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ORIENTEK TR600 OTDR

1. When used together with Shift it can realize longitudinal amplifying and reducing of contract displaying trace q4 p Lefvnght buttons Q realize A B rod left move or move to the right in the trace display window Choose the selected character in the keyboard Inthe Settings menu realize the choice of different page when focus in column page i e Parameter Setting File Setting System Setting in the folder tree structure window expand or fold the sub tree e When used together with Shift it can realize transversal amplifying and reducing of contract displaying trace Esc Escape button Q Back to upper operation page A B A B scale plates switching button main function of the button On the home page of OTDR function module it can realize mutual switching of scale plates A and B in the trace graph area When used together with Shift it can realize scale plate A or B in the trace graph switching to the next event position Shift Shift function button On the home page of OTDR function module it can realize all trace displaying in the l trace graph area In the menu dialog box it serves as a Tab switching key role that is the function switch under each menu in the dialog box On the home page of OTDR function module the button used together with button A can realize in the OTDR home page event parameters fiber link AB cursor of the information window cycle switch display function
2. i Ci ORIENTEK ORIENTEK TR600 OTDR Optical Time Domain Reflectometer USER MANUAL Fast Operation Instruction for Using Buttons A Home page button Q Escape from the current page and back to the home page directly he button used together with button A can realize in the OTDR home page event parameters fiber link AB cursor of the information window cycle switch display function R S Measure Stop Button n the home page interface use the buttons directly into the OTDR interface to start the test to achieve a key test operation On the home page of OTDR function module press this button to start measuring during measuring process press this button to stop measuring On the home page of OTDR function module When used together with Shift can be realized between the average and real time measurement mode toggle selection Enter Confirmation button On the main interface it can realize the function of icon selection confirmation when conducting menu operation pressing the button indicates that the current operation comes into effect On the keyboard or drop down list confirm corresponding character and data Qe in the menu dialog box identify the current operation effect a V JUp down buttons Q Select the desired menu icon On the keyboard or drop down list select the corresponding characters or data in the folder tree structure window realize the tree node is moved up or down
3. 4 Dynamic range measured when there is filter 5 Dynamic range measured when there is no filter 56 JU Contact Information Nanjing Orientek Optical Communication Limited Add RedSun Building North Bridge Road Nanjing China Call us 86 25 8687 0598 Fax us 86 25 8687 0599 e mail Sales OrientekFiber com Sales njorientek com Website www OrientekFiber com www njorientek com
4. 30 km Pulsewidth 160 ns Open AvgTime 155 MeaType Average IOR 1 4685 Lengthinit Meter Scat Coef Auto ReflThre Auto NRefl Thre auto End Thra 5 00 dB DefaultSetting race lock Help Con State Avg Mode VFL OFF Fig 7 10 Interface Diagram of Menu Set 7 2 1 Parameter Setting MeaPara Set FilPara Set SysPara Set WayeLen NMF 850nm 1300nm SMF 1310nm 1550nm pom SMF 0 1490mm L 1625nm Range so km PulseWidth 150 ns m AvgTIMe 1155 MeaType Average r IOR 1 4685 Lengthunit Meter Scat Coef Auto Ref Thre Auto HRe Thre uto End Thre 5 00 DefaultSetting Cancel Fig 7 11 Interface Diagram of Menu Parameter Setting laser wavelength Distance scope pulse width duration of measurement measurement model refractivity non reflection threshold and bundling threshold that provided by parameter setting are optional Length unit back scattering coefficient and reflection threshold are designated Laser wavelength selected by user it provides several options wave length of multimode 22 fiber 850nm 1300nm wave length of single mode fiber 1310nm 1550nm wavelength of single mode fiber of PON network 1490nm 1625nm According to the differences of models users can simultaneously select 3 wavelengths at most to measure This kind of measurement model is called multi wavelength measurement model Under multi
5. 8 3 Instruction of Menu Bar Window of PC Terminal Software of OTDR Menu bar window of PC terminal software of OTDR Traces Manager includes 5 menu options file editing view help and language File Edit View Help Fig 8 2 Interface Diagram of Menu Bar Window of PC Terminal Software of OTDR 8 3 1 Instruction of Menu File The menu File is shown as Fig 8 3 Functions can be realized in the menu file include open close trace file save save as the current curve save all curves print the option print print preview batch modifying batch print multi traces print on single page display and print multi traces escape the application software OIDR Traces Hanger E OIDR Trace 1310_20121023_154 sor IEEE Edit View Help Open the file tCtrl 0 Close the file Close all files Save all traces v Multi traces displaying Save the current trace As E Print Options PENN scd i Mii 1310 20121023 150 sor Print tCtrl4P Wl 1310 20121023 151 sor Pri i i i i m3 1310_20121023_152 sor rint Preview i i i i Print setting m4 1310 20121023 153 sor 1310_20121023_154 sor B m Mic 1310 20121023 155 sor atch modifying x L Measurement parameter Distance scope 60000 m Pulse width 640 ns Display and print multi traces Laser wavelength 1310 nm l Refractivity 1 4666 Duration of test 30 s Back Scat Coef Auto Batch pr
6. Under the condition of normal using We recommends recalibrating the equipment every three years Equipment calibration work needs to be conducted in manufacturer s factory 5 9 5 Service and Guarantee 9 5 1 General Information We promises to maintain the defects of OTDR caused by material or technology within one year since the original delivery date We meanwhile promises that the equipment complies with the applicable regulations under normal using status Within the guarantee period We has right to maintain or change any products with problems this regulation also suitable for checking or adjusting the products waiting for maintenance or re checking or re adjusting the products wrongly calibrated before Beyond the guarantee period if the equipment needs to repair in the manufacturer s place We will charge a certain maintenance fee This guarantee declaration will replace the former clearly stated implicated and legal guarantee declarations including but not limited to implicated guarantee declaration about goods marketability and adaptability regarding special usage Under any conditions We won tundertake the responsibilities for damages caused by special troubles or accidents Key prompt Any the following situation happens guarantee is invalid e Equipment damage caused from maintenance or treatment by unauthorized personnel or non our technicians e Anti dismounting labels are torn up e Serial number of the equipment is m
7. print page setting 2 waveform page 4 waveform page 6 waveform page or 8 waveform page needs to be selected firstly Each page setting corresponds to different formats In addition under the print mode the first selected trace file i e the uppermost one is defined as the master file The trace information on each page of the printed file should conform to that of the master file ulti traces printed on single page Folder Select files selected files ES 1310 20121012 075 sor 1310 20121013 075 sor All Users 1310 20121023 150 sor 1310 20121023 151 sor Default User 1310 20121023 152 sor 1310 20121023 153 sor 1310 20121023 154 sor NebuorkService 1310 20121023 155 sor 1310 20121024 150 sor 1550 20121012 058 sor 1550 20121013 058 sor 1550 20121023 149 sor 1550 20121024 149 sor 4 lll LocalService Add files Remove files Please click the folder to add the following data files in the folder Add all files Remove all files Cable number Testing Pos Test date 2012 10 23 15 03 37 Laser wavelength 1310 nm Pulse width 640 ns Distance scope 60000 m Duration of test 30s Chain length 35668 m Chain loss 11 143 dB Chain Attn 0 314 dB km Fig 8 9 Interface Diagram of Dialog Box Multi Traces Print on Single Page 42 c Display and print multi traces The print mode only allows print of trace files less than 3 under the same folder Select files according to the order 1 2 and 3 When pr
8. 3 3 Instruction of Buttons on the Instrument sana asa asa saa saa asa asa asa sana ssa 10 4 Invoduecton to mome PageorOTDR si as g bd ol Eb DE EE EH ses i BA bu 12 5 Inmoduelotrito Oberauon Ob WE Esci haha bero ree rere ee tere cea eee eben Pme 13 Sa lauzel Cen erqi k OB ERR RN TNR ERR 14 amp IMessunng Purpose or OTDR sc lection emeret A eim E etras dm betta deret artes 14 o I lMeasunbg Contents or Ol DR aeta tte ted ie ie eu eae E p DL elit 14 6 1 2 OTDR CUVEANaVSIS t as EEUU 14 SPART mA PINE ce M OTOR 2 NR RO 14 6 3 Instruction of Events CategorieS eaaavaaaaa asa sana saa saa saa sanda eniin entre eaten einen 15 6 3 E Initia Ee VIN uu ie i b EE Eon Lie be b da api ala dj dieses a EL 15 0 32 ENT EV os siat titu etenim tene a nlo prasad fo tu bna temufposut i lola doti ae cutee 15 6 3 elec UO E A ee ne ne ne te estatuto ctetu A A ee tatu 15 6 34 Nor rellecgon E VOLI eod a ae dae i a edet Oei bn ten o O E EUM E C d RE 16 6 3 5 Event TSC CUO Mec caso o o LOI Kee o M n T Mel CIT DOM LAT A ESA MM eae 16 7 IAUOGUCHON O Opern OTOR idtm ite oti dt m Diete m Mec hate o edt catus qu a 17 7 1 Instruction of Home Page Screen of OTDR sssssssssseeee eee eee eene eene ener eene n 17 7 1 1 Instruction of Trace graph Area on the Main Interface of OTDR sseeeH 18 7 1 2 Instruction of Trace Operation Button Area on the Main Interface of OTDR 18 7 1 3 Instruction of Info Wi
9. optoelectronic integrated instrument made according to back scattering that generated from Rayleigh scattering and Fresnel reflection when lights are transmitted in the optical fiber It is widely used in the maintenance construction and monitoring of cable line It can measure the optical fiber length transmission attenuation of optical fiber attenuation of splice and failure location etc When the pulse being transmitted downwards along with the optical fiber and some small changes such as changes of refractivity and discontinuity in the material make the lights scatter to different directions Rayleigh scattering occurs Partial lights are scattered back along with the direction that opposite to pulse therefore it is called Rayleigh back scattering Back scattering light shows attenuation details that related to the length Information related to length is gained through time i e origin of domain of Optical Time Domain Reflectometer These back scattering signal indicates the attenuation loss distance degree caused by optical fiber The curve formed is a downwards curve which reflects the transmission characteristics of the optical fiber When lights transmitted downwards along with the optical fiber encountering sudden change of material density Fresnel reflection occurs Material density change may occur at the connection or fracture parts where air gap existed This phenomenon is used by OTDR to accurately confirm the position of d
