Comments may be added This option allows to send files by e mail After a few seconds a message is displayed to inform the user that the mail has been sent successfully Saving Files when the explorer is displayed the active trace for the selected tab is from the displayed in the File Signature Explorer You can then save the active trace 1 Select a directory by clicking once on it 2 Click on Store to save the active trace or click on Next Trace to change the file signature on the top part of the screen and to
56. the bi directional or average splice loss value S S1 S2 2 Bi directionnal measurement consists in performing a measurement from the extremity of fiber A then another measurement from the extremity of fiber B finally get events of both traces and calculate the average for all slope splice and reflectance measurements Principle of WDM system testing WDM Wavelength Division Multiplex technology is a very effective means of increasing the transmission of fibers as it demands neither the installation of new links nor any increase in transmission speed The data are transmitted along the fiber at different wavelengths each wave length or channel transmitting a signal The channels are defined according to the the G 692 recommendations of the ITU T This technology demands new measurements since it is important during the installation and maintenance of WDM systems to check the following parameters 1 Presence ofthe channels at the corresponding wavelengths with no drift Correct channel power levels without power variation 3 Satisfactory signal to noise ratio SNR its value is obtained by measuring the ratio of channel peak power to the noise power level of the ASE signal to the right and or left of the carrier As a general 1 Amplified Spontaneous Emission User Manual 780000102 19 5 Chapter 1 Principles of measurement Principle of WDM system testing Measurement results DFB analysis rule the noise
57. the screen If the cursor is in this part the func tions proposed by the keys are specific to the management of the directories User Manual 780000102 19 233 Chapter 14 File management Explorer Function Selection of f the cursor is in the left hand part of the screen directories the direction keys can be used to select a directory the key opens the directory selected and closes it when pressed a second time in video inverse to show that it is the current working directory If it Do not confuse Selected with Active A directory may be displayed N does not have a broken red line round it it is not active Active working directory Selected the cursor is here Broken red line around aro MRIEERGNNEUNEEEENS B SEEE 213K Md 158020811182 D Scope 8 Ger 21 3 KD Ota 2t3KB Oid 000306 172430 Fig 123 Selected Active File Edition of When a directory is selected the keys offer the following functions directories Create Directory Creation of a new directory An editor enables entry of its name Rename Dir Renames the directory selected An editor enables replacement of its current name Edit Opens a new menu providing functions for editing the directories Copy Cut Paste Delete and Merge mmEEES NOTE A whole directory with its contents can be copied into another direc tory or on to another storage medium File editing The right hand part of the screen can be used to wor
58. the time between the measurements Similar to Wait Period of Long Term application see Wait Period on page 103 118 User Manual 780000102 19 Chapter 7 Optical Spectrum Measurement Drift measurement NOTE Interval specifies the time between start of one measurement and start of the next measurement and includes the instrument measure ment time All channels defined by the channel Grid can be monitored simultane ously with the drift application To show the monitored measurement parameter use the Trace Channel Drift button in the result screen This button has a toggle function with the following selections Trace in Trace mode the up down cursor change the active trace in a multiple trace display Channel in Channel mode the up down cursor changes the channel to be displayed over time Drift activates the drift display showing the selected parameter over time Activating the Drift display will show the following screen Fig 45 Example of drift measurement wavelength over time In the Drift display the measurement result is shown in a graphical format trace over time scans and a tabular format The table shows the following parameters Channel number number of the displayed channel Wavelength or Frequency of the displayed channel Ref reference value of wavelength power or SNR AVG average value of wavelength power or SNR User Manual 780000102 19 119 Chapter 7 Optical Spectr
59. therefore necessary to fix a power threshold level only peaks that exceed this threshold will be considered as channels and included in the table of results To display or modify this threshold press the SETUP key then select Signal threshold Modify the value to position it on Auto or fix a threshold value Display of a grid The display window of the trace can include a grid to facilitate verification of the position of the channels Several grids are possible see the chapter Parameters of display and analysis of the results p 106 Display of total power between cursors To display on the trace the total power between the two cursors A and B 1 Place the cursors at the desired positions 2 Press the Advanced key then Total Power A lt gt B 1 The Auto value is obtained by continuing to reduce the value of the threshold below the minimum value of 79 9 dBm 112 User Manual 780000102 19 Chapter 7 Optical Spectrum Measurement Trace display functions The space between the trace and the two cursors is greyed out and the power is displayed in the form P 4 95dBm Pressing the key Total Power A lt gt B a second time removes the result of the total power measurement Display of gain Tilt delta and gain slope results The Base Unit can display two additional results The gain tilt that is to say the difference between the max and min values of the peaks of the complete signal spectrum between the cursors
60. to be tested between the source output and the power meter input In the set up menu select dB units The power displayed in the Power Meter window corresponds to the optical loss of the link tested It can be displayed in the table see Table of results page 184 FOX Function Configuration of the FOX automatic mea surement The FOX function is used to make automatical bidirectional optical power measurements and or ORL measurements at one or several wavelengths This function is also used to make a distance measurement of the link under test Two Base Unit are required each one equipped with an OFI module at each end of the fiber The OFI module 81xx is also compatible with the OFI 2000 With the FOX function the two Base Units can communicate and send messages to each other Two types of parameters can be modified in the FOX configuration of the OFI The Acquisition parameters The results screen parameters 186 1 Fiber Optic eXpert User Manual 780000102 19 Chapter 11 OFI Module FOX Function r Measurement Loss en Rn o ona m o i User a a san Fei Furukawe Coming SMF OS Cemng SMI 45 Corming Leal saw Fig 86 FOX parameters Acquisition Laser All 1550 1310 1625 1550 1310 1550 parameters 1625 1310 1625 Measurements Loss Loss ORL Loss Length Loss ORL Length mus NOTE The acquisition and measurement parameters can chang
61. will be saved automati cally If not or if you want to store the results under another name directory etc Click on the FILE key Select Setup with the key Setup Explorer Link Mgr Modify the parameters you want A OND Click on Store Trace The OTDR traces are stored with the extension SOR or MSOR according to the File Type selected see File Type Save Mode on page 221 If in the line File Type One msor file is selected and if several OTDR traces are displayed in overlay then one single file will be saved with the msor extension with all the traces for example in the case of a double acquisition a short acquisition and the standard one Once a OTDR file has been stored recall it using the Explorer Select Explorer with the key Setup Explorer Link Mgr Using directions keys select the directory and then the file to open Click on Load Click on View Tace s or Load Trace Config A OND oA The selected file is opened For further informations on file management see Chapter 14 File management on page 217 User Manual 780000102 19 73 Chapter 4 Reflectometry measurements File Management 74 User Manual 780000102 19 Source option of the OTDR Modules According to your module the source option is available in two different ways either by pressing the Laser Source key onto the OTDR Setup page and selecting the source mode see page 34 Or by selecting the ic
62. 0 0 0 0 c eee eee eee 192 Measurement acquisition llle 192 Choosing the fiber to be tested 0005 193 Making the measurement 000 20005 193 Identifying the distant module 4 194 Displaying results for a FOX automatic measurement 194 User Manual 780000102 19 Xv Table of Contents Sending a message 00002 cece eee eee 195 Manual ORL eese 196 Establishing a reference for an ORL manual measurement 197 Measurement acquisition 20020055 197 Making the measurement 20 0 0055 197 Display of results for an ORL manual measurement 198 File Management eee e eee eee 198 Storing results 2 iniugek X Rhe RE RR Rr erm 198 Recalling files Luc Re RR ve RI 199 Chapter 12 Multi Test Access Unit 201 Function of the MTAU module 202 Connections 2 0 ore rl reme x 202 Configuration leleeele IR 203 Manual mode eee 203 Auto mode 0 0 cece eee eee eee eee eens 204 Configuration of the sequence of tests 205 Performing the sequence of tests 206 Use of the Fiber Characterization script 207 Connect the modules to the MTAU 207 Launching the Script 0 0 2c eee ee eee 208 Chapier 13 Broadband source BBS 213 Function of the BBS module 214
63. 02 19 Chapter 16 Technical specifications High Resolution Dispersion test solution High Resolution Dispersion test solution Typical values at 25 C unless otherwise specified Optical Interfaces Applicable Fiber SMF 9 125 um Interchangeable optical connectors FC SC DIN LC Weight Dimensions w x h x d Weight 600 g 1 32Ibs Dimensions w x h x d 213 x 124 x 32 mm 8 36 x 4 88 x 1 26 in Polarization Mode Dispersion Dynamic Range 48 dB PMD measurement range 3 0 to 18 ps PMD absolute uncertainty 0 02 ps 296 Measurement time 9 From 30 s 1 With Broadband Source module E81BBS1A in Corresponding mode 2 With Kit 1 PMD only Subtract 6 dB for Kit 2 PMD CD AP 3 With strong mode coupling 4 Strong mode coupling 1500 1600nm measurement span PMD 10ps 5 Up to 35 dB attenuation 6 Without averaging Attenuation profile with kit 2 Dynamic Range 12 45 dB Wavelength Uncertainty 0 1 nm Measurement Time 6 seconds Measurement uncertainty e at 1550 nm 0 003 dB km at 1625 nm 0 004 dB km 1 With Broadband Source module E81BBS1A in Corresponding mode 2 With averaging 3 Without averaging 4 Measured with 80 km G 652 fiber User Manual 780000102 19 265 Chapter 16 Technical specifications BBS Modules Chromatic Dispersion with kit 2 Wavelength Ac
64. 1 1 rigERO 1 OE Gifess1 wjjriBERO1 Fuloe E9463 Iu Feer t Fuld E3fg464 P 4 full FIBERO 1 FulOE fiberi 1x7 FiBER 1 OE iver Fig 107 Directory automatically generated All raw OTDR CD PMD and AP traces are saved 5 per fiber 1310 OTDR 1550 OTDR PMD CD and AP files The test set automatically creates a txt file which saves Loss ORL OTDR CD PMD and AP results in pre formatted columns This file can be opened on a PC with a spreadsheet program e g Excel DLL 1 a X Job Information fleece Onley Tad Ll OTDR Results A CD Results pe at van PMD Results 2 AP Results KEEN Y T afl Fig 108 Example of txt file opened via Excel User Manual 780000102 19 211 Chapter 12 Multi Test Access Unit Use of the Fiber Characterization script 212 User Manual 780000102 19 Broadband source BBS This chapter describes the function of the BBS Broadband Source module and its use The topics discussed in this chapter are as follows Function of the BBS module on page 214 Activation process on page 214 Remote interlock connector on page 215 User Manual 780000102 19 213 Chapter 13 Broadband source BBS Function of the BBS module Function of the BBS module The broadband source BBS module covers two different wavelengths from 1260 to 1640 nm with the 81BBS2A from 1460 to 1640 nm with the 81BBS1A They are used to measure the attenuation profil
65. 102 19 3 Chapter 1 Principles of measurement Principle of bi directional measurement typical values of the backscatter coefficient for a pulse of 1 ns and for a single mode fiber 79 dB to 1310 nm 81 dB to 1550 nm and 1625 nm for a multi mode fiber 70 dB to 850 nm 75 dB to 1300 nm mm NOTE To measure the widest range of reflection coefficient it is necessary to insert a variable optical attenuator between the reflectometer and the link to be tested This attenuator enables the level of the trace to be adjusted so as to avoid saturation of the reflectometer by the reflection to be evaluated Principle of bi directional measurement If fibers with different mode field diameters core size etc are joined the resulting OTDR trace waveform can show a higher backscattering level This is due to the increased level of backscattered signal reflected back to the OTDR in the downstream fiber AK Splice B K iren orm X 5 K sK Backscatter Coefficient Sa Splice Attenuation Fig 2 Normal splice This phenomenon can occur when jointing different types of fiber in multi mode or 2 fibers with different backscattering coefficients 4 User Manual 780000102 19 Chapter 1 Principles of measurement Principle of WDM system testing AK Splice BK B K Splice AK gt lt X S Dn ies E m X te KK KK AK SSAK Kok KK AK SyeS AK Fig 3 Positive splice A gt B Negative Splice B gt A The sum gives
66. 189 taking ref ORL 191 Zero adjustment ORL 192 LTS attenuation measurement 10 179 Configuration 180 Connection 180 insertion loss measurement 11 179 power measurement 10 178 source configuration 182 Manual ORL 196 Measurement acquisition 197 reference 197 results 198 Power meter measurements 186 ref measurement 185 zero setting 185 Source connection 180 Unit of power 181 Options 271 ORL manual measurement OFI 196 measurement OTDR 69 on saturated trace OTDR 70 OTDR acquisition parameters 33 automatic acquisition 49 Configuration 32 connector measurement 37 59 connector test 37 manual acquisition 51 manual measurement User Manual 780000102 19 Index ORL 69 manual measurements 66 measurement of slope 66 measurement of splice and re flectance 68 measurement parameters 37 multi wavelength acquisition 47 principle of measurement 2 Real time acquisition 45 results screen parameters 42 table of results 58 contents 59 notes 64 uncertainty 65 OTDR Bi dir acquisition parameters 80 adding markers 90 cable test 91 file management 90 measurement parameters 81 OEO results 89 OEO traces 89 Origin and end traces 88 performing measurement 82 troubleshooting 92 Overlay traces adding 28 display 27 removing 29 Overlaying traces WDM 117 P PMD acquisition parameters 134 Display of results 143 graphic display 145 information messages 146 measurement parameters 136 Measurement pr
67. 1dB Modification of the backscatter coefficient K changes the measurements of reflectance and ORL mmm With the CWDM Module the selection is as follows For lasers 1271 1291 1311 1331 and 1351 select the line 1310 SM For lasers 1371 to 1511 select the line 1360 1510 SM For lasers 1531 1551 and 1571 select the line 1550 SM For lasers 1591 and 1611 select the line 1625 SM Auto Backscatter coefficients are selected automatically for each wavelength The default values are given in the paragraph Reflectance on page 3 Launch cable End Receive Cable Start mmm NOTE The parameter Receive Cable Start is not available in Fault Locator mode No All the results are displayed and referenced on the basis of the board of the plug in 40 User Manual 780000102 19 Chapter 4 Reflectometry measurements Configuring the reflectometry test Evt1 2 3 The results relating to the launch cable are eliminated from the table Attenuation and distances are then measured on the basis of the marker Evt 1 2 or 3 selected The parameter Launch Cable Start in Fault Locator mode cannot be configured according to an event number Distance Use the Edit Number key to enter the distance from the begining of the Launch cable until its end and or from the end of the Receive Cable until its start 7 the total length of the cable See Figure 18 on page 41 Or affect the active cursor value using the Set Cursor
68. 4 modules contain one reel of singlemode fiber with two jumpers to be used as a launch or receive cable with an OTDR These modules can also be used for demonstration and training purpose mE NOTE As these modules are not test instruments they are not supplied with a certificate of calibration 82LFSM2 82LFSM4 Type of fiber used Corning SMF 28 or SMF 28e Recommended group index 1 4677 1310nm and 1 4682 1550 1625nm Fiber length 2 km 0 02 0 11 km 4 km 0 03 0 21 km Connectors Attenuation 0 5 dB 1 Connectors cleaned in good conditions MTAU modules Typical values at 25 C unless otherwise specified 81MTAU2 81MTAU4 Wavelength range 1260 1640 nm Insertion Loss max 1 dB 1 5 dB Return Loss max 50 dB PDL max 0 1 dB Repeatability max 0 01 dB 1 Polarization Dependent Loss 2 At constant temperature and polarization User Manual 780000102 19 267 Chapter 16 Technical specifications OFI modules OFI modules Bi directional loss specifications Typical values at 25 C unless otherwise specified mes NOTE This applies to the 81xx OFI modules To ensure optimal use bi directional measurement and communica tion two units are required Source function also valid for source mode 81xx OFI Module Laser type Class 1 1310 20 nm 1490 3 nm Central wavelength 15504 30 nm 1625 5 nm Nomin
69. 46SRL module Short Range LAN 25 23 40 38 37 dB 850 1300 1310 1550 1625 nm E8156SRL OTDR module UHR plug ins Reference Ultra High Resolution Filtered 1650 nm OTDR plug in E8118RUHR65 Patch cords for MR LR and VLR modules References 1625 nm bandpass filter integrated in a 3m patch cord SC PC EFJ1625FPCSC 1625 nm bandpass filter integrated in a 3m patch cord FC PC EFJ1625FPCFC 1625 nm bandpass filter integrated in a 3m patch cord SC APC EFJ1625FAPCSC 1625 nm bandpass filter integrated in a 3m patch cord FC APC EFJ1625FAPCFC CWDM modules Reference CWDM OTDR plug in module 1551 1571 1591 1611nm with in E81400TDRCWDM service testing capability CWDM OTDR plug in module 1471 1491 1511 1531nm with in E81400TDRCWDM2 service testing capability CWDM OTDR plug in module 1271 1291 1311 1331nm with in E81400TDRCWDMS service testing capability Source Option for CWDM OTDR Reference Source Option for CWDM OTDR plug ins E810TDRLS WDM PMD Modules PMD Plug in Band S C L E81PMD 274 User Manual 780000102 19 Chapter 17 Options and accessories References of measurement plug ins PMD modules Reference PMD AP WDM plug in Band O E S C L E81WDMPMD WDM modules Reference WDM plug in Band S C L E81WDM PMD accessories Reference Polarization Scrambler Module E81PSM Optical variable polarizer not necessary for 81XXX plug ins EOVP 15 Broadband source for PMD AP and CD measurements EOBS550 ODM Module
70. 5 Shift function odes ees dime ERR EDS eR ER Eo d 25 Zoom Auto OTDR 000 eee ee 26 Full scale OSA PMD AP ssss sen 26 Overlay trace function elles 26 Overlaying several traces stored in memory 27 Display of traces in overlay 0 00 00 ce eee 27 Adding traces in overlay isle lessen 28 With OTDR traces i aoe n eenean un i esee 28 Overlaying the current trace with OSA traces 28 Swapping overlay traces 00 ce eee ees 28 Changing the traces position OSA 29 Trace resulting from the difference between two traces OSA 29 Removing a trace lslele ee 29 Removing the current trace in overlay 29 Removing all the the traces in overlay 29 Quitting the overlay menu llsseses eese 29 Saving when the instrument is shut down 29 Chapter 4 Reflectometry measurements 31 Selecting the function 000 eee eee ee eee 32 Configuring the reflectometry test 32 Acquisition parameters auauua auauna 33 Measurements parameters 0 00002 eee 37 Result SCreen stove do de ee eee eas 42 Traffic Detection and connection quality indicator 43 Traffic Detection le tke ee ee ee ees 43 Connection Quality indicator llle 44 Acquisition in Real Time mode 45 Principle of Real Time mode suss 45 Per
71. 6168 164118 tamus 154118 nue i628 Free space available jon the selected media tines 1841 10 do 0 z10r 26 teat wa e OM Um eno 7210 1108 fr MM Ge aides Suswomm Ezo ona eas Fig 122 Example of explorer For saving or recalling data the Base Unit offers a wide choice of media both built in and external Free space on selected media is clearly displayed at the bottom of the left panel An internal memory A hard disk or high capacity storage on option If this option is selected then the hard disk replaces the internal memory A3 1 2 in floppy disk drive on option 8000 platform only A CD RW drive on option 8000 platform only The Base Unit is equipped with 2 USB ports as standard One of these can be used to connect an external storage medium in particular a USB memory stick NOTE Although two USB ports are present it is not possible to use simulta neously more than one external USB storage medium High capacity USB stick such as 2Go or higher are not recom mended User Manual 780000102 19 Chapter 14 File management Explorer Function USB memory stick connection Insert the USB memory stick in one 8000 6000 Base Unit s USB port A beep is emitted to confirm the successful insertion and recognition of a USB memory stick Then the icon rx is displayed in the upper banner to inform the user the USB stick is ready to be used Do not connect a US
72. 80000102 19 203 Chapter 12 Multi Test Access Unit Auto mode Auto mode The auto mode offers the best way to test a full cable The purpose is to set a sequence of operations which will be performed for each fiber one after the other with no need to modify the configuration or to go to each measurement tab All operations can be handled from the MTAU tab mes NOTE The switch between measurement if necessary is automatic Never theless launching each measurement remains the user responsibility as some extra equipment might be needed ex broadband source for PMD Select Auto on the key Manual Auto to switch to auto mode or vice et versa __ Ae Ez EB Icons representing available functions Links showing that OTDR will be performed on port A PMD and AP on port C Different icons appear at the top of the screen showing different avail able functions According to your Base Unit configuration you may have all the following functions available Eom Cosi Caen dar i Eeo C Dun Fig 99 Auto mode for the MTAU plug in OTDR PMD CD AP OSA 204 User Manual 780000102 19 Chapter 12 Multi Test Access Unit Auto mode Configuration 1 Make sure you select all necessary functions in the SETUP menu of the sequence of tests m NOTE Icons for selected functions appear in yellow icons for available but unselected functions appear in grey 2 Goto each tab if necessary to
73. 81WDMPMD Measurement time 6 seconds independent of the PMD value 6 seconds independent of the PMD value Dynamic range Up to 58 dB Up to 45 dB Measurement range 3 0 080 ps to 130 ps 0 080 ps to 60 ps Type B Uncertainty 0 020 ps 2 PMD Repeatability 0 025 ps Without averaging Up to 150 ps for weak coupling Traceable to NPL standard Weak coupling from 0 1 ps to 60 ps PMD range RON ODM Modules Typical values at 25 C unless otherwise specified Chromatic Dispersion E81CD E81DISPAP 80km G652 10km G655 Wavelength Acquisition Range 1260 1640 nm Wavelength Uncertainty 0 1 nm Minimum length 1 km Dynamic Range 45 dB 55 dB Zero dispersion wavelength uncertainty 1 5 nm Zero dispersion wavelength repeatability 0 1 nm Dispersion Uncertainty gt 4 0 05 ps nm km 0 1 ps nm km Dispersion Repeatability 3 4 0 005ps nm km Slope at Zero Wavelength Repeatability 3 0 5 0 1 Measurement Time From 40s to 80s 1 With Broadband Source module E81BBS2A unless specified 2 With handheld Broadband Source OBS550 in High Dynamic mode 3 20 measurements 1530 1570nm band Excluding reference fiber uncertainties 4 5 262 User Manual 780000102 19 Repeatibility refers to the typical one sigma standard deviation value obtained for system cycling over Chapter 16 Technical specif
74. AU modul s 2 LR RAE 267 OFI modules lessen 268 Standalone power meter 0 00 ee eee eee 269 Warning accen Jed ones teat eee eee ee et eee 269 Chapter 17 Options and accessories 271 References of measurement plug ins 272 OTDR Modules 2 000 cece ee 272 WDM PMD Modules 00200002 eee 274 ODM Module sil dace eee wee ee ee 275 BBS ModulleS o RR pee ee nA 275 MTAU Modules 20000 0c eee eee eee 275 OF Modules i246 ecu tu ai shen Bae ety neon denne 276 Launch Fiber Modules 02200000005 276 User manual references lese 276 References of optical connectors and adapters 276 References of result processing software 278 Appendix A RoHS Information 279 Concerned products 8100 modules series 280 Concerned products OTDR 8100 Modules Series 281 Concerned products All OTDR VLR 8100 Modules Series 282 Concerned products PMD and WDM 8100 Modules Series 283 Index 285 User Manual 780000102 19 xix Table of Contents XX User Manual 780000102 19 About this guide The MTS TBERD series of JDSU provides a portable modular platform designed for the construction validation and maintenance of optical fiber networks The modules described in this document are applicable for the following platforms MTS 8000 T BERD 8000 MTS 6000 T BERD 6000 The topics discussed in this chapter
75. Activation process leere 214 Remote interlock connector Lse 215 Chapter 14 File management 217 File configuration menu eee 218 Managing tabs 0 2 00 cece eee eee 218 Eile signat re i ehe dase tay det Saas tutes 219 xvi User Manual 780000102 19 Table of Contents File information 00002 cece e eee eee 219 Current directory 20 0 c cece eee eee 219 Rules for naming files 0 00000 cee eee eee 219 Name of afile 0 00000 cee eee 221 AUO SIOFO iach Bice desta SEC Pc AU adeste 221 File Type Save Mode 0c cece eee 221 Fiber Description 000 0c e eee eee 222 Fiber ID and Fiber Number lessen 222 Golor code s use e etr eee er Rd ERU 222 Fiber Nbr Increment 2 000 e eee eee 222 Link desctription Arie eset woke iets re ee eus 223 Extremities are different 00 00000 224 Cable ld i esae e eer o ead 224 Direction 0 eee Ie 224 Orlgily 4 3 ele chet TREN dE d em Ls dst hus duet A 224 End Location 0 0 00 eee 224 Cable structure 0 0 00 cece 224 Operator 2 6 eee 227 COMMENt x oir eem dan enter ibunt sone Ree oa 227 File export wi oe rs ee bs eves Be ee ee E ee 227 Buttons on the right of the screen 228 Explorer Function eese 229 Description of the explorer lsllsee eese 229 storage
76. Adjustement of the ORL Zero Once the reference has been taken the reference screen is updated for the wavelengths available on the local instrument It indicates the type of reference used and serial number of the local instrument are displayed on the first line of the table If not the message Ref ORL Incomplete is displayed i Once the two references are complete the date as well as the type Measurement Before making an automatic FOX measurement check that acquisition both Base Units local and distant as well as the OFI module on each instrument are powered on and the FOX function selected 192 User Manual 780000102 19 Choosing the fiber to be tested Making the measurement Chapter 11 OFI Module FOX Function the FOX function is correctly configured SETUP menu each end of the fiber is correctly connected to the module the fiber and jumpers are in good condition To display the fiber measurement page push the RESULTS key The page displays Both instruments connected to the link local and distant The Results table with the last measurement made The tested fiber parameters Once the results page is displayed push the START STOP button The details of the next fiber to be tested are displayed Emo 33x a EE Cable Id cable 1 Fiber Id Fiber Code Fig 91 Details of the following fiber to be tested To test a different fiber to the one displayed select the new
77. B for Input Port Measurement procedure using one port If only one port is selected the Base Unit is ready to perform the Acq in signal before being amplified by EDFA User Manual 780000102 19 EDFA results Chapter 7 Optical Spectrum Measurement EDFA results analysis 1 Connect your Base Unit to your fiber before the EDFA 2 Click START STOP to perform the first acquisition 3 Switch to Acq Out 4 Connect your Base Unit to your fiber after the EDFA 5 Click START STOP to perform the second acquisition Results appear automatically in the table Select which trace to view Select which acquisition you are working on amp am PO ue iMm ae AP tum s I Fig 46 EDFA measurements Measurement procedure using two ports If two ports are selected the Base Unit will perform both Acq In and Acq Out in one step 1 Connect your Base Unit to your fiber before the EDFA on port A and your fiber after the EDFA on port B Click START STOP to perform both acquisitions Results appear automatically in the table A table is displayed see EDFA measurements p 121 showing for each channel S In Signal power before EDFA expressed in dBm N In Noise level before EDFA expressed in dBm S Out Signal power after EDFA expressed in dBm User Manual 780000102 19 121 Chapter 7 Optical Spectrum Measurement DFB results analysis N Out Noise level after EDFA expressed in dBm Gain Power
78. B below the peak of a non saturated reflecting event at shortest pulsewidth 4 ADZ measured at 0 5 dB on the basis of a linear regression from a reflectance type FC UPC 55 dB at shortest pulsewidth Distance Ranges for MM modules Ranges S 20 ns 50 ns 200 ns 0 5 km 1 km 2 km 5 km 10 km x xixixixixi s5 20 km X KX KY x KT x X X X x KL KY Xx 40 km X XxX XxX x Xx x x 80 km Ranges for SRL Multimode modules 3 ns 10 ns 30 ns 100 ns 300 ns 0 5 km 1 km 2 km 5 km xIxix xix 5 10 km 20 km x x xx x x x x 40 km xj x KY x x x X Xx x x Xx 80 km 258 User Manual 780000102 19 Ranges for UHD modules Chapter 16 Technical specifications OTDR Modules 5 km 10 ns 30 ns 100 ns 300 ns 10 us 20 us 10 km 20 km 40 km X x x x Xx 80 km 140 km xj x x x x x xX XxX XxX x Xx Xx 260 km X X X X Xx KY Xx xX XxX X x KT Xx X XxX KK Xx 380 km lt x x x xx x x x xx Ranges for LR VLR MR SRL Singlemode modules 2 km 3 ns 30 ns 100ns 300ns 1us 3us 10 us 20 us 5 km 10 km 20 km 40 km 80 km x x x x x 3 140 km xX XxX xX x x X Xx x x x x x x Xx 260 km xj xj x x x x x x x
79. B memory stick while a USB printer is printing If the 8000 6000 Base Unit does not emit a beep disconnect and recon nect the USB memory stick do not perform this action too quickly wait 5 seconds between the disconnection and reconnection If after several trials no beep is emitted two problems can be consid ered A previous USB memory stick has not been properly disconnected Go to USB memory stick disconnection on page 232 the USB memory stick is not detected by the Base Unit use another USB memory stick or transfer data via Ethernet see user manual of the 6000 or 8000 Base Unit to access the internal memory via a PC In case of errors the icon is displayed The stick is not formatted The stick has been removed without prior EJECT USB key use and some applications are still using it If the size of the free space is not correct the USB memory stick must be formatted Press the SYSTEM button Successively select Expert Tools gt Media Utilities Usbflash Format Confirm your choice to format the USB memory stick Once formatted disconnect and reconnect the USB memory Stick As for any media formatting please note that all data present on AN the USB memory stick will be irremediably lost User Manual 780000102 19 231 Chapter 14 File management Explorer Function the move on the screen does not mean that writing of data into the memory is complete Some data may still be in a writing
80. B test press the SETUP button In the Measurements section set Type on DFB A new DFB sub menu is offered while other Setup parameters are the same for DFB as for WDM measurements Refer to OSA optical spec trum analyzer Setup on page 98 for a complete description DFB sub menu Bandwidth level Level expressed in dBc where the main component bandwidth should be calculated Min SMSR Minimum offset value to consider to find the Side Mode Max SMSR Maximum offset value to consider to find the Side Mode Measurement procedure 1 Use a patchcord to connect your DFB laser source to an input port of the OSA XXX module on the Base Unit 2 Poweron the DFB laser source 3 Click START STOP to perform the acquisition The trace and corresponding results appear automatically after a few seconds Select which DFB you are working on i e e oee o pme m P A Fig 47 DFB measurements User Manual 780000102 19 123 Chapter 7 Optical Spectrum Measurement DFB results analysis Cursors A and B are automatically positioned on the first DFB laser respectively on the max SMSR and the pick of the main component DFB results A table is displayed see DFB measurements p 123 showing for each DFB Channel Number of DFB laser detected Wavelength Wavelength expressed in nm of the DFB main component Level integrated power expressed in dBm SMSR Side Mode Suppression Ratio expressed i
81. BS1A and 81BBS2A Optical broadband source modules Fiber inspection scope with associated optical connector tips Cleaning kit Two fiber patchcords with required optical connectors me NOTE Method used to measure the Polarization Mode Dispersion PMD is described in the Reference Guide to Fiber Optic Testing Vol2 mes NOTE The PMD value obtained by the fixe analyzer method is the mean DGD value also designated as PMD value PMD Activation and self calibration 1 Select the PMD function in the Instrument SYSTEM menu To do this press the SYSTEM button then select the PMD function and press the key eo oH Bele gge Fig 51 PMD icon selected 2 Press the button RESULTS to display the auto calibration status A bargraph tuning in progress informs of the progression status of the calibration at the bottom of the screen Wait for the calibration to be fully completed before continuing 132 User Manual 780000102 19 Chapter 8 Polarization Mode Dispersion Measurement PMD Activation and self calibration 3 Press the button SETUP to access to the configuration menu for PMD Use the keys A and W to move the cursor to the different parameters and the keys and gt to modify a value Setup menu To access the PMD test setup menu press the SETUP button on the Base Unit The different measurement parameters are displayed You can choose the default values by pressing the Test Auto key or define y
82. LC Adapter EULCAD P i B ST Adapter EUSTAD PC or APC Connector SC Adapter EUSCAD Fig 9 5 different types of adapters may be mounted on the universal connector Switching In order to switch from an adapter to another proceed as shown adapter type Pull out in the direction of the arrow in order to release the adapter from the A To place an adapter position the handle as shown in order to engage with the the lugs push hard and pull the handle down Fig 10 Removing and refitting an adapter Cleaning the Remove the adapter in order to access the ferrule and clean it using a Universal cotton swab connector 16 User Manual 780000102 19 Graphical User Interface This chapter describes the graphical user interface of the Base Unit used with the optical measurement plug ins OTDR WDM etc The topics discussed in this chapter are as follows Display screen on page 18 Using an external keyboard mouse and screen touch options on page 21 Functions relating to display of a trace on page 23 Overlay trace function on page 26 Saving when the instrument is shut down on page 29 User Manual 780000102 19 17 Chapter 3 Graphical User Interface Display screen Display screen The display screen is divided into a number of different zones Starting from the top these are astatus bar in w
83. LINK MGR key and allows to display the explorer with all the link information for the active application Click as many times as necessary on the key MENU EXPLORER LINK MGR to select FIBER INFO and display the corresponding files for the active tab mmmmES NOTE The Fiber Info function is only available with the OTDR CD OSA PMD AP and FOX functions User Manual 780000102 19 239 Chapter 14 File management Link Manager Function For exemple if the Link Mgr function is selected in the tab OTDR only the link information from the OTDR files will be displayed wether in multi mode or singlemode Tab selected wr EJotocion ys Fig 126 Link Manager function with OTDR files only According to the application selected the fiber information available are different The table below describes the fiber information displayed for each selected tab S NOTE The files in the Link Manager window can be sorted according each column available for a tab Table 2 Fiber Information displayed Pardini OTDR CD OTDR CD ODM amp OEO ist Alarm status icon amp Fiber number 2nd Direction 3rd Lambda Length Length Nb Channel Length Length Length Ath Total LO LO Power Max Delay 1 AP L1310 Loss 1310 nm 5th Fiber S0 S0 Power Min Coeff 1 AP L1550 Length 1650 nm 6th Nb of Dispersion Dispersion OSNR Max Delay 2 AP L1625 Event at 1550 nm at 1550 nm 1625 nm
