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User Manual for Two-Way Loss Test Set + ORL KI 7340 / 7740

Contents

1. Follow the procedure for Power Meter Calibration except that after selecting POWER METER next select to select the detector The active detector is indicated by or on the display Source Calibration amp Current Check The emitter power level can be re calibrated and the current checked CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure Required are a power meter with appropriate calibrated A singlemode test leads an anti tamper label and a 2 54 mm 0 1 programming jumper Check the calibration certificates on your reference equipment to ensure current validity Ys CALIBRATION amp MAINTENANCE Put the instrument in calibration mode Connect a calibrated power meter with a known good patch lead the patch lead loss forms part of the calibration condition Press SOURCE leave in and then press LEVEL The display will now show the expected power level cal factor main display and laser current in mA top right Note the existing values for future reference Set meter A to match e Adjust the button to change the source output level to match the displayed level on the source display or to re enter a known cal factor The laser current can not go above a level that has been set for the individual laser during manufacture Note new calibration values and laser currents for f
2. 11 Set the Optical Power Meter to 1310 nm some instruments require warming up at this point each time the 2 is changed 12 Set the DUT A to 1310 nm Setting the A automatically enables the source 13 Note the value shown on Table 5 14 Repeat for each additional as required Light Source Section Optional Short Term Stability Test table 5 15 Make one photocopy of this page for each source wavelength to be tested 16 Connect the equipment as shown 17 Setthe optical power meter to 1310 nm 18 Set the DUT A to 1310 nm Setting the A automatically enables the light source 19 Let the unit warm up for 15 minutes then note the power in the table below KI 734x 774x UM 4 20 Record the power every 30 seconds for 3 minutes 21 Calculate max min values for stability lt 0 1 dB 22 Notes this figure on Table 5 Time from Power Drift Tick max min Start dBm dB values 00 sec 0 00 30 sec 60 sec 90 sec 120 sec 150 sec 180 sec Alternatively the instrument max min recording function can be used to record the data PERFORMANCE VERIFICATION TESTS Light Source Section Optional Centre A and Bandwidth FWHM Test Table 6 23 Connect the equipment as shown in figure below 24 Switch on the instruments and allow to fully warm up 25 Set the DUT A to 1310 nm Setting the A automatically enables the Source 26 the OSA press t
3. Battery amp External Power Optical Connector Getting Started amp Turning On Autotest Overview Two Way ORL Autotest Operation pass fail One Way Autotest Operation Power Meter Manual Operation Light Source Manual Operation Return Loss Meter Manual Operation Storing amp Recalling Readings PC Interface External Software Care of your Instrument Accuracy Considerations Specification Definition of Terms Specifications Ordering Information Calibration amp Maintenance Performance Verification Tests Power Meter Performance Verification Light Source Performance Verification Two Way Loss Performance Verification One Way Loss Performance Verification ORL Performance Verification Performance Verification Tables Quick Reference Guide Disclaimer amp Warranty User Notes BEFORE READING FURTHER REFER TO THE CONTROL PANEL PICTURE IN THE QUICK REFERENCE GUIDE SECTION OF THIS MANUAL KI 734x 774x UM 4 27 31 32 35 37 41 42 42 45 47 48 50 58 61 62 KI 734x 774x UM 4 SERVICE amp SUPPORT Applications Support Please visit www kingfisher com au to see our comprehensive Application Notes written to support our instrument users Our local agents are able to offer excellent applications advice in your language and time zone Look at www kingfisher com au to find distributor details from the Contact Us section Otherwise if you are having difficulties please feel free to contact s
4. Put each instrument into Autotest before connecting the patch leads Note the results will be stored on both instruments and then merged later so records management needs extra care Use of KITS PC Software with Autotest To realise the full benefit of Autotest use the KITS PC software in the field with a laptop to achieve real time data acquisition acceptance testing and reporting Full operating sequences are given in the KITS on line manual KITS also supports bi directional test results using non bi directional instruments KITS also enables merging of test results from multiple instruments Y POWER METER MANUAL OPERATION This mode of operation is typically used to measure Tx Rx absolute power levels to perform continuity testing using the tone detector or to perform loss testing if an Autotest light source is not available On a Loss Test Set if the power meter section is used in this mode with any source turned on the instrument links the source and meter wavelengths to simplify operation To access all other meter wavelengths first turn off the light source WARNING Observe optical safety procedures relevant to the power levels being measured especially for the high power H3 meter After instrument turn on the meter is operational at the last used To enter this mode select POWER METER To scroll the calibrated wavelength press The calibrated is displayed on the top right side