10. 20121023 151 sor 1310 20121023 152 sor 1310 20121023 153 sor 1310 20121023 154 sor 1310 20121023 155 sor Measurement parameter Distance scope 60000 m Pulse width 640 ns Laser wavelength 1310 nm Refractivity 1 4666 Duration of test 30 s Back Scat Coef Auto Measurement result Pos of A 9689 m Cuml Loss of A 3 052 dB Echo loss of A 45 077 dB Ins L of A 0 000 dB Dis between AB 10979 m i i i i Loss between AB 3 463 dB DB MIN lt i i i i i i i Attn between AB 0 315 dB km LSA loss between AB 3 433 dB 2m 6336 m div 63366 m LSA attn between AB 0 313 dB km Fig 8 15 Interface Diagram of Traces Window 8 5 1 Displaying Area of Trace graph Select open function to realize displaying of trace file in the trace graph area as shown in Fig 8 16 The lateral axis represents the distance unit m while the vertical axis represents the back scattering power Unit dB The 11 icon buttons in the right of trace graph area represent the operation icon buttons of trace When move the mouse onto these icons they will display the functional characters of the icons Meanwhile these 11 icon buttons conform to that of the instrument terminal Moving from left to right of AB lines scale plate in the trace graph can be realized by sliding the mouse il Traces windor 0 000 DB MIN 2m 6336 m div Fig 8 16 Schematic Diagram of the Displaying Area of Trace Graph 47 8 5 2 Displaying Area of List of M
11. 6 Info Window of Scale Plate Data displayed in the event list include serial number category position plug in loss attenuation coefficient echo loss and accumulate loss Serial number indicates the information of the nth event that currently displayed on the trace graph Category indicates the event category of the event point Position indicates the distance from the initial point of the optical fiber to the event point Plug inloss indicates the quantity of plug in loss of the event Attenuation coefficient indicates the attenuation characteristics of the optical fiber from the last event point to the current event point Echoloss reflect the reflection value of the event point Accumulateloss indicates the loss value of optical fiber from the initial point to the current event point Contents of information of event list are shown in Fig 7 7 The event point data and event section data are separately displayed in the event list Serial number of event only numbers the event points Event category displays the following information by picture initial event optical fiber section reflection event non reflection event and end event Corresponding pictures of event category are shown in Fig 7 8 When looking over information of event list click the icon event through the touch screen then the information of event list can be found in the info window S 45 077 0 000 42 011 204 Fig 7 7 Info wind
12. Button Multi traces Setting Click the button icon multi traces setting in the multi waveform analysis dialog box multi traces setting will eject By clicking the icon browse to realize the function displaying several traces 4 traces can be displayed at most in the trace graph area furthermore these traces can choose the files under any folder The opened traces are distinguished through different colors Color setting interface for users aren t provided For the opened traces the one with smallest serial number is the current trace The current trace is blue while the other traces are grey 31 MultiTraceSet Trace1 FileName SDMEM Data41550_1015_133 sor Trace File Mare Traces FileName SOMEM Datan 1310 1015 132 sor Traces File Marne Fig 7 19 Interface Diagram of Menu Multi traces Setting 7 7 2 Instruction of Button Trace 1 2 3 4 Button icons in the trace operation area are valid to all opened traces simultaneously Current trace can be switched through the trace switching button or through clicking trace 1 or trace 2 trace3 trace 4 directly The data in the info window is that of the current trace 7 7 3 Instruction of Button Remove The current trace can be removed The trace can be removed from the displayed window through trace remove operation The remove operation is only valid for the current trace After remove the current trace the next smallest SN trace will be adjusted to be th
13. Move upwards indicates upward movement of measured trace 18 Move downwards indicates downward movement of measured trace Longitudinal reset indicates longitudinal reset of measured trace When measuring except for the stop icon functions of the other icons in the icon tool bar for trace operation are forbidden 7 1 3 Instruction of Info Window Area of the Main Interface of OTDR Contents of info window include measurement parameter event list scale plate A B and analyzed parameter etc Measurement parameter includes laser wavelength distance scope pulse width refractivity back scattering coefficient reflection threshold bundling threshold non reflection threshold and duration of measurement The definition and setting are shown in When looking over these parameters click the icon parameter through the touch screen and then the parameter information can be found in the info window Contents of parameters are shown in Fig 4 set menu Wavelength 1310 nm Range Pulsewridth 640 ns IOR Scat coef Auto Refl Thre End Thre 5 00 MRefl Thre Avg Time 3L s Fig 4 Info Window of Measured Parameter Optical fiber link information includes file name measurement date measurement time link length link loss link attenuation coefficient and quantity of event Definition and setting of file name duration of measurement and measurement date are shown in set menu When looking over inf
14. Trace Locking of OTDR sssssseeee nennen 33 7 9 Instruction of Menu Button Help of OTDR aaaaaaaaa aaa sa aaa saa sana asa saa saa kaaa sana asa sana sana 34 7 10 Instruction of Menu Button Home Page of OTDR vaaavaaaaa asa asa sana sana sana asa asa aaa sana sana sana 34 S lnsaucion or PC Temnal 56tware oFrOTDR iiit e bn ani oi AA 35 8 1 Installation of PC Terminal Software of OTDR aaaavaaa savana ssa asa asa aaa sana sana asa asa sana sana nnns 35 8 1 1 Requirements to the Installation Environment sees 35 90 1 2 Software Installation SUSpDS esee te io t etri te ree eee ER petere Eae i eh ee Uc te tege ee e ad 35 8 1 3 Screen Resolution Ration Setting oak aaa aaa aaa aaa nana naca nno 35 8 2 Instruction of Interface of PC Terminal Software of OTDR sese 36 8 3 Instruction of Menu Bar Window of PC Terminal Software of OTDR sse 37 o3 LIpnsguedonder MENU FIE ee ema ooo tone Pesos Deco cte ocio Dcus psi sije se 37 8 32 Insmueuornr eorMerni S EGG iscsccact uocat seats oreet ee ui ao doe ae tuae do dee tate a Ed det a drag toe 44 0 3 3 Insmucuomn or MENUS VIEW sarare tie SES EGER DIO SSA 45 Ge SA INSUUCUOMOF Menu Help o etae teet e e o a aces bee ovata RE Leone tL Lu OE 46 8 4 Instruction of PC Terminal Software Toolbar Window of OTDR sees 46 8 5 Instruction of PC Terminal Software Traces Window
15. installation steps are as follows e Start up Windows operation system e Escape other running application program e Plug the attached disk into the CD driver select and enter the folder of curve processing software OTDR Traces Manager e Dbliclick the OTDR Traces Manager EXE to enter the installation program e Install according to the prompt of installation guide unit completed 8 1 3 Screen Resolution Ration Setting For 4 3 screens we recommend setting it to be 1024 768 for 16 9 screens we recommend setting it to be 1360 768 35 8 2 Instruction of Interface of PC Terminal Software of OTDR Main interface of PC terminal software of OTDR is composed of the following several parts menu bar window toolbar window waveform window including trace graph multi waveform displaying file list measurement parameter measurement result event list window the whole waveform window as well as the status bar at the bottom of the window 36 3 Mub trces dspayng A B Ne Fie name 4 Bh 130 20121012 0754 TM Bo 131020121023 150r 3 1550 20121012 058 50 ni Bl 1550 20121023 149 507 A5 0 Echo SA 2 m Echo Lossio Ins L cB Attn Byien Cumi e8 Note 4 Weco 25328 7 978 0 315 2 te Event 326 0 306 C Meru Window QM Toolbar Window M Tracestlindo Event List Window Q irole Waveform Window Status Window Fig 8 1 Main Interface Diagram of PC Terminal Software of OTDR
16. time measurement mode toggle selection In selecting the corresponding measurement mode then through the measurement stop button can be realized in the corresponding measurement mode measurement 7 032 km Div 6 00 dB Div Seal Fie MGT m M DOD A31 14 052 21 095 285 124 35 194 42 185 48 zlo 556 247 km ni qt Ta T 3 B rm i ka V zom m XH Hameo Lliwew ABlwE Tree cmtich Dos Reset FF Trace lock File SDMEMS Files 41310 20121023 150 sor event i a Late 2012 10 25 Time 15 03 37 EN Length 35668 06 m Loss 11 193 dB d Help Total Attn 0 314 dB km Event Wum 3 Con State Avg Mode VFL OFF 26 Late Length Total Attn Event Wum Con State Bad Ag Made 155 Analyzing please wait Fig 7 14 Interface Diagram of Measurement Stop Menu 7 4 Instruction of Menu Button Saving of OTDR After entering interface of OTDR click the button icon saving Saving dialog box will eject and the data information of the current trace will be saved The saving format can be set in the file setting under the set menu The instrument provides Bellcore data format sor When saving the trace from multi wavelength measurement if the status in file setting is auto saving the multi wavelength measurement will automatically save the trace files according to the setting rules of auto naming and the quantity of files saved is the same as the quantity of wavelength me
17. 023 15 sor Late 2012 10 23 Time 15 03 37 Length 35668 06 m Loss 11 193 dB Total Attn 0 314 dB km Event Mum 3 Con State Bad Avg Mode 15s Measurement completed VFL OFF 4 Fig 7 21 Interface Diagram of Menu Trace Locking ON 7 9 Instruction of Menu Button Help of OTDR After clicking the button helo the table of contents will eject Contents looked over can be selected according the table of contents 7 10 Instruction of Menu Button Home Page of OTDR Click the button home page to go back to the home page interface of the instrument 34 8 Instruction of PC Terminal Software of OTDR The name of PC terminal software corresponding to OTDR is OTDR Traces Manager The software is dedicated software for OTDR that developed by us The trace files generated from measurement of OTDR can be opened through the software It can provide user with convenient data management function These functions include maintenance browse saving copying and printing of the tested data 8 1 Installation of PC Terminal Software of OTDR 8 1 1 Requirements to the Installation Environment The system configuration of the required installation environment of OTDR Traces Manager is as follows e Pentium 3 or Pentium 4 or private computer with similar configuration e Microsoft Windows98 2000 XP 7 operation system e Available space of hardware is larger than 40M e CD ROM larger than 8 speed 8 1 2 Software Installation Steps The