84. Laser line and define a pulse b Once all lasers are configrued go back to the pulse line and select Multi you can define a pulse for all lasers a select All on the Laser line b select a pulse which will be comon to all lasers See Typical specifications of OTDR plug ins on page 276 Range This depends on the type of OTDR module The possible range depends on the pulse length selected This range is given for each pulse length in the para graph Ranges on page 279 This parameter is exclu sively configurable in Expert mode Manual The Auto parameter allows to detect automatically the range In Auto mode the range is selected as a function of the end of the fiber Resolution From 4 cm to 160 m according to module No calibration of the measurement The choice offered depends on the range and pulse selected In Auto mode resolution is selected automatically according to the last two parameters above High Resolution the highest resolution is applied High Dynamic the highest dynamic is applied This parameter is exclusively configurable in Expert mode Manual Acquisition time Real time the MTS T BERD 8000 performs up to ten acquisi tions per second and displays the resulting trace in real time together with an indicator of the state of the connection This mode makes it possible to analyze a fiber quickly without any memory effect and thus to check the establishment and quality of the connections Us
85. MD delay Only if Coupling is set to Strong PMD2 Coeff Maximum allowable second order PMD coefficient Only if Coupling is set to Strong Delay and coefficient values for PMD and PMD2 can be modified with the directions keys or using the Edit Number key Performing a PMD measurement with a PMD test module The following modules apply E81PMD E81DISPAP User Manual 780000102 19 137 Chapter 8 Polarization Mode Dispersion Measurement Performing a PMD measurement with a PMD test module Remote operator Local operator 138 E81MRDISPAP Handheld or module broadband sources can be used to perform PMD measurements OBS 55 OBS 500 OBS 550 81BBS1A 81BBS2A The following procedure considers the use of an OBS 5xx type source 1 Inspect and clean connectors with appropriate methods as described in IEC 61300 3 35 2 Connect the fiber under test to the optical connector of the broad band source using required mating solution such as a fiber patch cord 3 Press the ON OFF button to switch on the OBS 5XX broadband Source 4 Press Laser On Off of the OBS 55 or the Active button of the OBS 5x0 to activate the source transmission Note Make sure the test mode is set to PMD when using the OBS 500 or OBS 550 1 Inspect and clean connectors with appropriate methods as described in IEC 61300 3 35 2 Connect the fiber under test to the optical connector of the test module using required mating solution such as a fiber patch
86. MD reference result User Manual 780000102 19 141 Chapter 8 Polarization Mode Dispersion Measurement Performing a High Resolution PMD measurement If the reference measurement does not provide a correct result check the following points Error message Possible problem Possible solution Acquisition impossible Auto calibration is not Wait for the calibration to be terminated Hit any key to continue completed Signal level too low The 81BBS1A is not Press the ON OFF button to switch on Check source and con switched on the 81BBS1A check if Make reference nections is still set to Yes then repeat step 6 Hit any key to continue The 81BBS1A battery Check if the LOW BATT red led is is too low lighted If yes then recharge the battery Defective connections Check that the cables are properly con nected and the notches on the connec tors are correctly aligned Performing the when the reference measurement of the broadband source has been measurement completed use the following procedure to start testing 142 1 Press the SETUP button to access the PMD configuration menu 2 Selectthe appropriate PMD test parameters according to your appli cation as earlier defined in this chapter 3 Press the START STOP button to start measuring 81BBS1A Signal input connector on the 81DISPAP or 81MRDISPAP module Fig 58 HR PMD measurement with a Polarization Scrambler Module PSM a 81DISPAP
87. Manual 780000102 19 Chapter 2 Getting started Universal connectors and adapters 2 When itis fully home press against the screen printed surface of the plug in while tightening the the securing screws The screen printed surface of the plug in must be flush with that of the recep tacle 3 Make sure that the two large captive screws of the plug in are screwed fully home mmm NOTE UHD plug ins use very powerful lasers they must be connected exclusively to optical connectors equiped with zirconium ferules Using connectors equiped with metallic ferrules could damage the plug in connector Removing a plug in from a receptacle The Base Unit must be switched off and if it has a mains power sup N ply the adapter cable must be unplugged 1 Completely unscrew up to the stop the two captive screws securing the plug in 2 Carefully slide the plug in out of its slot Universal connectors and adapters Fiber Optic plug ins may come equipped with a universal connector and adapter selected at time of order Adapter typeS JDSU offers 5 different adapters all compatible with this connector allowing the user to switch from one adapter to another according to which fiber type he intends to work with Adapter types supplied are FC SC DIN ST and LC User Manual 780000102 19 15 Chapter 2 Getting started Universal connectors and adapters FC Adapter EUFCAD DIN Adapter EUDINAD 2 y DA t
88. Medial wie eui eel 2 be M RP ee 230 Storage media built into the Base Unit 230 External USB storage media 000 230 Standard Compact Flash card 8000 platform only 232 Remote Base Unit and data transfer 233 Abbreviations for storage media 05 233 Directory edit function 0 cee eee eee 233 Selection of directories llli eee eee 234 Edition of directories 0 0000 e eee 234 File editing function 0 llle 234 Format Of files sors settee etd o eet tone pad end Sere 235 Easy file selection llle 235 Multiple selection of files 0 0 0 0 00 0 eee 235 Commands relating to files 0000000 236 Saving Files from the Explorer 005 237 User Manual 780000102 19 xvii Table of Contents Loading files and displaying traces 238 Simple loading 0 00 0 c cece eee eee 238 Load with configuration 20 0 00 e eee 238 Load Trace Info with OTDR files only 239 Display of several traces in overlay 0 239 Link Manager Function eese 239 Editing function llli 241 CD Rom burning MTS T BERD 8000 only 242 Chapter 15 Macros 245 Calling the Macro function s sees 246 Macro recording elles 246 Standard macro 0 00 0 cee eee eee 246 File
89. O O O GIRL o o Oo Oo Oo Oo BAJ o o o o o PUE KE PE o o o 9 o v Ti dur o o Oo Oo Oo Oo Jt Fi Be x Oo Oo Oo Oo Oo 4 M Poe LITERE RE o o o Re EE o o o o o PRE o Oo Oo Oo Oo Oo E 9 o o Jr ROSE ROS o o 6 Uk Oo O O O O O FEVE EAE AED A A o o o o o T C All i E o o O O O O Jtt MHE o o o o o o O KRZA EA de M Rote VIE BC OS A EE SJ T11363 2006 X RRA EA SL CR D de KA D E 19 OH RUP DO ER SJ T11363 2006 User Manual 780000102 19 283 Appendix A RoHS Information Concerned products PMD and WDM 8100 Modules Series 284 User Manual 780000102 19 Index A Accessories 271 Adapter reference 276 switch 16 types 15 Attenuation 10 65 179 Attenuation profile acquisition parameters 151 measurement 154 measurement parameters 152 measurement procedure 157 results display 158 results table 160 Backscatter coefficient 4 Battery on microprocessor board 16 BBS activation 214 function 214 remote interlock connector 215 Bend 38 Bi directionnal OTDR User Manual 780000102 19 principle of measurement 4 C CD acquisition parameters 166 Configuration 164 results sreen parameters 167 CD ODM Acquisition 172 Configuration 164 File Management 176 Reference Measurement 169 Results 174 CD ROM burning 233 Channel filtering OSA 117 Coefficient of reflection 3 4 Commands external keyboard 21 Connectors references 276 Cursor 2 cursors metho
90. O O o 77 o o fe THER O O O Oo Oo O Aa eR ERDEH O Oo O O Oo Oo EVENT Oo 0 Oo Oo Oo Oo DES s nmt O O O O O O Shi FLAS AEC Bt oO O Oo 0 Oo Oo JIK O o s fe HEVE FAFAU EDI et BL O O O O O RE O O O o Jab Oo oO O O O O O RAZA EEA SCC TEE BE SEIZE SJ T11363 2006 X KRZA SA EAD LEB EE SOA ee oH SJ T11363 2006 User Manual 780000102 19 281 Appendix A RoHS Information Concerned products All OTDR VLR 8100 Modules Series Concerned products All OTDR VLR 8100 Modules Series 8118 VLR 24 38 45 48 49 65 8118R VLR65 8128 VLR65 8138 VLR 24 38 49 8148 VLR 24 38 49 China RoHS E TIA AP indu Re bl EE I UB APNE 39S DEBS ade HE China ROHS 22 sk f P d Pp f 1 RCRUM CA PUR BS oa di FFE BLANC AY I FE o t PARAR XXXXXX H Gi Ak H 3 E Ws VUE HE FEE BE m Eo IE o BE A Ee ERREUR CE A PAD 25 dy ses Pr FR RC C IN AREE ELE BUTS Dee A HEISE ETE ET te A SE SANA IER BUPRIE 3T APRA IE IE RES Ibn TE 8 RO TR FE TE Du B 25 p i RO BE RUE E HN iS 25 p d A SME UE WUE A 4 8G RA MUR Dr ERRER ABE WAM BTE BK fii Pb xk Hg 4 Cd KMKR iRNCE PBB Z1 BE PBDE XH o o v o o Pin res i o WU v v o o PEU o Lr o 9 9 o bit
91. OADM network test With OSA 320 or 500R it is possible to measure the true in band OSNR using the polarization nulling technique Here is a test setup for in band OSNR testing Example osaz0 osas2o osasz0 osas20 E OSNR measured with in band OSA 320 or OSA 500R at terminal site 1 provides value of 14dB Service failed as the OSNR is 20 dB Fig 49 Test setup for In band OSNR testing User Manual 780000102 19 125 Chapter 7 Optical Spectrum Measurement Measurement of OSNR How to locate the failure Perform the following tests at EDFA monitor access points 2 5 Check per channel input and output power of EDFA gt input power must be in the system specified range Check power uniformity gt Equal power levels for all channels at EDFA output Compare OSNR from EDFA to EDFA OSNR may decrease because of the amplifier noise figure NF type 3 4 dB per EDFA Locate and exchange optical amplifier Measurement of I OSNR Pre setting the As the out of band OSNR measurements might not provide the TRUE OSA for an in OSNR value for the above listed systems configurations the in band OSNR measurement method based on JDSUs polarization nulling tech band OSNR nique must be selected measurement it 1 P SETUP until OSA test set ress unti est setup appears I OSNR mode FE 126 2 Press Test Auto I OSNR button The instrument will be set for in band OSNR measurements L
92. OLIRLMZHEBEUwow rosmR DFe D EDFA LED FPL Channel detection OSNR gt Splitter Compensation All Parameter settings will be done automatically The following parameters will be pre set Sweep mode single Sweep range ext C band 1525 1570nm covering all EDFA applications J OSNR sensitivity needs to be set manually see below Resolution full i e highest resolution Channel detection permanent auto detection of channels amp ch spacing User Manual 780000102 19 Chapter 7 Optical Spectrum Measurement Measurement of OSNR Min channel spacing std 50GHz needs to be adjusted manually see below OSNR method needs to be adjusted manually see below noise Acq BW standard 0 1nm SNR meas Type S N indicates real signal to noise measurement Select Show I OSNR trace Yes 1 oot oe Gaa Manuel Aarma Mene Warelength Pange Ane Motes Tabte Mo Laat mm we KZS In the I OSNR mode the polarization nulling trace can be displayed on the screen by activating the show I OSNR trace to YES A blue trace will then show the progress of the suppression of the polar ized signal by the polarization nulling method Manual Settings I OSNR sensitivity I OSNR sensitivity will set the number of measurements performed for polarization nulling Low fast mode lt 2 min measurement time Fast measurement with small number of polarization nulling measurements gt can be used for a first check whe
93. Quality indicator on page 44 Phase 4 The elapsed averaging time and the number of averages calculated are displayed When the duration of acquisition has elapsed the automatic measurement is carried out mes NOTE The acquisition can be stopped at any moment by pressing the START STOP key Then an automatic measurement is performed grace LIS JA di 1457248 B 1145 01m 14 57248 0 000dB m Summary Advanced Elapsed Number of Elapsed Remaining Total acquisition acquisition time averages calculated time acquisition time time Fig 22 Example of automatic acquisition At the end of Auto acquisition the parameters are automatically updated in the Acquisition menu Moreover a beep is emitted in case of alarm orization of the position of events on page 70 the measurement is Auto acquisition mode deactivates the Set Event function see Mem N then re initialized 50 User Manual 780000102 19 Chapter 4 Reflectometry measurements Acquisition in Expert mode Multi wavelength f the module possesses several lasers to perform successive acquisi acquisition tions on all the wavelengths in the SETUP menu check in Laser line that several lasers are selected or select All Start the acquisition by pressing the START STOP button Once the acquisition for the first wavelength is finished or to stop it manually click on Stop Wavelength to stop the measurement for this wavelength and automatically start the measur
94. START key The OSA XXX will scan over the entire wavelength range and the measurement result will be displayed in graphical and tabular format 1 Fast acquisition not available for OSA xxx modules press the START key and hold it down for some time 2 Normal acquisition press the START key briefly Only Normal acquisition mode operates with modules OSA XXX When acquisition is complete an automatic measurement is performed Trace display functions 110 The trace acquired or recalled from a memory is displayed on the Results page see example Figure 11 on page 18 User Manual 780000102 19 Display of the WDM OSA results Chapter 7 Optical Spectrum Measurement Trace display functions A range of functions enable modifications to the display of the trace Cursors Zoom Shift Event Trace Trace Table Full scale etc See Functions relating to display of a trace on page 23 See Overlaying several traces stored in memory on page 27 for overlay of traces The results window obtained by pressing the RESULTS button shows different zones displaying from top to bottom the mini trace in the upper part of the screen accompanied by the principal characteristics of the acquisition and of the file if the result is stored in memory the trace results associated with cursors A and B the trace proper see Trace display functions on page 110 the table of results see Table of results on p
95. Show Fit Formula No Storage parameters see Chapter 14 File management Auto Store Yes Increment Fiber Number Yes Manual Mode in manual mode you can set your own parameters Configuration To define your own configuration choose the parameter to be modified using the direction keys then choose the option for this parameter with the keys 4 and gt Acquistion Band sess sa Power Check No Known Length Fiber Length 50 620 km Distance Unit km Approx formula ST Sellmeier Amplified Link dari d Wavelength Range Nonmalived to km Yes Show Measured Points Fig 72 Configuration of CD test The configuration parameters of the CD test are described below User Manual 780000102 19 165 Chapter 10 CD measurements using phase shift method Configuring the CD test Acquisition parameters Acquisition band with 81DISPAP modules Power Check Last Reference BBS Type BBS Serial Number Measurements 166 parameters OESCL measurement performed over the full wavelength range OESCL bands SCL measurement performed over a wavelength range limited to S C and L bands NOTE In cas e of OBS5xx handheld sources the measurement will be per formed exclusively on SCL band This parametyer enables to get a power level indication at the start of an acquisisition only with 81DISPAP or 81MRDISPAP modules No the received power is not indicated before starting the
96. The gain slope measured by a method using a least squares algo rithm on all detected channel using peak power levels or channel power levels To display these results above the channels Press the Advanced button Press Measure A lt gt B button Select the cursor and set it to the measurement range limits Press Tilt Slope A lt gt B The Gain Tilt is displayed in dB The Gain Slope is traced and displayed as value dB THz or dB nm according to the units selected A OND Disable the Tilt and Slope by pressing the Tilt Slope button again cee awa tt ter Fig 44 Display of total power gain tilt and slope of the gain between the cursors User Manual 780000102 19 113 Chapter 7 Optical Spectrum Measurement Table of results Table of results Lines According to the choice made in the SETUP menu the table of results may include either a line for each channel detected if Channel Selection Permanent ora line for each graduation if Channel Selection Grid and a grid is selected Type of display The table may be displayed in a single line on half of the screen or the whole screen as a function of the Trace Table key see lt Trace gt Table key p 111 Contents of the table without statistics In the absence of statistics see Measurement parameters p 103 the parameters given for each channel are 1 the number of the channel 2 the frequency or the channel wavelength according to
97. ace To remove all the traces except the current trace press the key Remove Other Traces To quit the overlay menu press the Exit key Saving when the instrument is shut down When the instrument is switched off all the parameters and all the traces are saved and will all be recalled at the next start up User Manual 780000102 19 29 Chapter 3 Graphical User Interface Saving when the instrument is shut down 30 User Manual 780000102 19 Reflectometry measurements Pressing the START STOP key is all that is needed to start or stop a measurement However it is necessary to configure the measurement and the type of results desired This chapter describes the different stages in a reflectometry measure ment made using an OTDR plug in and the OTDR function of a 5083CD plug in The topics discussed in this chapter are as follows Selecting the function on page 32 Configuring the reflectometry test on page 32 Traffic Detection and connection quality indicator on page 43 Acquisition in Real Time mode on page 45 Acquisition in Fault Locator mode on page 47 Acquisition in Quick Link Test mode on page 49 Acquisition in Expert mode on page 51 Results page in Fault Locator mode on page 53 Result page in Expert and Quick Link test mode on page 55 Advanced functions in Expert mode on page 61 Reference Trace function on page 71 File Ma
98. acing is 50GHz as only every second channel is loaded This could also be the case when 50GHz optical inter leavers are used to multiplex two 100GHz spaced WDM signals even and odd channels together into a 50GHz spaced system gt min ch spacing needs to be set to 5OGHz Example 2 submarine links Submarine links often pack 3 channels into the ITU T 100GHz grid min ch spacing needs to be set to 33GHz Manual Settings OSNR method The OSNR method can be set according to the application nia OP ues Vode WOM OSNR Channel detection gt ne v Spliner Comgensarse nilteredi copes Meise Acq BW OJ nm Standard OSNA meas type SiN ROADM networks networks with optical filters in the link Set OSNR method to filtered pre set 128 User Manual 780000102 19 Chapter 7 Optical Spectrum Measurement Measurement of OSNR In band noise approximation will be done automatically to match the in band noise distribution of the measured filter shape whatever shape it is flat top or rounded gt set OSNR method to filtered Overlapping spectra systems with Overlapping spectra having no filter in the link e g submarine links or 40 100G links at 50GHz channel spacing gt set OSNR method to unfiltered In band noise will be approximated as a flat distribution Performing an In the IL OSNR mode the instrument performs multiple scans for one in band OSNR measurement During each scan the pol
99. age 114 The trace represents power in dBm as a function of frequency in THz or wavelength in nm The channels detected are represented by peaks NOTE If several acquisitions are performed the trace displayed is the one corresponding to the last acquisition Successive zooms on the different channels Zoom on one of the channels as shown previously Press the Trace gt lt Channel key Use the 4 amp gt keys to move the zoom on the successive channels lt Trace gt lt Table gt key This key offers a choice from the following displays Trace alone main display of the trace with a single line of the table at the foot of the page Trace Table display of trace reduced in size but followed by 5 to 8 lines of the table of results Table display of the table alone User Manual 780000102 19 111 Chapter 7 Optical Spectrum Measurement Trace display functions Mini trace display Distance S to N Number of acquisitions Fiber Number us name Alarm result Wavelengths and power at point of trace referenced s by cursors A and B L m A 1300801mm 2 7148 H 13S 2m 42 774 Im tT 46227 60 0148 A SU t Number of a channel Wavelength and power Aaa difference between cur sors A and B Fig 43 Example of OSA test result with grid Channel detection threshold On the trace some peaks corresponding to noise could be mistaken for channels It is
100. al output level into 9 125 um fiber CW mode 3 5 dBm Modulated output level 3 dB lower Level stability Short term 15 min AT 0 3 K 0 02 dB Long term 8 hours AT 3 K 0 2 dB 1 After 15 min warm up Bidirectional loss function 1xx OFI M l FOX port 8 Q edule Dynamic range 60 dB Accuracy Loop back 0 25 dB without optical connection uncertainty Side by side 0 15 dB without optical connection uncertainty Display resolution 0 01 dB Type of detector InGaAs Type of fiber 9 um Precision of length measurement 1 5 3 to 200 km 1 After 15 minutes warm up 268 User Manual 780000102 19 Chapter 16 Technical specifications Warning Optical Return Loss 81xx OFI Module ORL measurement display range Up to 65 dB For wavelengths 1310 nm 1490 n 60 dB with APC connector type m 1550 nm and 1625 nm Display resolution 0 01 dB Accuracy 0 5 dB typical from 14 to 50 dB with APC connector Standalone power meter Standalone powermeter 81xx OFI Module Wavelength range adjustable per 1 nm Selectable wavelength 800 to 1650 nm 850 980 1300 1310 1420 1450 1480 1490 1510 1550 1625 nm and one user defined Auto A detection if signals are emitted by a JDSU source 850 1310 1490 1550 1625 nm Detected modulation 270 Hz 330 Hz 1 kHz 2 kHz Power Level Standard High Power
101. ally open will be used for the next acquisitions Update Trace With Ref apply the acquisition reference parameters to the loaded curve Performing a AP measurement When the reference measurement of the broadband source has been completed use the following procedure to make a measurement 1 5 Disconnect the mating adapter and connect each fiber patchcord to the end of the fiber under test Press the SETUP button to access the configuration menu Select the appropriate AP test setup according to your application as earlier defined in AP Activation and self calibration on page 150 Press the START STOP button to see the results within a few seconds Repeat step 1 to 4 for every fiber to be tested NOTE When the composite power of the input signal is higher than 20 dBm a warning is displayed and the signal is cut off lt j _ Fiber under test Fiber patchcord OBS 5XX Signal input connector on the 81DISPAP or 81 MRDISPAP module NOTE You can modify the fiber length without performing a measurement again The AP results dB km will be recalculated automatically User Manual 780000102 19 157 Chapter 9 Attenuation profile Display of AP results Display of AP results The AP results screen presents different zones see Example of a AP result on page 158 Trace display Wavelength range A rogne 1 ee CMe Clee AD oH dle 6 tte t 8
102. ample you can analyze the total loss on a link with launch cable Place one of the cursors at the end of the launch cable Select the other cursor Use the Set Event function The measurements displayed give the actual distance from the start of the link and the attenuation of the link plus the attenuation of the connection NOTE In Expert mode to display all the events make sure that the detec tion threshold selection in the SETUP menu is All Two types of tables of results are possible with the MTS T BERD 8000 A table with a line displayed under the trace and giving the type and characteristics of the event nearest to the cursor A table giving the type and the characteristics of all the events detected during the automatic measurements the 8 lines displayed correspond to the 8 events nearest to the cursor The line corre sponding to the event nearest to the cursor is highlighted This high lighting moves if the cursor is moved At the top of the table a line shows the generic parameters of the fiber numbers of events present total ORL of the link marker locking icon and launch cable length if selected Change of table To obtain the 8 line table select the Table function on the Trace Table Summary key To return to display of a single line in the table select the Trace function To scroll through the table if it contains more than 8 lines either select the Cursors function and move the select
103. and A The available choices then appear on the screen they depend on the function selected Make the choice by means of the direction keys lt q Acquisition You can choose the following acquisition parameters whatever the type parameters of measurement displayed on the trace Those measurement parameters are only linked to the next acquisi N tion If the acquisition parameters are not accessible check that the OTDR function has really been selected see Selecting the function on page 32 Mode Choose the mode of detection of events Expert the acquisition parameters are accessible by the user This mode can be configured either automatically or manually by the user select Auto or Manual in the Acquisition line see page 34 User Manual 780000102 19 33 Chapter 4 Reflectometry measurements Configuring the reflectometry test Quick Link Test the MTS T BERD 8000 starts an acquisition with an automatic configuration making the best compro mise for Pulse Range Resolution When acquisition is complete a measurement is made and the results are displayed Fault Locator the Fault locator mode allows to detect the end of fiber distance from the origin and by consequence to detect a possible break of this fibre see Principle of the Fault Locator mode on page 47 It also allows to display the total loss mee NOTE The mode selected is always displayed on the upper banner of the screen when the OTDR modu
104. ands Sweep Not available when used with the Polarisation scrambler Module in High Resolution PMD mode Continue Continuous measurement with a trace refresh and a real time display of the results Single Single measurement with associated results displayed Statistics A set of measurements can be performed providing result statistics This mode also gives access to the following parameters Long Term and Number of sweeps User Manual 780000102 19 Chapter 8 Polarization Mode Dispersion Measurement PMD Activation and self calibration High Dynamic Auto The Dynamic range is automatically selected No High dynamic mode is not used for measurement Yes High dynamic mode is selected for measurement Averaging acquisition It enables to improve the dynamic range of the measurement by reducing the noise level It is recommended to use the Auto mode and configure a manual averaging if needed only No No averaging of the acquisition sample Low Low averaging 4 samples Medium Medium averaging 16 samples High High averaging 32 samples Auto Averaging automatically selected An increase of the averaging can improve the dynamic range NOTE Power Check No No receive power level indication Yes Receive power level is indicated in bar graph NOTE When Yes selected acquisition stops if not enough power is received Make zero Only when used with the Polarization scrambler module in High Resolution PMD
105. anual 780000102 19 143 Chapter 8 Polarization Mode Dispersion Measurement Display of results Fiber Number of Coupling Cable Identification File Name Alarm Length acquisitions indicator imom Acq i Stroeg sbtoult 7 7 shouts 30km stromg 0 ps PMD delay second order x PMD delay coefficient Coefficient Fig 59 Example of PMD result mmm NOTE When several acquisitions are performed the trace resulting from the last acquisition is displayed Cursor To move the cursor s on the trace press soft key Cursor A Cursor B menu key then use the direction arrow keys and W or and gt The coordinates of each cursor intersection with the trace are indicated underneath the trace Zoom access in spectrum display In order to zoom in on the trace press the Zoom Shift menu key to display Zoom then use the direction arrow keys to zoom in either hori zontally or vertically The zoom is made around the selected cursor s mes NOTE To reset the zoom and see the full trace press Full scale 144 User Manual 780000102 19 Chapter 8 Polarization Mode Dispersion Measurement Statistics results Trace shift access in spectrum display To shift the trace horizontally or vertically press the Zoom Shift soft key then use the direction arrow keys to make the required shift Statistics results Table of results Graphics display Statistics can be performed on a series of samples defined by th
106. anual 780000102 19 255 Chapter 16 Technical specifications OTDR Modules Singlemode modules Ultra High Modules Dynamic Long Very Long Range Long Range one a is r distance 9 9 81xx UHD 81xx VLR 81xx LR 81xx MR 81xxVSRE 1310 20 nm 1310 20 nm 1310 20 nm 1383 2 nm 1490 x 15 nm 1310 20 nm 1 1490 15 nm 1310 20 nm Central Wavelength 1550 20 nm 1490 15 nm 1550 20 nm 4550 20 4550 20 1625 10 nm 1550 20nm 1625 10nm 4525 50 nm SEQUI 1625 10 nm 1650 5 nm TUE Class 1M Laser Classes EN Class 1M Class 1M 1310 nm 1310 nm 1310 1383 nm 60825 1 Ed 1 2 Class 1 Class 1 Class 1 Class 1 Class 1 1490 2001 08 1550 1625 1550 1625 1490 1530 d us 1625 1650 nm Laser Classes Class 1 EFDA21CFR 1040 10 40dB 39 dB 36 dB Min IEC Dynamic 42 dB eee BENE 36 dB 28 dB R 2 45 dB 37 dB 37 dB 33 5 dB 265 dB enge 42 dB 38 5 dB 37 dB ad EB 38 dB 38 dB 45 db 43 dB 45 5 dB 44 dB 40 dB A P 32 dB RMS Dynamic Range 50 dB 42 dB 41 dB 40 dB OB 45 5 dB 43 db 41 dB 39 dB 42 dB 42 dB Distance Range up to 380 km up to 380 km upto 380 km up to 380 km up to 260 km Pulse width 10 ns to 20 us 3ns to 20 us 3nsto20us S3nsto20ys 10 ns to10 us Event Dead Zone 45m 0 8 m 0 8 m 0 8 m 2 20 m Attenuation Dead Zone 15m 4m 4m 4m 8m EORUnUGUR ave Our 0 dBm 0 dBm 3 5 dBm 3 5 dBm put Power Modulated wave output power Auto 270 330 3 dBm 3
107. are as follows Purpose and scope on page xxii Assumptions on page xxii Technical assistance on page xxii Recycling Information on page xxiii Conventions on page xxiii User Manual 780000102 19 xxi About this guide Purpose and scope Purpose and scope The purpose of this guide is to help you successfully use the MTS T BERD features and capabilities This guide includes task based instruc tions that describe how to install configure use and troubleshoot the MTS T BERD Additionally this guide provides a complete description of JDSU s warranty services and repair information including terms and conditions of the licensing agreement Assumptions This guide is intended for novice intermediate and experienced users who want to use the MTS T BERD effectively and efficiently We are assuming that you are familiar with basic telecommunication concepts and terminology Technical assistance If you need assistance or have questions related to the use of this product call or e mail JDSU s Technical Assistance Center for customer support Table 1 Technical assistance centers Region Phone Number Americas 866 228 3762 tac jdsu com Telecom Products World Wide 301 353 1550 Europe Africa and 49 0 7121 86 1345 hotline europe jdsu com Mid East Europe 33 0 1 30 81 50 60 support france jdsu com JDSU France Asia and the Pacific 852 2892 0990 Southeast Asia Aus Hong Kong
108. arization controller will change A its setting to adopt to the input signal for a maximum suppression of the test in I OSNR signal to get access to the in band noise mode 1 Startthe measurement by pushing the START STOP button A green on top of the WDM table will show the progress of the measurement When the measurement is finished the green bar disappears and the result is shown in the table A M434 en 2520088 B SEA In Shere i E Adi JAM 4508 h ji Fig 50 Result trace of an I OSNR measurement The table will show the following results Wavelen Freq will be displayed in nm or in THz Spacing channel spacing in THz Level total integrated channel power in dBm User Manual 780000102 19 129 Chapter 7 Optical Spectrum Measurement File Management Noise in band noise power normalized to 0 1nm noise bandwidth OSNR in band OSNR measured Gaussian or no Filter apprixima tion File Management Storing OSA if Auto store has been selected then results will be saved automatically measurements If not or if you want to save the results under another name directory etc 1 Click on FILE key 2 Select Setup with the Setup Explorer key 3 Modify the parameters you want 4 Click on Store Trace The trace is saved with the extension OSA Recalling OSA Once an OSA file has been stored recall it using the Explorer files Select Explorer with the key Setup Explorer Using directions k
109. arization nulling method This mode is recommended for OSNR measurements in ROADM based networks See Testing ROADM networks p 125 WDM OSNR EDFA DFB User Manual Module is used to measure the optical spectrum of an optical signal Standard WDM results are displayed in the results table See Display of the WDM OSA results p 111 Module is used to analyze results from an EDFA EDFA results are displayed in the results table See EDFA results analysis p 120 Module is used to analyze results from a DFB DFB results are displayed in the results table See DFB results analysis p 122 780000102 19 103 Chapter 7 Optical Spectrum Measurement OSA optical spectrum analyzer Setup FPL Module is used to analyze results from a Fabriperot Laser FPL results are displayed in the results table LED Module is used to analyze results from a LED LED results are displayed in the results table Channel Detection parameters To modify these parameters go to the Channel detection line A sub menu then appears proposing the following options Grid The grid serves as a detection reference it must therefore be Regular Manual ITU DWDM ITU CWDM LR4 ER4 100G LR4 ER4 40G or 10x10 100G The choice of grid takes priority over the choice Channel Selection For example it is not possible to choose Channel selection Grid if the option selected for the grid is Without or Conventional Per
110. available Test Auto WDM mode and Test Auto I OSNR mode Test Auto I OSNR Parameter Test Auto WDM only OSA 320 and OSA 500R Acquisition settings Sweep single Sweep range Full ext C Band Averaging acquisition No Not available I OSNR sensitivity Not available Low Fast Resolution Full User Manual 780000102 19 Chapter 7 Optical Spectrum Measurement OSA optical spectrum analyzer Setup Measurements settings Type WDM I OSNR Channel detection permanent Signal threshold Auto Min channel spacing Std 50GHz OSNR OSNR method left amp right Not available Noise Shape Not available Filtered S lt gt N distance Auto Not available Noise acq BW std 0 1 nm SNR Meas Type S N Splitter compensation No Tilt amp Slope Gain No Results screen settings Grid default last value used Alarms No Wavelength range Auto Table notes No Unit nm Show I OSNR trace No Configuration of the file set up see Chapter 14 Filenaming Cable id Fiber Num Test Poin Direction Auto Store Yes Nb Fiber Increment Yes 2 or define your own configuration The parameter to be modified must be selected by means of the direction keys The possible options then appear on the screen make your choice using the direction keys q and gt The various parameters User Manual 780000102 19 proposed are define
111. ayed as the sequence progresses on both Base Units During the measurement the following icon is displayed and the keys on the right of the screen are inactive TESTING FIBER CM Once the measurement has finished the icon turns grey keys are active the Base Unit beeps to signal the end of the measurement User Manual 780000102 19 Sending a mes sage Chapter 11 OFI Module FOX Function Fig 93 Result of a FOX automatic measurement The data displayed in the table can vary according to the acquisiton parameters see Configuration of the FOX automatic measurement page 186 When two Base Units are connected at each end of the fiber via their FOX port they can send messages to each other Two types of messages are available predefined messages 10 User definable messages 4 The message sent by one Base Unit will be displayed on the screen of the other Base Unit To send a message to the distant Base Unit In the Results page push the Send Message key Fig 94 Messages that can be sent to the distant Base Unit User Manual 780000102 19 195 Chapter 11 OFI Module Manual ORL A menu with 10 predefined messages available is displayed Another menu with 4 messages the user can defined is also displayed Select the message to be sent using the direction keys A and w To enter a user message select one of the last 4 messages called User messages and
112. band source 81BBS1A to the PSM module as shown below Coupler Signal input connector on the PSM module PSM module in 8000 Base 81BBS1A in 8000 or 6000 Base Unit Unit Fig 55 Interconnection of 81BBS1A and PSM modules 2 Press the RESULTS hardkey A bargraph informs of the progression status of the module self calibration Wait for completion before continuing 3 On the BBS Results tab select Source On enter safety password 4877 and select PMD AP function using the soft key Fig 56 BBS activation 140 User Manual 780000102 19 Chapter 8 Polarization Mode Dispersion Measurement Performing a High Resolution PMD measurement 4 Goto the PMD Setup page and press the Acq Ref softkey mee NOTE If the 81DISPAP or 81MRDISPAP module with the HR function is used for the first time pressing the SETUP button directly open the Reference Setup page 5 Set the parameter Make Zero to Yes in the configuration menu mmm NOTE When performing a PMD reference acquisition parameters are not taken in account except for averaging 6 Press the button START STOP to start referencing of the broadband source mmmmmS NOTE Performing a reference measurement can take several minutes mini mum 2 min 30 Resulting reference will then be displayed and message ready to measure confirms the reference is valid t 0 0000 Acq Tony OSTA 100 100 me 0015 LA PMD LAP eco Fig 57 Example of a P