5. Date Output Power CW Test Minimum Spec Measurement Results 1310 nm 8 00 dBm dBm 1390 nm 8 00 dBm dBm 1490 nm 8 00 dBm dBm 1550 nm 8 00 dBm dBm 1610 nm 8 00 dBm dBm Measurement Uncertainty dB Optional Short Term Stability Test A Measurement Results Maximum Spec 1310 nm 1390 nm 1490 nm 1550 nm 1610 nm Measurement Uncertainty KI 734x 774x UM 4 dBpp dBpp dBpp dBpp dBpp dB 0 10 dBpp 0 04 dBpp typical 0 10 dBpp 0 04 dBpp typical 0 10 dBpp 0 04 dBpp typical 0 10 dBpp 0 04 dBpp typical 0 10 dBpp 0 04 dBpp typical PERFORMANCE VERIFICATION TABLE Table 6 Kingfisher KI 7343A InGaAs Two Way Loss Test Set ORL optional wavelength test record Central amp Special Bandwidth FWHM Test optional z DUT 1 Minimum Spec Measurement Results Maximum Spec Centre A 1310 nm 1290 00 nm nm 1330 00 nm 1390 nm 1470 00 nm nm 1410 00 nm 1490 nm 1470 00 nm nm 1510 00 nm 1550 nm 1530 00 nm nm 1570 00 nm 1610 nm 1590 00 nm nm 1630 00 nm Spectral Bandwidth 1310 nm nm 6nm 3 nm typical 1390 nm nm 6nm 3 nm typical 1490 nm nm 6nm 3 nm typical 1550 nm nm 6nm 3 nm typical 1610 nm nm 6nm 3 nm typical Measurement Uncertainty dB KI 734x 774x UM 4 PERFORMANCE VERIFICATION TABLE Table 7 Kingfisher Two
6. Plug the PC end of the test lead into the ORL port Plug the APC terminator into the far end of the test lead using an additional through adaptor not supplied The reading should meet the previous singlemode or multimode condition PERFORMANCE VERIFICATION TESTS ORL Verification Test for KI 734x Instrument with APC Connector This verification test uses artefacts supplied with the units PC APC test lead multimode or singlemode PC terminator OPT704 APC terminator OPT704A Very carefully clean all the optical connectors to be used and the left hand instrument port Re set the meter to factory ORL defaults select SHIFT DEFAULTS then SET to store 61 To display ORL select POWER RETURN LOSS to select the active A 62 Plug the APC end of the patch lead into the ORL port and note the reading A reading between 13 65 dB RL and 15 65 dB RL is within calibration specification Repeat this step for additional A s 63 Plug the APC polish Low Reflection Terminator OPT704A into the ORL port and note the reading Singlemode instruments a reading between 50 and Lo dB RL indicates terminator and instrument are working correctly KI 734x 774x UM 4 Multimode instruments a reading between 35 and Lo dB RL indicates terminator and instrument are working correctly 64 To verify the supplied PC APC test lead and OPT OPT704 PC terminator Plug the APC end of the test lead into
7. and a mandrel wrap Power Meter A uncertainty affects power meter calibration This is significant with a Ge detector in the 1550 nm band eg gt 1560 nm in cold weather and an InGaAs detector in the 850 nm band where absolute errors of the order of 1 dB are possible Do not use a Ge detector at A s around or above 1580 nm Only an InGaAs detector will be accurate at these 5 This A sensitivity is why Ge detectors are used in 850 1300 nm multimode applications and why InGaAs detectors are used in high end single mode applications This issue affects absolute power measurements may not significantly affect attenuation KI 734x 774x UM 4 measurements where the meter was referenced to the same light source Ge power meters are inherently non linear by about 0 04 dB Ge meters also have temperature dependent calibration drift at 1300 nm of typically 0 03 dB per 10 Improved measurement stability on laser based systems is typically achieved by using an APC connector at the power meter interface which reduces line reflections This is important when measuring small connector losses Light Source Light source power may drift When you have finished a test go back to the start position to check if the light source power is still within acceptable limits Specifications are for typical drift warm up and with a specified level of return loss Actual drift will vary between instruments and test situations Most a