18. 4 p Lefvnght buttons Q realize A B rod left move or move to the right in the trace display window Choose the selected character in the keyboard Inthe Settings menu realize the choice of different page when focus in column page i e Parameter Setting File Setting System Setting nthe folder tree structure window expand or fold the sub tree When used together with Shift it can realize transversal amplifying and reducing of contract displaying trace Esc Escape button Q Back to upper operation page A B A B scale plates switching button main function of the button On the home page of OTDR function module it can realize mutual switching of scale plates A and B in the trace graph area When used together with Shift it can realize scale plate A or B in the trace graph switching to the next event position Shift Shift function button On the home page of OTDR function module it can realize all trace displaying in the trace graph area In the menu dialog box it serves as a Tab switching key role that is the function switch under each menu in the dialog box On the home page of OTDR function module the button used together with button A can realize in the OTDR home page event parameters fiber link AB cursor of the information window cycle switch display function On the home page of OTDR function module the button used together with buttons A V can realize combination functions of lon
19. Its default value option is trace information sign post in trace graph parameter information and event list The format of dialog box is as shown in Fig 8 6 Print Options Trace information Trace diagram Mesh End Threshold line Mark of event point Thumbnail Measurement parameter Optical fiber link Event list Fig 8 6 Interface Diagram of Dialog Box Print Option 39 4 Batch Modifying Batch modifying only allows batch modifying of information in trace file under the same file folder as shown in Fig 8 7 Hatch kerise E3l Folder Select files selected file 1310 20121012 075 sor 1310 20121013 075 sor 1310 20121023 150 sor 1310 20121023 151 sor 1310 20121023 152 sor 1310 20121023 153 sor 1310 20121023 154 sor LJ Nob Een 1310 20121023 155 sor 1310 20121024 150 sor Intel 1550 20121012 058 sor 1550 20121013 58 sor 1550 20121023 148 sor lt ll gt Add all files Remove all files Please click the folder to add the following data files in the folder Select information L Optical fiber numl the _ core total I rmm Fiber type Regular single mode optical fiber r Testing Pos End Pos of optical fiber Lenath of cable a Testing equipment a Operator Project title L Company name Fig 8 7 Interface Diagram of Dialog Box Batch Modifying 40 5 print mode of trace file under the same fo
20. L dB Hate start Event 45 077 DM 0000 Fiber section 25326 7 978 0 315 d Ref Event 25326 42 611 0 016 8 004 Fiber section 10341 3 185 0 308 3 End Event 35668 15 258 11 133 Fig 8 20 Interface Diagram of Event List Window 8 7 Instruction of the Whole Waveform Window of PC Terminal Software of OTDR The whole waveform window displays the thumbnail of the measured trace as shown in Fig 8 21 i Whole waveform Fig 8 21 Interface Diagram of the Whole Waveform Window 8 8 Instruction of the Status Bar Window of PC Terminal Software of OTDR Status bar window is at the bottom of the main interface of PC terminal software and displays the currently selected menu or operation prompts of the toolbar as shown in Fig 8 22 The status bar is the outline of the current menu operation or the functions of toolbar Through the information in the status bar users can simply comprehend the current operation A Fig 8 22 Interface Diagram of Status Bar Window 49 9 OTDR Products Maintenance and Service 9 1 Operation Note of OTDR Product e Always clean the connector of the optical interface before using e Avoid the equipment being contaminated by dust e Please clean the shell and the front panel with slightly wet cotton cloth e Store the equipment in clean and dry places under room temperature and keep it away trom sunlight When using control the humidity at a lower level and avoid significant temper
21. On the home page of OTDR function module the button used together with buttons A V can realize combination functions of longitudinal amplifying and reducing of trace On the home page of OTDR function module the button used together with buttons lt q gt can realize combination functions of transversal amplifying and reducing of trace On the home page of OTDR function module the button used together with button x can realize the fast switching options between the average and real time measurement mode On the home page of OTDR function module the button used together with button A B can realize scale plate A or B in the trace graph switching to the next event position When using the shift key combination function please press the Shift button then press the combination of keys function realization first release the key combination then release the Shift key D Button for power supply lurn on and turn off the power of instrument Need to press and hold for 2 3 seconds until the power light reaction can let go Contents TE ODVRONE MIO AAA s 186 6 NERONE RR 5 Pe csi MIO NEKOM sao EET 6 3 Appearance Diagram of OTDR Product nana nana naaoaaaaaoaa nanosa nana avansno ananasa nns aside a sias nana anna nnacao 8 3 1 Introduction to Electrical Interface of Instrument ooaaaaa saka asa sasa nennen 9 3 2 Instruction of Optical Interface of Instrument eee asa sana sana 9
22. Pos of A 9689 m Cuml Loss of A 3 052 dB Echo loss of A 45 077 dB Ins L of A 0 000 dB Dis between AB 10979 m i l j Loss between AB 3 463 dB DB MIN lt i i TE i i i i Attn between AB 0 315 dB km LSA loss between AB 3 433 dB 2m 6336 m div 63366 m LSA attn between AB 0 313 dB km MB Event list e mj Whole waveform Event type Echo Loss dB Ins L dB Attn dB km Cum L dB Note Start Event 0 45 077 0 000 Fiber section 7 978 0 315 Ref Event 42 611 0 016 8 004 Fiber section 3 185 0 308 End Event 15 258 gt 11 193 Fig 8 13 Interface Diagram of Menu Help 8 4 Instruction of PC Terminal Software Toolbar Window of OTDR Fig 8 14 Interface Diagram of Toolbar Window The toolbar window is under the menu bar window The purpose of toolbar window is to make the main functions under the menu file realize fast operation when moving the mouse onto the icons on the toolbar window they will display the functional characters of the icons displaying concealing of toolbar window can be switched through clicking toolbar option in the menu view 46 8 5 Instruction of PC Terminal Software Traces Window of OTDR Waveform window is divided into 4 displaying areas trace graph list of multi waveform displaying file measurement parameter and measurement result as shown in Fig 8 15 L Traces window Multi traces displaying File name 1310 20121023 150 sor 1310
23. Stop of OTDR After entering interface of OTDR click the button icon measurement Firstly it will inspect whether there is light in the optical fiber then it will inspect the connection status of instrument and the connector of optical fiber that waiting to measure After the above two inspections finishing it begins OTDR measurement The measurement model should correspond to the measurement model option in the parameter setting The inspection for checking whether there is light in the optical fiber is to inspect the communication light in the optical fiber line if there is light on consideration of protecting the instrument and communication equipment the measurement should be terminated and warning prompt should be given Prompt mode warning dialog box ejects The accuracy of the data measured by OTDR instrument is closely related to the connection status of the connector of the optical fiber that waiting to measure The inspection to the connection status includes two grades Good and Bad Prompt will be given in the status bar of OTDR after inspection however it won t influence the measurement of OTDR During OTDR measurement process click the button icon stop The OTDR measurement will stop immediately When operating the buttons the instrument provides fast operation modes of two measurement models Through the measurement stop button shift button combination operation can be realized between the average and real
24. TDR click the button icon open Page dialog box open Will eject In the key mode of operation through the SHIFT button to achieve circular switching function for each window through the lt gt button to achieve the path choice of the folded or unfolded subfolders function through the V A enter button on the folder options and confirming function dB 7 032 kmfDiv 6 00 dB Div SUD FileOpen 42 00 36 00 20 00 24 00 1550 20121023 149 sor 16 00 12 00 6 00 File MGT FalderPath SDIVEM Files 0 00 DO FileName 13 i0 20121023 150 sor whut trace mahsi TL Location WEN 2112 10 23 Operator File 1310 Pulsewidth 640 ns Range 60 km Date 35666 06m TotalAttr 11 1893dB Loss D 314dB km Lengt Help Con State Bad Avg Made 155 Measurement completed VFL OFF 4 Fig 7 16 Interface Diagram of Menu Open Trace lock 29 7 6 Instruction of Menu Button File Management of OTDR After entering interface of OTDR click the button icon file management Dialog box File management will eject and the functions of file folder renaming file folder copying and file folder deletion can be fulfilled In the key mode of operation through the SHIFT button to achieve circular switching function for each window through the lt gt button to achieve the path choice of the folded or unfolded subfolders function through the V A enter button on the fol
25. al fiber but no light reflection On the curve non reflection event is shown as drop of optical power as shown in Fig 6 3 I I l I k I l I L I I l r l I l L I I l Fig 6 3 Non reflection Event 6 3 5 Event Inspection OTDR sends optical pulse into the optical fiber that waited for inspection then begins to accept the returned optical signal immediately and calculate the distance of event in the optical fiber The further the event is the longer the time for returning back to OTDR will be The distance can be calculated according to the time when receiving the event Through inspecting the curve of the reflected signal the optical transmission characteristics of optical fiber connector and joint can be confirmed 7 Introduction to Operation of OTDR 7 1 Instruction of Home Page Screen of OTDR The trace displayed on the screen that measured by OTDR is shown in Fig 7 1 3 516 km Div 6 00 dB Div qur 031 346 ye JA 17 577 21 003 24 608 28 IAC OFF Trace lock MandFlash 123 1310 20060101 D20 sor 2006 01 01 Time 13 11 35 22630 91 m Loss 9 805 dB Help 0 433 dB km Event Nurn 3 Trace graph area Trace operation buttons area amp Info window area Menu icon buttons area Q Status bar area Fig 7 1 Interface Diagram Displayed on the Screen of OTDR 17 7 1 1 Instruction of Trace graph Area on the Main Interface of OTDR The window displays the trace gained from the first measurement De