113. bands C L Band Displays results along C L bands Manual Displays results between 2 user defined wavelengths The user must then select the lt start gt and lt end gt wave lengths ITUCWDM Displays the ITU T G 694 2 CWDM channels exclu sively ITUDWDM Displays the ITU T G 694 1 DWDM channels exclu sively Channel spacing can be fixed at 25 GHz 50 GHz 100 GHz or 200 GHz Telecom Displays 4 wavelengths 1310 1480 1550 1625 nm Inc Wavelength Defines the spacing between 2 consecutive measurement points displayed on the graph and in the table of results Normalized to km No The AP result is provided in dB only Yes The AP result is also provided in dB km calculated according to fiber length User Manual 780000102 19 153 Chapter 9 Attenuation profile AP Reference Measurement AP Reference Measurement On the measurement examples below only the OBS 5XX is described However it can be replaced by EB1BBSXX Performing the it is recommended to perform a broadband source referencing once a reference ay or each time the fiber patchcord has to be changed mmm NOTE When a reference is performed acquisition parameters are not taken in account To make a reference connect your OBS 5XX or BBS to the test module just like shown on figure below l Fiber patchcord Mating adapter Fiber patchcord OBS 5XX Signal input connector of the 81DISPAP or 81 MRDISPAP module F
114. can be classified in the table in ascending order of frequency or wavelength level or SNR To modify this order 1 Press the Table Contents key then Sort 2 Press Wavel Sort Level Sort or SNR Sort Successive addressing of channels according to the sort type selected On the trace and in the table it is possible to move the cursor from one channel to the next in the selected sort order To do this 1 Use the key Cursor A gt lt Cursor B to choose the cursor A or B to be used on the trace 2 Press the Channel key 3 Press 4 and gt to move the cursor to the following or preceding channel Table notes A note of not more than 40 characters entered by the user may be asso ciated with each channel NOTE Each note is associated with a channel Consequently if the channel is deleted the note will be deleted too NOTE These notes appear in the table only if they have been validated in the SETUP menu on the Table notes line Result screen Similarly this option must be confirmed in order to be able to create a note To enter a note 1 Inthe table select the channel 2 Press the Table Contents key then press Notes 3 Enter the text of the note and confirm its creation User Manual 780000102 19 Chapter 7 Optical Spectrum Measurement Channel filtering 4 Press the Exit key to return to the previous menu if necessary Ges NOTE The table notes are not stored in the measurement results Displaying
115. cated on the first line of the table If the reference is correct disconnect the jumpers at the middle point in order to insert the fiber to be tested User Manual 780000102 19 189 Chapter 11 OFI Module FOX Function If the reference taken is not correct take a new reference If the reference measurements are too weak a warning is displayed Clean all connections to improve the reference measurements the Base Unit The reference is only valid if the jumpers are not disconnected from Taking the reference in a loop back mode mmm NOTE This reference can be made wether the Base Units are on the same site or not 1 Connect the optical output of the source FOX port to the optical input of the power meter by means of a jumper 2 Push the References key Push the Loss Loopback key 4 Push the Go key oem eun su Fig 88 Taking a reference in a loop back mode Once the reference is taken the reference table is updated for the wavelengths available on the local instrument It indicates the type of reference used 190 User Manual 780000102 19 Chapter 11 OFI Module FOX Function The date of the reference as well as the type and serial number of the local instrument are indicated on the first line of the table If the reference is correct disconnect the jumper in order to connect the fiber to be tested If the reference is not correct take a new reference Establishing a Two steps must
116. ch on the source verify if Make reference is still set to Yes then repeat step 5 Check if the LOW BATT red led is lighted If yes then recharge the battery Defective connections Check that the cables are properly con nected and the notches on the connec tors are correctly aligned Saving a reference measurement 1 2 Loading existing reference Click on the FILE button Select Setup When the reference measurement of the broadband source has been completed you can save the result on the hardidsk or disk of the Base Unit 8000 or 6000 Platform Proceed as follow Enter a filename for this reference or click on Default Filename The file has the extension AP but differs from the AP measure ment result files as it only contains the reference points the informa tion on the upper part of the screen are different See Saving Attenuation Profile measurements on page 160 The last reference performed with the Base Unit may be different than the reference used by the current curve In this case the Acquisition Ref menu will be different than the Curve Menu in the Reference setup page Fig 68 156 User Manual 780000102 19 Acquisition Reference and Curve Reference Chapter 9 Attenuation profile Performing a AP measurement You can replace one reference by the other using specific softkeys Load Ref From Trace the reference which has been used for the curve actu
117. ck if same fiber for both units gt becomes lt In progress gt If the master Base Unit successfully detects the other Base Unit at the extremity of the fiber under test the validation symbol is displayed and the process proceeds to Step 3 Otherwise the red cross is dis played and the measurement is stopped Step 3 The master Base Unit performs the acquisition using the first wave length in the list The acquisition time selected on the Setup screen is displayed on each Base Unit either in the Local column or the Remote column depending on which Base Unit is considered When the measurement is terminated the message Completed is displayed The trace is transferred to the other Base Unit Step 4 The slave Base Unit performs the acquisition using the same wave length The message acquisition time selected on the Setup screen is displayed on each Base Unit either in the Local column or the Remote column according to which Base Unit is considered The message Completed is displayed when the measurement is termi nated The trace is transferred to the master Base Unit Step 5 The bi directional measurement is completed NOTE The message Impossible measurement is displayed if the measure ment has not been able to detect the end of the fiber on any of the two traces The measurement must be performed once more with new acquisition parameters or by placing markers manually on the mea surement S
118. cord Signal input onnector6 the 81DISPAP or 81 MRDISPAP module Fig 73 Reference measurement setup 1 Activate the source on the distant Unit and select CD function User Manual 780000102 19 169 Chapter 10 CD measurements using phase shift method CD Reference measurement Fig 74 OBS 5XX module 2 Inthe CD Setup page press the Acq Ref sofkey If 81XXX module with CD function is used for the first time clicking on the SETUP button directly opens the Reference setup page anc e Fig 75 Setup CD Reference Measurement 3 In Make Reference select Yes using the direction keys and gt The line BBS Serial Number turns active 4 Enter a serial number for the broadband source used 5 Press the button START STOP to start the reference of the broad band source A bargraph as this one c is displayed until the end of the acquisition Once the reference is correct the message Valid Reference is displayed in green and related information are displayed in the upper blue part of the screen date and time of reference acquisition Source type serial number 170 User Manual 780000102 19 Chapter 10 CD measurements using phase shift method CD Reference measurement Reference information RNR eI UNS vie v er A ETE ve Wetative Detey ps ve i Reference validity a Ce o am Fig 76 Example of a correct reference with measured point
119. cord as shown in Figure 53 3 Select the PMD function in the Instrument Setup menu and wait for the module self calibration tuning 4 Press the SETUP button to access the PMDTest Setup menu 5 Select the appropriate PMD parameters according to your applica tion as defined earlier in this chapter 6 Press the START STOP button and wait for the results to be displayed User Manual 780000102 19 Chapter 8 Polarization Mode Dispersion Measurement Performing a High Resolution PMD measurement j Fiber under test Optical connector of the 81DISPAP 81MRDISPAP E module OBS 5XX Fig 53 PMD measurement with an ODM plug in Performing a High Resolution PMD measurement The HR PMD measurement requires a polarization scrambler module PSM to be connected to the PMD module and the use of the 81BBS1A broadband source module at the other end of the fiber under test Selecting the 1 Press the SvsTEM button HR PMD 2 On the System page select the HR PMD icon of the PSM module function The PMD icon will then be selected automatically 3 Press eo to validate each function User Manual 780000102 19 139 Chapter 8 Polarization Mode Dispersion Measurement Performing a High Resolution PMD measurement Fig 54 HR PMD and PMD icons selected Performing the it is mandatory to perform a PMD reference prior to the first measure reference ment 1 To perform a reference connect your Broad
120. creen are different See Storing CD measurements on page 176 Loading The last reference acquisition performed with the Base Unit may be existing different than the reference used by the curve one reference in this case the Acquisition Ref menu will be different than the Curve Menu in the Reference setup page ES Fig 77 Acquisition Reference and Curve Reference DS Ware Wes Net You can replace one reference by the other using specific softkeys Load Ref From Trace the reference which has been used for the curve actually open will be used for the next acquisitions Update Trace With Ref apply the reference parameters to the loaded curve Performing a CD Measurement 172 Once the reference measurement is correctly performed 1 Disconnect the mating sadapter and connect each fiber patchcord to the end of the fiber under test 2 Press the SETUP button to access the CD configuration menu 3 Select the appropriate CD test setup according to your application as earlier defined in CD activation and self calibration on page 164 4 Press the START STOP button to see the results within a few seconds 5 Repeat step 1 to 4 for every fiber to be tested User Manual 780000102 19 Chapter 10 CD measurements using phase shift method Performing a CD measurement through amplifiers Q Fiber under test ii 4 Fiber patchcord Signal input connector
121. ctometry measurements Advanced functions in Expert mode Performing splice and reflectance measurements 68 If no result is displayed in the table the distance between the cursors A and B is too small Deleting a slope measurement To delete a particular slope measurement result superimpose the cursors A and B on the slope concerned select Slope after if necessary pressing Advanced and then Manual press e the slope of the specified trace section is deleted There are two methods of carrying out manual measurements of splices on the trace the two cursor method and the five cursor method The five cursor method is the more accurate as it takes into account the difference of level between the slope before the splice and the slope after the splice This method should be used whenever possible If very close events have created a dead zone preventing the measure ment of slope by the five cursor method it is possible to use the two cursor method This considers the difference in level between the cursors Before performing one of these measurements go into the SETUP menu and define the splice detection threshold All is recommended Also confirm display of the results on the trace Results on Trace All or Graphics only Two points method To perform a splice measurement by the two points method display the Results page then 1 Place cursor A exactly on the fault then place cursor B after t
122. d fiber length is too long for the OTDR used etc No fiber connected Under the trace in the blue line are displayed the ORL value of the link the Launch Cable length if defined The Cursor and Zoom keys are available Table To display a summary of the results for 2 traces or more in overlay select Summary Summary with the Table Summary key function Mode of acquisition selected hc m iv Vy1orzoon Fiber 655004 test miner am fosu orn Fig 25 Fault Locator Summary page An additional window is displayed with issue highlighted in case of problem including bend the Summary function analyzes two traces at the same time Go back In Summary mode there is neither access to other functions because N to the Table function to have access to these functions 54 User Manual 780000102 19 Chapter 4 Reflectometry measurements Result page in Expert and Quick Link test mode Result page in Expert and Quick Link test mode Trace display functions Traces display in double acquisition mode Display of events on trace The trace acquired or recalled from a memory is displayed on the Results page see example Figure 27 on page 56 A number of different functions can modify the display of the trace Cursors Zoom Shift Trace Event Trace Table Summary Full Scale etc See page 23 See Overlaying several traces stored in memory on page 27 for overlay of traces When a double acquisitio
123. d 68 5 cursors method 69 movement 24 resolution 254 selection 24 285 Index D Data transfer 233 DFB analysis 6 configuration 123 measurements 123 results 124 Distance specif OTDR measurement 254 E EDFA configuration 120 measurement 120 results 121 Event macro 247 250 Event OTDR 55 57 icons 59 External Keyboard 21 F Fault Locator principle 47 Fibers standards 11 File configuration 218 expedition 227 naming 219 G Ghosts 42 Index of refraction specifications 254 User Manual 780000102 19 L Launch Cable Start 41 Link End connector 41 Link length 65 Link Start connector 41 Lower amp upper thresholds OFI 182 Macro adding interaction 248 calling 246 Default 249 File 247 overwrite 249 Playback 250 recording 246 renaming 248 Standard 246 Mail file expedition 227 OFI FOX function 195 Markers OTDR 61 addition 62 delete 63 hints 62 representation 62 Measurement attenuation specif 254 distance specif 254 principle 1 Memory see File Modules CD specif 263 265 fibers 267 MTAU specif 267 OTDR range 258 PMD specif 262 WDM specif 261 MTAU auto mode 204 configuration 203 manual mode 203 sequence test configuration 205 286 perform 206 OFI Attenuator ext powermeter 181 FOX 186 configuration 186 distant module 194 measurement acquisition 192 results display 194 send message 195 taking ref loss
124. d as default settings in factory User Manual 780000102 19 Chapter 4 Reflectometry measurements Configuring the reflectometry test Measurements You can select the following measurement parameters in the Measure parameters ments field i Those parameters are valid for all traces present on the screen Detection Choice of events to be detected mE NOTE The two following parameters are not available in Fault Locator mode Otdr Connector test this parameter allows to choose if a test of the connector must be performed when acquisition is launched No the OTDR connector is not tested Yes amp Continue the OTDR connector is tested and even if the state is not good the acquisition continues Yes amp Abort the OTDR connector is tested and if the state is bad the acquisition stops this parameter must be configured to Yes a new acquisition This parameter cannot be applied for the current trace open If N must be launched Otdr Connector Measurement this parameter allows to choose if a measurement of the start connector must be performed during the acquisition No in the results table the first line corresponds to the first event detected Yes in the results the first result correpond to the start connector measurement at 0 meter estimated value parameter is modified for the current trace open then the results This parameter can be applied for the current trace open If this N will automa
125. d be connected Attenuation For measurement of the attenuation of power in a complete link or in measurements elements such as sections of fiber connections or optical components a light source and a power meter are required optical link loss This attenuation is usually deduced from the measurement of optical power at two points Laser light Power meter of Source of the the Base Unit Base Unit Reference Link under test fiber Attenuation Aag P1 dBm P2 dBm To perform accurate measurements the following conditions are vital 10 User Manual 780000102 19 Chapter 1 Principles of measurement Standards and 10 for different types of fiber Use one of the light sources of the LTS or a light source which is stable both in time and as a function of temperature Make sure that all connections and fibers and the receiving cell are perfectly clean Use a reference link between the laser source and the test subject If several measurements are to be made under identical light injec tion conditions this reference fiber must not be disconnected during the period while measurements are taking place Insertion loss method 1 The power meter is first connected to the laser source via the refer ence fiber P1 is measured 2 Then the fiber to be tested is inserted between the reference fiber and the power meter P2 is measured The difference between P2 and P1 gives the attenuation of the fiber under test It is
126. d below 99 Chapter 7 Optical Spectrum Measurement OSA optical spectrum analyzer Setup Fig 41 Setup for optical spectrum measurements G 0sA Fig 42 Setup for optical spectrum measurements OSA 110M Acquisition Parameters mmmmmS NOTE With 507XXX series and 81XXX series modules a warning message appears and the signal is cut off when the power of a channel is greater than 10 dBm or when the composite power of the input signal is greater than 20 dBm 100 User Manual 780000102 19 Chapter 7 Optical Spectrum Measurement OSA optical spectrum analyzer Setup NOTE OSA xxx warning message appears when the channel power is greater than 18dBm or the composite power greater than 23dBm Input port This line only appears when the OSA 303 module is used The choices are A acquisition on port A B acquisition on port B A B acquisition on both ports Acquisition band only appears when 81WDMPMD module is used OESCL Acquisition will be performed on full band SCL Acquisition will only be performed on S C and L bands Sweeps Continuous there will be a measurement with refreshment of the trace and real time display of results Single there will be one single measurement and the display of its results Statistics in this mode the number of samples concerned by statistics must be entered next parameter Filtering only appears for OSA modules with channel isolat
127. d to the master unit via the data connection Local remote unit These terms are used in the Process Display page see Process page display with two T BERD 8000 page 84 Each unit is considered Local on its own screen Gees NOTE These terms are to be distinguished from the measurement direction and extremities of the fiber see Fiber Description page 222 Description of the measurement mmEEES NOTE The measurement principle and methods used are described in Prin ciple of bi directional measurement page 4 Thanks to the software option OEO OTDR bi directional measurement can be fully automatic A minimum of two fibers is required Two Base Units equiped with the talkset option and an OTDR plug in are linked at every extremity of the fiber to test at the same time A data connection is established between the two talkset ports of the units via another fiber in order to exchange orders configurations and measurement results me NOTE For automatic bidirectional OTDR testing two units having the talset option and the E80 bidirectional option are rquired 78 User Manual 780000102 19 AN AN Summary of the automatic operation procedure Chapter 6 Bi directional OTDR Description of the measurement Example with 8000 series Fully automatic bi directional acquisitions can not be performed with out a data connection see Data transfer in the user manual of the Base Unit reference 8000M02 for
128. displayed are deleted to leave room for the new acquisitions Measurements can only be made on the active trace and not on overlaid traces To make measurements on a trace in overlay it must first be swapped with the active trace To do this press the Trace key then the 4 and gt keys aS many times as necessary User Manual 780000102 19 Changing the traces position OSA Trace resulting from the difference between two traces OSA Removing a trace Removing the current trace in overlay Removing all the the traces in overlay Quitting the overlay menu Chapter 3 Graphical User Interface Saving when the instrument is shut down Once a trace is displayed in overlay the traces can be adjusted according to the Y axis Y Reset all traces are on the the same level at the intersection with the active cursor Y Shift Each trace is shifted from 5 dB from the other Y Exact the traces displayed are on the same position according to their injection level It is possible to obtain the trace corresponding to the point by point differ ence between the current trace and the trace in overlay if only two traces are displayed simultaneously To do this press the 2 Traces Diff key The screen will then display the two traces in overlay and the trace resulting from the Difference It is possible to remove a trace displayed To do this first select it see previous paragraph then press Remove Current Tr
129. e chromatic dispersion and PMD of optical fibers Activation process 214 To use the BBS function go into the SYSTEM menu and select the BBS icon using the key e9 1 Gointo the SETUP or RESULTS menu the same page is displayed for this plug in to access the BBS settings 2 Press the SOURCE ON key Entrer the password 4877 using the direction keys Qe or by pressing the numerical keyboard with the stylus 4 Press the CONFIRM soft key to validate the password ow M 1480 1640 nm E Password 4877 Valid LGgus Fees Fig 109 Password Validation page The source is on and the icon A is displayed User Manual 780000102 19 Chapter 13 Broadband source BBS Remote interlock connector Configuration with the 81BB2A module cw A1260 1 640 Fig 110 Configuration of the BBS2A 1 Select CD AP PMD or ALL transmission mode to perform the corresponding test using the 81DISPAP or 81MRDISPAP module 2 Ifa CD mode is selected the key Full Band SCL Band is displayed and allow to select transmitted wavelength range Configuration with the 81BB1A module cw 41460 1640 Fig 111 Configuration of the BBS1A 1 Select CD AP PMD or ALL transmission mode to perform the corresponding test using the 81DISPAP or 81MRDISPAP module If the parameter All is selected the dynamic range will be N degraded by 3 dB Remote interlock connector The use of a Remote Interlock system is specified
130. e number of samples and the time between two consecutive samples Wait period Refer to Acquisition parameters on page 134 for parameter setup To display the statistic results press the RESULTS button Current value average value min value max value and standard devi ation Sdev are provided in the table for each of the 4 parameters PMD delay PMD coefficient second order PMD delay and second order PMD coefficient The statistic results are automatically updated with each acquisition When Statistic mode is selected the button Spectrum FFT becomes Spectrum FFT Drift Barchart This button allows therefore to display alternatively Delay drift during the acquisition time L 120000m Acq POG Sireng 44 Aeara A i 000 1 941995 i 70 000 1 19058 AB 11000 029195 Fig 60 Example of drift In Drift mode the cursor can be moved on each measurement by clicking on the key Previous Acq or Next Acq The histogram providing the delay value for each acquisition User Manual 780000102 19 145 Chapter 8 Polarization Mode Dispersion Measurement Statistics results 146 CN sf Fig 61 Example of histogram Information Under the trace at the right hand corner a message indicates the current messages status of the trace or proposes to start next acquisition by clicking on Stop wait Signal acquisition This message indicates that an acquisition is in progress To stop an acquisition w
131. e with OSA traces Swapping overlay traces With one or more traces already displayed to add further traces to the display the number of traces displayed cannot exceed 8 Click on the key Set Reset Ref or Set Reset All Ref to define the selected trace or all traces displayed as reference trace s see Reference Trace function page 71 Press the FILE button and in the Explorer menu select the files of the traces to be added see Multiple selection of files page 235 Press the Load key Press the View Trace s or Load trace config key as the traces are loaded they cease to be highlighted in the list of files When loading is complete the new traces are displayed in overlay with those that were already there NOTE If the number of files selected exceeds the display capacity a mes sage gives warning that loading will be incomplete only the trace or traces selected first will be displayed up to the permitted limit of 8 traces To copy the current trace into the overlay memory proceed as follows Onthe RESULTS page press the Advanced key then Overlay then Set New Trace The current trace is copied into the overlay memory represented in a different color it is automatically offset with respect to the new trace Anew acquisition can then be started NOTE In the case of Multi trace display with multiple wavelength acquisition when the START key is pressed all the traces
132. e E8118LR49 Long Range 41 dB 1625 nm OTDR module with filter E8117RLR Long Range 41 dB 1625 nm OTDR module E8117LR Long Range 41 dB 1550 nm OTDR module E8115LR Long Range 43 dB 1310 nm OTDR module E8114LR Long Range 43 41 42 dB 1310 1550 1650 nm OTDR module E8138LR65 Long Range 42 dB Filtered 1650 nm OTDR module E8118RLR65 Long Range 41 41 dB 1550 1625 nm OTDR module E8129LR Long Range 43 41 dB 1310 1550 nm OTDR module E8126LR Long Range 43 40 41 dB 1310 1490 1550 nm OTDR module E8138LR49 Long Range 43 41 41 dB 1310 1550 1625 nm OTDR module E8136LR Source Option for OTDR singlemode modules Reference Source Option for Singlemode modules E810TDRLS 1 Not available with UHD and SR e plug ins MR modules Reference Medium range 37dB 1625 nm OTDR module E8117MR Medium range 38 dB 1550 nm OTDR module E8115MR Medium range 40 dB 1310 nm OTDR module E8114MR Medium range 38 37dB 1550 1625 nm OTDR module E8129MR Medium range 40 38 dB 1310 1550 nm OTDR module E8126MR Medium range 40 38 37dB 1310 1550 1625 nm OTDR module E8136MR Medium range 40 40 39 dB 1310 1490 1550 nm OTDR module E8138MR49 User Manual 780000102 19 Chapter 17 Options and accessories References of measurement plug ins VSRE modules Reference Low range 26 dB 1550 nm OTDR module E8115VSRE Low range 28 26 dB 1310 1550 nm OTDR module E8126VSRE SRL Singlemode Multimode modules Reference Short Range LAN 25 23 40 38 dB 850 1300 1310 1550 nm OTDR E81
133. e according to the OFI plug in used Results screen Index Of Refraction parameters Preset index 1550 SM Preset Index 1550 SM User from 1 30000 to 1 70000 Corning SMF 28 1 46810 Lucent Truewave 1 47320 SpecTran SM 1 46810 Litespec 1 46700 ATT SM 1 46700 Fitel Furukawa 1 47000 Corning SMF DS 1 47110 Corning SMF LS 1 47000 Corning Leaf 1 46840 E SMF 1 46450 Unit km kfeet miles Alarms No Active used to set alarms User Manual 780000102 19 187 Chapter 11 OFI Module FOX Function File Storage parameters Establishing a 188 reference Loss enter the loss threshold for each wavelength in dB ORL enter an ORL threshold for each wavelength in dB Delay enter a delay time in us Length indicative value changes according to the delay time and the fiber index To change the alarms values use the direction keys 4 and gt or the numeric keypad Filenaming Cable Id Fiber Num Fiber Code Auto Store Yes cannot be modified Fiber Nbr Increment Yes cannot be modified In the FOX function the measurement results are automatically saved the fiber number is automatically incremented To display the fiber to be tested push the START STOP button in the results page of the FOX function see Choosing the fiber to be tested page 193 Before making a power a ORL and or distance measurement with the FOX func
134. e current filenaming rules and can be used to modify them To edit or modify these rules Go to to the Filenaming line Press y to call up the edit menu Move around in the edit screen using the direction keys Select the desired characters and parameters Confirm each parameter or character selected by clicking on e oa fF WO N Select Enter or Cancel to quit the edit screen according to whether the modifications are to be applied or not 34 ale eof ao fa za Jaa cxf ome eme dow z x ele e n m _ com EL w 00 ee tme tm md Fig 115 Editing filenaming parameters The key DEFAULT FILENAME is displayed when the line Filenaming is selected and allows to apply the file default name to the trace opened Example of filenaming File parameters Filenaming rules selected Filename obtained Resolution 16 cm ABC Resolution Fiber Fiber Code ABC16 cmFiber 1 Fiber number 1 certain length the names will be truncated in the display on the Base A file name can consist of up to 40 characters However beyond a AN Unit the end being replaced by 220 User Manual 780000102 19 Name of a file A Auto store File Type Save Mode Chapter 14 File management File configuration menu After an acquisition and as long as the result has not been saved the line below Filenaming gives the name made up in accordance with the filenaming rules If the file has been recalled from a
135. e fiber P1 is measured Then the fiber to be tested is inserted between the reference fiber and the power meter P2 is measured The difference between P2 and P1 gives the attenuation of the fiber under test It is preferable to use the same type of connector at both ends of the fiber being tested to ensure the same connection conditions for measuring P1 and P2 Accuracy of measurements A high degree of accuracy is often required It is then necessary to perform a preliminary calibration without the fiber under test to elim inate the losses due to connections as far as this is possible To do this use the Reference Value function User Manual 780000102 19 179 Chapter 11 OFI Module LTS function For measurements in the laboratory where both ends of the fiber are on the same site the repeatability of attenuation measurements is better than 0 1 dB For measurements in the field where the two ends are on different sites variations from one measurement to another are of the order of 0 2 dB using a relative measurement Connections to the power meter and the source FOX connector Power meter connector Fig 82 Optical connectors The type of optical connector used for the power meter is UPP Universal Push Pull which is compatible with all diameter 2 5 mm connectors FC SC ST DIN E2000 etc mmm NOTE The source connection is the same as the FOX port Configuring the To activate the function LTS
136. e naming with fiber code origin end lambda fiber name and auto store These parame ters are applied on the master Base Unit Performing a bi directional measurement Process The Process page displays the bi directional measurement steps the Display Curve page displays the traces and results and the Summary page displays a summary of the results in a table and the alarms result if alarms have been configured in the Setup page In order to display the Process page make sure you are currently under the OEO OTDR tab and press the key RESULTS The key View Curves View Process allows to change from the Curve page to the Process page and vice versa In order to select and follow the status of a measurement go to the Process page mmm NOTE When a measurement has been started the slave Base Unit automat ically displays the Process page The Process screen is divided in three zones 1 Information zone Representation of the local Base Unit with identification Representation of the distant Base Unit with identification 1 includes the serial numbers of the mainframe and module as well as available wavelengths 82 User Manual 780000102 19 Chapter 6 Bi directional OTDR Performing a bi directional measurement Status of the data connection grayed when the link has been cut or the connection not yet established yellow when the connection is operational Status of the fiber connection this is the sta
137. e the PMD The method used to measure PMD is the Fast Fourier Transform Method FFT From the spectrum the mean period of the amplitude modulation is measured 1 This is standardized by the ANSI TIA EIA FOTP 113 Polarization Mode Disper sion Measurement for Single Mode Optical Fibers by the Fixed Analyzer Method User Manual 780000102 19 Chapter 1 Principles of measurement Principle of measurement of Chromatic Dispersion CD ODM using phase shift method The Fast Fourier Transform Method into a time distribution will give a Gaussian curve and the mean DGD value is determined from this curve for fiber links with strong mode coupling It is not necessary to modify the polarization angle of the analyzer when strong mode coupling is used For weak mode coupling an angle could be selected to get the maximum amplitude of the modulation The instrument should have a higher dynamic range than the link itself A 35 dB dynamic range is usually enough for most of the applications and 45 dB should be used for very long distance networks The measurement range of the PMD should be linked with the transmis sion rate For WDM applications it should be between 0 1 ps to 60 ps so that measurement can be carried out for bit rates between 2 5 and 40 Gbit s The table below indicates the maximum permitted PMD values for various bit rates sis cv enon aD eee E 2 5 40 lt 2 10 10 lt 0 5 40 2 5 lt 0 125 10Gbps Etherne
138. easurement of slope after the marker stops just before the next marker or at the end of the fiber Do not add markers with the Set Event key after a manual measurement as all the results will be recalculated automatically by the instrument User Manual 780000102 19 Deleting markers Modifying types of events Chapter 4 Reflectometry measurements Advanced functions in Expert mode If two markers are too close together they will appear on the trace and the table but no measurement will be carried out on the second marker to obtain results for this marker a manual measurement is necessary f you press the Set Event key when the cursor is very close to a marker the latter will be deleted To delete a marker move the cursor on to the marker and press the Set Event key The marker selected will be deleted and a complete measure ment without this marker will be carried out To delete several markers use the Event key to move from one marker to the other then press the Set Event key as many times as necessary The cursor will be automatically moved on to the successive markers Deletion of markers can cause incorrect measurement results The types of events are detected automatically as a function of their optical signature This can sometimes lead the system astray if reflection from a connector is too strong end of fiber if a splice has a very low insertion loss slope etc Similarly some types of eve
139. eck that the CD Rom door is securely closed A message is displayed to indicate that you need to wait the CD Rom is being burnt A last message appears a few minutes later to let you know that the CD Rom has now been successfully burnt Click on any key to remove the message 10 You may now securely remove the CD Rom User Manual 780000102 19 243 Chapter 14 File management CD Rom burning MTS T BERD 8000 only 244 User Manual 780000102 19 Macros The macro function allows to store series of user actions in order to play them back automatically The macro function is operational only while the Base Unit is used under the context of fiber optic applications meaning used with one of the following application selected OTDR OSA CD PMD AP LTS i Actions in the SYSTEM page will not be recorded A file macro may also be operational with no active modules as long as Standalone results for fiber optics is used and concerned files are fiber optics files The topics discussed in this chapter are as follows Calling the Macro function on page 246 Macro recording on page 246 Default macro on page 249 Macro playback on page 250 Storing a macro on page 251 User Manual 780000102 19 245 Chapter 15 Macros Calling the Macro function Calling the Macro function This function is accessible via the button SCRIPT in the front of the Base Unit 10 various macros may be