26. asured simultaneously If the file setting is saving after finishing multi wavelength measurement click the menu icon saving to save the trace files When saving it will circularly prompt whether save the corresponding trace information The prompting times are the same as the quantity of the wave length that measured Ifthe auto naming inthe file setting is ON the saved trace file will be automatically named according to setting in the auto naming category The suffixal serial number will be automatically increased according to saving times The file name is composed of characters and figures The default saving medium of the instrument is SD card The manually saving route will be the former saving route In the key mode of operation through the SHIFT button to achieve circular switching function for each window through the lt gt button to achieve the path choice of the folded or 21 unfolded subfolders function through the V A enter button on the folder options and confirming function 28 V zoom i File Late Lengt Tatal 4 i CUTE Con State Bad Avg Made 155 Measurement completed VFL OFF 4 7 032 km Div 5 00 dB Div SavePath EoMEM File FalderName IE 10 2U121023 Uude CreateFolder Fig 7 15 Interface Diagram of Menu Saving AB pen File MGT Mulb trace analvsis Trace lock He lp 7 5 Instruction of Menu Button Open of OTDR After entering interface of O
27. ature changes Avoid unnecessary knocking and vibration e f any fluid sprays onto the surface or penetrates into the equipment please turn off the power until the equipment dries completely Waming A If the operation and maintenance process of control adjustment and implementation doesn t comply with the following nominated operation regulations it may lead to dangerous radiation 9 2 Cleaning the Connector of Optical Interface Cleaning the connector of the optical interface periodically is helpful for keeping the best measurement performance of the instrument The optical fiber interface of the instrument must keep cleaning The optical interface needs to be wiped periodically with dedicated alcohol After using cover the dust cap meanwhile keep the cleanness of the dust cap In addition clean the connector of flange periodically There is no need to dismantle the equipment when cleaning Please comply with the following safety rules when cleaning a When cleaning the equipment make sure turning off the instrument If inspect the surface of the connector when the equipment is working the eyes will be injured forever b When cleaning any optical interface laser source is prohibited C Avoid lightning stroke Before cleaning disconnect the power of the instrument Use dry or slightly wet soft cloth to clean the external of the equipment case Do no clean the inside of the equipment case d Do not install components onto the
28. aultSetting Fig 7 12 Interface Diagram of Menu File Setting File setting menu provides information of trace dialog box of measuring location SN of optical fiber terminal position of optical fiber category of optical fiber operator and note Operator can fill in the corresponding character information according to the condition of project Auto saving It provides two options ON and OFF When the auto saving status is ON the file will be automatically named and set to ON status The auto naming category is optional Automatic storage file is the presence of SD card under the root directory when the OTDR is not inserted the SD card after the measurement will pop up warning window prompts Auto naming It provides two options ON and OFF When the auto naming status is ON the auto naming category is optional When the auto naming status is OFF the auto naming function is off Default setting recovery auto saving status is OFF auto naming status is ON Serial number is 001 file formatis sor auto naming category is wave length date serial number the note is blank 24 7 2 3 System Setting Set MeaPara Set FilPara Set SysPara Set Date 20121023 n Time rasnon Autor Close Thumbnail close m EndThre Line Open Screeneri Dark Comm L Alarrn open BacklighTime 10s Upgrade DefaultSetting Fig 7 13 Interface Diagram of Menu Sys
29. der options and confirming function 42 0 SDMEM Data Sel Al 36 00 30 00 1550 1015 133 sor 1310 1015 132 sor 24 00 i3i0 20121012 D48 sor is50 20121012 D49 sor 1310 20121015 108 sor 12 00 1310 20121015 107 sor i1310 20121015 105 sor 6 00 i310 20121015 103 sor le MGT i310 20121015 101 sor 0 00 _11310_20121015_099 50r ue 1310_20121015_097 sor 411 V mam FalderRename Folderlopy FolderDelete Trace lock File Date FileCopy FileDelete Lengt Help FileManage 16 00 Total Exit Con State Bad Avg Mode 155 Measurement completed VFL CIFF 4 Fig 7 17 Interface Diagram of Menu File Management 30 7 7 Instruction of Menu Button Multi traces Analysis of OTDR After entering interface of OTDR click the button icon multi traces analysis to enter icon dialog box of lower menu of multi traces analysis to realize difference contrast function of multi traces i e 4 traces non current measured and displayed trace at most can be simultaneously displayed in the same trace window 7 032 km Div 6 00 dB Div 0 00 0 000 2031 14002 21 095 25 124 35 194 42 185 48 el6 36 247 Remote SDMEM Files 41310 20121023 _150 s5or 2012 10 23 Time 15 03 37 329665 06 m Loss 11 193 dB Total Attn 0 314 dB km Event Mum 3 Con State Bad Avg Mode 155 Measurement completed VFL OFF Fig 7 18 Interface Diagram of Menu Multi traces Analysis 7 7 1 Instruction of
30. e current trace automatically 7 7 4 Instruction of Button Esc The button Esc provides operation back to OTDR home page Once clicking the button any operation under multi traces analysis will be cancelled and the setting won t be saved 7 7 5 Instruction of Button Help The button help provides operation instruction under multi waveform analysis 7 7 6 Instruction of Button Home Page When clicking the button home page it will directly back to the home page interface of the instrument 32 7 8 Instruction of Menu Button Trace Locking of OTDR After entering interface of OTDR click the button icon trace locking i e lock the current displayed trace in the trace graph area when clicking the button trace unlock the locking function is relieved Trace locking function can lock one trace each time The locked trace neither can be switched to be current trace nor be moved up and down 7 032 km Div 5 00 dB Div MGT Lu i a i i Adil d L 0 000 F031 14 062 21 093 28 124 35 154 42 185 49216 556 247 km TL 4 gt BE Y zom im Vzoomout Homm Hmm nt SDIMENM Files l3id 20121023 1850 sor 2012 10 23 Time 15 03 37 326686 DB m Loss 11 193 dB Total Attn 0 314 dB km Event Mum 3 Con State Bad Avg Mode 155 Measurement completed VFL OFF Fig 7 20 Interface Diagram of Menu Trace Locking OFF 33 7 032 km Div 5 00 dB Div m File MGT SDMENMS Files 1310 20121
31. f Auto Setting zid Measurement result Pos of A 9689 m Cuml Loss of A 3 052 dB Echo loss of A 45 077 dB Ins L of A 0 000 dB Dis between AB 10979 m i Loss between AB 3 463 dB DB MIN lt i i i i Attn between AB 0 315 dB km E LSA loss between AB 3 433 dB 2m 6336 m div 63366 m LSA attn between AB 0 313 dB km E Event list m Whole waveform Nu Event type Pos m Echo Loss dB Ins L dB Attn dB km Cum L dB Note Start Event 0 45 077 Fiber section 25326 7 978 0 315 Ref Event 25326 42 611 0 016 8 004 Fiber section 10341 3 185 0 308 End Event 35668 15 258 0 000 11 193 Fig 8 12 Interface Diagram of Menu View 45 8 3 4 Instruction of Menu Help The menu help is as shown in Fig 8 13 Functions can be realized in the menu help include user guidance i e product instruction edition information fr OIDR Traces Hanger E OIDR Trace 1310_20121023_154 sor File Edit View Biss am Vser guidance a C About OTDR Traces Manger 8 L Traces window Multi traces displaying File name 1310_20121023_150 sor 1310_20121023_151 sor 1310_20121023_152 sor 1310_20121023_153 sor 1310 20121023 154 sor BEG 1310 20121023 155 sor Measurement parameter Distance scope 60000 m Pulse width 640 ns Laser wavelength 1310 nm Refractivity 1 4666 Duration of test 30 s Back Scat Coef Auto Measurement result
32. finition of trace After the first measurement reflection power diagram is displayed as distance function The diagram is called trace Trace of OTDR displays the measurement result by graphic mode on the screen The vertical axis represents the power while the lateral axis represents the distance The event point is marked with red symbol 7 032 km Div 6 00 dB Div 031 14 062 Fig 2 Schematic Diagram of Trace Area Start Event End event Point event Fig 7 3 Schematic Diagram of Marks of Event Point 7 1 2 Instruction of Trace Operation Button Area on the Main Interface of OTDR Longitudinal amplifying indicates longitudinally amplifying the measured trace with the intersection of the chosen sign post and the trace as center Longitudinal reducing indicates longitudinally reducing the measured trace with the intersection of the chosen sign post and the trace as center Transversal amplifying indicates transversally amplifying the measured trace with the intersection of the chosen sign post and the trace as center Transversal reducing indicates transversally reducing the measured trace with the intersection of the chosen sign post and the trace as center Whole trace indicates displaying the whole measured trace Lock Unlock of AB indicates Lock Unlock of relative position of scale plates A and B Switching of trace indicates mutual switching between or among two or more measured traces
33. g Environment Maximum relative humidity 95 temperature OC 450 Before connecting to the power Confirm that the product is set to the matched voltage is installed with proper safety components and is adopted with all safety measures Product use Please do not during charging boot using the product Do not operate in explosive environment Do not use the product when inflammable gas or smog existing Do not dismante the protection sheath of the instrument Operators couldn t dismantle the sheath of instrument or change interior components If need please contact the maintenance personnel of our company Safety Terms of the Manual Warning symbol indicates danger existed It informs users pay attention to a certain process a certain operation method or similar conditions If operate wrongly or violate rules bodily injury may occur Do not enter into the next step before fully understanding and meeting the indicated warning conditions Be careful symbol indicates danger existed It informs users pay attention to a certain process a certain operation method or similar conditions If operate wrongly or violate rules partial or fully damage or defacement may occur to the instrument Do not enter into the next step before fully understanding and meeting the indicated careful conditions Indication symbol gives you helpful information about instrument operation and maintenance Waming Matters Optical time domain reflectometer is la