140. ed cursor along the trace using the keys lt and gt or select the Event function and move the cursor through the table using the keys A and W User Manual 780000102 19 Fig 28 B gS i vA Chapter 4 Reflectometry measurements Result page in Expert and Quick Link test mode 1216608 422340 1 5175 0 HAE AB 12094310 0 751 ibn n Example of table of results Information provided for each event detected Each event is referenced under the trace by a serial number which is repeated in the first column of the table The table then shows PAVIA an icon symbolizing the type of the event Measurement of the Otdr connector see page 37 Non reflecting attenuation e g splice Event with reflection e g connector Ghost reflection Slope of the fiber when no fault follows the slope End of fiber ORL measurement Event marker when a measurement cannot be carried out If the event to be added is too close to an existing event the icon appears on the trace and the table but no measurement is carried out to obtain the results for this event a manual measurement is necessary User Manual 780000102 19 59 Chapter 4 Reflectometry measurements Result page in Expert and Quick Link test mode Io End of launch cable the attenuation and distances are measured on the basis of the corresponding marker The distance of the event from the beginning of the fiber in metres or kfeet or mile
141. ed perfectly File management Storing OEO Atthe end of a bi directional measurement the user has the possibility measurements t save the origin trace as well as the end trace for each wavelength either in a single OEO file orin two different SOR files 90 User Manual 780000102 19 Chapter 6 Bi directional OTDR Test of a cable Traces may be stored manually or automatically on the master unit They can be stored manually on the slave unit If you had entered Auto Store then the results will be saved automati Cally If not click on FILE to access the OTDR File menu and select the right format Then press the Store Trace key Recalling OEO Recalling a OEO file traces If the OEO software option is available loading a OEO file with the Load key followed by View Trace key will open automatically the OEO OTDR tab in order to display the OEO trace Recalling two SOR files Wether the OEO software option is available or not if the two SOR files corresponding to a bi directional measurement are selected the key Load Bi dir appears The OEO trace is then displayed mmm NOTE If both traces are not compatible not performed using the same wavelength and pulse width a error message is displayed Acquisi tion parameters for these two files are different gt For further information on File management see Chapter 14 File management on page 217 Test of a cable I
142. ee 97 Configuration of the instrument 97 OSA optical spectrum analyzer Setup 98 Acquisition Parameters l l 100 Measurement parameters 220020005 103 Parameters of display and analysis of the results 106 Acquisition reme Eee 110 Trace display functions lleslsse 110 Display of the WDM OSA results 00 111 Table of results oue ESI 114 Channel filtering leen 117 Field of application llle 117 Configuration 22s rb prone e Ped E 117 Using channel filtering 0 2220020055 118 Drift measurement eee 118 EDFA results analysis 000 ee eee eee eee 120 EDFA test configuration 2200220055 120 EDFA measurements 0 0000 e eee eee eee 120 EDFA results esl rr Hes 121 DFB results analysis eese 122 DFB test configuration 2200 0 0055 123 DFB measurements 0 00 e eee eee eee 123 DEB results 1 nes ek inet face oe Boe eee EN 124 Testing ROADM networks 00200 cece eeeee 125 Measurement of I OSNR eee 126 Pre setting the OSA for an in band OSNR measurement in I OSNR Tode re iei nra ei eager y ertudx peus 126 Performing an in band OSNR test in l OSNR mode 129 File Management eee e ee eee eens 130 Storing OSA measurements 0000 esee 130
143. eless stipulated injection conditions Fresnel reflections must be limited at fiber input a high power source laser should be used receiver bandwidth should be chosen to achieve a compromise between pulse rise time and noise level backscatter power should be represented on a logarithmic scale Reflectance is a value with which the coefficient of reflection of a reflecting optical element can be quantified It is defined as the ratio of the power reflected by the element over the incident power These reflections are due to variations in refractive index all along the optical link in certain telecommunications applications If they are not controlled they may degrade the performance of the system by perturbing the operation of the emitting laser especially DFB lasers or may generate interference noise in the receiver by multiple reflections The reflectometer is particularly well suited to the measurement of discrete reflectances on an optical fiber link To calculate the coefficient of reflection it is necessary to measure the total amplitude of the Fresnel reflection generated and then to apply a conversion formula to obtain the reflectance value This formula takes into account the total amplitude of the reflection measured by the reflectometer the pulse width used to measure the amplitude of the reflection in nanoseconds the backscatter coefficient of the fiber used User Manual 780000
144. ement for the following one The different traces appear in the same window and can be managed as traces in overlay see Overlay trace function on page 26 Acquisition in Expert mode In this mode the MTS T BERD 8000 carries out a number of averagings defined as a function of the maximum acquisition time specified in the Acquisition menu and then terminates the acquisition The acquisition is carried out with the parameters previously selected in the Acquisition menu It may be stopped at any time using the START STOP key Configuring the acquisition To configure a manual acquisition of the fiber under test follow the proce dure described below in the SETUP menu see Acquisition parameters on page 33 1 On the Mode line select Expert 2 Select the wavelength on the Laser line 3 Select Manual or Auto on the line Acquisition 4 If Manual has been previously selected on the Pulse line select the required pulse length from the values proposed 5 If Manual has been previously selected select the required Range from the values proposed If Manual has been previously selected select the Resolution On the Acquisition Time line select the duration of acquisition If you wish select Short Acquisition if a first acquisition on a range of 5 km and a small pulse width must be performed before the standard acquisition see Short Acquisition on page 36 User Manual 780000102 19 51 Chapter 4 Reflectometry meas
145. er press the RESULTS button onthe measurement configuration page to change from one tab to the other press the SETUP button User Manual 780000102 19 19 Chapter 3 Graphical User Interface Display screen Soft keys Icons 20 On the file configuration page to change from one tab to the other press the FILE button NOTE There is a tab for each different type of measurement OTDR SM OTDR MM OSA Power Meter The tab of a function is displayed if and only if a plug in corresponding to this type of measurement has been inserted in the instrument or if a file of the type of this measure ment is open If two plug ins of the same measurement type are pres ent then only one plug in is active so only one tab will appear for this measurement To change the active plug in go to the SYSTEM screen and select it there A small icon may appear in the left corner of each tab according to the status of the corresponding module 9E JSM OTDR G4JOEO OTDR lemmgirs The icon signification is the following Noicon the function is used in a read only mode no module or the module has not been selected Gray icon the function has been selected but the corresponding module does not currently perform an acquisition Green icon the function has been selected and the corresponding module currently performs an acquisition The 7 softkeys at the side depend on the current configuration and the
146. er Manual 780000102 19 35 Chapter 4 Reflectometry measurements Configuring the reflectometry test 36 NOTE Whatever is the acquisition mode selected an acquisition in real time mode can be launched maintaining the START STOP button pushed for about 2 seconds Manual Enter the acquisition time wished from 5 s to 5 minutes max Predefined Select one of the acquisition time predefined 10 seconds 20 seconds 30 seconds 1 minute 2 minutes 3 minutes Auto This mode is only available in Expert Mode when Auto configuration is selected Short Acquisition This parameter allows to launch a short acquisition before the stan dard one It is available in Expert mode only With Short Acq a first short acquisition is performed with a range of 5 km and a short pulse width in order to minimize the Dead zone value before the standard one which will maximize the dynamic value Without Short Acq the standard acquisition is directly launched Test Auto The Test Auto key imposes the following parameters Acquisition parameters Laser All Acquisition Auto Acquisition time Auto Saving parameters see Chapter 14 File management on page 217 File naming Fiber Cable Cable Id Fiber Num Lambda direction Increment Fiber number Yes Auto Store yes Factory default settings The Factory Defaults key imposes the parameters for acquisition measurement and display of results define
147. er line that several lasers are selected or select All User Manual 780000102 19 Chapter 4 Reflectometry measurements Results page in Fault Locator mode Start the acquisition by pressing the START STOP button Once the acquisition for the first wavelength is finished or to stop it manually click on Stop Wavelength to stop the measurement for this wavelength and automatically start the measurement for the following one The different traces appear in the same window and can be managed as traces in overlay see Overlay trace function on page 26 Results page in Fault Locator mode The trace acquired or recalled from a memory is displayed on the Results page Once the test is completed the instrument measures the end of fiber distance and display it with the unit chosen The Total Loss is also displayed iuum oe ss 22 740081 d of Fiber 2 01 km Total Loss 2 46 dB Susuowa Silocoorn LIS T Fig 24 Fault Location A number of different functions can modify the display of the trace Cursor A Cursor B see Cursors on page 24 Zoom Shift see Zoom and Shift functions on page 25 Table Summary see Table Summary function on page 54 User Manual 780000102 19 53 Chapter 4 Reflectometry measurements Results page in Fault Locator mode m NOTE If a problem occurs during acquisition two types of message can be displayed on screen Fiber End not foun
148. erm Sellmeier 1260 1640 nm 12 User Manual 780000102 19 Getting started The topics discussed in this chapter are as follows Unpacking the device Precautions on page 14 Installing a plug in in a receptacle and removing it on page 14 Universal connectors and adapters on page 15 User Manual 780000102 19 13 Chapter 2 Getting started Unpacking the device Precautions Unpacking the device Precautions We suggest that you keep the original packing material It is designed for reuse unless it is damaged during shipping Using the original packing material ensures that the device is properly protected during shipping If another packaging is used for returning the equipment for example JDSU cannot give warranty on good protection of the equipment If needed you can obtain appropriate packing materials by contacting JDSU Technical Assistance Center Installing a plug in in a receptacle and removing it A plug in may be inserted into either of the two slots provided for the purpose When a slot is vacant it is closed by means of a cover plate fitted with two captive screws like those on the plug ins Captive screws securing the plug in Fig 8 Rear view of the Base Unit example Inserting a plug in into receptacle The Base Unit must be switched off and if it has a mains power sup N ply the adapter cable must be unplugged 1 Slide the plug in into its slot 14 User
149. erwise results are shown in the table in green When the instrument is switched off results present in the table are saved Results of the power meter nsus Fig 85 Results and commands of the LTS When the LTS function is selected the following softkeys are available on the results page Setasreference Selects the current result as reference value to measure the attenuation of a link This reference is displayed under the measurement result until a new reference value is chosen User Manual 780000102 19 Chapter 11 OFI Module LTS function lt Zero gt Adjustment of the Zero value when the power meter s optical input is closed with a plug lt Keep Result gt Saves the result on the corresponding line of the table lt Clear Table gt Deletes all the results recorded in the table Making a mea The power meter is started up as soon as the LTS function e is acti surement ted in the SETUP menu mmm NOTE Power measurement is automatically updated in consequence The value 60 dB is displayed when the laser is switched off and if the Source output is looped on to the power meter input If the OFI module s source is used the START STOP key must be used to start or stop emission of light Power Connect the light source to be tested to the rear connector see measurement Connections to the power meter and the source page 180 Inthe SETUP menu choose the units dBm dB or Watts P
150. eshold selected in the SETUP menu see Acquisition parameters on page 33 Both results for an event will be displayed if they can be calculated The following table gives some examples of detection of events for different threshold values The MTS T BERD 8000 displays a value if E g Value of the thresholds the attenuation or the reflectance has one of the following values Attenuat dB Reflect dB Attenuation Reflectance 0 05 60 gt 0 05 dB 60 dB 2 1 15 gt 1dB gt 15 dB 6 gt 6 dB 1 Example a value will be displayed at 43 dB 2 Example a value will be displayed at 14 dB but not at 20 dB The reflectance of an event is always measured except when the event causes a saturated Fresnel peak or if it is drowned out by noise In this case the MTS T BERD 8000 displays gt to show that the actual reflec tance exceeds the value displayed For example to detect all the splices on a fiber having attenuation greater than 0 05 dB select the different thresholds of the events to be detected in the menu called by the SETUP key in the Measurements gt Detection window User Manual 780000102 19 57 Chapter 4 Reflectometry measurements Result page in Expert and Quick Link test mode Table of results 58 Relative measurement Relative measurements using the 2 point method can be carried out by means of the Event function in coordination with the two cursors For ex
151. et a power of 6 5 dBm or of 9 5 dBm For all the other modes 270Hz 330Hz 1kHz 2 kHz Auto Twintest select one of the following emitted power 12 5 9 5 6 5 dBm The results page called up by the RESULTS button gives the information relating to the measurement in progress results previously saved and the commands available for measurement and saving The power measured by the power meter is displayed in large charac ters in the units selected in the SETUP menu together with the mode of transmission of the signal measured continuous CW or modulated to a frequency of 270Hz 330Hz 1KHz or 2KHz User Manual 780000102 19 183 Chapter 11 OFI Module LTS function Table of results Commands of the 184 power meter parameters the wavelength of the signal measured the reference level expressed in dB the level of Attenuation Compensation For one and the same fiber the power meter displays a table of 9 results corresponding to the different possible wavelengths The table shows the power measured in dBm the relative power in dB and the reference level in dBm if units dB together with the mode A measurement result is displayed in the table when the Keep Result softkey is pressed The Clear Table softkey orders deletion of all the results displayed in the table If the Alarm function has been activated any result that exceeds the selected thresholds appears in red in the table Oth
152. eter just sets the wavelength range to be displayed as a trace Auto display automatically zooms into the the wavelength range where optical channels are present Full full wavelength range C L Band 1530 1625nm CBand 1530 1565nm Start End manually selectable start end wavelengths Center Span manually selectable center span ext C L Band 1525 1625nm ext C Band 1525 1570nm Zoom Mode for OSA 110M only Parameter to set the display wavelength range 7 The values are then defined in Min SNR 1 Delta of frequency or wavelength 2 Minimum power 3 Maximum power User Manual 780000102 19 109 Chapter 7 Optical Spectrum Measurement Acquisition This parameter just sets the wavelength range to be displayed as a trace Auto display automatically zooms into the wavelength range where optical channels are present Manual full wavelength range or choosen by the zoom function of the result page Table Notes Here the display can be configured and it can be specified whether or not it is possible to enter a note for each channel see Table notes p 116 Select Manual to enter manually a note for each channel in the results table Select ITU Ch to automatically enter the ITUchannel on each channel displayed in the results table Units Here the units of the x axis can be selected Frequency in THz Wavelength in nm Acquisition To start a measurement press
153. example Br Or Tube Ribbon Fiber Max tube Max ribbon User Manual The color code of the fiber is preceded by that of the tube then by that of the ribbon the three being separated by a example Br BI Or See Fiber Nbr Increment on page 222 Shows the maximum number of tubes in the cable for the extremity selected This information influences the automatic coding of the fiber See Fiber Nbr Increment on page 222 Shows the maximum number of ribbons in the cable for the extremity selected This information influences the automatic coding of the fiber See Fiber Nbr Increment on page 222 780000102 19 225 Chapter 14 File management File configuration menu 226 Max fiber NOTE Shows the maximum number of fibers in the cable for the extremity selected This information influences the automatic coding of the fiber See Fiber Nbr Increment on page 222 Certain parameters are not valid in the configuration selected Thus if no tube is selected in Cable Content all the lines relating to the tube concept will be deactivated grayed out in the menu Tube Coding Ribbon Coding Fiber Coding Code Definition The lines Tube Coding Ribbon Coding and Fiber Coding enable selection of the color coding of the tube the ribbon and the fiber from 5 different codes described below TIA USER 1 USER 2 USER 3 and USER 4 The Code Definition line opens a sub menu with which the different colo
154. eys select the directory and then the file to open Click on Load Click on View Tace s or Load Trace Config A O N The selected file is opened For further informations on file management see Chapter 14 File management 130 User Manual 780000102 19 Polarization Mode Dispersion Measurement This chapter describes the different steps in carrying out a PMD measurement with a Base Unit equipped with a a 81PMD 81DISPAP 81MRDISPAP Module The topics discussed in this chapter are as follows Recommended equipment on page 132 PMD Activation and self calibration on page 132 Performing a PMD measurement with a PMD test module on page 137 Performing a PMD measurement with a PMD test module on page 137 Performing a High Resolution PMD measurement on page 139 Display of results on page 143 Statistics results on page 145 File Management on page 147 PMD standards and limits on page 147 Itis assumed that you are familiar with the operation of the Base Unit the OBS 5XX Optical Broadband Source or 81BBSxx BroadBand Source User Manual 780000102 19 131 Chapter 8 Polarization Mode Dispersion Measurement Recommended equipment Recommended equipment To perform a PMD measurement the following equipment is recom mended Base Unit with a module as mentioned above and associated optical connectors OBS 5XX Optical Broadband Source or 81B
155. fiber according to its number or its color code Use the direction keys and to change the number or color code of the fiber to be tested Changing the fiber number involves a modification of the color code and vice versa Before making the measurement check that the reference measure ments are correct see Establishing a reference page 188 Push the START STOP button once more to start the measurement of the selected fiber The results are displayed as the sequence progresses on both Base Units During the measurement the soft keys on the right of the screen are inactive Once the measurement has finished the Base Unit beeps to signal the end of the sequence The beep differs depending on wether the measurement has completed correctly or according to the measurement alarm status User Manual 780000102 19 193 Chapter 11 OFI Module FOX Function Identifying the distant module Displaying results for a FOX automatic measurement 194 Before making a measurement you can check presence of the distant module Once the results page is displayed click on Identify distant The distant module identification is made automatically Distant Module Fig 92 Distant module Identification Data from the distant instrument is displayed The serial number and the operator name on this instrument Check this data before making a measurement or taking a reference The measurement results are displ
156. forming an acquisition in Real Time mode 45 Real time display lille 45 Multi wavelength acquisition 205 47 Acquisition in Fault Locator mode 47 Principle of the Fault Locator mode 47 Performing an acquisition in Fault Locator mode 48 Multi wavelength acquisition lille 49 User Manual 780000102 19 ix Table of Contents Acquisition in Quick Link Test mode 49 Principle of the Quick Link Test mode 49 Performing an acquisition in Quick Link Test mode 49 Multi wavelength acquisition lille 51 Acquisition in Expert mode Lee 51 Configuring the acquisition 2 51 Performing an acquisition in Expert mode 52 Multi wavelength acquisition lille 52 Results page in Fault Locator mode 53 Table Summary function 0 00 54 Result page in Expert and Quick Link test mode 55 Trace display functions iilis 55 Traces display in double acquisition mode 55 Display of events on trace 0 eee eee 55 Trace Event functions 00 0c cece less 57 Criteria for display of anevent 00000 0s 57 Table of results 00 0000 cee ees 58 Summary page 4 ee a i Be i a 60 Advanced functions in Expert mode 61 Automatic measure
157. gain from EDFA expressed in dB NF Noise figure from EDFA expressed in dB Channel allows to move the cursor from one channel to another both in the trace and in the table of results Saving EDFA results Results are not saved in a file Nevertheless both traces may be stored as regular WDM traces To save your files Select Acq In to save the first file Click on FILE select name and Store Trace Click on RESULTS to come back to the previous screen amp OND Proceed the same way for Acq Out Loading EDFA results Results are not saved in a file Nevertheless both traces may be reloaded as regular WDM traces Results will be automatically recalcu lated Select Acq In before loading your first file 2 Click on FILE and Explorer to select your file 3 Load and view your trace The first trace is now loaded for Acq In 4 Select Acq Out before loading the second file and proceed the same way to load the second file Results appear automatically in the table DFB results analysis 122 This feature only applies to instruments OSA XXX DFB results analysis allows to characterize DFB lasers by giving the corresponding SMSR Offset and bandwidth values see the measure ment principles in DFB analysis on page 6 User Manual 780000102 19 DFB test configuration DFB measurements Chapter 7 Optical Spectrum Measurement DFB results analysis To configure the Base Unit in preparation for a DF
158. hannel spacing can be fixed at 25 GHz 50 GHz 100 GHz or 200 GHz Manual Displays results between 2 user defined wavelengths The user must then select the inf wavelength to start with and the sup wavelength to end with Normalized to km No Only Dispersion results of the link are displayed in ps nm Yes In addition to dispersion results dispersion coefficient are calculated according to the fiber length and listed in the table Show Measured Displays the acquisition points on the Delay curve represented by black Points crosses 168 User Manual 780000102 19 Chapter 10 CD measurements using phase shift method CD Reference measurement Yes All the acquisition points are displayed No No acquisition points visible Show Fit Formula Displays the resulting approximation equation and the correlation coeffi cient on the upper left side of the trace Yes Equation is displayed No Equation is not visible CD Reference measurement On the measurement examples below only the OBS 5XX will be described However it can be replaced by E81BBSXX Performing the itis recommended performing a CD referencing once a day or each time reference the fiber patchcord has to be changed mm NOTE When a reference is performed acquisition parameters are not taken in account To perform a reference connect your OBS 5XX or BBSto the test module as shown below Mating adapter A 8 P cima 6 4 Fiber patch
159. hatever the mode is used press the START STOP button Next measurement After each acquisition in the Statistic mode and when Long term has bee set on Period or Manual this message requests that you select Stop Wait The Base Unit then displays Signal Acquisition Ready to start test cycle This message appears after a acquisition cycle is finished when you are in statistic mode Press START STOP to start a new cycle Ready to start Measurement The message is displayed after the completion of an acquisition sample or a Reference measurement Waiting bargraph When Statistic mode is used and Long term is set to Period a bargraph displays the remaining time before the next acquisition User Manual 780000102 19 Chapter 8 Polarization Mode Dispersion Measurement File Management File Management Saving PMD if Auto store is selected results are saved automatically results If not or if you want to store the results under another name directory etc Recalling PMD files 1 2 3 4 Click on the FILE key Select Setup with the key Setup Explorer Modify the file parameters Click on Store Trace The PMD traces are stored with the extension PMD Once a PMD file has been stored it can be recalled using the Explorer A oO N Select Explorer with the key Setup Explorer Using directions keys select the directory and then the file to open Press the Load soft key Press View Trace s or Load Trace Config
160. he splice that you wish to define 2 Press the Advanced key then Manual Measurement then select the function 2 Pt Loss 3 Press The splice marker is placed at the point defined by the first left hand cursor and the result is displayed on the screen If the fault is reflective the reflectance value is also measured and displayed These results are added to the table of results User Manual 780000102 19 Chapter 4 Reflectometry measurements Advanced functions in Expert mode If no result is displayed it is possible that the threshold of attenuation detection is higher than the attenuation that you are trying measure or else you may have selected No or Graphics only on the Results on Trace line NOTE If you try to measure a splice on a slope the measurement is not car ried out and the following error message is displayed 51ope found between two cursors Five points method To carry out a splice measurement by the five points method 1 NOTE If no result is displayed it is possible that the display threshold of the attenuation measurement result is higher than the attenuation that you are trying to measure or else in the SETUP menu you may have selected Results on Trace None or Graphics only NOTE If you try to measure a splice on a slope the measurement is not car ried out and the following error message is displayed S1ope found between two cursors Measure the slope preceding the fault to be mea
161. he unit will now perform measure ments with those markers Otherwise select Free Evts Press START to begin the measurement The line Check if same set up on both units becomes In progress NOTE A warning may occur if the configurations of the two units are different see Warning errors resulting from checking common configurations page 93 The begin launch cable is transferred to the end launch cable and the end launch cable is transferred to the begin launch cable The master Base Unit must indeed know both extremities of the fiber and will send the information to the slave Base Unit The direction of the link is defined by the master Base Unit which transmits the opposite direction to the slave Base Unit In the File configuration each Base Unit points to its own directory Only the master Base Unit may save a measurement Auto storage and File type parameters only concern the master unit and are not com pared or transferred to the slave Base Unit The list of lasers for which a measurement will be performed is set by the master Base Unit If these lasters are not all available on the slave Base Unit the list shall be restricted to the ones that are available When both menus SETUP and FILE are identical the validation symbol a is displayed and the process goes to Step 2 User Manual 780000102 19 85 Chapter 6 Bi directional OTDR Performing a bi directional measurement 86 Step 2 The line lt Che
162. hich various icons indicate the current functions a bar displaying a scaled down representation of the trace showing the zoom zone and the parameters of the measurement on display signature of the measurement the main part of the screen displaying a menu or the page of results tabs enabling the user to switch from one function to another OTDR WDM power meter etc as required At the right hand side of the screen softkeys give access to the various commands Their action depends on the current function and configura tion TTE a ven nen A 0 000 36 168dB B 0 00m 36 168dB A 8 000m 0 000dB lan wap p amp Zoom C Shit 33109 f im L7 Cursor A mCursorB olrace lable Summary Zoom Auto Set Event WIE Fig 11 Example of display of results with OTDR plug in Top status bar The top status bar on the screen shows on the right current date and time and in the form of icons the type of power supply mains or battery and if the power supply is on battery the level of charge see Battery management in chapter 2 from the Base Unit manual 18 User Manual 780000102 19 Mini trace Signature of the measurement Main display zone Tabs Chapter 3 Graphical User Interface Display screen if the Talkset option is present and the telephone is activated the icon 3 ifa remote screen is selected the icon R or he if two users or more are working
163. ications ODM MR Modules Polarization Mode Dispersion E81DISPAP Dynamic Range 58 dB 65 dB PMD Measurement range 0 08 to 130 ps PMD Type B uncertainty gt 0 02 ps 2 PMD PMD Repeatability gt 0 025 ps Measurement Time 16 seconds independant of PMD value 1 With Broadband Source module E81BBS2A unless specified 2 With averaging 3 With handheld Broadband Source OBS550 in High Dynamic mode 4 Up to 60ps in strong mode coupling 5 Weak coupling for 0 1 ps to 60 ps PMD range up to 35 dB Total Loss 6 Traceable to NPL standard 7 Minimum value without averaging Attenuation Profile E81DISPAP Dynamic Range 55 dB 60 dB Measurement Uncertainty 0 006dB km 1310nm 80 km fiber G652 0 003dB km 1550nm 0 004dB km 1625nm Measurement Time 6 seconds 1 With Broadband Source module E81BBS2A unless specified 2 With averaging 3 With handheld Broadband Source OBS550 in High Dynamic mode 4 Minimum value without averaging ODM MR Modules Typical values at 25 C unless otherwise specified Chromatic Dispersion E81MRDISPAP 80km G652 10km G655 Wavelength Acquisition Range 1435 1640 nm Wavelength Display Range 1260 1640 nm Wavelength Uncertainty 0 1 nm Minimum length 1 km Dynamic Range 33 dB User Manual 780000102 19 263 Chapter 16 Technical specifications ODM MR Modules Chromatic Dispersion E81MRDISPAP 80k
164. if the actual distance between the cursors A and B is known enter its value under Section AB to establish the index of the fiber Selection of this distance causes the display of the indices The extreme distance values are given by the index values 1 30000 1 70000 Predefined index Itis possible to choose one of the predefined values given for certain cables The corresponding indices given in the table below are repeated on the screen Wavelength nm 1310 SM 1475 14801510 1550 1625 SM ATT SM 1 46600 1 46700 Corning SMF 28 1 46750 1 46810 Corning SMF DS 1 47180 1 47110 Corning SMF LS 1 47100 1 47000 Corning LEAF 1 46890 1 46840 User Manual 780000102 19 39 Chapter 4 Reflectometry measurements Configuring the reflectometry test Wavelength nm 1310 SM 1475 14801510 1550 1625SM Fitel Furukawa 1 47000 1 47000 Lucent Truewave 1 47380 1 47320 SpecTran SM 1 46750 1 46810 Litespec 1 46600 1 46700 Fig 16 Predefined index values Single Mode Wavelength nm 850 MM 1300 MM Corning 62 5 1 50140 1 49660 Corning 50 1 48970 1 48560 SpecTran 62 5 1 49600 1 49100 Generic 50 1 49000 1 48600 Generic 62 5 1 49000 1 48700 Fig 17 Predefined index values Multi Mode Scatter coefficient not available in Fault Locator mode User Selects for each wavelength the backscatter coefficient of 99 dB to 50 dB by increments of 0
165. ifferent information for the origin and the extremity of the cable If this option is validated it is possible after selecting the extremity to be edited in the Cable Structure menu to modify the values specific to the cable cable name color coding content of the coding for each of these extremities See chapter Cable structure on page 224 To display modify the data specific to the fiber name and code it is necessary to change direction temporarily In the O gt E direction the information on the origin can be edited and in the E gt O direction that on the extremity This parameter allows to enter an identification of the cable using the Edition menu This parameter is available if the previous one Extremities are different is set to No The direction shows if the acquisition has been made from the origin to the extremity O gt E or from the extremity to the origin E gt O Changing direction makes it possible when different extremities are handled to see the parameters of the fiber for the other extremity The name of the origin of the link may be entered here The name of the extremity of the link may be entered here This line opens a sub menu all the parameters of which can be different for each extremity Cable Content Tube Ribbon Fiber Fiber Ribbon Fiber Max Tube Tube Fiber IMA Max Ribbon Max Fiber Tube Coding Ribbon Coding Fiber Coding Code Definition Fig 117 Cable structure men
166. ig 64 Reference measurement setup 1 Activate the source on the distant Unit and select AP function Fig 65 OBS 5XX module 154 User Manual 780000102 19 2 Chapter 9 Attenuation profile AP Reference Measurement In the AP Setup page press the Acq Ref sofkey Fig 66 AP Reference Setup 3 In Make Reference select Yes using the direction keys and The line BBS Serial Number turns active Enter a serial number for the broadband source used Press the button START STOP to start the reference of the broad band source To display the results press the RESULTS button Once the refer ence is correct the message ready to measure appears in the blue bar e ie ee Fe stimm mm Fig 67 Example of a reference for a broadband source A bargraph indicates the source power level Low m High If the reference measurement does not provide a correct result check the following potential causes User Manual 780000102 19 155 Chapter 9 Attenuation profile AP Reference Measurement Error message Possible problem Possible solution Acquisition impossible Hit any key to continue Auto calibration is not completed Wait for the calibration to be terminated Signal level too low Check source and con nections Hit any key to continue The OBS 5XX or other source is not switched on The OBS 5XX or other Source battery is too low Press the ON OFF button to swit
167. imation formula to be used by selecting Auto It is recommended to select the quadratic formula when the 81XXX Module is used with an OBS 5XX a 81BBS1A ora 81BBS2A in SCL mode Amplified link Selet Yes when measuring through optical amplifiers see Performing a CD measurement through amplifiers on page 173 None No alarm management Active Enable the Pass Fail evaluation according to the defined thresholds see below Auto Values Yes The maximum dispersion tolerance is automatically set according to the bit rate information User Manual 780000102 19 167 Chapter 10 CD measurements using phase shift method Configuring the CD test Bit rate info List all relevant data rates Use the direction arrow keys and for selection Auto values No Threshold value is entered manually select the maximum dispersion threshold ps nm from 1 to 10000 ps nm me NOTE Max dispersion threshold is always considered for non normalized dispersion values The Pass Fail indication is provided in the results table Wavelength Range Mode This parameter enables to set the displayed wavelength range Full Displays results along the full available wavelength range S C L Band Displays results along S C L bands C L Band Displays results along C L bands C Band Displays results along C band ITUCWDM Displays the ITU T G694 2 CWDM channels exclusively ITUDWDM Displays the ITU T G694 1 DWDM channels exclusively C
168. imply just bring your attention after or before a specific action is performed To access all these features click on SCRIPT during the learning process of a macro just like if it was done Several soft keys will become avail able Click on the soft key Insert Dialog Box The dialog box editor is displayed Enter the content of your dialog box and press confirm when you are done Click on the soft key Insert Message The Message text editor is displayed Enter the content of your message and press confirm when you are done NOTE Dialog boxes and messages serve different purposes when the macro is played back A message will just appear to bring your attention to a specific point and wait until you are ready to continue A dialog box will give you the choice between continuing to play the macro or aborting it letting you partially play a macro in some cases Click on the soft key Insert Pause This action will automatically make the macro wait for a user action NOTE During playback you can see the icon MII when a pause is encoun tered Press any key to restart the playback Whether you just created a new macro or you wish to modify the name of an existing macro you may edit the name and change it as much as you want 1 Select the macro and select Name on the sub menu 2 Click on gt to open the text editor and type your name 3 Click on Confirm to accept your new name User Manual 780000102 19 The Overwrite Co
169. ing a plug in from a receptacle 15 Universal connectors and adapters 15 Adaptertypes xls eh teen tg eee petendi 15 Switching adapter type 000 00 eee eee eee 16 Cleaning the universal connector 55 16 Chapter 3 Graphical User Interface 17 Display screen eeeeee I 18 Top status bar 2 02 18 Minlsttace x or Sorte nes hee EO be KD he he Ee e SEE 19 Signature of the measurement 255 19 Main display zone lllsilllslllls ellen 19 TADS iui iss eg oS eS PIS D RR AR eee irn 19 SOT KEYS Lao ues esae pene enter le CAR Peto RU Esas 20 ICONS eae aye eee Ln E Ree ds Meee 20 Selection Keysis si risnu seni teens 21 Color ofthe keys 0 0 ccc cece eee 21 Using an external keyboard mouse and screen touch Oplions 2 2 Sete See wien Sore ane ential ae ee REN 21 Virtual control buttons bar 21 Equivalence between external keyboard and Base Unit 22 Editing text using the external keyboard 23 Functions relating to display of a trace 23 Display of the results on the trace 23 CUISOIS c ai eer eL ai eer ere MUR pum pr erm qe 24 Positioning the cursor s ananena 24 Selection of the type of cursor OSA 24 User Manual 780000102 19 viii Table of Contents Zoom and Shift functions sssaaa aaee 25 Zoom funtion 32s rune dee Eu a doe Loe oe 2
170. ing errors of calibration of refractive index of the fiber Attenuation measurement Dual cursor Display resolution 0 001 dB Cursor resolution 0 001 dB Linearity 0 03 dB dB Reflectance measurement Display resolution 0 01 dB Accuracy 2 dB Automatic measurement Automatic measurement of all the elements of the signal Event Distance Event Loss Event Reflectance Section Loss and Atten uation Optical Return Loss Slope measurement by least square averages or 2 point method Display threshold of faults 0 to 5 99 dB in steps of 0 01 dB for event loss 11 to 99 dB in steps of 1 dB for reflectance 0 to 1 99 dB km in steps of 0 001 dB km for section slope Manual Measurement Attenuation between A amp B cursors 1 0 05 dB dB for UHD modules 2 4 dB for UHD and VSRE modules User Manual 780000102 19 Chapter 16 Technical specifications OTDR Modules Reflectance between A amp B cursors ORL between A amp B cursors Event loss using 2 point or 5 point method OTDR Weight approx 500 g 1 1 Ibs measurement Dimensions in mm without front panel w x h x d 120 x 27 x 211 Technical The specifications provided below are valid wathever the number of wavelengths present in the module specifications aY ERE Typical values at 25 C unless otherwise indicated Multimode and Multi Single mode modules 81xxMM 81
171. ion drop option OSA XX1 and OSA 320 Drift for measuring power wavelength and signal to noise ratio over time The number of sweeps and the wait time between the sweeps need to be set NOTE For Drift measurements a Grid needs to be defined and the Channel Detection parameter is set to Grid Sweep Range Select the wavelength numbers or Full parameter to use all wavelength available User Manual 780000102 19 101 Chapter 7 Optical Spectrum Measurement OSA optical spectrum analyzer Setup 102 I OSNR sensitivity only valid for OSA 320 and OSA 500R This parameter defines the resolution of the polarization nulling routine for true in band OSNR measurement Low fast low sensitivity mode for fast measurements recommended for ROADM system testing at data rates up to 12 5Gbps and OSNR values lt 25dB Medium recommended for data rates of 2 40Gbps and OSNR 2 22 dB or for data rates up to 12 5Gbps and OSNR 2 25dB High recommended for data rates of 2 40Gbps and OSNR 2 22 dB Averaging acquisition No 1 sweep Low 4 sweeps Medium 16 sweeps High 32 sweeps This function can reduce the noise level of a value up to 5 dB When the acquisition is averaged a bar graph showing the state of advancement of the averaging is displayed at the bottom right of the screen Resolution not available with OSA 110M Full maximum resolution bandwith of the OSA value depends on specification of OSA XXX
172. ional regu lations Table 5 Safety definitions WARNING Indicates a potentially hazardous situation which if not avoided could result in death or serious injury CAUTION Indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury User Manual 780000102 19 XXV About this guide Conventions xxvi User Manual 780000102 19 Principles of measurement This chapter gives the principles of the measurements made by the reflectometer OTDR plug ins OSA spectrum analyzers WDM tech nology and PMD analyzers Polarization mode dispersion The topics discussed in this chapter are as follows Principle of reflectometry measurements on page 2 Principle of bi directional measurement on page 4 Principle of WDM system testing on page 5 PMD principle on page 7 Principle of measurement of Chromatic Dispersion CD ODM using phase shift method on page 9 Principle of optical power and attenuation measurements OFI on page 10 Standards and I0 for different types of fiber on page 11 User Manual 780000102 19 1 Chapter 1 Principles of measurement Principle of reflectometry measurements Principle of reflectometry measurements Information yielded by the measurement Optical time domain reflectometry consists in injecting a light pulse into one end of the optical fiber to be analyzed and observing at the same end the optical intensi
173. is chapter EA By sae 2903008 Acquisition Laser 1310 nm Pulse toons 10m Range 10km Resotution 5m Delete traces on Start Factory Defaults Index Of Fietraction Scatter Coefficient Launch Cable Start Launch Cable End Alarms None Notes No Results On Trace AN Grid Ho Unit PtUswormn tgoroorn Fig 35 OEO test setup menu Acquisition Laser Acquisition will be performed on all selected parameters wavelengths as long as they are available on the remote OTDR as well If not acquisition will be performed on all wavelengths selected and common to both OTDRs Please see the recommendation on page 78 about using the same type of OTDR Mode Bi directional measurement allows manual and Auto modes only Operation is the same as for OTDR measurement 80 User Manual 780000102 19 Measurement parameters N Results Screen parameters Configuration of files parameters Chapter 6 Bi directional OTDR Configuration of bi directional measurement Launch Cable End This option allows the user to declare and describe the launch cables at the OTDR side of the other end of the fiber No No launch cable on Remote OTDR Evt1 2 3 Declaration of a launch cable on the remote OTDR distance given from selected event 1 2 or 3 Results related to this launch cable are eliminated from the table Distance Use the Edit Number key to enter a distance Min 0 Max 1 10 km 32 81 kfeet 6 22 miles or
174. is performed maintaining the point of intersection between the trace and the selected cursor at the same level scrolling the trace horizontally while following it vertically so that it never goes off the Screen To use this function Select the zoom factor as described above Choose cursor and cursor position User Manual 780000102 19 25 Chapter 3 Graphical User Interface Overlay trace function On the Zoom Shift key select Shift Use the direction keys to shift the trace in the desired direction me NOTE For a Chromatic Dispersion curve click on Config in order to display the zoom and shift functions Zoom Auto OTDR The Zoom Auto key alows to go to an optimized display of the trace Full scale OSA To display the entire trace with no zoom or displacement PMD AP _ either press the Full Scale key Or with Trace selected on the Trace Event key press the eo button Overlay trace function This very useful function enables up to eight traces to be displayed on the screen at once either to compare traces acquired on a number of different fibers in the same cable Orto observe changes over time in traces taken of one and the same fiber orto compare both curves get for each way of propagation in the o Back mode For this purpose the Base Unit possesses an overlay memory which can store the current trace for comparison with further traces to be acquired subsequen
175. isition launched the sequence is automatically updated and continues if the function was not currently used or is immediately stopped otherwise In this last case an error message is displayed indicating that the function has been deselected i If a function is deselected in the SETUP page while the sequence is If you wish to stop a measurement but not the sequence go to the corre sponding measurement tab and click on START STOP 206 User Manual 780000102 19 Chapter 12 Multi Test Access Unit Use of the Fiber Characterization script Use of the Fiber Characterization script mandatory see Using an external keyboard mouse and screen To use the Script function external keyboard and mouse are N touch options on page 21 The Fiber Characterization script is always used with the MTAU module The aim is to automate a test sequence with the different plug in modules and associated test functions available in the MTS T BERD 8000 Connect the To perform a a test sequence with the fiber characterization script you modules to the must connect the available plug in modules to MTAU ports as follow odule Event characterization MTAU OTDR Module E h ization PORT A OFI Module Bi directional IL ORL Port B ODM Module Chromatic Dispersion PMD Attenuation profile Port C BBS Module Broadband Source Port D 1 Connect all test functions to the MTAU module as described 2 Connect the fiber unde
176. isplay the Define wavelengths of each channel wavelengths of wavelengths of channels each channel name the band and each channel each channel name the band and name each channel name each channel name the band and name each channel name the band and name each channel User Manual 780000102 19 107 Chapter 7 Optical Spectrum Measurement OSA optical spectrum analyzer Setup me NOTE The maximum real number of channels for ITU grids depends on the value selected for the first channel and the spacing between the chan nels mmEEES NOTE It is possible to display the grid with the View Grid key A table then appears showing the channel number the name of the channel the reference wavelength and the alarm thresholds for delta F min P max P and min SNR Alarms When Channel Detection is positioned on Grid it is possible to activate an alarm system This system is based on a system of thresholds Any measurement results that exceed these thresholds are displayed in red in the table and the icon 3 appears at the top right of the screen If all the results are within the thresholds no result is in red the icon becomes m To activate the alarm system go to the Alarms line and select Active Thresholds can then be set using the direction keys or numeric keypad to global level or to the level of each channel 1 Global alarms Number of channels Yes No Delta chan
177. ixed or non applicable others editable The type Conventional and the option Without do not give access to the parameters of the Grid sub menu the LR4 ER4 100G LR4 ER4 40G and the 10x10 100G are fix channels plan LR4 ER4 100G LR4 ER4 40G 10x10 100G 229 0 THz 229 8 THz 230 6 THz 231 4 THz 1271 nm 1291 nm 1311 nm 1331 nm 1523 nm 1531 nm 1539 nm 1547 nm 1555 nm 1563 nm 1571 nm 1579 nm 1587 nm 1595 nm The others give access to certain options as shown in the table below Table 1 Grid menu options for each type of grid ITU CWDM ITU DWDM Regular Manual Grid name Editable Editable Editable Editable ITU standard G 694 2 G 692 N A N A Editable from Editable from Editable from N A First ITU 1270 to 1611 1250 05 to 1649 93 1250 to 1650 channel with nm by incre nm by increments nm by incre display in ments of 20 nm corresponding to ments of 0 01 nm the channelspacing nm selected 20 nm Editable from 25 to Editable from 20 N A 200 GHz to 1000 GHz by Channel increments of 1 spacing at each click of 10 if key is held down Number of Editable from 1 Editable from 1 to Editable from 1 Editable from 1 hannel to 18 by incre 256 by increments to 256 by incre to 256 enanhels ments of 1 of 1 ments of 1 Sub menu Sub menu accessi Sub menu Sub menu accessible to ble to display the accessible to accessible to display the wavelengths of display the d
178. k on the files in the function directory selected A table gives the list of the files in the directory showing for each one its name size type and date of creation For files recognized by the Base Unit the types are symbolized by icons 234 User Manual 780000102 19 Format of files Easy file selection Multiple selection of files Chapter 14 File management Explorer Function OSA file OSA extension OTDR file SOR extension OEO file OEO extension PMD file PMD extension CD OTDR file CD extension AP file AP extension LTS file LTS extension ORL file ORL extension EB BAA HRAB CD ODM file OCD extension OTDR files that can be read by the Base Unit are type Bellcore 1 0 1 1 and 2 0 Other files that can be read by the Base Unit are specific to this instru ment To read other formats use JDSU s FiberTrace or FiberCable software The direction keys are used to position the cursor on the file to be selected It is possible to select several files simultaneously to move them delete or copy them on to another medium or to display the corresponding traces in overlay see Display of several traces in overlay on page 239 To do this press e after each selection The files selected appear in video inverse To deselect a file place the cursor on the name of the file and press the key eo again NOTE If a mouse is used click on a file to select it and click again to dese lect
179. ks are the property of their respective companies This guide is a product of JDSU s Technical Information Development Department This manual gives you the main information to install start and use the 8100 Module Series JDSU has established processes in compliance with the Waste Electrical and Electronic Equipment WEEE Directive 2002 96 EC This product should not be disposed of as unsorted municipal waste and should be collected separately and disposed of according to your national regulations In the European Union all equipment purchased from JDSU after 2005 08 13 can be returned for disposal at the end of its useful life JDSU will ensure that all waste equipment returned is reused recycled or disposed of in an environmentally friendly manner and in compliance with all applicable national and international waste legislation It is the responsibility of the equipment owner to return the equipment to JDSU for appropriate disposal If the equipment was imported by a reseller whose name or logo is marked on the equipment then the owner should return the equipment directly to the reseller User Manual 780000102 19 v vi Instructions for returning waste equipment to JDSU can be found in the Environmental section of JDSU s web site at www jdsu com If you have questions concerning disposal of your equipment contact JDSU s WEEE Program Management team at WEEE EMEA jdsu com User Manual 780000102 19 Table of Contents
180. lable place in the list of your 10 macros The macro can not be loaded if no macro position is available User Manual 780000102 19 251 Chapter 15 Macros Storing a macro 252 User Manual 780000102 19 Technical specifications This chapter shows the technical specifications of the modules of the Base Unit and options and accessories available The topics discussed in this chapter are as follows OTDR Modules on page 254 WDM Modules on page 261 PMD Modules on page 262 ODM Modules on page 262 ODM MR Modules on page 263 High Resolution Dispersion test solution on page 265 BBS Modules on page 266 Information on fiber modules 82LFSM2 82LFSM 4 on page 267 MTAU modules on page 267 OFI modules on page 268 Warning on page 269 User Manual 780000102 19 253 Chapter 16 Technical specifications OTDR Modules OTDR Modules OTDR measurements characteristics 254 Distance measurement Dual cursor Distance displayed takes into account the calibration of the refrac tive index of the fiber Refractve Index adjustable from 1 30000 to 1 70000 in steps of 0 00001 Resolution of display 1 cm max Resolution of cursor 1 cm max Sampling resolution distance between measurement points from 4 cm with up to 256 000 acquisition points Accuracy t 1m 10 x distance sampling resolution exclud
181. lash card must be inserted before switching on the instrument It is strongly recommended that this medium should not be withdrawn or reinserted while the instrument is switched on 232 User Manual 780000102 19 Remote Base Unit and data transfer Abbreviations for storage media N Directory edit function Chapter 14 File management Explorer Function During a data transfer with the option Data Talkset the distant Base Unit hard drive connected by the fiber is displayed as a storage media File and directory edition features may all be used in the same manner with this storage media as with the other ones The abbreviations used in the explorer for the different storage media are Abbreviation Storage medium harddisk Hard disk disk Internal flash memory if no hard disk floppy Floppy disk cdrom CD ROM usbflash USB memory stick cflash Compact Flash memory card masterdisk Hard drive from the remote Base Unit which initi ated the connection slavedisk Hard drive from the remote Base Unit which accepted the connection 1 Only with MTS T BERD 8000 Remote hard drives are seen with different names according to which one has initiated the connection Nevertheless possible actions on these disks are all the same There are no master slave relations for data exchange The editing functions are similar to those of other explorers The directo ries are at the top left of
182. layed on the Results page see example on Figure 11 on page 18 Various functions common to many plug ins OTDR OSA etc can be used to modify the display of the trace Cursors Zoom Shift Event Trace Trace Table Full scale etc The role of the direction keys and the confirmation key will depend on the function chosen Each event OTDR measurement or channel WDM measurement detected is represented under the trace by a serial number The results of the measurements can be written on the trace Depending on the options chosen in the SETUP menu on Result Screen Results On Trace it is possible to show on the trace for an OTDR measurement No results or All the results value and position or only the markers showing the position of the events measured User Manual 780000102 19 23 Chapter 3 Graphical User Interface Functions relating to display of a trace 24 Cursors Positioning the cursor Selection of the type of cursor OSA When there is saturation for a reflective event OTDR measurement the maximum value measured is displayed with the sign gt This shows that the actual reflectance is greater than the value shown for example if R gt 29 5 dB is displayed the reflectance could be 18 dB The reflectance of a ghost event OTDR measurement is displayed in brackets on the trace The vertical cursors A and B are used in the Zoom and Shift functions to position or delete markers
183. le is selected in the System page Laser The acquisition will be carried out on the wavelength selected for multiple wavelength modules the possible values depend on the modules All the acquisition will be carried out on all available wavelengths According to the module you are using the laser source mode is select able using the softkey LASER SOURCE at the bottom of the OTDR setup Screen or selecting the icon Source on the System page for more details about this mode see Chapter 5 Source option of the OTDR Modules on page 75 The Laser Source mode is not available with the UHD and SR e N modules When the Laser Source key is available on the Setup screen press the key and select the laser wavelength AcquisitionSelect the kind of acquisition to be performed This parameter is only available in Expert mode Manual The acquisition parameters Pulse Range Resolu tion can be set by user Auto The acquisition parameters Pulse Range Resolu tion are defined by default and cannot be modified The Measurement time will be set to Auto but can be modified 34 User Manual 780000102 19 Chapter 4 Reflectometry measurements Configuring the reflectometry test Pulse This depends on the type of OTDR module This parameter is exclusively configurable in Expert mode gt Manual In the case of a multi wavelength acquisition you can define a pulse for each wavelength a select each wavelength in the
184. led Ifthe Base Unit was equipped with a different module from the current one when the trace was acquired certain configuration parameters cannot be updated A message warns the user of this 238 User Manual 780000102 19 Chapter 14 File management Link Manager Function If several traces are selected the configuration used will be that of the first trace Ifthe number of traces added and the number of traces present is greater than 8 then the last traces added will not all be taken into account The configuration cannot be recalled if the trace was not originally N created by a Base Unit Load Trace Info The OTDR traces can also be loaded without the parameters defined in with OTDR files the screen displayed via the SETUP key only The key LOAD TRACE INFO will then display the OTDR traces recalling exclusively the File information such as the fiber name and number direction extremities etc See Figure 113 on page 218 Display of several Up to 8 traces in the same application OTDR OSA etc can be traces in overlay displayed simultaneously in overlay To obtain a display of multiple traces two methods are possible Select all the files to be loaded at the same time see chapter Multiple selection of files on page 235 Adda trace at the same interval as those already displayed by means of the Add Trace s key Link Manager Function The Link Manager function is available using the
185. led flux mode conditioner embedded in a patchord for 50um EFJEF50CONFCPC multimode fiber in FC PC Encircled flux mode conditioner embedded in a patchord for 50um EFJEF50CONSCPC multimode fiber in SC PC Singlemode Module UHD modules Reference Ultra long distance 1550nm E8158UHD Ultra long distance 1310 1550 nm E8126UHD Ultra long distance 1550 1625 nm E8129UHD Ultra long distance 1310 1550 1625 nm E8136UHD OTDR modules for calibration reports Reference l OTDR plug in for calibration ratos E810TDRCR VLR modules Reference Very Long Range 42 dB 1625 nm OTDR module E8117VLR Very Long Range 42 dB 1625 nm OTDR module with filter E8117RVLR Very Long Range 42 dB 1490 nm OTDR module E8118VLR49 Very Long Range 43 dB 1550 nm OTDR module E8115VLR Very Long Range 44 dB 1383 nm OTDR module E8118VLR38 Very Long Range 45 dB 1310 nm OTDR module E8114VLR 272 User Manual 780000102 19 Chapter 17 Options and accessories References of measurement plug ins VLR modules Reference Very Long Range 43 42 dB 1550 1625 nm OTDR module E8129VLR Very Long Range 45 43 dB 1310 1550 nm OTDR module E8126VLR Very Long Range 45 43 42 dB 1310 1550 1625 nm OTDR module E8136VLR Very Long Range 45 42 43 dB 1310 1490 1550 nm OTDR module E8138VLR49 Very Long Range 45 44 43 42 dB 1310 1383 1550 1625 nm OTDR E8148VLR38 module LR modules Reference Long Range 40 dB 1490 nm OTDR modul
186. m G652 10km G655 Zero dispersion wavelength uncertainty n a 4 5 nm Zero dispersion wavelength repeatability n a 0 4 nm Dispersion Uncertainty 34 Dispersion Repeatability 2 3 0 06 ps nm km 0 02 0 3 ps nm km ps nm km Measurement Time From 10s to 30s 1 With Broadband Source wavelength type OBS500 1460 1625 nm 2 Repeatibility refers to the typical one sigma standard deviation value obtained for system cycling over 20 measurements 3 1530 1570nm band 4 Excluding reference fiber uncertainties Polarization Mode Dispersion E81MRDISPAP Dynamic Range 45 dB PMD Measurement range PMD Type B uncertainty 5 0 0 08 to 130 ps 02 ps 2 PMD PMD Repeatability 9 0 025 ps Measurement Time 8 seconds independant of PMD value With averaging Up to 60ps in strong mode coupling Traceable to NPL standard Minimum value without averaging OaRWN Attenuation Profile EB81MRDISPAP Dynamic Range With Broadband Source wavelength type OBS500 1460 1625 nm Weak coupling for 0 1 ps to 60 ps PMD range up to 35 dB Total Loss 45 dB Wavelength Uncertainty 0 1 nm Measurement uncertainty 0 003dB km 1550nm 0 004dB km 1625nm Measurement Time 3 seconds 1 With Broadband Source wavelength type OBS500 1460 1625 nm 2 Measured with 80km G 652 fiber 264 User Manual 7800001
187. macro as default It is possible to set one macro as default This is very useful if for example you wish to perform one macro several times in a row Double clicking on the button SCRIPT will automatically play the default macro Select Default Macro and choose in the sub menu which macro you wish to set as default As an alternative you may also select a macro and press the soft key Set as default User Manual 780000102 19 249 Chapter 15 Macros Macro playback 123 cd11 Empty Empty Empty Empty Empty Empty Empty Empty Leam Macro 2 is set as default Storr oet A5 Defaut SCUONOWABRUYN Alternatively set any other d I Hemovt as default using this button Fig 129 Default button Macro playback To play the default macro you may directly double click on SCRIPT To play another macro go to the macro screen Click on SCRIPT once and select the macro you wish to play Then press the soft key Play During all the play back of the macro you can see the icon M gt atthe top of the screen me NOTE This icon changes to Mii when the playback is suspended by a pause event waiting for the user to restart the process see Inserting a pause page 248 All actions recorded in your macro are now performed The speed of the playback is not the same as the speed of the record ing All actions except for acquisitions will appear faster
188. macro aser Sa ee eel tke sae i 247 Adding interaction to your macro 248 Inserting a dialog box 00 002 eee eee 248 Inserting a message 0 0c e eee eee 248 Inserting a pause llli 248 Renaming a macro 6 eee 248 The Overwrite Config setting 249 Replacing a macro 1 ee 249 Removing a macro lsslee eee 249 Default macro 2 2 20 e a e aaa a a ea E aaa A Saa 249 How to use the default macro 5 249 How to set a macro as default nananana anaana 249 Macro playback 2 2 I Iles 250 Storing a macro moles EIL 251 Chapter 16 Technical specifications 253 OTDR Modules 200 cece eee eee eee 254 OTDR measurements characteristics 254 OTDR measurement 000 2c cece eee 255 Technical specifications 220000 20 eee 255 Distance Ranges lt l sec orada cece eee tees 258 WDM Modules 00 20ce cece eee eee 261 Typical specifications 000 0c eee eee 261 Dimensions and weight 0 eee eee eee 261 PMD Modules sees 262 xviii User Manual 780000102 19 Table of Contents ODM Modules 0e cece cece e eee RI 262 ODM MR Modules een 263 High Resolution Dispersion test solution 265 BBS Modules 000 e eee eee eee eens 266 Information on fiber modules 82LFSM2 82LFSM4 267 MTI
189. manent Automatic detection of the channel on each acquisition In this mode the channels are always detected without making a reference measurement mmm NOTE At the end of an acquisition in permanent mode it is possible to cre ate a grid on the basis of the channels detected To do this press the key Adopt Grid in the SETUP menu The new Grid can be shown as table by pressing View Grid in the Setup menu Signal threshold Threshold of detection of channels see Channel detection threshold on page 112 Auto the threshold is determined automatically Manual from 79 9 to 10 dBm OSA 20 dBm Use direction keys or Edit Number to modify values Min 79 9 dBm Max 10 0 dBm OSA 20 0 dBm 1 Attention all modification of these parameters has immediate repercussions on the trace and entails the loss of the measurement statistics 104 User Manual 780000102 19 Chapter 7 Optical Spectrum Measurement OSA optical spectrum analyzer Setup NOTE Modification of the parameters Channel detection and Signal threshold will only modify the results if the WDM module present is the one that was used for the acquisition Min Channel spacing only available in OSA xxx Defines the minimum spacing of two adjacent optical channels in the system This parameter is also used to set the range for integration to measure the accurate total signal power of an optical channel see table contents page 114 The window f
190. may be required to adjust the acqusition band to a short wavelength range Display of CD results Once the acquisition is completed the result curve is automatically displayed The Delay curve is always displayed first Fit Formula Alarm Measured sag points Nerwatirnd Platos Owley pate Normalize fl to km Fig 79 Delay Curve The information provided with the delay curve may be different depending on to the parameters settings In the Figure 79 the following parameters have been configured Alarms Active within the threshold defined Normalized to km Yes Show Measured Points Yes Show Fit Formula Yes mes NOTE If the parameter Normalized to km is set to No the result table will not display the Dispersion Coef ps nm km values 174 User Manual 780000102 19 Chapter 10 CD measurements using phase shift method Display of CD results Functions Delay Dispersion Slope available Once the delay curve is displayed you can change to the Dispersion then the Slope Curve using the Delay Dispersion Slope key Fig 80 Example of the Slope display Trace Table Enables to display either the trace only with one CD result linked to the cursor position on the trace the table only split screen with both trace and table The results table displays the following values for each wavelength Wavelength depending on the range and increment defined in the Setup
191. memory the line below Filenaming shows its name irrespective of whether it respects the current filenaming rules This name can then be modified by calling up the edit menu using the button gt If a modification is then made to the filenaming rules the file name will not be modified To return to a name made up in accordance with the filenaming rules simply delete the existing name Editing the name enables the trace to be saved in a new file with a new name but it cannot rename the existing file this function is pos sible in the Explorer menu see Storage media on page 230 Thus the new name will not be taken into account until the trace is saved again If this option is validated the trace or traces resulting from each acquisi tion are automatically saved according to the filenaming rules OTDR files Wheter one or several OTDR traces are displayed you can select four types of method for storing traces Single sor each trace will be saved with the sor extension Single sor Txt each trace will be saved with the sor extension and a txt file will be generated for each one Example if 3 traces are displayed in overlay and File type is set on Single sor then 3 files with the extension sor will be saved Multi msor all the traces opened in overlay will be saved in one single file with the msor extension Multi msor txt all the traces opened in overlay will be saved in one single file with
192. ment For example the references for an ORL automatic measurement are only available for the FOX function a new reference must be redone for an ORL manual measurement i Establishing references is only valid for a specific module or function Moreover the Manual ORL references made with the Base Unit are not valid with an OFI module mmm NOTE As ORL manual is an option establishing a reference for this mea surement is not automatically available with the OFI module Measurement The page displays acquisition The results screen with the wavelength and the ORL references established The table where are saved the ORL measurements Making the Before making the measurement check that the reference measure measurement ments are correct see Establishing a reference for an ORL manual measurement page 197 Push the START STOP key to start the measurement User Manual 780000102 19 197 Chapter 11 OFI Module File Management Display Of To display the fiber measurement page push the RESULTS key results for an For each wavelength push the key Keep Result to display the result in ORL manual the table measurement The Clear Table softkey orders deletion of all the results displayed in the table If the Alarm function has been activated any result that exceeds the selected thresholds appears in red in the table w er 2444 A Fewer Lmutted 704 dim fero O Fig 96 Results fo
193. ment and detection 61 Addition of markers 00000 00 eens 62 Representation of the markers llus 62 Hints on the positioning of markers 005 62 Deleting markers 0 00000 e eee eee eee 63 Modifying types of events 0 0 00 cece eee ee 63 Table notes rici ER ee Shee evade aed 64 Modifying Link Length 0 00 e ee eee eee 65 Manual measurements liliis usn 66 Measurements of slope 0 0000 ee nee 66 Performing splice and reflectance measurements 68 Manual measurement of ORL 0000 005 69 Memorization of the position of events 70 Reference Trace function esses 71 Using the reference trace function in the Result page 71 Using the reference trace function in the explorer 72 File Management eleeeeeeeeeeee 73 Storing OTDR measurements lsus 73 Recalling OTDR files 00 2000020000 73 User Manual 780000102 19 x Table of Contents Chapter 5 Source option of the OTDR Modules 75 Source Option 234 aii Seen 76 Activating the Source fonction 0 76 Configuring and displaying the parameters of the source 76 Chapter 6 Bi directional OTDR 77 Definition of terms used lesse 78 Description of the measurement 78 Summary of the automatic operation procedure
194. menu Delay Total dispersion Dispersion Coefficient if Normalized to km is set to Yes in the Setup menu If not this column is empty Slope The blue line at the top of the table displays the following information The Bit Rate Info used for the Pass Fail indication L0 zero dispersion wavelength So Slope at LO User Manual 780000102 19 175 Chapter 10 CD measurements using phase shift method File Management Wavelength To move the cursor from one wavelength to the next one press the Wavelength key and use the arrow keys A and W or 4 and gt The cursor will move both on the trace and in the table yellow highlight File Management Storing CD if Auto store was selected then the results are saved automatically measurements If not or if you want to store the results under another name directory etc Press FILE key Select Setup with the key Setup Explorer Fiber Info Modify the parameters kOoOnD Press Store Trace softkey The Chromatic Dispersion results are stored with the extension ocd The Reference measurement and the CD measurement files have both the extension ocd but can be differentiated by the information displayed in the File signature on upper part of the screen Reference File Signature ret pqs bbs10 full r L 50 620km Fit Sel 11 pq bbs10 S0kma T EL 0 4 Ai 1505 B66nim 886 8 Fig 81 File Signature for Reference and
195. metre feet Colors RGB When overlaying several traces see Overlay trace function on page 26 you can change each trace color Active curve allows to change the active curve color Curve 1 to 8 allows to change the selected curve color from trace 1 to 8 mmmEEES NOTE To get the default color for all traces click on Colors Default When you change the trace color the new color is displayed at the right side of its value Traffic Detection and connection quality indicator i raffic on the fiber under test can be detected and reported if the function Traffic Traffic on the fiber und be d d and dif the f Detection TP Traffic Detection has been selected on the System page If the fiber connected to the OTDR module is active a message mdi cating a signal in the fiber under test is displayed Push any key to continue Press the START STOP key to begin the measurement A message indi cates there is traffic on the fiber and asks you if you wish to continue or not f you click on NO the measurement is not launched f you click on YES the measurement is performed despite the traffic mm NOTE If the measurement is validated despite the traffic key YES the next measurement will be automatically performed even if traffic is still detected on fiber If the measurement is cancelled key NO and the START STOP pushed another time the box asking if you wish to continue or not is displayed