34. g of the trace file through event increasing event modifying and event deleting one can realize modifying of event list information f OIDR Traces Hanger E 0TDR Trace 1310_20121023_154 sor File BEE View Help Um Edit Trace information Add event Multi traces displaying File name 1310 20121023 150 sor 1310 20121023 151 sor 1310 20121023 152 sor 1310 20121023 153 sor 1310 20121023 154 sor 1310 20121023 155 sor Measurement parameter Distance scope 60000 m Pulse width 640 ns Laser wavelength 1310 nm Refractivity 1 4666 Duration of test 30 s Back Scat Coef Auto Measurement result Pos of A 9689 m Cuml Loss of A 3 052 dB Echo loss of A 45 077 dB Ins L of A 0 000 dB Dis between AB 10979 m Loss between AB 3 463 dB il Attn between AB 0 315 dB km 1 LSA loss between AB 3 433 dB 6336 m div 63366 m LSA attn between AB 0 313 dB km au E hole waveform Event type Pos m Echo Loss dB Ins L dB Attn dB km Cum L dB Note Start Event 0 45 077 gt 0 000 Fiber section 25326 7 978 0 315 Ref Event 25326 42 611 0 016 8 004 Fiber section 10341 3 185 0 308 End Event 35668 15 258 11 193 Fig 8 11 Interface Diagram of Menu Editing 44 8 3 3 Instruction of Menu View The menu view is as shown in Fig 8 12 Functions can be realized in the menu view include displaying concealing of toolbar window displaying concealing of status bar windo
35. gitudinal amplifying and reducing of trace On the home page of OTDR function module the button used together with buttons lt q gt can realize combination functions of transversal amplifying and reducing of trace On the home page of OTDR function module the button used together with button x can realize the fast switching options between the average and real time measurement mode On the home page of OTDR function module the button used together with button A B can realize scale plate A or B in the trace graph switching to the next event position When using the shift key combination function please press the Shift button then press the combination of keys function realization first release the key combination then release the Shift key D Button for power supply lurn on and turn off the power of instrument Need to press and hold for 2 3 seconds until the power light reaction can let go 4 Introduction to Home Page of OTDR The home page home of OTDR provides two module functions OTDR optical time domain reflectometer and VFL visual fault location Directly clicking OTDR or VFL can enter into the operation page of their functional modules As shown in the following figure 4 1 Operation Interface Diagram of Home Page of OTDR 4 2 Operation Interface Diagram of Home Page of VFL 5 Introduction to Operation of VFL Click VFL functional module on the home page to enter VFL main operati
36. int Multi traces printed on single page Measurement result Pos of A 12673 m Cuml Loss of A 3 992 dB Echo loss of A 42 611 dB Ins L of A 0 016 dB Dis between AB 12673 m i i i i Loss between AB 1 278 dB DB MIN lt i i i s Attn between AB 0 101 dB km LSA loss between AB 3 957 dB 2m 6336 m div LSA attn between AB 0 312 dB km E Event list Hl hole waveform Ins L dB Attn dB km Cum L dB Note gt gt 0 000 Event type Pos m Echo Loss dB Start Event 0 45 077 Fiber section 25326 7 978 0 315 Ref Event 25326 42 611 0 016 8 004 Fiber section 10341 3 185 0 308 End Event 35668 15 258 11 193 Fig 8 3 Interface Diagram of Menu File 1 Open close close all files Open dialog box will eject after selecting the function Open as shown in Fig 8 4 Users can choose at most 8 trace files in a same folder through Ctrl mouse the selected file will be in the list of multi waveform displayed file The opened trace file can be closed by selecting close file or close all files in the menu file od SHIGE est OB o m 1 e 1310 20121012 nT5 T 1310 20121013 T5 TOMS Mei sid_20121023_150 1310 20121023 151 3 e 1310 20121023 152 Ee 1310 20121023 153 1310 20121023 154 Ab 1310_20121023_ 155 A 1310_20121024_150 ca S 1550_20121012_059 il 1550_20121013_058 1550_20121023_149 1550 20121024 149 zie a sjeti o Cable number Tes
37. inting trace files will display the corresponding figure and wave length information In addition under the print mode the first selected trace file i e the uppermost one is defined as the master file The trace information on each page of the printed file should conform to that of the master file Display and print multi traces Folder Please click the folder to add the following data files in the folder Print aptions Cable number Testing Pos Testdate 2012 10 23 15 03 37 Laser wavelength 1310 nm Pulse width 640 ns Distance scope 60000 m Duration of test 30s Chain length 35668 m Chain loss 11 193 dB Chain Attn 0 314 dB km Select files 1310 20121012 075 sor 1310 20121013 075 sor 1310 20121023 150 sor 1310 20121023 151 sor 1310 20121023 152 sor 1310 20121023 153 sor 1310 20121023 154 sor 1310 20121023 155 sor 1310 20121024 150 sor 1550 20121012 58 sor 1550 20121013 056 sor 1550 20121023 149 sor 1550 20121024 149 sor La lii Add files Add all files selected files 23 Remove files Remove all files Fig 8 10 Interface Diagram of Dialog Box Display and Print Multi Traces 43 8 3 2 Instruction of Menu Editing The menu editing is as shown in Fig 8 11 Functions can be realized in the menu editing include trace information editing event increasing event modifying and event deleting Through trace information editing one can realize trace information modifyin
38. iscontinuity point along with the length of optical fiber Compared to Rayleigh scattering Fresnel reflection will reflect quite a lot of lights The power of Fresnel reflection is tens of thousands times of that of back scattering The reflection strength is ascertained according to the change degree of refractivity Distance calculation formula of OTDR Distance c n x t 2 Among which c speed of light in vacuum 2 998 x 108 m s t Time delay between transmitted pulse and received pulse n refractivity of optical fiber during testing process nominated by manufacturer When displaying the whole trace each point on the trace graph represents the average value of several sampling points The value of each sampling point can be found by reducing or magnifying the trace electric pulse Optical pulse Optical pulse Optical pulse Optical directional OTDR Port Optical Pulse generator Laser diode coupler 4 liber Optical signal returning I 1 Returning back to OTDR signal Photoelectric detector Analog digital converter I Analyzed i signal Master clock Signal processor Fig 6 1 OTDR Principle Diagram 6 3 Instruction of Events Categories Events on optical fiber indicate these abnormal points that brought loss or sudden change of reflection power beyond normal scattering of optical fiber material including various kinds of connection and bending loss of flaw or fracture on the optical fiber link Event point
39. lder a Batch print Batch print multi traces print on single page display and print multi traces Batch print multi traces print on single page display and print multi traces only allows The print mode only allows print format of single trace in single page of trace file under the same folder and the print format of the selected trace file are the same F Batch Print Folder Select files om All Users 1310 20121012 075 sor 1310 20121013 075 sor 1310 20121023 150 sor 1310 20121023 151 sor 1310 20121023 152 sor 1310 270121073 153 sor 1310 20121023 154 sor 1310 20121023 155 sor 1310 20121024 150 sor 1550 20121012 058 sor 1550 20121013 056 sor 1550 20121023 149 sor 1550 20121024 149 sor La lii Default User LocalService NetworkService Add files Please click the folder to add the following data files in the folder Add all files Print options Cable number Testing Pos Test date 2012 10 23 15 03 37 Laser wavelength 1310 nm Pulse width 640 ns Distance scope 60000 m Duration of test 30s Chain length 35668 m Chain loss 11 143 dB Chain Attn 0 314 dB km selected files Remove files Remove all files Fig 8 8 Interface Diagram of Dialog Box Batch Print 41 D Multi traces print on single page The print mode only allows multi traces print on single page of trace file under the same folder When conducting Multi traces print on single page
40. n report and repairing address along with the product when mailing back to the manufacturer Please use original packaging material to pack the equipment when mailing If possible please back up your data before sending the equipment After repairing we will send out the equipment attached with a maintenance report If the equipment is beyond the guarantee scope user should pay the expense stated on the maintenance report If the equipment is within the guarantee scope we will pay the back freight To accelerate problem treatment process please clearly list the product name serial number refer to ex factory label on the back cover of battery storage of OTDR product and statement of problems 9 6 Transportation When transporting the equipment the temperature must be maintained in a regulated scope Equipment may be damaged during the transportation process because of improper operation We suggest complying with the following procedures so as to reduce the damaging possibility e When transporting pack the equipment with original packaging material Avoid over high humidity or over large temperature changing Avoid direct sunlight e Avoid knocking and vibration 53 10 Common Failure Diagnosis of OTDR product e Common problems Problem 1 Blank screen or cannot start up Possible reason Electricity is used up oolving method Charge the battery Use AD DC adapter to connect the equipment with external power suppl
41. ndow Area of the Main Interface of OTDR sssse sana nana 19 7 1 4 Instruction of Status Bar Area on the Main Interface of OTDR sssssssee sana nana 21 7 2 Instruction of Menu Button Set of OTDR aaaaa savana saa sana asa asa asa saa saa ssa asa sana sana eene 22 2 2 bPalelrelter Seno este s ae o M M e o LE DD E e 22 2 2 25 ERE eil E ma me m E mm em me meme mnm 24 f 2 aco CI M SEUNO LI o i a o oi une 25 7 3 Instruction of Menu Button Measurement Stop of OTDR 2 0 0 0 cece sana asa enne 26 7 4 Instruction of Menu Button Saving Of OTDR aaavaaaa sana sana sana asa asa saa saa sana sana asa sana sana 27 7 5 Insmucaor er Menu BUON Oben OF O TDR tuis dudo deuten tona eade tu id dosao katodi o aca don ut debated 29 7 6 Instruction of Menu Button File Management of OTDR sssssseesee enne 30 7 7 Instruction of Menu Button Multi traces Analysis of OTDR sssssee enne 31 7 7 1 Instruction of Button Multi traces Setting sssssssssssee nennen 31 Ake hstrucdoror Button Trece 12 93 47 eot etd sa m oet t e S aee Dune to Pose Rs 32 Telo Insdqucuom OF Button REMOVE eto atc js i i edet nous enu e ub da de uod 32 7 1 4 Instruction of BUON a m Rr tetto Bue rr ooo edt e ee 32 7 7 SANSMUCUO MOF BUON HED osi eii dn io ERE le qi En iiir iube SB 32 1 7 OANSTUCUON OF BUON Hore Page secutis tutis a rite made 32 7 8 Instruction of Menu Button
42. nect inclined connector para position 2 Change the connector 3 Misaligned dowel pin e Testing setting problem Problem 6 he trace curve is too short and the measurement time is too long Possible reason The set testing distance is too long oolving method Set proper length scope according to the actual length of optical fiber or the length that tound by the automatic measurement model Problem 7 Only partial trace is displayed which causes test failed Possible reason The set testing distance is too short oolving method The testing distance should be set larger than or equals to the actual length of optical fiber Problem 8 partial events are measured Possible reason Too big pulse width oolving method 1 Choose a smaller range of pulse width 2 Increase testing time Problem 9 he trace is too noisy Possible reason The pulse width is too small and the scanning time isn t enough oolving method 1 Increase the testing time 2 Increase the pulse width properly 39 Appendix Technical Parameters of OTDR Technical Specifications Wavelength nm 850 1300 1310 1550 1310 1490 1550 1625 Dynamic range dB 21 23 32 30 38 36 32 30 30 20 40 80 1605 Pulse width ns 320 640 1280 5 10 20 40 80 160 320 640 1280 2560 5120 10240 20480 Displaying screen 5 6 touch screen 640 480 Linearity dB dB 0 05 dB dB Loss threshold dB 0 05 Loss resolution ratio dB 0 01 dB Sampling re
43. nicians won t change the parameter If the back scattering coefficient is changed it will influence the reflection value and optical return loss that reported by instrument No option or user setting is provided in OTDR instrument Reflection threshold No option or user setting is provided in OTDR instrument Non reflection threshold set by user input scope 0 01 2 99 the default value is auto When the manual setting value is 0 00 it will transfer to auto value Bundling threshold it is used as the threshold value for looking over event point when the instrument treating data i e event points that lower than the set value of bundling threshold will be removed while the event points that higher than the set value of bundling threshold will be displayed For options set by user input scope is 1 19 99dB the default value is 5 00dB Default setting recovery distance scope is auto pulse width is auto duration of measurement is 10sec laser wavelength is 1550nm measurement model is average model length unitis meter refractivity is 1 4685 back scattering coefficient is auto reflection threshold is auto non reflection threshold is auto bundling threshold is D OOdB 23 7 2 2 File Setting Location CablesM EndLocation CableType Operator Autosave OFF SutoMame jon Ie StartSh B FileFormat sor NameType waveenseDatessN e Comment Def
44. nt s trace files To plug U disk 8G into the USB interface can transfer the trace data saved in the instrument into the U disk and then save the data into the computer from the U disk to conduct subsequent analysis or take out the SD card from the instrument and plug into the computer to conduct subsequent analysis The data in the U disk can be read only if plug in the U disk when the instrument is on amp Charge Indicator When charging the battery the indicator is turned on to be green when charging finished the indicator will turn off automatically LAN Ethemet Interface oeveral models have such interface amp Audio Interface oeveral models have such interface 3 2 Instruction of Optical Interface of Instrument e Optical Interface of OTDR The optical interface is the measurement interface of OTDR It adopts FC UPC optical connector SC ST are replaceable e VLS Optical Interface The optical interface is the measurement interface of VFL It adopts FC UPC optical connector SC ST are replaceable Invisible laser radiation Do not look at the optical interface directly or look over the optical interface through optical instrument The optical interfaces of OTDR and VFL output laser Users should always avoid look at the laser outlet directly Not mention to observe the optical outlets with microscope or magnifier If the energy of laser beam focuses on the retina the eyes will be hurt perpetually 3 3 Instruction of Butt
45. odified erased or worn e Equipment damage caused by improper using negligence or accident 9 5 2 Responsibilities We won t be responsible for using damage or performance failure of the other equipment connected to the product or operation failure of any related system of the product We won t be responsible for the damage caused by improper using or damage caused by modifying the equipment attachment or software without authorization 9 5 3 Disclaimer We has right to change the design or structure of any product and has no duty to change the sold product according to requirement of any user Various attachments including but not limited to fuse indicator battery and general joint used by our products aren t included in the guarantee scope If any of the following conditions occurs the guarantee will become invalid improper using or installation normal wearing or fracture accident violations negligence firing water logging lightening or other nature accident reasons beyond the product or other reasons beyond our control Key prompt We will charge fees for changing damaged optical connectors caused by improper use or harmful cleaning 52 9 5 4 Maintenance If you need to maintain our products please call our service hotline 4008 240 648 our personnel will help you determine if your equipment needs technology service maintenance or calibration If your product needs maintenance please attach the failure phenomeno
46. of OTDR sssse e 47 o 54L Displaying Area or Trace graph sisse tb teet oos tb eich yes ie Mee oro iced 47 8 5 2 Displaying Area of List of Multi traces Displaying File es 48 8 5 3 Displaying Area of Measurement Parameter oo cece asa asa asa asa asa eene 48 8 5 4 Displaying Area of Measurement Result 48 8 6 Instruction of Event List Window of PC Terminal Software of OTDR sse 49 8 7 Instruction of the Whole Waveform Window of PC Terminal Software of OTDR es 49 8 8 Instruction of the Status Bar Window of PC Terminal Software of OTDR eee 49 9 OTDR Products Maintenance and Service 00 cceec cece ccscccesssccesssccesssscessssccssssecesssscesssscessssccesssecesssecesssecesseeeseeseess 50 9 L Operagon Note or OTDR P lOQUCE oo adi tem ea ies Mel a ako 50 9 2 Cleaning the Connector of Optical Interface ec savana asa asa asa saa saa sssaaa sana sana sana sana 50 9 3 Maintenance and Changing of Battery uu cece cccsccccsscccsssecesssecesssscesssscessssecessecesssscsessecesssseseneees 51 94 Calibra orr or OTOR Produ tono deo atte dati sa sok e aid desta tva dao sasa 51 9 JEeMmceana Guefante gos nE iste SS SE S S DER 52 95 Lieneratlntornaloris RR Re m m o e ee 52 95 2 ReSDOPSIDIIIUGS e ime do i o edo a dodoa a oat o danak ai 52 DIS ANN NS e ges sees vega a e je i jo es esa e o dai 52 93 MEI BESSER RE ROC ERR 53 EO Wes a cirea ic eR NEN EN e
47. on interface directly y F L N ote Normal 1 When VEL opened Users should always avoid looking di rectly at VEL laser output Users can t use microscope I gt magnifying glass equipments to watch the light outpu t The energy of the laser beam will gather to the ret ina that will cause the permanent damage of eyes 2 After VEL Opened Users could operate another functio n module by click Home button 3 When VEL is idle please promptly shut down VFL OFF Fig 5 1 Main Operation Interface Diagram of VFL VFL provides two kinds of using status bright permanently twinkling Clicking the button bright permanently the VFL will enter turn on status of permanent lightening clicking the button twinkling the VFL will enter turn on status of 2Hz twinkling clicking the button OFF the VFL will turn off immediately When clicking the button auto turn off the dialog box of auto turn off setting is ejected Operator can conduct corresponding setting on the dialog box Auto turn off function provides options of OFF after 5 min after 10 min after 30 min after 1 hour after 2 hours The default setting is 10 min i e turns off after 10 min No matter it is under which kind of auto turn off status when clicking the button OFF the light permanently or twinkling status of VFL will be turned off VFL Autoclose Setting VFL AutoCloze Defaul Settinz Fig 5 2 Opera
48. ons on the Instrument A Home page button Q Escape from the current page and back to the home page directly he button used together with button A can realize in the OTDR home page event parameters fiber link AB cursor of the information window cycle switch display function R S Measure Stop Button n the home page interface use the buttons directly into the OTDR interface to start the test to achieve a key test operation On the home page of OTDR function module press this button to start measuring during measuring process press this button to stop measuring On the home page of OTDR function module When used together with Shift can be realized between the average and real time measurement mode toggle selection Enter Confirmation button On the main interface it can realize the function of icon selection confirmation when conducting menu operation pressing the button indicates that the current operation comes into effect On the keyboard or drop down list confirm corresponding character and data Qe in the menu dialog box identify the current operation effect a V JUp down buttons Q Select the desired menu icon On the keyboard or drop down list select the corresponding characters or data in the folder tree structure window realize the tree node is moved up or down When used together with Shift it can realize longitudinal amplifying and reducing of contract displaying trace q
49. optical equipment or randomly adjust the optical equipment e Please ask qualified and professional maintenance personnel that approved by our company to repair the equipment Cleaning operation steps 1 Take down the connector of the optical interface from the instrument The base and pin of the connector will be revealed 2 Wet a 2 5 mm cleaning rod with a drop of isopropyl alcohol if use to much alcohol vestige may be left 3 Gently plug the cleaning rod into the optical interface adapter until it stretches out from 50 the other end rotating clockwise is good for cleaning 4 Gently rotate the cleaning rod for a circle and keep rotating it when drawing it out 5 Use a dry cleaning rod to do the action in step 3 and 4 Note do not touch the soft end of the cleaning rod 6 Clean the pin in the port of connector according to the following steps e Drip a drop of isopropyl alcohol onto the nonlinting cloth Gently wipe the connector and the pin Key prompt If use too much isopropyl alcohol or let it evaporate randomly about 10 min residual may be left Avoid the bottleneck touching the cloth to make the surface dry rapidly e Gently wipe the same surface with a dry nonlinting cloth to ensure the connector and the pin completely drying User can use a portable optical fiber microscope or detector to inspect the surface of the optical connector Install the connector of optical interface back to the in
50. ormation of optical fiber link click the icon fiber link through the touch screen then the information of optical fiber link can be found in the info window Contents of information of optical fiber link are shown in Fig 7 5 File SDMEMGLinksi3i0 20121023 15C sor Date 2012 10 23 Time Laisa Length 35668 06 m Loss 11 123 dB Total Attn 0 314 dB km Event Mum 3 Fig 7 5 Info Window of Optical Fiber Link Information of scale plate includes position of point A or B plug in loss of point A or B back scattering coefficient of point A or B accumulate loss of point A or B distance of A B section loss between two points of AB section attenuation coefficient between two points of AB section and LSA attenuation coefficient of AB section Sign post is used to mark and analyze a single event curve section and distance The information of sign post shows distance loss and attenuation coefficient between sign posts When changing any sign post the record value will also be changed along with it When looking over information of scale plate click the icon AB cursor through the touch screen then the information of scale plate can be found in the info window Contents of information of scale plate are shown in Fig 7 6 BLocation 15821m A B Dis d11 m BIns L 0 016 dB ABZPt Laoss 2 4802 dB BRefl 42 5611 dB ABZPt Aftn 1 215 dB km BCum L 4 965 dB ABZPt LSA Loss 2 478 dB ABzPt L SA Attn 0 313 dB km Fig 7