196. n dBc Mode off Mode Offset expressed in nm BW level Calculated bandwidth expressed in nm according to the bandwidth level expressed in dBc defined in the setup menu When the Channel key is selected use the arrow keys and gt to move the cursor from one DFB pick to another both in the trace and in the table of results Saving DFB results DFB Results are not saved in a file Nevertheless the trace may be stored as a regular WDM trace To save your files Click on FILE select name and Store Trace Click on RESULTS to come back to the previous screen Loading DFB results Results are not saved in a file Nevertheless the trace may be reloaded as a regular WDM trace Make sure Type parameter is set on DFB in the Setup menu to recalculate DFB results Results appear automatically in the table 1 In case several DFB lasers are characterized at the same time 124 User Manual 780000102 19 Chapter 7 Optical Spectrum Measurement Testing ROADM networks Testing ROADM networks In ROADM networks each channel may traverse different routes optical amplifiers and add drop filters resulting in different OSNR for each channel Conventional OSA measurements are unreliable as they indi cate OSNR values that are too high up to 10dB above the true OSNR Using the in band OSNR method I OSNR of OSA 320 or 500R will provide the true OSNR value in ROADM based networks Fig 48 R
197. n expected OSNR 204B for 10G systems at channel spacing of 50GHz and higher and for systems running at 40GBps at channel spacing of 100GHz or higher Medium mode 5min measurement time Polarization nulling will be performed at about 3 times more measurement points than fast mode gt to be used when expected OSNR is in the range of 20 25dB for 10G systems at channel spacing of 50GHz and higher and for systems running at 40GBps at channel spacing of 100GHz or higher High mode 11min measurement time Polarization nulling will be performed at about 3 times more points than in medium mode gt to be used when expected OSNR is gt 25dB and for all systems running at 40 100GBps at channel spacing of 50GHz User Manual 780000102 19 127 Chapter 7 Optical Spectrum Measurement Measurement of OSNR Manual Settings Min Channel Spacing Min channel spacing needs to be set according to the minimum present channel spacing in a system mmEEES NOTE The preset min ch spacing is 50GHz which works for most of the systems nevertheless the operator needs to enter the effective mini mum system channel spacing of the WDM system This is important for a correct approximation of the noise distribution inside the trans mission band of the WDM channels Mara Example 1 only every second channel is loaded system looks like 100GHz ch spacing It might be that the system has a visible channel spacing of 100GHz but the min channel sp
198. n has been performed i e a short acquisition preceeding a standard one see Short Acquisition on page 36 two traces are displayed in the same window hSJswormn Ecorooron a x al f _ enn 0 000dB dd lem End of the short acquisition in blue whereas the stan dard one continues in green Fig 26 Traces display in double acquisition mode The short trace is the one resulting from the short acquisition and stops while the standard one continues until the end of measurement Each event detected is referenced under the trace by a serial number NOTE In Expert mode to display the results on the trace make sure that the option selected in Results on Trace is All in the menu SETUP User Manual 780000102 19 55 Chapter 4 Reflectometry measurements Result page in Expert and Quick Link test mode mee NOTE At the end of an acquisition a beep is emitted in case of alarm The reflectometry trace is displayed with a dotted vertical line set on the end of launch cable o if the Launch Cable is defined in the SETUP menu and a dotted vertical line on the end of fiber In expert mode only the results of the measurements of attenuation reflectance and slope can be marked on the trace Depending on the choice made in the SETUP menu on Result Screen Results on Trace it is possible to show on the trace No results All results value and position oronly the markers showing the
199. n order to test a full cable it is first necessary to make a OEO reference trace where all fiber events have been marked on both origin and end traces This trace may be obtained by requesting an auto measurement after which markers may be added or by performing a manual measure ment The next step consists in memorizing all markers by selecting Lock Evts in the Process page User Manual 780000102 19 91 Chapter 6 Bi directional OTDR Troubleshooting NOTE If the auto mode was set for the referencing it is recommended to change to manual mode for the next fibers This will ensure that setup parameters used for all the fibers will be the same than those used for the reference trace Finally a bi directional automatic measurement is performed for each fiber Results are stored in either one OEO file or two SOR files Troubleshooting Warning errors after pressing the key START 92 Error message Possible problem Possible solution No data link Acti vate connection before START No data connec tion Go back to System page to establish a connection No tab OEO OTDR on remote 8000 Unit No software option OEO OTDR on remote Base Unit Bi directional mea surement impossible if no software option on remote Base Unit Remote 8000 Unit not ready OTDR resource has not been selected Go back to the Sys tem page on the remote 8000 Unit to select the OTDR func tion
200. nables to get a power level indication at the start of an acquisisition only with 81DISPAP or 81MRDISPAP modules No the received power is not indicated before starting the measurement acquisition Yes the received power is indicated at the beginning of measurement NOTE If Yes is selected the acquisition stops if not enough power is received These parameters provide the relevant information related to the Broad band source BBS referencing These parameters cannot be modified as they are automatically gener ated after a reference measurement see Performing the reference on page 154 Known Length A know fiber length enables to calculate and display the attenuation profile values in dB km in the table see Figure 69 on page 158 No If you do not know the fiber length select No Yes If you know the fiber length select Yes User Manual 780000102 19 Results Screen Chapter 9 Attenuation profile AP Activation and self calibration Fiber length If Yes has been selected on the previous line click on Edit number to use the numeric keypad or use the direction keys to modify the fiber length Min 0 100 km Max 300 km Unit Select the distance unit km kfeet miles Wavelength Range It enables to configure the range of wavelengths to be displayed on the graph and in the table of results Full Displays results along the full available wavelength range S C L Band Displays results along S C L
201. nagement on page 73 User Manual 780000102 19 31 Chapter 4 Reflectometry measurements Selecting the function Selecting the function Press the SYSTEM button If the instrument is equipped with several plug ins or if the sole module performs several functions use the direction keys and ff to select the function the icon under the mouse pointer is surrounded with a green frame select the function by pressing 9 the icon turns orangy yellow In the case a Singlemode Multimode SRL Module is used two icons can be selected on the System Page i for singlemode use or 99 for multimode use d Fig 14 Example of SYSTEM Page with OTDR SRL Module Configuring the reflectometry test To call up the test configuration window press the SETUP button Dialog boxes on one and the same screen enable selection of measure ment parameters and display of results and fiber parameters 1 if an OTDR module is installed 32 User Manual 780000102 19 Chapter 4 Reflectometry measurements Configuring the reflectometry test an 017102009 am nc Expert Ws Test Anto Factory Default s index Of Refraction Scatter Coefficient Launch Cable Notes Nesults On Trace an Gris No Unit ke Colors Laver Source hEQsmoton td rae B Fig 15 OTDR SETUP screen In these windows the parameter selected is in video inverse Select this parameter by means of the direction keys W
202. ncerns the origin If the direction is E gt O it concerns the extremity NOTE The information entered in the Fiber information window concerns the editing and or modifications of the cable and fiber parameters When a trace is recalled without recalling its configuration the parameters of this trace will be present only in its signature The Fiber Id menu consists of an alphanumerical part entered by means of the edit menu followed by the fiber number This number is automati cally incremented or decremented as a function of the fiber code The color code corresponds either to the fiber number or to a color code according to the choice made in Cable structure Color Coding If a color code is selected it can consist of the codes for the tube the ribbon and the fiber itself Its composition is defined in Cable Structure Cable Content In Fiber Nbr Increment mode the fiber code is automatically incre mented at each new file save User Manual 780000102 19 Chapter 14 File management File configuration menu Incrementation is done as a function of the max number of fibers tubes and ribbons defined in Cable Structure Max Tubes Max Ribbon Max Fibers the composition of the color code always incrementing first the fiber number then the ribbon number then if applicable the tube number the choices made for each color code in Cable Structure Tube Coding Ribbon Coding Fiber Coding and in Code Deti
203. nel power No or threshold modifiable from 0 1 to 60 dB Delta OSNR No or threshold modifiable from 0 1 to 60 dB Composite power 3 No or threshold modifiable from 59 9 dBm to 20 dBm 2 Channel alarms Max channel offset No Freq Wavelen Min channel power Yes No Max channel power Yes No Min OSNR Yes No 1 Max acceptable variation between max power and min power on all channels 2 Max acceptable variation between max SNR and min SNR on all channels 3 Maximum composite power 4 Wavelength drift Selection of the alarm on the basis of the value of delta F 5 The values are then defined in Min P 6 The values are then defined in Max P 108 User Manual 780000102 19 Chapter 7 Optical Spectrum Measurement OSA optical spectrum analyzer Setup Channel Number From 001 to the max number of channels Channel value Display of the wavelength of the channel number selected Delta F Delta WL From 0 to 2 THz 2 THz is the default value or from 0 to 8 nm The unit depends on the value of the parameter Max channel offset P Min From 80 dBm to 9 9 dBm below max threshold PMax From 79 9 dBm to 10 dBm above min threshold SNR From 0 to 50 dB Wavelength range not available for OSA 110M use Zoom Mode instead Parameter to set the display wavelength range NOTE The OSA xxx modules always perform a measurement scan over the selected sweep range This param
204. nfig setting N Replacing a macro Removing a macro Chapter 15 Macros Default macro Both your actions and the actual configuration are saved when you create a new macro So when you play a macro back you have the choice between 1 Playing all actions and keeping the actual configuration Your actions are fairly independent of the configuration and you don t wish to modify the current configuration set Overwrite Config on No 2 Playing all actions and restoring the original configuration Your actions are very dependant of the configuration for example in case you need to do some measurements where you wish to keep all the acquisition parameters the same set Overwrite Config on Yes This setting will also allow to make sure all necessary modules are selected in the SYSTEM page before the macro is started It is strongly recommended to use the second method where all con figuration is restored before playing the macro Only experienced users might decide to do otherwise for different reasons Select an existing macro and click on the soft key Learn A message will be displayed asking you if you really wish to overwrite the macro Click Yes if you wish to continue Select an existing macro and click on the soft key Remove A message will be displayed asking you if you really wish to delete the selected macro Click Yes if you wish to continue Default macro How to use the default macro How to set a
205. nk Ae proud Er description dut s Full mds tr DAL Cem Sen ee banners Mua peo 1 i l md atenen Urt Cersetet atom VRI SOTI EN Fig 102 Test Sequence configuration 208 User Manual 780000102 19 Chapter 12 Multi Test Access Unit Use of the Fiber Characterization script 6 The contents of the summary table which is always available will depend on the available test functions the user will be able to define the fields to display by using the key Select results to display T Len it er ead JO se 1 Fig 103 Summary table contents 7 Press START and define from which end the test will start Manat aetectien _ Meth P Coble Farting rmi oma a bv e dewithenna eser J i Hae sc o qom MM Fa e 05i o Origin Location e tnt Locaten nte T BBS hopes mde CD De you ment to stan INEO i C0 men fnm yr ta T i LX Tiber 8 Low DALOM EM END A aaua l E iz Gres Fen Oarecternaton VOAL 2 TT0007 Fig 104 Start the test sequence 8 Inspect before you connect the fiber to test Inspect Clean Inspect again 9 Connect the fiber and press the SCRIPT button when inspection is done 10 Validate each start of measurement OTRD IL ORL PMD AP CD User Manual 780000102 19 209 Chapter 12 Multi Test Access Unit Use of the Fiber Characterization script Total test time 3 minutes per fiber 11 In the following screen click on Yes to move to next fiber to test Munra
206. nnel filtering on page 117 Drift measurement on page 118 EDFA results analysis on page 1201 DFBresults analysis on page 122 Testing ROADM networks on page 125 Measurement of I OSNR on page 126 File Management on page 130 1 Erbium Doped Fiber Amplifier User Manual 780000102 19 Chapter 7 Optical Spectrum Measurement Laser safety Laser safety This device OSA 110M contains a Class 1 Laser product according to DIN EN 60825 1 Please take notice of following instructions When the system or device is switched on never look directly into the in and output or into a connected optical fiber Please heed the normal precautions for working with lasers and consider local regulations Transportation transportation with improper packaging Modules without a T BERD MTS should be shipped only in the original packaging For shipping of a MTS 6000 containing an OSA use either the original packaging with the black rubber foam or the transportation case referenced EGOHCASE OSA For shipping of a MTS 8000 containing an OSA use either the original packaging with the black rubber foam or the transportation case referenced EBOHCASE OSA Using the original packing material ensures that the device is properly protected during shipping Otherwise JDSU cannot give warranty on modules good protection i The OSA 110M 150 18x 500 500R can be damaged during If you need a new packaging plea
207. nsion ats Once an AP file is stored use the Explorer to reload it 1 Select Explorer with the key Setup Explorer User Manual 780000102 19 Chapter 9 Attenuation profile File Management Using directions keys select the directory and then the file to open Click on Load Click on View Tace s or Load Trace Config The selected file is opened For further informations on file management see Chapter 14 File management User Manual 780000102 19 161 Chapter 9 Attenuation profile File Management 162 User Manual 780000102 19 CD measurements using phase shift method The Chromatic Dispersion analyzer function using phase shift method is available through the 81DISPAP 81MRDISPAP and 81CD modules and is described in this chapter Topics discussed in this chapter are as follows CD activation and self calibration on page 164 Configuring the CD test on page 164 CD Reference measurement on page 169 Performing a CD Measurement on page 172 Performing a CD measurement through amplifiers on page 173 Display of CD results on page 174 File Management on page 176 User Manual 780000102 19 163 Chapter 10 CD measurements using phase shift method CD activation and self calibration CD activation and self calibration 1 Select the CD function in the Instrument SYSTEM menu To do this press the SYSTEM button then select the CD function and press the key e Fig 71 CD icon selected
208. nts cannot be recognized automatically from their signatures for example couplers multiplexers etc For this reason it is advantageous in some cases to be able to change the type of events To do this Inthe Advanced menu select Manual measurement Select the Event Code button fom Suon Selo fc Pius Fig 30 Buttons used to modify types of events User Manual 780000102 19 63 Chapter 4 Reflectometry measurements Advanced functions in Expert mode New more specific event types are then proposed Splice Connector Mux Demultiplexer n3 Separator Coupler End of fiber RE Ghost Position the cursor on the line for which modification of event type is desired Click on the button corresponding to the required type of event Table notes With each event it is possible to associate anote of no more than 40 characters entered by the user an indicator of uncertainty qualifying the result displayed me NOTE This information appears in the table under the line relating to the event if it has been validated in the SETUP menu on the Notes line Notes For each wavelength a maximum of 16 notes is possible For each note 40 characters can be entered me NOTE Each note is associated with an event Consequently if the event is deleted the note will be deleted too To enter a note inthe menu SETUP Result Screens Notes the Notes option must be selected
209. nu key to select Shift then use the arrow keys to make the required shift User Manual 780000102 19 159 Chapter 9 Attenuation profile File Management Results table Cursor To move the cursor s on the trace press the Cursor menu key then use the arrow keys Ax and W or and gt The coordinates of each cursor intersection with the trace are indicated above the graph area Wavelength To move the cursor from one wavelength to the next one press the Wavelength key and use the arrow keys A and W or 4 and gt The cursor will move both on the trace and in the table if the trace and or the results table is displayed Trace Table Enables to display the trace and or the results table 8 lines of the results can be displayed below the trace or 20 lines with no trace The results table provides for each wavelength calculated using the wavelength range and the incrementation parameter as seen in Wave length Range on page 153 the attenuation profile in dB km and the total loss in dB File Management Saving Attenuation Profile measurements 160 Recalling AP files If you had entered Auto store then the results will be saved automati Cally If not or if you want to store the results under another name directory etc 1 Press the FILE key 2 Select Setup with the soft key Setup Explorer 3 Modify the parameters you want 4 Press Store Trace Attenuation Profile traces are stored with the exte
210. o WE Sh sc UP O O o PRZE o o o Oo Oo Oo JE o o Ab Pas E BE AE i BS o o Oo Oo Oo Oo JG UK 9 O ANVE EIER ED M AEL o fc AE o 9 Jt UR d o o O don ZUG EA FF E A AE A YY JAB E EE SJ T11363 2006 X ERZA EA ESEE D de RII 0 A EE MA EEH SJ T11363 2006 280 User Manual 780000102 19 Appendix A RoHS Information Concerned products OTDR 8100 Modules Series Concerned products OTDR 8100 Modules Series 8111MM 8112MM 8114 DR HD UHD VHD 8115 DR HD UHD VHD 8117 HD HD RC VHD VHD RC 8123MM 8126 DR HD UHD VHD 8129 UHD VHD 8136 HD UHD 81BBS 1 2 815MTAU 2 3 82PRINTER China RoHS FT RJ dais Rep Bl E RUNE fa PEERS 39 5 JWptsesett China RoHS SKI i ref FEL RAG BE EEUU ors HREN EAE BERE PAS XXXXXX Mp HR HERRERNE EEA m ERRE mE IE a ae EHE CEEI F 5 25 PR PTB APRA AE AR OO EB IE ET F SERE WTAE BERAEAI Pl IAM ARE i rats IER ERE OUI A P SER EH E ABS n m ETE A TE AS TSEE EWA MRE ERRI ABA RUARI PER BK fft Pb K Hg Cd TOME CR ZURCR PBB Emo PBDE TH o o o 9 2 2 EDU EE A X O O O Oo O IET Oo 9 Oo 9 O Oo E 9 o fe 23 O O O O O O Em s VG 9 o MEA O O
211. o load Click on Load a A O N a Click on View Trace s or Load Trace Config The selected file is opened User Manual 780000102 19 199 Chapter 11 OFI Module File Management 200 User Manual 780000102 19 Multi Test Access Unit This chapter describes the function of the MTAU Multi Test Access Unit module and its use The topics discussed in this chapter are as follows Function of the MTAU module on page 202 Connections on page 202 Configuration on page 203 Manual mode on page 203 Auto mode on page 204 Use of the Fiber Characterization script on page 207 The main application of this module is to be used together with the 8000 platform User Manual 780000102 19 201 Chapter 12 Multi Test Access Unit Function of the MTAU module Function of the MTAU module The MTAU is a passive module switch used to route the signals from the different measurement plug ins to one and the same fiber The advantage is to be able for example to make all the characterization measurements insertion loss reflectometry chromatic dispersion spec trum and polarization measurements with a single Base Unit without ever disconnecting the fiber Connections 202 The MTAU plug ins offer a common port with 4 ports A B C and D The fiber to be tested must be connected to the common port The other ports are connected to the measurement plug ins e g OTDR CD OSA PMD or an external instrument
212. o o di doc o 0 o o o 0 DES SEE o o o o DX X Fe 8 Pe BE AE HL Oo O O O Oo O SEL ob eB t Oo Oo O 9 Oo O E BAA s Oo Oo Oo Oo Oo Sh Pas B ARE AC AS oO O Oo fo Oo Oo EX v v o o o v FEME FEAU ER RU Vt H Oo O O Oo O Oo i a RU GR Ho fi B 4 Q O O s Oo O O KRZA E EA ote A E A E A EE H E EE SJ T11363 2006 X dn AUCH SEG EW BD EARE E39 OE BY eH SJ T11363 2006 282 User Manual 780000102 19 Appendix A RoHS Information Concerned products PMD and WDM 8100 Modules Series Concerned products PMD and WDM 8100 Modules Series 81PMD 81WDM 81WDMPMD China RoHS FEL He AAP Yo BR aE Hl FB Dp E fa EPL 39 S JE BY ae Be BE China ROHS ZSR RU j d Sh BE f FE DL BR A EA 8 EE AS a a HET E FLUE BAIL BA HE o Pd XXXXXX 3f Di B FE 30 f IE ds Us ik E E 3E n hh Exon Ub dh IC AS PE PUE HU SEMI OEM ER FA 25 d ses P E SB FC A AE H E P de UT AR BR IE ET DU P A 963 8 CIS AH it FSR AN ET ES Bl GO AL TH o iE HO BR HS A j gh HO E ULT A H BIW BEE UE DI TE e EEA KRAKA ERR ABABA MTR ETE R fft Pb K Hg Ai Cd WU R CR SRI K PBB ZR EM PBDE XH O o e EDI vt Be A X 9 o DEUE o o EXJ s E53 o o o
213. ocedure 142 method used 8 principle of measurement 7 reference measurement 137 results screen parameters 137 Spectrum FFT 143 statistics 145 PMD coefficient 9 287 Index R Receive Cable Start 40 Ref power power meter 185 Reference trace 71 Reflectance definition 3 result in OTDR table 60 S Script 207 251 Shift 25 Attenuation Profile 159 Short Acquisition 52 Short acquisition 36 55 Signal threshold WDM 104 Source display 76 Source option 76 T Table Notes OTDR 42 Technical specifications 253 Threshold OTDR fiber end 38 reflections 38 User Manual 780000102 19 U Universal connector cleaning 16 User manual references 276 W Wavelength WDM specifications 261 WDM OSA acquisition parameters 100 Configuration 98 difference between 2 traces OSA 29 display param and analysis alarms 108 grid 106 measurement parameters 103 results display 112 SNR parameters 105 Table results notes 116 table results 114 Z Zoom Attenuation Profile 159 OTDR 57 WDMI OSA 111 Zoom to end 46 288 Test and Measurement Regional Sales North America Latin America Toll Free 1 800 638 2049 Tel 55 11 5503 3800 Tel 1 240 404 2999 Fax 55 11 5505 1598 Fax 1 240 404 2195 Asia Pacific Tel 852 2892 0990 Fax 852 2892 0770 EMEA Tel 49 7121 86 2222 Fax 49 7121 86 1222 8100M02 UM 09 11 AE Rev 19 09 11 English www jdsu com
214. of the CD module Fig 78 Connections for the CD Measurement mE NOTE You can modify the fiber length without performing a measurement again The CD results dB km will be recalculated automatically Performing a CD measurement through amplifiers The CD reference step is not required for measuring through amplifiers 1 Connect the source and the 81DISPAP 81MRDISPAP module at each end of the fiber under test Optical attenuators OLA55 1 and OLA55 2 have to be positioned before and after the amplified link JDSU recommends to setup the front attenuator OLA55 1 so that the power level received by the amplifier is 10 dB lower than the in service power level in normal operation setup the far end attenuator OLA55 2 so that the maximum received power level by the CD tester is 10dBm max Amplified Network 81BBSXX or 81DISPAP or OLAS55 2 OBS 5XX 81MRDISPAP Psource Pi 10dB Ptester 10dBm max 1 Press the SETUP button to access the CD configuration menu 2 Select the appropriate CD test setup according to your application as earlier defined in Configuring the CD test on page 164 User Manual 780000102 19 173 Chapter 10 CD measurements using phase shift method Display of CD results 3 Select Yes for Amplified link It will limit the acquisition band from 1530 nm to 1565 nm 4 Press the START STOP button to perform CD measurement mes NOTE Depending on the amplifier specification it
215. of the trace where the slope is to be measured Place the cursor B at the end of this section Press the Advanced key then the Manual key then select Slope User Manual 780000102 19 Chapter 4 Reflectometry measurements Advanced functions in Expert mode Press e the slope of the specified trace section is displayed This green cross shows that an alarm threshold has not been exceeded t550nm 2000 7 fees COM 17m 1037108 8 5874122m 2151248 AB 3294 05m 3 382 dim PfxjswormpA CJotooTna cp AUS Slope Reflectance Fig 32 Measurement results A yellow icon 7 would indicate there is a Warning alarm thresholds are critical A red cross x would indicate the alarm thresholds have been exceeded Result of slope measurement The result is displayed on the screen between the two slope indicators and The measurement results are also available in the table which you can display in its entirety by selecting the Table function after pressing Exit twice to quit Advanced mode In the table distance shows the distance between the beginning of the trace and the end of the slope section shows the distance between the previous event which may also be the beginning of the link and the end of the slope Thus this section value is not equivalent to the distance between the two slope indicators and Slope shows the slope value in dB km User Manual 780000102 19 67 Chapter 4 Refle
216. old for all wave lengths select the reference value and click Update for All Wavel mmm NOTE A continuous push on the direction keys increments the value by 10 dBm Configuring and displaying the zm parameters of the cw 1 6 2 5 3 Sam nm source Source 5 0 5 5 dBm Swoon esent rs Fig 84 Source configuration When the laser is on the icon amp is displayed 182 User Manual 780000102 19 Display of results and command Result of the measurement in progress _ Chapter 11 OFI Module LTS function The parameters of the source can be accessed directly on the results screen of the LTS module by pressing the Source Configuration soft key Wavelength To change the wavelength when a multi wavelength Source is present depending on option The wavelength value is displayed Mode To vary the mode of emission of the source Possible modulation values are 270Hz 330Hz 1kHz 2kHz Auto the sources emit on determined frequencies to enable the power meter to detect the wavelength used automatically Twintest cyclical emission on all available wavelengths for a few seconds on each wavelength compatible with the JDSU OLP 5 6 15 16 18 CW continuous emission The mode used is displayed above the icon A Power In CW mode you can choose the emitted power either the nominal value 3 5 dB or an attenuation of 3 or 6 dBm with regard to this nominal value to g
217. on lt mail gt has been configured with one media for example Ethernet in the system setup menu see the base manual of the Base Unit reference 8000M02 for example To send a mail you must have filled the 2 following fields Mail to Use the arrow key gt to enter in the edition window and enter the name of the recipient Subject Using the same key enter the subject of the mail or a comment if necessary User Manual 780000102 19 227 Chapter 14 File management File configuration menu Buttons on the Saving traces right of the screen Next Trace Store Trace Store All Traces Fig 119 Save These buttons are used to save one or more traces Store Trace allows to save the current trace opened Store all Traces allows to store all the traces displayed in overlay OTDR and OSA only in one single file The softkey Next Trace is used to activate the menu of the following trace in an overlay configuration OTDR and OSA only mS NOTE If you want to store traces on CD ROM and if no CD is set into the MTS T BERD 8000 or if the CD is write protected then the following message is displayed Selected Storage device not pres GME Ol weite proOcecesc Please select eue device To copy the configuration on to all the tabs Copy Setup for all gt Copy Setup For all Fig 120 Copy Setup For All The button Copy Setup For all applies the configuration modifications made in the File menu displa
218. on Source on the System page This mode is described in this chapter i This option is not available for UHD modules The topics discussed in this chapter are as follows Source option on page 76 User Manual 780000102 19 75 Chapter 5 Source option of the OTDR Modules Source option Source option Activating the The Source function is an option chosen at the time of order and incor Source fonction porated into the OTDR module in the factory To activate the function Press the SYSTEM button Use the direction keys to select the Source icon section of the OTDR Module framed in green Press the validation key e9 The icon is selected Configuring Once the source icon is selected click on the SETUP or RESULTS button and displaying to display the result page and to configure the source the parameters of the source 270Hz A 4 3 4 0 nm Fig 34 Configuration of the source Laser On Laser Off Activation or shut down of the laser same function as the START STOP button When the laser is on the icon A is displayed The parameters of the source can be accessed directly on the result screen by pressing the Source Config soft key Wavelength To change the wavelength when a multi wavelength source is present depending on option The wavelength value is displayed Mode To vary the mode of emission of the source Possible modulation values are 270 Hz 330 Hz 1 kH
219. ontents Channel value Here the manual value of the filtering to be performed can be entered using the direction keys and or the numeric keypad Tracking Activating the tracking function will make the internal tunable filter follow slow wavelength changes of optical sources and transmitters providing stable output power The information Locked appears as long as the channel remains within the tolerance limits of the instrument If the channel strays outside the tolerance band the information Unlocked appears Using channel After setting sweep mode in the acquisition menu of the SETUP screen filtering on Filtering press the START STOP button to start or stop filtering of the signal Drift measurement The OSA xxx modules provide a Drift measurement application to perform multiple measurements and display the recorded results in a graphical format trace over the time This can be used to monitor the drift of power wavelength and SNR of optical systems or components This is important to measure the drift of non temperature stabilized transmitter in CWDM networks mmEEES NOTE A Drift measurement can only be done at predefined wavelengths or frequencies for this reason a reference Grid needs to be defined and the Channel Detection parameter is set to Grid The following parameters need to be set for Drift measurements Number of Sweeps defines the number of sweeps 1 to 10 000 Interval Defines
220. or channel power integration will be 1 2 the min channel spacing setting left and right to the channel center frequency The measurement result will be displayed in the WDM table as Level in dBm OSNR parameters To modify these parameters go to the OSNR line A sub menu then appears proposing the following options WDM mode settings OSNR method Side of the peak where the point of reference for noise measurement is taken left right average left and right worst case of left and right S 5N distance Distance between the peak of the channel and the point of reference for the noise Auto distance determined according to spacing of channels Manual enter a value 25 GHz 0 2 nm 50 GHz 0 4 nm 100 GHz 0 8 nm from the peak if the unit is THz OSNR mode settings only available for OSA 320 or OSA 500R in I OSNR mode Noise Shape Filtered evaluation for mixed filter shaped ROADM networks Unfiltered evaluation for flat top filter shaped ROADM networks Noise Acq Bandwidth Reference bandwidth used for the acquisition of noise standard 0 1 nm 1 Attention all modification of these parameters has immediate repercussions on the trace and entails the loss of the measurement statistics User Manual 780000102 19 105 Chapter 7 Optical Spectrum Measurement OSA optical spectrum analyzer Setup values lie between 0 05 nm and 1 0 nm Splitter compensation When the measurement i
221. our own configuration Test Aulo In Test Auto configuration the setups below are provided Configuration d Setup menu ACQUISITION Sweep Single Averaging acquisition Auto Make reference No Reference date Long term No MEASURES Coupling Strong File Menu Filenaming Auto Cable Id Fiber Num Direction Autostore Yes Fiber Nbr Increment Yes Manual Mode In manual mode you can set your own parameters Configuration 1 Does not apply with 81DISPAP 81MRDISPAP modules used with a PSM 2 For use with PSM module only in High Resolution PMD mode User Manual 780000102 19 133 Chapter 8 Polarization Mode Dispersion Measurement PMD Activation and self calibration 134 Acquisition parameters a Sc Serep High Dynatnee Aute Averaging acquisition f ec APCD Known Length Ves Fiber Length 12 000 km Distance Unit km Coupling Measurement Band Alarms Active Spectral Unit nm Fig 52 PMD Test setup menu Expert Mode NOTE The key Copy Setup For AP CD allows to apply the PMD configura tion to the other selected function s of the 81DISPAP or 81MRDISPAP module NOTE When the composite power of the input signal is higher than 20 dBm a warning is displayed and the signal is cut off Acquisition band only available with 81DISPAP modules OESCL Acquisition will be performed on the full band SCL Acquisition will only be performed on S C and L b
222. ower to measure emitted power connect the power meter directly to the output of the optical emitter to measure the power at the input of an optical receiver the power meter is connected to the end of the fiber at the point where the optical receiver would be connected 178 User Manual 780000102 19 Chapter 11 OFI Module LTS function Attenuation For measurement of the attenuation of power in a complete link or in measurements elements such as sections of fiber connections or optical components a optical link loss light source and a power meter are required This attenuation is usually deduced from the measurement of optical power at two points Laser light Source of the Base Unit Power meter of the Base Unit Reference Link under test fiber Attenuation AaB P1 dBm P2 dBm To perform accurate measurements the following conditions are vital Use one of the light sources of the LTS or a light source which is stable both in time and as a function of temperature Make sure that all connections and fibers and the receiving cell are perfectly clean Use a reference link between the laser source and the test subject If several measurements are to be made under identical light injec tion conditions this reference fiber must not be disconnected during the period while measurements are taking place Insertion loss method 1 The power meter is first connected to the laser source via the refer enc
223. pear in this typeface User Manual 780000102 19 xxiii About this guide Conventions Table 2 Typographical conventions Continued Description Text you must type exactly as shown appears in this type face Variables appear in this type face Book references appear in this typeface A vertical bar means or only one option can appear in a sin gle command Square brackets indicate an optional argument Slanted brackets group required arguments Example Type a set exe in the dia log box Type the new hostname Refer to Newton s Telecom Dictionary platform al ble login platform name password Table 3 Description A plus sign indicates simulta neous keystrokes A comma indicates consecutive key strokes A slanted bracket indicates choosing a submenu from menu Keyboard and menu conventions Example Press Ctrl s Press Alt f s On the menu bar click Start gt Program Files Table 4 This symbol represents a general hazard Symbol conventions xxiv User Manual 780000102 19 About this guide Conventions This symbol represents a risk of electrical shock NOTE This symbol represents a Note indicating related information or tip This symbol located on the equipment or its packaging indicates that the equipment must not be disposed of in a land fill site or as munici pal waste and should be disposed of according to your nat
224. playing absolute power dB for displaying a result relative to a reference link loss Reference level If dB units were chosen in the previous line selection of the reference value for the wavelength selected Using the direction keys first choose the wavelength then press the key to access choice of the value XXX XX then confirm this value with the validation key This reference is also automatically available in the Results page using the Set as Reference key Attenuator compensation Choice of level to be applied to the wavelength chosen for measurement to compensate for the loss due to the external attenuator XX XX dB First use the direction keys to choose the wavelength then press gt to access choice of value then confirm this value by pressing the validation key User Manual 780000102 19 181 Chapter 11 OFI Module LTS function mmm NOTE To copy a Reference Level or a Attenuator Compensator on all wave lengths select the reference wavelength and click on Update for All Wavel Configuring the Alarm Activation of the Alarm function any result below alarm parameters the lower threshold or above the upper threshold of the power meter will be displayed in red on the Results page Lower and upper thresholds Choice of lower and upper thresholds for each available wavelength from 60 to 40 dBm selected with the direction keys mmm NOTE To copy one value of the Lower or and Upper thresh
225. ponds to the extremity connected to the local unit Lyon corresponds to the extremity connected to the remote unit User Manual 780000102 19 87 Chapter 6 Bi directional OTDR Trace display functions me NOTE You may only use this key to change page when the measurement is completed When the measurement is completed the Curve page corresponding to the local Base Unit is automatically displayed Ori gin if the direction of the link has been defined O gt E End if the direc tion of the link has been defined E gt O Select the Summary function using the See Process Curves Summary key to visualize the results in a sumary with the Total Loss amp Total ORL for each wavelength Fig 39 Summary display with OEO traces An additional table can be displayed under the summary with issue high lighted in case of problem Fig 40 Warning on the OEO results Origin and End Bi directional measurement may be performed using up to 4 different traces wavelengths We can therefore analyze successively up to 4 couples of Origin and End traces 88 User Manual 780000102 19 Chapter 6 Bi directional OTDR OEO Result table In order to go from one couple to another activate the Wavelength Evt key select Wavelength and move from one trace to another using arrows These traces are OTDR traces All regular OTDR functions are proposed to modify the display Zoom Shift Cursors Evt Curve Table Full scale Just like in OTDR
226. position of the events measured When there is saturation for a reflective event the maximum value measured is displayed with the sign This shows that the actual reflectance is greater than the value shown for example if R gt 29 5 dB is displayed the reflectance could be 18 dB The reflectance of a ghost event is displayed in brackets on the trace In Quick Link Test mode this 2 keys are not available sworn Daron 20to oron Gears 56 User Manual 780000102 19 Chapter 4 Reflectometry measurements Result page in Expert and Quick Link test mode Trace Event 1 The Trace function is useful in a multi trace display as the direction functions keys can then be used to select the active trace which turns green see Overlay trace function on page 26 2 The Event function of the MTS T BERD 8000 enables the cursor to be moved on to the faults that have been measured and the results of which are displayed on the screen After selecting the Event function on the Trace Event key pressing the keys amp VY E or gt once will move the cursor from one event to the next This function in association with Zoom and Cursor enables rapid analysis of the fiber Gees NOTE While moving from one event to another the value of the zoom is con served unless this is impossible Criteria for display An event will be displayed if its attenuation or its reflectance exceeds the of an event corresponding thr
227. preferable to use the same type of connector at both ends of the fiber being tested to ensure the same connection conditions for measuring P1 and P2 Standards and 20 for different types of fiber non offset offset non zero or homogeneous Fibre F A A M dispersion dispersion offset dispersion Standard ITU Y ITU T G 652 ITU T G 653 ITU T G 655 Standard IEC IEC 60793 1 1 IEC 60793 1 1 IEC 60793 1 1 type B1 type B2 type B3 Standard TIA EIA Iva IVb IVb Approximate Ay 1310 nm 1550 nm 1500 nm or indefinite Most suitable method of approximation according to trace zone Single Mode Fiber Type ITU T Wavelength Range Approximation Dispersion unshifted fiber G 652 around 1310 nm 3 term Sellmeier standard fiber 1550 nm region Quadratic Full wavelength range 5 term Sellmeier 1260 1640 nm User Manual 780000102 19 11 Chapter 1 Principles of measurement Standards and l0 for different types of fiber Single Mode Fiber Type ITU T Wavelength Range Approximation Dispersion shifted fiber G 653 1550 nm region Quadratic Full wavelength range 5 term Sellmeier 1260 1640 nm Non dispersion shifted G 655 1550 nm region Quadratic fiber Full wavelength range 5 term Sellmeier 1260 1640 nm Wideband NZDSF G 656 Full wavelength range 5 term Sellmeier 1260 1640 nm Mixed fibers including DCF 1550 nm region Quadratic Full wavelength range 5 t
228. pter EUNIAPCDIN Universal APC Connector for SM only with LC adapter EUNIAPCLC 1 A connector fixed or universal must be specified at time of order of the plug in Additional Adapters for Universal Connectors Reference Universal FC Adapter EUFCAD Universal SC Adapter EUSCAD Universal ST Adapter EUSTAD Universal DIN Adapter EUDINAD Universal LC adapter EULCAD 1 Interchangeable in the field User Manual 780000102 19 277 Chapter 17 Options and accessories References of result processing software References of result processing software Reference Optical Fiber Trace software EOFS100 Optical Fiber Trace software 5 licences EOFS1005L Optical Fiber Trace software site licence EOFS100SL FiberTrace software update EOFS100UP Optical Fiber Cable software EOFS200 Optical Fiber Cable software 5 licences EOFS2005L Optical Fiber Cable software site licence 278 1 Free software updates on the Web but without user manual User Manual 780000102 19 EOFS200SL RoHS Information This appendix describes the RoHS Restriction of Hazardous Substances information which are mandatory requirements from China The RoHS directive consists in the restriction on the use of certain hazardous substances in electrical or electronic equipment sold or used in the European Union after July 1 2006 These substances are lead mercury cadmium hexavalent chromium polyub
229. quisition Range 1260 1640 nm Wavelength Uncertainty 0 1 nm Minimum length 1km Dynamic Range 12 33 dB Measurement Time 40s to 80s 80km G652 10km G655 Zero Dispersion wavelength uncertainty n a 4 5 nm Zero Dispersion wavelength repeatability n a 0 4 nm Dispersion uncertainty 5 0 06 ps nm km 0 3 ps nm km Dispersion repeatability 4 0 02 ps nm km 0 02 ps nm km 1 With Broadband Source module E81BBS1A in Corresponding mode 2 Dynamic range obtained without PSM module A typical extra budget loss of 1 25dB applies when passing through PSM 3 Repeatability refers to the typical one sigma standard deviation value obtained for systems cycling of 20 measurements 4 1530 1570 nm band 5 Excluding reference fiber uncertainties BBS Modules Specifications at 25 C unless otherwise mentioned 81BBS2A 81BBS1A Wavelength range 1260 1640 nm 1460 1640 nm Minimum spectral density 40 dBm 0 1 nm 40 dBm 0 1 nm Typical Output power 12 5 dBm 11 dBm Power consumption 10 Wh Operating temperature range 5 to 40 C Laser Class 1M 1 over 1260 1630 nm wavelength range AP mode 2 over 1470 1630 nm wavelength range 3 Under the IEC 60825 1 2001 international standard 266 User Manual 780000102 19 Chapter 16 Technical specifications Information on fiber modules 82LFSM2 82LFSM4 Information on fiber modules 82LFSM2 82LFSM4 82LFSM2 82LFSM
230. quisition in real time mode press the START STOP key Multi if the plug in possesses several lasers to perform successive acquisi wavelength tions on all the wavelengths acquisition Inthe SETUP menu on the Laser line choose several lasers or select All Start the acquisition by pressing the START STOP button Once the acquisition for the first wavelength is finished or to stop it manually click on Stop Wavelength to stop the measurement for this wavelength and automatically start the measurement for the following one The different traces appear in the same window and can be managed as traces in overlay see Overlay trace function on page 26 Acquisition in Fault Locator mode Principle of the The Fault locator mode is used to detect the distance of the end of fiber Fault Locator from its origin Consequently il allows to detect a possible break of the mode fiber It also allows to calculate the Total Loss User Manual 780000102 19 47 Chapter 4 Reflectometry measurements Acquisition in Fault Locator mode Performing an 1 Push the SETUP button acquisition in 2 Inthe Acquisition parameters Fault Locator Select Fault Locator in the line Mode see Configuring the mode reflectometry test on page 32 3 Configure the other acquistion parameters see Acquisition param eters on page 33 or click on Test auto to configure automatically the acquisition once the mode is selected or click on Facto
231. r Cable Mail to Subject My Ho Sor files Auto store File Type Fiber Id Fiber Number 1 Fiber Nde increment TER Extremities are different Direction Origin End Location Cable Structure Operator Comment Setup wt xptorer wLink Mar Serox SQsmorwr EZotooron Sus Fig 113 File Menu example with OTDR plug in Tabs give access to the File menu of each application OTDR OSA Power Meter etc present in the modules and plug ins of the instrument It is possible to open a file even if the corresponding plug in is not present in the instrument e g OSA file without OSA plug in A new tab then temporarily manages this application When several different applications corresponding to modules or plug ins for different measurements are managed by the Base Unit pressing the FILE key several times in succession changes from one tab to another to give access to the file configuration of the desired application e g OTDR OSA etc See Tabs on page 19 User Manual 780000102 19 Chapter 14 File management File configuration menu File signature The acquisition parameters of the trace contained in the selected file are displayed at the top of the screen together with a small scale represen tation of the trace provided it was acquired on a MTS T BERD Base Unit see Mini trace on page 19 Fiber number Pulse Color code width Laser Refraction inde
232. r DROP In order to ensure the best BER ratio it is sometimes necessary to be able to test DFB lasers widely used in DWDM technology DFB measurements are the following User Manual 780000102 19 Chapter 1 Principles of measurement PMD principle SMSR Side mode Suppression Ratio the amplitude difference between the main spectral component and the largest side mode Mode Offset Wavalength separation expressed in nm between the main spectral component and the SMSR mode Peak Amplitude The power level of the main spectral component of the DFB laser Bandwidth Displayed bandwidth of the main spectral component of the DFB laser Peak of the main spectral component Bandwidth Side Mode Supression Ratio A fa m j f V N pe uw e P Mn atin e I 1 1 1490 1494 Min offset Max offset Fig 4 DFB measurements PMD principle The transmission rate and range are two of the most important parame ters of fiber optics paths and must therefore be optimized And since more and more paths including those already installed are being used for transmitting Wavelength Division Multiplex WDM signals or for bit rates of 10 Gbit s it is becoming all the more important to determine the Polarization Mode Dispersion PMD PMD which is the basic property of single mode fibers in particular affects the magnitude of the transmission rate It results from the differ ence in propagation times of
233. r an ORL manual measurement Once all the results are displayed click on the FILE button to save the file in a directory File Management Storing results Although each measurement is automatically stored for FOX results only it is possible to save the results under a different file name direc tory etc Once the results are displayed 1 Push the FILE button 2 Select Setup with the key Setup Explorer 3 Modify the parameter you want in the FILE configuration menu 198 User Manual 780000102 19 Chapter 11 OFI Module File Management 4 Click on the Store Trace key The FOX files are saved with the extension FOX The LTS files are saved with the extension LTS The ORL files are saved with the extension ORL With the LTS and ORL results two files are saved N The first file is to be used with the Base Unit and allows all LTS mea surements results to be retrieved It is saved with the extension LTS or ORL The second file is an ASCII file using tabulations to separate values It is saved with the extension txt and cannot be opened by the Base Unit It has been designed to be used with a spreadsheet program on a PC where it allows all LTS measurement results to be retrieved and formatted in a customized table For more details on file management see File management page 217 Recalling files To recall a LTS FOX or ORL file Go to the Explorer Select the directory Select the file t
234. r codes possible on the instrument can be displayed and modified see figure Color code definition on page 227 Five different codes can be managed by the Base Unit including a stan dard code The standard code TIA may be displayed but it cannot be modified The other codes called by default USER1 USER2 USER3 and USER4 can be entirely personalized Edited code selects the code for display or modification Copy name to give a new name to the code selected press Code 1 23 the gt key which calls up the edit menu View codes displays the color codes 1 to 12 13 to 24 or 25 to 36 Use the arrow gt to modify the codes if neces sary User Manual 780000102 19 Chapter 14 File management File configuration menu Edited Code View Codes Fig 118 Color code definition Operator Use the arrow gt to enter the name of the operator carrying out the measurement Comment In contrast to the other data in this menu the comment is specific to a fiber and not to the whole cable This line is thus used to enter a new comment and not to display it The comment appears at the top of the screen with the other parameters of the fiber see figure Example of signature of an OTDR file in the File Menu on page 219 This comment will remain available for the next acquisition unless it is deleted It is also saved when a trace is saved with a comment File export This sub menu appears when the opti
235. r test to the common port Gees NOTE Leave the port not connected if you don t have the associated test plug in module video ODM CD PMD AP BBS2A Inspection ime a Scope 1 a UJ us zy MTAU 4 Multi Test Access unit J allowing a single connection 2 disconnection of the fiber under test 2 for multiple measurements UJ e Qo o 5 i gt Keyboard _ USB pul E mem m Fig 100 Connections User Manual 780000102 19 207 Chapter 12 Multi Test Access Unit Use of the Fiber Characterization script This function requires use of separate broadband light source at N the far end Launching the Script 2 3 Push the SCRIPT key to access the menu Select the Link characterization script Press PLAY to launch it man X 90 H 9 Default Macro Mone macro test 1 macro fichier tesi Empty Empty Empty Empty Empty Empty E Enk Characteriration Sesvavsune Fig 101 Page Script 4 The script will allow to select within the test functions available in the 8000 platform 5 Using a keyboard enter the Job configuration cable commis sioning ring and link documentation lest etu deb beet a Corretto teapa tee Cate comma tie Fiber Span tenting Available test 9 Eom Mee functions freemeom sns a Dern neraman con lewd herM fem Laesi Fer t em recte E Job amp Li
236. reen by markers Only the results exceeding the detection threshold defined in the SETUP menu are displayed NOTE Before starting an automatic measurement make sure that the func tion Lock Evts accessible by pressing Advanced is not activated the icon E must not be present in the left hand corner under the trace By means of this method of detection you can quickly locate all the faults in the fiber under test If an automatic measurement does not detect all the events additional manual measurements can be carried out To delete all the markers press the Advanced key then select Del Res When there have not been any measurements to carry out an automatic measurement press Advanced then select the function Auto Mes The following procedure is recommended 1 Fully automatic measurement the instrument locates the events and proceeds to the measurements 2 Addition of markers see Addition of markers on page 62 in the cases of splices showing low attenuation and of close events The MTS T BERD 8000 then automatically measures the slope before and after the markers selected and measures the attenuation of the splice 3 Addition of manual measurements if necessary in the case of very close events The MTS T BERD 8000 performs the measurements requested by the user To start an automatic measurement while a measurement is already in progress 1 Press the Advanced key 2 Select Del Res 3 Select Auto Mes U
237. rement Data connection status Fiber connection status Information zone User guide zone Measuremen t status zone Identifier of the origin or end o Information Information fibe ing irecti concerning local concerning remote Fig 36 Process page display with two T BERD 8000 If a 221 box is used the upper part of the process page is represented as show below Representation of the 221 Box py ig REMOTE oeol MTS 6000 sis 8126 VSRE 1310 1550 Operator 8126 VSRE 1310 1550 Fiber status Fig 37 Process page display with a 221 box with two MTS 6000 In this case the color of the fiber represented on the information zone changes according to the connection status Grey the connection is in progress Green the connection has been correctly established Red the connection has failed 84 User Manual 780000102 19 Fiber link check Measurement process Chapter 6 Bi directional OTDR Performing a bi directional measurement To ensure that the two units are connected to the same fiber under test select Check same fiber If the fiber is the same at both extremities a i7 symbol will be displayed on the measurement status zone Fiber measurement Step 1 Choose to use the markers stored in memory or not by selecting Lock Evt or Free Evts NOTE If the markers events are already defined for the link you may select the Lock Evt key This implies that t
238. ress the START STOP key to start the laser The result will appear in the results page and can be memorized in the table see Table of results page 184 Press the START STOP key to stop the laser Optical link loss Setting the zero value of the power meter measurements where accuracy is required as the noise from the pho It is important to set the zero of the power meter before making any N todiode fluctuates over time and with variations in temperature 1 Fixthe plug over the optical input of the power meter so that no light can reach the photodiode of the power meter If the zero adjustment is made without this plug an error message may be displayed as the photodiode will detect too much light 2 Inthe Results page press the Zero soft key Carrying out the reference measurement 1 Fixthe adapter corresponding to the jumper to the optical connector of the power meter User Manual 780000102 19 185 Chapter 11 OFI Module FOX Function 2 Connect the jumper between the input of the power meter and the output of the source 3 Configure the same wavelength on the source and the power meter The power measured is displayed in the results page of the LTS 4 Press the Set as Reference soft key to save the result displayed as reference value Measurements on the fiber under test After defining the reference value proceed as follows to make the measurement 1 Fixthe jumpers and connectors needed to connect the fiber
239. ressed the acquisition in real time is launched User Manual 780000102 19 45 Chapter 4 Reflectometry measurements Acquisition in Real Time mode 46 e EE oT TY PSs Fig 19 Example of acquisition in real time During an acquisition in real time you can modify the acquisition param eters without returning to the SETUP menu To do this press the Acqui sition Param key you can then use display keys to scroll through the possible values of the various acquisition parameters In real time mode only measurements relating to the cursors are possible but as soon as acquisition stops automatic measurement is possible During a real time acquisition you can reach the end of the fiber under test at any time using the Zoom to End key The real time mode allows to make Loss ORL or Reflectance measure ment using the A amp B cursors and the key None Loss ORL Reflect Position A amp B cursors on the trace 2 Click as many times as necessary to get the Loss ORL Reflec tance measurement between A amp B cursors The result is displayed under the trace User Manual 780000102 19 Chapter 4 Reflectometry measurements Acquisition in Fault Locator mode m A 000 970 kn i AH Sm n LOSS 0 236 d A A50 47 m DX LI f T I I NE Ir su orDa C OMM OTOR Ctocootpn Aoo Gss Fig 20 Example of loss measurement between A amp B cursors To terminate or interrupt an ac
240. rom the explorer 1 If several traces are in overlay check the correct current trace is selected 2 Goin the Advanced menu 3 Click on Overlay 4 Click on Set Reset Ref key The active trace becomes the reference trace Reference trace Active trace the icon appears on the upper right hand part of the results table its number is displayed in red To define all the traces displayed as reference traces click on Set Reset All Ref key whatever is the active trace User Manual 780000102 19 71 Chapter 4 Reflectometry measurements Reference Trace function Using the reference trace function in the 72 explorer Removing the reference trace s To change one reference trace into a standard trace select it using the Trace Event key and in the Advanced gt Overlay menu click once again on Set Reset Ref To change all the reference traces displayed into standard traces whatever is the active trace go in the Advanced gt Overlay menu and click on Set Reset All Ref Performing an acquisition once one or several trace s is are defined Three situations can occur once an acquisition is performed Only reference trace s is are displayed the trace acquired is added to the reference ones Reference trace s and standard trace s are displayed the refer ence trace s are blocked the standard ones are removed and the new trace acquired is displayed with the reference one s
241. rominated biphenyls and polybrominated diphenyl ethers The follwoing chapters are described Concerned products 8100 modules series on page 280 Concerned products OTDR 8100 Modules Series on page 281 Concerned products All OTDR VLR 8100 Modules Series on page 282 Concerned products PMD and WDM 8100 Modules Series on page 283 User Manual 780000102 19 279 Appendix A RoHS Information Concerned products 8100 modules series Concerned products 8100 modules series Nb 8000 series China RoHS BLE fei P7 oh VS il BE TE Cf PMLA 39 S T Ht JEP oe d ft China RoHS ER Bf j ds Pf 396 5 JH HL ERCRUG EA EMARE E WEB oa FA T 3 HUAL E RR FF s Pein 4 PK XXXXXX FA AK H I E IE bas RERE d FE BE m E o Eh BRE BE A CN S OR EIFE 25 PUDDLE Cale EE A DERRER E R ENERE H Ef EI SE MUSAE L b JSPR AS EY Enn PUn rud RE T OU 8 B 25 P dn RO HELP E SU ig Sh HR Be AE UE VI TE A T SEG EVIL VIC Or dic VUE SX ABAD CE BOE TR i Pb K Hg fis Cd AUMA CR WBCORPBB ZRK PBDE EDL o Oo o Oo o Oo EDU rto B A X o W iti ER o o v o o ii as Bi Oo Oo Oo Oo Oo Oo ft o o o Oo Oo Oo f ith o o o Oo Oo Oo TAJ O o o o TE o o o o o 9 fidi o o o Oo Oo Oo JERRI o Oo Oo O Oo Oo 4 i Pez UTERE RE o 9 s
242. ry Default to set the parameters defined in factory for this mode 4 Push the START STOP button The test configuration starts automatically A baragraph indicates the quality of the connection see Connec tion Quality indicator on page 44 Then the elapsed averaging time and the number of averages calcu lated are displayed The acquisition can be stopped at any time pushing START STOP button Display of the acquisition mode selected mmo 19102009 WE Fatis wos ue Airman aman ntm eam XKEES 48 User Manual 780000102 19 Chapter 4 Reflectometry measurements Acquisition in Quick Link Test mode Multi wavelength f the module possesses several lasers to perform successive acquisi acquisition tions on all the wavelengths in the SETUP menu check in Laser line that several lasers are selected or select All Start the acquisition by pressing the START STOP button Once the acquisition for the first wavelength is finished or to stop it manually click on Stop Wavelength to stop the measurement for this wavelength and automatically start the measurement for the following one The different traces appear in the same window and can be managed as traces in overlay see Overlay trace function on page 26 Acquisition in Quick Link Test mode Principle ofthe The fastest way of detecting faults in your optical fiber is to use automatic Quick Link Test 8cauisition mode The MTS T BERD 8000 then uses
243. s The attenuation due to the event in dB The reflectance of the event in dB or the ORL result if an ORL measurement has been carried out The slope before the event in dB km dB kft if it can be measured The length of the section that is to say the distance between the marker of the event and the previous marker The total attenuation of the fiber total dB loss in dB The table of results is interactive and reflects the measurements in prog ress Any operation carried out on the trace is immediately entered in the table so that you can see the result Summary page To display a summary ofthe results for 2 traces or more in overlay select the Summary function An additional window is displayed with issue highlighted in case of problem including bend with singlemode and including propagation delay in multimode Fig 29 Summary Results and Bend Table to the expert mode because the Summary function analyzes two traces at the same time Go back to the Table or Trace function to have access to these functions i In Summary mode there is neither access to the events function nor 60 User Manual 780000102 19 Chapter 4 Reflectometry measurements Advanced functions in Expert mode Advanced functions in Expert mode Automatic measurement and detection Automatic mode enables rapid detection of all the faults in the trace The faults detected are then measured and identified on the sc
244. s displayed If the reference measurement does not provide a correct result check the following points Error message Possible problem Possible solution Acquisition impossible Auto calibration is not com Wait for the calibration to be com Hit any key to continue pleted pleted Signal level too low The source is not switched Press the Source ON Source Check source and con on OFF button to switch on the nections source verify if Make reference is Hit any key to continue still set to Yes then repeat step 3 The Source battery is too Check if the LOW BATT red led is low lighted If yes then recharge the battery Defective connections Check that the cables are properly The CD mode has not been connected and the notches on the selected on the source connectors are correctly aligned Saving a When the reference measurement of the broadband source has been reference completed you can save the result on the hardidsk or disk of the Base Unit used 8000 or 6000 Platform measurement Proceed as follow 1 Click on the FILE button 2 Select Setup 3 Enter a filename for this reference or click on Default Filename User Manual 780000102 19 171 Chapter 10 CD measurements using phase shift method Performing a CD Measurement The file has the extension OCD but differs from the CD measure ment result files as it only contains the reference points the informa tion on the upper part of the s
245. s in the File menu notes in the table of results editing characters The mouse can be used instead of the direction keys to scroll through menus and make a selection Connect the keyboard and mouse to the USB connectors The external keyboard delivered with MTS T BERD 8000 6000 N 6000A is a QWERTY keyboard Virtual control it is possible to emulate hard keys with Virtual Control buttons buttons bar To display these buttons click once on the top of the screen in the status bar at the same height than the date and time User Manual 780000102 19 21 Chapter 3 Graphical User Interface Using an external keyboard mouse and screen touch options em o ee sep nesas suva see Wt Fig 12 Virtual control buttons bar The virtual control buttons bar is displayed during a few seconds You may click on any of these buttons to obtain exactly the same results than using the real buttons in the front panel of the Base Unit The virtual control buttons bar can not be displayed within desktop N applications see the User Manual of the Base Unit D NOTE This virtual control buttons bar is especially useful when the Base Unit screen is exported on a remote PC see the User Manual of the Base Unit Equivalence Although it is intended primarily to replace the Edit menu of the Base between Unit the external keyboard can replace all the buttons and keys of the Base Unit except the ON OFF button external
246. s made by the intermediary of a separator also known as a splitter it is possible to compensate for the loss introduced by this element and to display the value measured before or after it Go to the Splitter compensation line to display a sub menu proposing the following options Value Yes activation of compensation and choice of its value using the keys and gt or the numeric keypad from 1 to 30 dB by increments of 1 or 1 to 99 by increments of 0 1 Unit Choice of compensation in dB or as a percentage of the value measured For example with a 10 dB splitter the results will be augmented by 10 dB The trace will be offset upwards by 10 dB Achannel measured at 30 dBm will be displayed 20 dBm Tilt amp Slope Gain No Yes X Validates measurement and display of the max difference in gain in dB and slope of the gain in dB per nm or by THz above the trace mee NOTE This button will be available if at least two channels are detected Parameters of display and analysis of the results Those parameters are valid for all traces present on the screen Grid Go to the Grid line to access the Grid sub menu Select the Type line to see the different choices and modify them if required 106 User Manual 780000102 19 Chapter 7 Optical Spectrum Measurement OSA optical spectrum analyzer Setup Five possible types of grid are proposed with different corresponding values some of which are f
247. save the next trace from traces in overlay 3 Click on Save If you wish click on FILE button to display the Explorer page for another application and save using the same method the active trace from this application User Manual 780000102 19 237 Chapter 14 File management Explorer Function Displayed when two active overlaid traces are open The trace dexcribed in the file si gnature will be saved in the direc tory selected in this example Demo Curves Fig 125 Saving active trace from the explorer This will open automatically the edition keypad in order to give a filename for the active trace Loading files To access the functions for loading one or more files select the file s in and displaying the explorer and press Load Several options are then available traces Simple loading The key View Trace s enables simple loading of traces using the current parameters of the Base Unit The current trace is then replaced with this new trace Load with The key Load Trace Config will display the traces recalling the config configuration uration recorded in the file Thus the zooms cursors and parameters present at the time of acquisition will be used for the display This function also enables to recall and set the parameters defined in the screens corresponding respectively to the FILE and SETUP keys It is then possible to perform an acquisition under the same conditions as those of the trace recal
248. se contact JDSU Technical Assistance Center Configuration of the instrument The instrument configuration menu will be displayed directly after power up or by pressing the SYSTEM button The actual module status will be shown ON OFF on system window 1 For configuring the OSA press the OSA icon by touchscreen or select the function icon by arrow keys and press ENTER 2 Press RESULT button to see the OSA result window User Manual 780000102 19 97 Chapter 7 Optical Spectrum Measurement OSA optical spectrum analyzer Setup If the MTS T BERD 8000 6000 A is switched OFF in this configu ration the next start up will directly start the to OSA application and display the result window For more details about the general MTS configuration see the Base Unit manual For measurement connect the fiber to be tested on the optical input of the selected module NOTE The maximum optical input power for example OSA xxx 23dB Kind of input connector ifthe protection cap is green the optical input interface is a angled physical connector APC type if itis a black protection cap the interface type is physical connector PC type OSA optical spectrum analyzer Setup 98 To configure the Base Unit in preparation for an OSA test on a fiber press the SETUP button The various measurement parameters are proposed NOTE 1 Setupin Test Auto mode With OSA 320 OSA 500R two auto modes are
249. ser Manual 780000102 19 61 Chapter 4 Reflectometry measurements Advanced functions in Expert mode Addition of markers Addition of markers is a function only available in Expert Mode Representation of the markers Hints on the positioning of markers 62 To carry out a measurement it is advisable to go into the SETUP menu and activate the alarm thresholds in Result Screens gt Alarms validate display of results on the trace in Results on Trace All You can place markers of events on the trace at the exact position where you want to carry out automatic measurements You can also manually place markers in addition to those positioned automatically during automatic measurement You can then start an automatic measurement to obtain the results on all the markers The markers are represented by the symbol i if they are set during automatic measurements Advanced Auto Meas The markers are represented by the symbol l if they are set during manual measurements using the Set Event key To add markers of events Select a cursor A or B 2 Use the direction keys to move the cursor to the place where you want to position a marker Press the key Set Event An event marker is displayed at the position of the cursor and a measurement is carried out on the marker Measurement of slope before the marker starts just after the previous event or at the end of the dead zone at the beginning of the fiber m
250. sured then the slope following it Place the cursor on the fault between the two sections Press the Advanced key then Manual Measurement then select 5 Pt Loss Press The splice event marker is placed on the cursor and the result is displayed on the trace and in the table of results Manual It is possible to carry out an ORL measurement on a part of the fiber measurement of ORL Follow the following procedure to measure a part of the fiber 1 Position the cursors A and B to delimit the section that you wish to measure Press the Advanced key then Manual Measurement then select ORL User Manual 780000102 19 69 Chapter 4 Reflectometry measurements Advanced functions in Expert mode 3 Press The ORL will be measured for the section of trace defined TITTTE THE 27 00e 3 firm 0 C Mewmmesmemm 91 021dB a Fig 33 Result of ORL measurement ORL on a saturated trace If saturation occurs during an ORL measurement the result is given with the sign This means that the actual ORL value is less than the value displayed Memorization of To memorize the position of events with a view to repeating the measure the position of ments at the same place during a future acquisition or on another trace events Press the Advanced key then select Lock Evts The event memoriza tion icon will appear in the title bar The positions memorized will then be used in the subsequent measure
251. t 5 Tables at the end of chapter gives information about the appropriate standards and limits Principle of measurement of Chromatic Dispersion CD ODM using phase shift method The Phase shift method A modulated broadband light is sent over the Fiber Under Test The phase of the test signal is compared to the phase of the reference signal The measured value is the group delay corresponding to a wavelength interval between the reference phase and the test wavelength phase It is measured in the frequency domain by detecting recording and User Manual 780000102 19 9 Modulated Chapter 1 Principles of measurement Principle of optical power and attenuation measurements OFI processing the phase shift of The modulated signals The fibre chromatic dispersion is derived from the measurement of the relative group delay using an approximation formula Phase Shift Fiber under test A m Broadband source En Tunable Filter Fig 7 CD ODM measurement using phase shift method Principle of optical power and attenuation measurements OFI Power A power meter is all that is needed to measure emitted or received measurement Power to measure emitted power connect the power meter directly to the output of the optical emitter to measure the power at the input of an optical receiver the power meter is connected to the end of the fiber at the point where the optical receiver woul