51. ow of Event List se RH A Start Non ref lective fiber Ref lection End EVEN event Section event event Fig 7 8 Icon Picture of Event Category 20 7 1 4 Instruction of Status Bar Area on the Main Interface of OTDR Measure Mode AVg Mode time RealTime time Measuring progress Measurement completed VFL status VEL OFF VEL ON Fig 9 Schematic Diagram of Status Bar Information Status bar of OTDR separately provides status display of 5 categories of function display of connection status display of measurement model status display of measuring progress status bar display of VFL status display of power status Display of connection status inspect the connection status of optical connector of OTDR Before beginning measurement and after inspecting the communication light OTDR will automatically inspect the connector of instrument and the connection condition of the optical fiber that waiting to be measured The connection status includes two levels good and bad It will prompt user after inspection however it won t influence the measurement Display of measurement model status measurement model includes average measurement and real time measurement Under the models of average measurement and real time measurement it will provide user functions of measurement starting and stopping and will prompt measurement status in the status bar of the measurement model Display of measuring progress status ba
52. p Echo loss of 4 45 077 dB Ins L of A Dis between AB 7849 m Loss between 46 10 125 dB Attn between AB 1 290 dB km LSA loss between AB 2 670 dB LSA attn between AB OU 340 dB km Fig 8 19 Schematic Diagram of the Displaying Area of Measurement Result 48 8 6 Instruction of Event List Window of PC Terminal Software of OTDR The data information displayed in the window event list conforms to that of the instrument terminal Instructions of each column in the event list are as follows Serial Number indicating the sequence that the event point appears on the optical fiber link Event category including beginning ending reflection event and non reflection event Position indicating the distance from the connector of OTDR instrument and the optical fiber tested to the event point Plug in loss indicating dB quantity of an event longitudinally dropped Attenuation coefficient indicating the attenuation dB value of each kilometer of optical fiber between the event and the former event on the optical fiber link Back scattering coefficient indicating the reflection quantity of the reflection event Accumulate loss indicating the attenuation dB value of the optical fiber from the connector of OTDR instrument and the optical fiber tested to the event Note note the modified event The option won t provide print display Event list Nu Event type Pos m Echo Loss dB Ins L dB Attn dB km Cum
53. r when clicking the icon button measurement OTDR begins measurement and the measuring progress status bar shows measurement conducting when measurement finished or clicking the icon button stop the measuring progress status bar shows measurement completed Display of VFL status when starting using VFL function the VFL status bar shows VFL ON when closing VFL function VFL status bar shows VFL OFF Display of power status OTDR instrument needs to display the using conditions of the current battery on the status bar of the main interface The status of battery includes charging status and discharging status When the battery is in discharging status the current quantity of electricity in the battery will be marked by five grades separately are full of electricity greater quantity of electricity remains half electricity remains insufficient electricity and electricity run out When the battery is in charging status the current quantity of electricity in the battery will be marked by two grades separately are charging full of electricity 21 7 2 Instruction of Menu Button Set of OTDR Set menu shows three dialog boxes file setting parameter setting and system setting The data when starting up the instrument are the setting data of the former operation as default menu dialog box Set is shown in Fig7 10 WaveLen MMF 858nm 1300nm SMF 1310nm 1550nm POM SME 7 1480nm C 1625nm Range
54. r and be hurt e When the optical time domain reflectometer working do not look at the laser outlet directly e Alter using cover the dust cap onto the optical outlet of the optical time domain reflectometer e Do not directly look at the disconnected terminal of the being tested optical fiber If possible make the disconnected terminal of fiber optical point to a non reflective object 3 Appearance Diagram of OTDR Product s yaq asia f ued yono D q f Aaexieq wniuz e qees4eupea jo e8e4o1s Ppd jo awu pue lepo 7 uoi YOLIMS samog GF Joieo pu 4ewog d 2o1eo pu 3ueueonseeu yq10 G 4oye0 pul quA u9949s uonoj gy vong jeuoriouny 314g GP vong Buiyozims our gv uojjng 957 q uwong xi e UBIJ o JosJno s o 3J9 03 405419 e o Gn sp4ewuwop Jos4no eno dy spaewdn dosino e oy fy Long dos jusweinseay fy uoiinq ased euo 3 eoej4eju 390493 gy 24437 gon Qf sejsoqu suoydueg EP eoejsoyu soydepe wod eoej4eu paeo OS EP 4oreo pul sui24eu5 yoz azau 621300 UA eje 291160 0 Fig 3 1 Appearance Diagram of OTDR 3 1 Introduction to Electrical Interface of Instrument e DC12V 3A Power supply interface Requirement to power supply interface input DC12V 3A polarity O e e USB SD Data Interfaces The instrument is matched with USB and SD card interfaces SD card interface is matched with a 4G SD card The SD card is the default data saving medium of the instrume
55. rat rd e S e e a a anti 53 10 Common Failure Diagnosis Of OTDR Product cece ananasa asa sauna sana sana asa aaa sauna asa sana sana sana 54 Appendix Technical Parameters O OTOR eranan djes dete erac ae adi O A Od E IA 56 1 Copyright Information Copyright O 2013 belongs to us Without agreement and written permission in advance of us any content in the manual couldn t be copied saved in retrieval system or spread by any way including electronic or mechanical photocopying recording or any other method Guarantee Any change of the information in the manual won t be notified We won t guarantee anything about the material including but not limited to hint guarantee for marketability and adaptability of dedicated target For these accidental or secondary losses caused by errors contained supplying to use the material or the practicability of the edition materials We won t undertake any responsibility Measurement unit The measurement unit used by the manual complies with SI standard and conventions 2 Safety Information Safety Instruction When using the product pay attention to the following safety measures Any behavior not adopting these safe operation methods or not complying with special cautions stated at other places of the manual will violate the safe designing manufacturing and using standard of the products We won t undertake any responsibility for the consequences caused by customers violating these requirements Workin
56. s displayed on the screen is the abnormal points in the optical fiber that led to deviation of trace which are classified with special symbols on the trace Events include reflection event and non reflection event 6 3 1 Initial Event Initial event on the OTDR trace is the event that marks the starting point of optical fiber Under default conditions initial event is located at the first event usually be the first connector of OTDR of the tested optical fiber The event belongs to reflection event 6 3 2 End Event End event on the OTDR trace is the event that marks the terminal of optical fiber Under default conditions end event is located at the last event of the tested optical fiber The event is called optical fiber terminal event usually be the end or fracture point of the tested optical fiber which usually belongs to reflection event 6 3 3 Reflection Event When optical pulse energy is reflected such as on the connector reflection event occurs On the trace reflection event is shown as peak signal as shown in Fig 6 2 LI M jM eee Je momo eg ew wg eg eg gs MM Mw ew ew ew a aa Ee oc ccc nom de riae do mi las rome ee me ks dici jesi tikii ir ee er a gi kosi ese ee ee m m ee ee ee ml m m m m ee ee et he ee ee ee et he ee ee ee ee o momo momo momo mom ml Fig 6 2 Reflection Event 6 3 4 Non reflection Event Non reflection event brings loss on the whole transmission link of optic
57. ser equipment Users should avoid look steadily at the laser outlet from time to time also couldn t observe the optical source outlet with microscope or magnifier etc If the energy of laser beam focuses on the retina the eyes will be hurt perpetually When using OTDR to measure optical fiber working light in the measured optical fiber couldn t exist Otherwise the measuring result won t be accurate and the instrument may be damaged perpetually Cautions Battery the battery of our company s optical time domain reflectometer adopts rechargeable lithium battery When using the instrument after a long term A lying aside charge the battery firstly If the instrument is laid aside for more than 1 month charge the battery in time to maintain the electricity in the battery Do no charge the battery over 8 hours Do not take out the battery randomly Do not make the battery approach to fire and heat flash Do not open or damage the battery Do not touch the electrolyte of the battery otherwise the eye skin and clothes will be injured and corroded Outside power supply All OTDR series can use outside power supply Requirements of power supply DC12V 3A polarity Q e 4Q Avoid laser radiation during measuring processing of optical fiber system avoid looking at the open optical fiber optical fiber interface optical fiber tie point and other optical source etc otherwise the eyes may come into contact with the transferred lase
58. solution ratio 0 125 to 8 m Sampling point 32K Distance uncertainty m 1m 5x10 x distance sampling interval Distance scope km 0 3 10180 Typical real time 0 2 refreshing duration s Memory capacity of trace SD Card 4G gt 10000 pieces Duration of measurement 5sec 10sec 15sec 30sec 1min 2min and 3min are selectable General specification Interface category Dimension H x W x D 150 x 235 x 66 are selectable USB interface SD card Weight 1 5kg kids interface Temperature Memory temperature 40 C to 70 C Visible failure orientation VFL Relative humidity O96 to 95 non condensation Wavelength 650nm Lithium battery continuing working Power suppl Output power dBm dii duration z 8 hours Ee l Warranty period 12 months Maximum testing distance 3k Remarks 1 The technical specification describes the ensured performance of the instrument when using typical PC model connector to measure Without considering the uncertainty caused by optical fiber refractivity 2 Dynamic range is the data measured under the condition of the maximum pulse width and 3 minutes of average time Dynamic range is the data measured under the condition of 100km 20480ns 3min FC UPC PC and APC Optical interface Data interface V 3 0 3 Measuring conditions of blind zone reflection event is within 10Km reflection strength lt 45dB Measured by the minimum pulse width
59. strument push and rotate it clockwise 8 Discard the cleaning rod and cloth after using once 9 3 Maintenance and Changing of Battery OTDR series optical time domain reflectometer adopts inlaid rechargeable lithium battery Maintaining battery should pay attention to the follows You d better store the instrument including battery under room temperature 15 C to 30 C and place it at dry place to keep its best performance the instrument is left unused for a long term leave unused for more than 1 month you d better charge the battery once a month Do not charge the battery too long exceeding 8 hours otherwise the battery may be damaged Qe Battery changing operation steps are as follows a Take down the cover of battery storage b Firstly move the rechargeable battery away then draw out the battery connector from the plug hole of the rechargeable battery 9 4 Calibration of OTDR Products We calibrates the product according to ISO IEC 17025 standard The standard regulates that the calibration file can exclude the recommended calibration interval unless otherwise achieved agreement with customer The effectiveness of regulations depends on the operation conditions For example the effectiveness of calibration can be prolonged or shortened according to the using intensity environmental conditions and equipment maintenance Please confirm the proper equipment calibration interval according to the demands of accuracy
60. tem Setting Date selected by user select the date month and year separately The factory setting is the date manufactured Time selected by user select the hour minute and second separately The factory setting is the current time Auto shutdown selected by user options include OFF 5min 10min 20min 30min and 1 hour The default value is OFF Thumbnail selected by user options include ON and OFF the default value is OFF Optical warning in optical fiber selected by user options include ON and OFF the default value is ON Bundling threshold line selected by user options include ON and OFF the default value is OFF Bundling threshold line is marked with red dotted line Screen brightness adjustment selected by user options include dark darker lighter and bright the default value is darker Backlight duration selected by user options include 10S 15S 20S 30S 50S 60S 120S 1809S the default value is 10S in the case of without performing any operation after 10S enters the screen saving mode oystem upgrading after selecting and confirming the option the core module software of the instrument can be upgraded Default value recovery language is Chinese the date and time are the factory settings auto shutdown is OFF optical warning in optical fiber is ON thumbnail is OFF bundling threshold lineis OFF 25 7 3 Instruction of Menu Button Measurement
61. ting Pos Testdate 2012 10 23 15 03 37 Laser wavelength 1310 nm Pulse width 640 ns Distance scope 60000 m Duration of test 30 s Chain length 35668 m Chain loss 11 193 dB Chain Attn 0 314 dB km Fig 8 4 Interface Diagram of Dialog Box Open 2 Save the current curve save all curves save the current curve as When selecting save the current modified curve save all modified curve and save the current curve as another file the dialog box shown in Fig 8 5 will eject BEE O ee phet sl OM 1310_20121012_075 a d 1310 20121013 DT5 AO Me 1S10_ 20121023 150 1310_20121023_151 1310_20121023_152 1310_20121023_153 1310_20121023_154 1310_20121023_155 1310_20121024_150 1550 20121012 058 1550 20121013 058 1550 20121023 149 1550 20121024 149 REG ET Cable number Testing Pos Test date 2012 10 23 15 03 37 Laser wavelength 1310 nm Pulse width 640 ns Distance scope 60000 m Duration of test 30 5 Chain length 35668 m Chain lass 11 193 dB Chain Attn 0 314 dB km Fig 8 5 Interface Diagram of Dialog Box Saving 38 3 Print option print print preview Print option print and print preview are corresponding to print mode single trace in single page Setting items in print option include trace information trace graph including mesh sign post bundling threshold line event point marks thumbnail parameter information optical fiber link and event list
62. tion Interface Diagram of Auto Shutdown of VFL On VFL interface after turning on the VFL function under turn on status users can enter into OTDR interface through home page interface to conduct OTDR measurement meanwhile it will provide a status window on the status bar to show the ON or OFF status 13 6 Introduction to OTDR 6 1 Measuring Purpose of OTDR OTDR displays the power of the returned signal related to distance The information can be used to confirm the transmission quality of a fiber optic link 6 1 1 Measuring Contents of OTDR Q Position distance of event result or fractured position of fiber optic link Attenuation coefficient of optical fiber in the optical fiber link Q Loss of a single event for example a optical connector or bending or total losses from end to end on the fiber optic link Reflection amplitude or reflection level of an event such as connector 6 1 2 OTDR Curve Analysis OTDR analyzes the curve automatically Location of the curve Reflection event generated from connection and mechanical connector e Non reflection event usually be fusion splice Q Optical fiber bundling through scanning the first loss event that larger than the bundling threshold OTDR detects the bundling of optical fiber Events list Category of events loss reflection and distance are listed through calculation 6 2 Basic Principle of OTDR Optical Time Domain Reflectometer is the full name of OTDR OTDR is accurate
63. ulti traces Displaying File After selecting open function the opened trace file is displayed in the list of multi traces displaying file 8 trace files can be displayed at most Through the button multi traces displaying these 8 trace files can be singly or wholly displayed in the trace graph area In addition these 8 trace files are displayed by different colors in the trace graph area In the area through the right key of mouse functions of trace information opening closing and editing of a single file can be realized List of multi traces displaying file is as shown in Fig 8 17 File name 1310 20121025 1350 sor 1550 20121012 056 sor 1550_20121023_149 sor 1310_20121012_0 5 s0r Fig 8 17 Schematic Diagram of the Displaying Area of List of Multi trace Displaying File 8 5 3 Displaying Area of Measurement Parameter Displaying area of measurement parameter is as shown in Fig 8 18 Measurement parameter Distance scope 60000 m Pulse width 640 ns Laser wavelength 1310 nm Refractivity 1 4666 Duration of test 30 s Back Scat Coef Auto MRef Threshold Auto m r el l I Fig 8 18 Schematic Diagram of the Displaying Area of Measurement Parameter 8 5 4 Displaying Area of Measurement Result Displaying area of measurement result is as shown in Fig 8 19 Measurement result Chain Attn 0 314 dB km Quantity of events 3 Test date 2012 10 23 15 03 37 Pos of 4 Om Cum Loss of am
64. w window rearranging displaying concealing of relevant tool buttons for trace operation including transversal longitudinal amplifying reducing whole trace displaying displaying concealing of relevant tool buttons for AB scale plate AB line locking switching displaying concealing of relevant tool buttons for multi trace operation including traces switching longitudinal upwards downwards longitudinal resetting displaying concealing of optical fiber section information in the event list distance unit setting and style setting of background of the trace graph area Y OIDR Traces Manger E OIDR TraceX1310 20121023 154 sor Bais File Edit RIEA Help f Toolbar i a Status Bar Beh Rearrange widows T al lifyi nm st 3 id v Multi traces displaying 54 00 Para Ana i i i i i DB MA Longitudinal amplifying Ses File name idinal reducin i i r 1310 20121023 150 sor 1310 20121023 151 sor i 1310 20121023 152 sor AB line locking unlocking 1310 20121023 153 sor AB line switching i i 1310 20121023 154 sor 1310 20121023 155 sor Trace switching Measurement parameter Shift trace up i i H i Distance scope 60000 m Shift trace Down Pulse width 640 ns Reset trace n Laser wavelength 1310 nm 3 i i Refractivity 1 4666 v Display the optical fiber section in event list gt D Duration of test 30 s Back Scat Coe
65. wavelength measurement model measurement of multi wavelength output from the same optical interface will be automatically and successively completed Users can set analysis and file saving with different wavelength In addition multi wavelength measurement is valid only under the average measurement mode Multi wavelength measurement is forbidden under the real time measurement mode Distance scope selected by user options include auto 300m 1Km 5Km 10Km 30Km GOKm 100Km and 180Km Pulse width selected by user options include auto 5ns 10ns 20ns 40ns 80ns 160ns 320ns 640ns 1 28us 2 56us 5 12us 10 24us and 20 48us Duration of measurement selected by user options include 5s 10s 15s 30s 1min 2min and 3min If the current measurement model is real time measurement the selected duration of measurement won t play role in the measurement Measurement model selected by user options include average measurement and real time measurement When selecting real time measurement mode the selected duration of measurement won t play role in the measurement Length unit meter No option or user setting is provided in OTDR instrument Refractivity set by user input scope 1 0000 1 9999 default value is set to be 1 4685 Back scattering coefficient it is to provide OTDR with a relative back scattering electrical level for the given optical fiber Back scattering coefficient is set before delivery Usually tech
66. y Problem 2 Button can t work properly Possible reason The button is damaged oolving method change the button board Problem 3 data saving aren t allowed Possible reason SD card is used up oolving method Export the curve to empty the memory e Optical fiber connection problem Improper optical fiber connection may lead to trace measurement failure instructions are as follows Problem 4 if the measured trace is as shown in Fig 10 1 sasaecsse essebasesvasensaosa sadesesenooeesoesesbessaoaono eeadssanosehobutuu a de anoseonsdssaoaaoanoenonoeobosonosasaaensdanaasesosanaoasboasaoosooosaadasnaenanuuuono ee o 2 eee ee om Possible reasons Solving method CDUsing improper optical fiber jumper 1 change the optical fiber joint jumper 2 The connector isn t clean 2 Clean the connector 3 The connector is ageing 3 Change the connector 54 Problem 5 if the measured trace is as shown in Fig 10 2 Fig 10 2 Possible reasons Solving method CD Improper connection CD Recon

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