252. tep 6 Step 3 Step 4 and Step 5 are performed for each wavelength to test IMPORTANT It is possible to stop the measurement at any step of the process by pressing the button START STOP on the master Base Unit It is also possible to request from the slave Base Unit that the measure ment is stopped by pressing the button START STOP The master unit receives the request via a message on the screen Remote asks for stop do you agree If Yes the measurement is stopped if No the measure ment resumes User Manual 780000102 19 Chapter 6 Bi directional OTDR Trace display functions Trace display functions Selection Local Remote Bi Directional Process A 1577 51m 589848 B 1578 78m 5 896dH EVE AB 127m 0 000dBikm UY oSunnery pli A wWlavelengt Event ACurser B e Event P Advanced as i Fig 38 Butterfly representation of the bi directional measurement By selecting the Curves with the Process Curves Summary key the unit displays the traces and results like in classical OTDR mode adding bi directional measurement results In the Curve page the multi choice key E allows to visualize successively the local trace the remote trace or both superposed mee NOTE The remote trace is reversed in order to superpose both traces in a butterfly fashion see Butterfly representation of the bi directional measurement page 87 1 In our example St Etienne corres
253. the msor extension One single txt file will also be generated Example if 3 traces are displayed in overlay and the File Type param eter is set on Multi msor then one single file will be saved with the extension msor OEO files When an OEO trace is displayed in the parameter File Type you can select four types of method for storing traces User Manual 780000102 19 221 Chapter 14 File management File configuration menu Fiber Description Fiber ID and Fiber 222 Number Color code Fiber Nbr Increment One oeo file the traces are stored in one file with the oeo exten sion One oeo file txt the traces are stored in one file with the oeo extension and one txt file is also generated Single sor the traces are stored separately in two files with the sor extension Single sor Txt the traces are stored separately in two files with the sor extension and two txt files are generated 1 for each trace PMD OSA AP Files When a PMD OSA or AP trace is displayed in the parameter Save Mode you can select two types of methods for storing traces File Only only the trace is stored in one file with its extension pmd ap osa File Txt he trace is stored in one file with its extension and one txt file is also generated This paragraph gives the fiber information for the extremity defined in Direction If the direction is O gt E then the fiber information co
254. the acquisition parameters pulse width range and resolution and acquisition time best suited to the fiber to be tested mode Performing an acquisition in Quick Link Test mode NOTE In Quick Link Test mode since all the parameters have been reconfig ured overlay and marker locking are not possible during acquisition Press the SETUP button then N On the Mode line select Quick Link Test On the Laser line select the wavelength of the laser if the MTS T BERD 8000 uses a dual wavelength plug in or select All Select the Measurement and Results Screen parameters wished You can automatically configure the Quick Link Test mode by pressing Test Auto key once the mode is selected or configure it according to the parameters set in Factory by clicking on the Factory Default key Acquisition phases in Quick Link Test mode When the START STOP key is pressed an automatic configuration procedure selects the optimum parameters after which acquisition is carried out in four phases User Manual 780000102 19 49 Chapter 4 Reflectometry measurements Acquisition in Quick Link Test mode Phase 1 Choice of the best range to display the whole of the fiber under test Phase 2 Choice of the ideal pulse width and of the acquisition time to qualify the fiber accurately for example the one that gives the best resolution for a given dynamic Phase 3 Display of the quality of the connection see Connection
255. the energy of a given wavelength which is split into two polarization layers that are at right angles to each other as User Manual 780000102 19 7 Chapter 1 Principles of measurement PMD principle Method used to measure the PMD shown in the below diagram The main causes of this birefringence are non circularities of the fiber itself and external stress on the fiber macro bending micro bending twist and temperature variations Fig 5 Example of a time delay between two polarization layers The PMD is also referred to as mean value of all Differential Group Delays DGD in picoseconds ps or as the DGD coefficient in ps Vkm The mean DGD causes the transmission pulse to broaden when trans mitted along the fiber generating distortion which in turns increases the bit error rate BER of the optical system The consequence is that the PMD limits the transmission bit rate on a link It is then important to know the PMD values to calculate what are the bit rate limits of the links The method used to measure the PMD is based on the Fixed Analyzer Method which requires a broadband polarized source at one extremity and a polarized variable Optical Spectrum Analyzer OSA at the other Broadband light source SLED Fixed Optical Spectrum Polarizer Analyser OSA extremity Rotatable Polarizer Link under test Fig 6 Fixed Analyzer Method used to measur
256. the optical power and attenuation measurements 178 Power measurement 0 00 e eee eee 178 Attenuation measurements optical link loss 179 Connections to the power meter and the source 180 Configuring the LTS 2 00 0 0 6 60 eee eee es 180 Configuring the measurement parameters of the power meter 180 Configuring the alarm parameters of the power meter 182 Configuring and displaying the parameters of the source 182 Display of results and command 183 Result of the measurement in progress 183 Table of results 22er ovens eer 184 Commands of the power meter parameters 184 Making a measurement lllslsllssn 185 Power measurement 0 000 e eee eee eee 185 Optical link loss 2 0 ee eee 185 FOX FUNCtiON 5 3 0 92 3p EI YILEVIA 186 Configuration of the FOX automatic measurement 186 Acquisition parameters lllslsssllsn 187 Results screen parameters 00 0220005 187 File Storage parameters 00 00 ce eee eee 188 Establishing a reference liliis eee eee 188 Establishing a reference for loss measurement 189 Taking a side by side reference 05 189 Taking the reference in a loop back mode 190 Establishing a reference for an ORL measurement 191 ORL Emitted power 20 0 cc cee eese 191 ORL Zero adjustment
257. the unit selected 3 the spacing between the channels or the offset from the grid in THz or in nm 4 the level of the channel in dBm For 507xxx series and 81xxx series this parameter indicates the peak channel power level For OSA xxx this parameter indicates the calculated total channel power level from the detected channels achieved by mathematical power integration over 7 min channel spacing around the channel center frequency see Min Channel spacing only available in OSA xxx on page 105 This power level may differfrom the peak power level indicated by cursor evaluation in the graphical trace mee NOTE The power integration method is used to avoid wrong channel power measurement with modulated signals having a larger bandwidth than the optical filter resolution bandwidth of the OSA 114 User Manual 780000102 19 Chapter 7 Optical Spectrum Measurement Table of results 5 The noise level in dBm for all modules except OSA 320 and OSA 500R Indicates the noise level measured left and right of the peak of the optical channel out of band noise measurement The noise level is normalized to the selected noise acquisition bandwidth see noise acq Bandwidth setting NOTE The noise level depends on the noise acquisition bandwidth so the noise level may be different to the result in the graphical trace NOTE For OSA 320 and OSA 500R in OSNR measurement mode the noise level is calculated based on the polariza
258. tically be modified according to the configuration Splice Expert mode only All all splices will be detected None no splice will be detected or choose the threshold from which splices will be detected between User Manual 780000102 19 37 Chapter 4 Reflectometry measurements Configuring the reflectometry test 38 0 01 dB and 1 99 dB in steps of 0 01 dB Factory default value Auto Reflectance Expert mode only All all reflections will be detected None no reflection will be detected or choose the threshold from which reflections will be detected between 98 and 11 in steps of 1 dB Factory default value All NOTE If no result is displayed after a measurement make sure that the parameter All is selected for the detection of splices and reflections Ghost Expert mode only Choice Yes No No Analysis of whether information relating to ghosts is to be displayed If ghosts are displayed the reflection icon in the table of results appears dotted and the reflection value is displayed in brackets on the trace for example R 50 dB Factory default value No NOTE Ghosts are detected only during an automatic measurement Fiber end Auto recommended option in which the MTS T BERD 8000 automatically detects the end of a fiber 3 to 20 dB in steps of 1 dB threshold of detection of end of fiber Factory default value Auto Event After Fiber End Expert mode only If yes the e
259. time as uncertainties Modifying Link in Expert mode once trace is displayed you can modify the length of Length fiber 1 Click on Advanced gt Set Link Length A numeric keypad displays with the current link length User Manual 780000102 19 65 Chapter 4 Reflectometry measurements Advanced functions in Expert mode Manual measurements Measurements of 66 slope Ben nt feet 14100009 Mu rr i 0 68148 suoma us Fig 31 Expert mode Link Length Modification 2 Enter the new length of the fiber 3 Validate pushing the Entrer key The modification of the link length will automatically modify the Index of Refraction of the fiber according to this new length value and by consequence will modify the values of the events detected in the results table Answer Yes or No to the message displayed to keep or not this value for the link length for the future acquisitions As soon as you have made an acquisition with or without automatic measurement you can make manual measurements on any event on the trace by means of the cursors A and B in association with the func tions of slope detection of splice and calculation of ORL The manual measurements are accessible in the Results page after pressing the keys Advanced then Manual Measurement To make a manual measurement of slope press the RESULTS button to call up the trace and then Place the cursor A at the beginning of the section
260. tion is saved in the Base Unit and may be retrieved after a complete reboot unless the hardware configuration has changed for example if a new module is inserted Performing the 1 Connect the fiber to test to the MTAU common port sequence Of 2 Click on START STOP to start the sequence tests 3 Amessage is displayed requesting to confirm you wish to start the measurement such as Start SM OTDR measurement Answering No cancels all the sequence but keeps the configuration in memory Answering Yes starts the first measurement 4 After each measurement is done a new message follows if another measurement is configured in the sequence such as in step 3 5 The sequence is terminated when no more message is displayed and the led from the MTAU tab changes from g to Go back to step 1 with a new fiber The order of the sequence will take in consideration the order in which the sequence is displayed on screen starting with the ports order then with the functions order In our example the sequence will measure successively OTDR OSA then PMD Some messages may appear during the sequence to request specific actions necessary for the measurement just like check source appears before a PMD measurement The focus is on the active function and the link becomes green Even though this is not necessary it is possible to go to the measurement corresponding tab when a function is being used and see the results of the acqu
261. tion nulling method indi cating the noise level at the channel transmission wavelength in band noise measurement 6 The optical signal to noise ratio for the channel in dB In WDM mode this parameter indicates the out of band SNR result based on the out of band noise measurement NOTE For OSA 320 and OSA 500R with I OSNR setting this parameter indicates the true I OSNR in band OSNR measured with the polar ization nulling method 7 Theratio between the power of the channel and the composite power in 96 Contents of the table with statistics When selecting the Statistics measurement mode and multiple acquisi tions are performed statistics are calculated on the results To display these results in the table press the Table Contents key then Statistics Different Statistics keys are available to choose the content of the table display for each channel The following statistics can be selected wavelength or frequency statis tics power statistics and SNR statistics The display will give current value average value max value min value and standard deviation or delta between min and max selectable User Manual 780000102 19 115 Chapter 7 Optical Spectrum Measurement Table of results 116 In the mode Statistics Mixed the table will show a mixture of statistical results current min and max of wavelength or frequency and current min and max of the power levels Channel sort The channels
262. tion of the OFI module you have to take references 1 On the RESULTS page push the References button Different references can be taken For a loss measurement Side by Side reference Loopback reference Foran ORL measurement Power emitted reference Zero ORL NOTE As the ORL is an option establishing a reference for this measure ment is not automatically available with the OFI module User Manual 780000102 19 Chapter 11 OFI Module FOX Function Establishing a Before any measurement you must establish references reference for Two methods can be used to take references taking a side by side refer loss measure ence and taking the reference in a loop back mode ment Taking a side by side reference gees NOTE This reference can only be performed when the two Base Unit are at the same location 1 On the RESULTS page push the References key 2 Pushthe Loss Side Side key 3 Linkthe FOX connectors of the two Base Units by using two jumpers 4 Push on Go key Reference date Type and serial number of the distant instrument Humeome Sirs evo Fig 87 Taking a side by side reference 8000 series example Once the references are taken the reference screen is updated for the wavelengths available on the distant instrument It indicates the type of reference used The date of the reference as well as the type and serial number of the distant instrument are indi
263. tly Orreference traces previously saved on floppy disk or CD ROM or in the internal memory for comparison with the current trace or traces of different wavelengths for comparative purposes OTDR 26 User Manual 780000102 19 Overlaying several traces stored in memory Display of traces in overlay Chapter 3 Graphical User Interface Overlay trace function A nn e met 0 43008 SREB RE es bosom Emon PGcoeoote fel Fig 13 Example of overlaid traces To display up to 8 traces from the memory deleting the current trace or traces already loaded N Press the FILE button On the Menu Explorer key select Explorer Select the files of the traces for display see Multiple selection of files page 235 Press the Load key Press View trace s or Load traces config as the traces are loaded they cease to be highlighted in the list of files When loading is complete the Results screen appears the first trace selected is the active trace the other traces being overlaid The traces are shown in different colors the active trace is green Their serial numbers are repeated at the top of the screen The OTDR markers are referenced on the active trace by the symbol l and on the other traces by vertical dashes User Manual 780000102 19 27 Chapter 3 Graphical User Interface Overlay trace function Adding traces in overlay With OTDR traces C 28 Overlaying the urrent trac
264. tors must be specified when ordering each launch fiber module User manual references User manuals for MTS T BERD modules User manual for modules 8100 series French E8100M01 User manual for modules 8100 series English E8100M02 User manual for modules 8100 series German E8100M03 References of optical connectors and adapters Front Panel interchangeable Optical connectors for Multi Reference mode SRL OTDR Universal PC Connector with FC adapter EUNIPCFCMM 276 User Manual 780000102 19 Chapter 17 Options and accessories References of optical connectors and adapters Front Panel interchangeable Optical connectors for Multi mode SRL OTDR nelerence Universal PC Connector with SC adapter EUNIPCSCMM Universal PC Connector with ST adapter EUNIPCSTMM Universal PC Connector with DIN adapter EUNIPCDINMM Front Panel interchangeable Optical Connectors for Single mode OTDR and ODM Modules nelerence Universal PC Connector with FC adapter EUNIPCFC Universal PC Connector with SC adapter EUNIPCSC Universal PC Connector with ST adapter EUNIPCST Universal PC Connector with DIN adapter EUNIPCDIN Universal PC Connector with LC adapter EUNIPCLC Universal APC Connector for SM only with FC adapter EUNIAPCFC Universal APC Connector for SM only with SC adapter EUNIAPCSC Universal APC Connector for SM only with ST adapter EUNIAPCST Universal APC Connector for SM only with DIN ada
265. tus of the last tested fiber The fiber is represented cut and is grayed if the two units are not connected on the same fiber If the two units are connected on the same fiber the link does not appear cut When a measurement is processed the fiber is displayed in red When the fiber connection is established information providing the module type and available wavelengths is displayed for both local and distant units 2 User guide zone A blue banner is displayed in the center of the screen where operation messages are displayed The icon for keeping all events in memory Fa is displayed in this zone if the key Lock Evt Free Evts is set on Lock Evt In this case the following measurement is performed using those markers see Memorization of the position of events page 70 meee NOTE This function keeps markers in memory for both local trace and dis tance trace 3 Measurement status zone When a bi directional measurement has been launched all the different steps in the measurement process are presented in this zone Each one is detailed later in this chapter mmm NOTE The general information banner is displayed at the top of the screen as for all other tabs When a OEO measurement is performed Data 12a and Remote mode ff icons are displayed as soon as a data connection is established 2 requires active data connection User Manual 780000102 19 83 Chapter 6 Bi directional OTDR Performing a bi directional measu
266. txt file is made of two parts User Manual The Header with general information the equipment used and its serial number the date and time of export the location of the file and the number of files exported 780000102 19 241 Chapter 14 File management CD Rom burning MTS T BERD 8000 only The table countaining all the fibers information coming from the files of the active tab Filename Header of the txt file Recall of the Fiber In formation displayed on gt the 8000 Base Unit except alarm status Fig 127 Exemple of a directory exported in a txt file open with Excel CD Rom burning MTS T BERD 8000 only 1 Goto the file explorer 2 Select the directory and or the files to burn on the CD 3 Click on Edit 4 Click on Copy or Cut If you cut the file s to save it to on the CD they will not be on the AN Base Unit anymore 5 Click on CD R tools 242 User Manual 780000102 19 6 Chapter 14 File management CD Rom burning MTS T BERD 8000 only If the CD Rom is a CD RW with data to be erased first click on Erase CD RW otherwise go to step 8 A dialog box request to confirm that you want to erase existing data Click Yes to continue A new message is displayed to inform you that all data is being erased on the CD RW Click on Burn CD or Burn and Close CD according to whether you wish to close the session of your CD or not A new dialog box is displayed asking you to ch
267. ty passing through the fiber in the opposite direc tion to the propagation of the pulse The signal detected is exponentially diminishing in form typical of the phenomenon of backscattering with superimposed peaks due to reflec tions from the ends of the fiber or other variations in the refractive index Attenuation dB Distance km Fig 1 Trace showing typical backscattering From a backscatter trace it is possible in particular to determine the position of a section of fiber within a link The measurement result must reveal the attenuation the location of faults by their distance from a point of origin attenuation with respect to distance dB km the reflectance of a reflective event or a link User Manual 780000102 19 N Validity of Measurement Reflectance Chapter 1 Principles of measurement Principle of reflectometry measurements To locate faults a reflectometer measures only time Consequently group velocity must be introduced in order to determine the distance of the location This is done by introducing the refractive index of the fiber into the instrument UTI T in recommendations G 650 G 651 and G 652 give backscatter measurement as an alternative method for measuring attenuation the method of reference being the cut fiber The field of application of backscatter is not limited but the conditions for application of this method are neverth
268. u User Manual 780000102 19 NOTE Chapter 14 File management File configuration menu The Cable Structure window is specific to an extremity Each struc ture keeps its own parameters by default Modifications made to the one are not automatically applied to the other Thus after the values relating to the origin have been modified it is normal not to find these same values entered for the extremity View extremity Cable Id Color Coding Cable content Fiber If extremities are declared as different see Extremities are different on page 224 this parameter allows to navigate between the Extremity and Origin parameters If the extremities are different you can specify the cable identification for the origin and the extremity Choice of whether or not to apply a color coding to the fiber This choice is made at link level as all the fibers of a given link for a given extremity will be coded the same way This choice modifies the result of the Fiber Code line See Fiber Nbr Increment on page 222 Shows how the color code is to be used see figure Cable structure menu on page 224 Only the color code of the fiber is proposed example Gold Ribbon Fiber The color code of the fiber is preceded by that of the ribbon and separated by a example BI Or lt Tube Fiber gt The color code of the fiber is preceded by that of the tube and separated by a
269. ulate the PMD coefficient Distance Unit When the fiber length is manually entered choose the distance unit Km Distance unit defined in kilometers Kfeet Distance unit defined in kilofeet Miles Distance unit defined in miles Coupling Strong For standard singlemode fibers Weak For polarization maintained fibers and components If the softkey PMD is set to Standard mode any measurement will be set to the strong mode Coupling and the wavelength range to Auto User Manual 780000102 19 Chapter 8 Polarization Mode Dispersion Measurement Performing a PMD measurement with a PMD test module The Expert mode is to be used with measurement through EDFA When selected the Expert mode allows to set the wavelength range Measurement Band Auto C Band L Band C L Band Manual When Manual is selected the Measurement Start and End must be set in nm Results Screen Alarms parameters None No Pass Fail thresholds selected Active Pass Fail analysis will be made upon defined thresholds auto values or delay Auto Values No Threshold values entered manually Yes Threshold values automatically calculated according to the bit rate info selection Bit rate info This table provides the PMD thresholds according to the transmission bit rate Use the direction keys 4 and gt for selection Delay PMD Delay Maximum allowable delay PMD Coeff Maximum allowable PMD coefficient PMD2 Delay Maximum allowable second order P
270. um Measurement EDFA results analysis Min Minimum of wavelength power or SNR Max Maximum of wavelength power or SNR Sdev or Delta standard deviation or delta Min max of wavelength power or SNR All Zoom and Shift functions are available in Drift mode By using the cursor A it is possible to get access to each measured data point The Start value as well as the actual cursor position including the time information is shown in the blue field of the table NOTE If the channel power drifts to a power level below the channel detec tion threshold the measurement will indicate No Signal EDFA results analysis EDFA test configuration EDFA measurements 120 This feature applies only to instruments OSA XXX series The results analysis of an EDFA consists in performing two spectrum analysis one before the signal is amplified and another one after the signal is amplified Both traces are further compared providing the resulting power gain and noise figure To configure the Base Unit in preparation for an EDFA test press the SETUP button In the Measurements section set Type on EDFA Other SETUP parameters are the same for EDFA as for WDM measure ments Refer to OSA optical spectrum analyzer Setup on page 98 for a complete description NOTE If your Base Unit is equipped with an OSA 303 you may use the two ports to test before and after the EDFA In this case make sure you select Port A
271. urements Acquisition in Expert mode Performing an 1 Press the START STOP key to start the acquisition 52 acquisition in Expert mode acquisition The red indicator goes on to show that the MTS T BERD 8000 is in process of acquisition and the screen displays the trace in process of acquisition The quality of the connection is displayed for a few seconds see Connection Quality indicator on page 44 then a bar graph shows elapsed and remaining acquisition time eee A I T0099 CRB 8 06 49 085168 AR 607 50m 0 795A su 4d TDR h Elapsed Numberofaverages Elapsed Remaining Total acquisition acquisition time calculated time acquisition time time Fig 23 Example of acquisition in Expert mode If the parameter Short Acquisition has been defined to Yes in the Setup screen see Short Acquisition on page 36 two acquisition will be performed if one laser is selected At the end of the acquisition the trace is displayed and an automatic measurement is started If one short acquisition has been configureed then 2 traces will be displayed at the end of acquisition NOTE To stop the acquisition the START STOP key may be pressed at any time Then an automatic measurement is carried out but some events cannot be detected a manual measurement must then be made Multi wavelength If the module possesses several lasers to perform successive acquisi tions on all the wavelengths inthe SETUP menu check in Las
272. ut off to save the battery Client specific option Fiber identification box TR management for Verizon MTS T BERD 6000 only The TR box allows to automatically identify the number of the end of fiber If this number is not the same as the fiber detected the user will be advised of this incoherence User Manual 780000102 19 Chapter 4 Reflectometry measurements Acquisition in Real Time mode Acquisition in Real Time mode Principle of Acquisition in real time must not be used if a precise measurement is Real Time mode eauired because of the high noise level but it is sufficient for rapid opti mization of a connection and for observing a fiber in process of utilization Performing an To carry out an acquisition in real time after selection of the requisite acquisition in acquisition parameters see Acquisition parameters on page 33 Real Time mode Hold the START key down for about two seconds to launch the acquisition in real time whatever is the Acquisition mode selected in the Setup menu orchoose the Real time mode of acquisition in the SETUP menu then press the START STOP key The red Testing indicator will go on to show that real time acquisition is in progress The trace acquired is displayed in real time An indicator of the state of the connection Good Bad is displayed below the trace mE NOTE If the connection is bad check and clean the connector jumpers Real time display Once START STOP key is p
273. vents after the end of the link are detected Factory default value No Total Loss Expert mode only Before evt for a given line on table the total loss result does not include the splice connector loss of the corresponding line After evt on the table for a given line the total loss measure ment on the table does include the splice connector loss of the corresponding line Bend Select the bend value in dB using the direction keys 4 and gt or the numeric keypad User Manual 780000102 19 Chapter 4 Reflectometry measurements Configuring the reflectometry test With any dual or triple wavelength measurement module the user will have access to the macro bend detection function in the test setup Each event of the selected wavelengths will then be compared Factory default value Auto Index of refraction Choice of group refraction index of the whole fiber User Either define for each wavelength 1310 SM 1360 1510 SM 1550 SM 1625 SM a refraction index of 1 30000 to 1 69999 The selection of an index alters the value of the section AB actual distance between cursors A and B mmm NOTE With the CWDM Module the selection is as follows Forlasers 1271 1291 1311 1331 and 1351 select the line 1310 SM Forlasers 1371 to 1511 select the line 1360 1510 SM Forlasers 1531 1551 and 1571 select the line 1550 SM Forlasers 1591 and 1611 select the line 1625 SM or
274. ween the backscattered level extrapolated at the origin of fiber and the RMS noise level after 3 minutes of averaging with the largest pulsewidth 3 EDZ measured at 1 5 dB below the peak of a non saturated reflecting event at shortest pulsewidth A Guaranteed up to 40 km including Chromatic Dispersion of the Laser 5 ADZ measured at 0 5 dB on the basis of a linear regression from a reflectance type FC UPC 55 dB at short est pulsewidth Singlemode CWDM modules 81xxCWDM 81xxCWDM 1551 5 nm 1471 5 nm 1571 5 nm 1491 5 nm 1 Central Wavelength 1591 5 nm 1511 5 nm 1611 5 nm 1531 5 nm 39 dB 39 dB 39 dB 39 dB Min IEC Dynamic Range 39 dB 39 dB 39 dB 39 dB 42dB 42dB 42dB 42dB 2 RMS Dynamic Range 42dB 42dB 42dB 42dB Distance Range up to 380 km Pulse width 3ns to 20 us Event Dead Zone 0 8 m Attenuation Dead Zone 4m Laser safety Class 21 CFR Class 1 Continuous Wave Output Power 3 5 dBm User Manual 780000102 19 257 Chapter 16 Technical specifications OTDR Modules Singlemode CWDM modules 81xxCWDM 81xxCWDM Modulated wave output power Auto 270 330 1 kHz 2 kHz 6 5 dBm 1 Guaranteed with laser at 10 us 2 Value corresponding to the difference in dB between the level of back diffusion extrapolated at the beginning of fiber and the RMS noise level after 3 minutes of averaging with the largest pulsewidth 3 EDZ measured at 1 5 d
275. with class IIIb sources by 21 CFR 1040 10 USA The BBS module is equipped with a remote interlock connector SMB type on the front pannel This is aimed to protect the user from injury when using class IIIb light sources User Manual 780000102 19 215 Chapter 13 Broadband source BBS Remote interlock connector If the short circuit at the SMB connector is opened the broadband light source is switched off immediately and cannot be switched on until it is closed again Remote interlock connector Fig 112 Remote interlock connector 216 User Manual 780000102 19 File management The topics discussed in this chapter are as follows File configuration menu on page 218 Explorer Function on page 229 Link Manager Function on page 239 CD Rom burning MTS T BERD 8000 only on page 242 can be loaded and traces can be displayed or saved even when In System gt Standalone Results gt Consult Fiber Optics the files N no module is set into the Base Unit User Manual 780000102 19 217 Chapter 14 File management File configuration menu File configuration menu Managing tabs 218 This menu is used to configure various parameters common to the whole of a cable Press the FILE button The following File menu appears te101550 nmausot H5 nm Gus te 16 30 6DR 5m fos IOR 1 47000 r ooPf 004 1143 John doethjdsu com blabta Filenaming test Fibe
276. x Name of the file 1310nm 10ns 72 374 HD 7 10ns 1310 10ns SOBACD 64cm 10 03 IOR 1 36500 1 BI kkkkk O F 18 12004 1651 Extremity infOpirection of ate of the acquisition measurement Ofthe signal Fig 114 Example of signature of an OTDR file in the File Menu File information Current directory The Dir line of the menu shows the directory in which the traces will be stored This line can also be used to change the active storage medium direc tory To do this launch the directory editor by means of the key gt The directory edited must exist otherwise it will not be taken into account Change of medium and the creation and or dele Ex tion of directories can only be done through the file explorer or link manager see Explorer Function on page 229 or Link Manager Function on page 239 but not necessarily in the FILE menu The FILE menu is used to edit parameters for the current or next acquisition or to modify the signa ture of a stored trace only When recalling a trace fiber parameters are shown in the signature Rules for naming In the name of the file it is possible to program automatic inclusion of files parameters such as the name of the fiber fiber code identifiers of the cable its origin its end or the measurement parameters direction reso lution wavelength pulse length User Manual 780000102 19 219 Chapter 14 File management File configuration menu The lt Filenaming gt line shows th
277. xxSRL Central Wavelength 850 1300 850 1300 1310 1550 1 925 2 20nm 20nm 20nm 20nm 20nm oe e Rond Class 1M Class Class 1M Class 1 Class 1M Laser Classes FDA21CFR 1040 10 Class 1 Class 1M Min IEC Dynamic Range 20 dB 18 dB 20 dB 18dB 36 33 5 33 5 dB RMS Dynamic Range 25 dB 23 dB 24 dB 24 dB 41 409 39 dB Distance Range Up to 80 km Up to 80 km Up to 380 km Pulse width 3 ns to 200 ns 3 ns to 300 ns 3 ns to 20 us Event Dead Zone 15m 0 5m 0 8m Attenuation dead zone 5m 2m 4m Continuous Wave Output Power 3 5 dBm BWORN Guaranteed with laser at 50 ns 10 nm at 1625 nm Guaranteed with laser at 10 us Guaranteed value corresponding to the one way difference in dB between the backscattered level extrapolated at the origin of the fiber and the level containing 9896 of noise after 3 minutes of averag ing with the largest pulsewidth according to IEC 61749 standard Value corresponding to the difference in dB between the backscattered level extrapolated at the ori gin of the fiber and the RMS noise level after 3 minutes of averaging with the largest pulsewidth In single wavelength configuration Measured at 1 5 dB below the peak of a non saturated reflecting event with the shortest pulsewidth Measured at 0 5 dB on the basis of a linear regression from a reflectance of type FC UPC with the shortest pulsewidth Not available for E8156SRL User M
278. yed into the File menus of the other appli cations managed by the base appearing in the other tabs 228 User Manual 780000102 19 Chapter 14 File management Explorer Function Explorer Function e Setup O9 Explorer Link Mgr Fig 121 Setup Explorer To access the Explorer function after pressing the FILE button press the Setup Explorer Link Mgr key Description Of The explorer is used to select the storage medium and to create or the explorer rename directories and files The left hand part presents the storage architecture Use the keys A and W to move around among all the media and their respective directories The right hand part displays all the files present in the directory selected The direction keys can be used to move horizontally between the two parts and vertically within each zone At the top of the screen the file signature selected is repeated see Example of signature of an OTDR file in the File Menu on page 219 User Manual 780000102 19 229 Chapter 14 File management Explorer Function Storage media Storage media built into the Base Unit External USB storage media 230 JE NEN UM EM SOXADA tam Hs IOR 1 47009 UL MEMLR Directory 8 Ebert B Demo Curves B GROOM Measures Sarre cane 12208 tin ue 12a 06 19046 ra 11 c GUN 1a ae B scope ten ue 152220 E test Conde vate B Tes mue crac B ecco ove woo mu root moe 4000 14
279. z 2 kHz CW continuous emission Auto 76 User Manual 780000102 19 Bi directional OTDR This chapter describes the different steps to perform an automatic bi directional measurement also called OEO measurement Origin End Origin This measurement requires that two 8000 Base Units are connected at each extremity of the fiber under test Every Base Unit must be equipped with the software option called OEO OTDR and with both optical talkset and OTDR plug in It is strongly recommended that the same type of OTDR is used N same reference at each extremity of the fiber The topics discussed in this chapter are as follows Definition of terms used on page 78 Description of the measurement on page 78 Configuration of bi directional measurement on page 80 Performing a bi directional measurement on page 82 Trace display functions on page 87 OEO Result table on page 89 Automatic measurement and Addition of markers in OEO page on page 90 File management on page 90 Test of a cable on page 91 Troubleshooting on page 92 User Manual 780000102 19 7T Chapter 6 Bi directional OTDR Definition of terms used Definition of terms used Master Slave unit The master unit is the Base Unit that initiates the measurement at one extremity of the fiber The slave unit is the Base Unit connected on the other extremity of the fiber and connecte

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