8. AA size batteries Instrument Function C size battery run time in hours Optical Power Meter only 360 Source Two Way tester ORL 190 in Autotest About 30 capacity is obtained when using 2 x AA alkaline 1 5V or NiMH 1 2V cells using the supplied battery size adaptors or 50 capacity when using 2 x 1 2 V rechargeable C size batteries The supplied AA to C size battery size adaptors enable convenient purchase of batteries in almost any location since most shops around the world stock AA batteries When the batteries are low a low battery indicator is shown on the display At this stage there is approximately enough energy for another 10 hours of use which allows a day s work to be completed To save energy the instrument automatically turns off after 10 minutes without operation To switch on the instrument for permanent operation hold the POWER key down for 3 seconds during turn on until PERM is shown in the display KI 734x 774x UM 4 To change the batteries open the cover of the battery compartment at the base of the instrument remove the batteries insert new ones check polarity and close the cover again For operation of the instrument by external power use Kingfisher AC adaptor OPT103B Suitable external power packs are easily available and must meet the following requirements Rated for local mains supply voltage amp safety requirements Regula
9. Methods both local and remote reference methods are supported The remote reference mode is especially useful for long distance testing and is generally used with a bi directional loss test method The local reference method is especially useful for short distance testing and is typically used with single direction test methods Note that excess connector loss between the patch lead and source port will be added to the final loss measurement so care should be taken to use test leads in good condition with clean connectors When setting the reference value use test leads with a similar fiber type to the system under test This is particularly important with multimode systems Y ONE WAY AUTOTEST OPERATION The number of test jumpers used when taking a reference is a function of test requirements and standards compliance not the instruments involved so this issue is beyond the scope of this manual To set a reference go into relative mode and press SET REF on the meter for 3 seconds This stores the reference at all relevant wavelengths To exit Autotest mode Either disconnect the optical test lead Or on the Light Source press MENU Then select Menu on the meter or wait 8 seconds for Autotest to timeout Single Two Way Tester KI 734x 774x UM 4 Simultaneous Autotest Measurement on two fibers Loss Test Sets support this as shown in the following picture Simultaneous one way loss testing
10. NZS 2064 1 Safety 61010 1 2001 EN 61010 1 2001 Canada CSA C22 2 No 1010 1 1992 USA UL 3111 1 1994 IEC 60825 1 2001 FDA CFR 21 part 1040 10 FDA Accession No KI 7300 Series 0220392 KI 7700 Series 0220391 Supplemental Information The product was tested in a typical configuration with Kingfisher International test systems bo Blo 2006 May 01 Bruce Robertson Date Name Technical Director Title For further information please contact your local Kingfisher International sales office agent or distributor Revision C Issue Date 2006 May 01 OPERATING MANUAL KI 7340 Series Two Way Test Set ORL KI 7740 Series Two Way Loss Test Set Congratulations on your purchase of this instrument which has been engineered to provide the best possible reliability convenience and performance To get the best use from your equipment and ensure its safe operation please spend a few minutes to read this manual For hints and tips from experts refer to our Application Notes on www kingfisher com au This manual was written using firmware V5 0 QUALITY O STEM WORLD RECOGNISED ACCREDITATION ORL amp Two Way Loss Test Set Made in Australia International Patents Granted Copyright Kingfisher International Pty Ltd 4 Edition May 2006 KI 734x 774x UM 4 1 CONTENTS Service amp Support Introduction amp Applications General Safety Summary
11. Set ORL No Warm up 850 nm LED APC Si Meter ORL 850 1300 nm LED Ge Meter ORL 1310 1550 nm PC InGaAs Meter ORL 1310 1550 nm APC InGaAs Meter ORL 1550 1610 nm PC InGaAs Meter ORL 1550 1610 nm APC InGaAs Meter ORL 1310 1550 nm Meter ORL 1310 1550 nm APC Meter ORL 1550 1610 nm PC Meter ORL 1550 1610 Meter ORL KI 774x Series Two Way Loss Test Set 850 nm LED PC Si Meter ORL 850 1300 nm LED PC Ge Meter 1310 1550 nm PC InGaAs Meter 1310 1550 nm APC InGaAs Meter 1310 1550 nm Meter 1310 1550 nm APC Meter 1310 1550 nm PC H5 Meter 1310 1550 nm H5 Meter Non Bold No longer available as new but technical support still available KI 734x 774x UM 4 73411A Si APC 7344A Ge APC KI 7343 InGaAs KI 7343 InGaAs APC KI 7346 InGaAs 7346 InGaAs APC 7343A H3B 7343A H3B APC KI 7346 7346 APC KI 77411A Si KI 7744A Ge KI 7742A InGaAs KI 7742A InGaAs APC 7742A 7742A APC 7742 H5 7742A H5 APC KI 734x Series Two Way Loss Test Set ORL No Warm up 1550 nm PC InGaAs Meter ORL 1550 nm APC InGaAs Meter ORL 1310 1550 nm PC InGaAs Meter ORL 1310 1550 nm APC InGaAs Meter ORL 1490 1610 nm PC InGaAs Meter ORL 1490 1610 nm APC InGaAs Meter
12. Way orOneWay Verification Test Model Instrument Connector Style Report No Date Calibration Test A Acceptable Range Measurement Results 1310 nm 0 5 to 0 5 dB dB R 1390 nm 0 5 to 0 5 dB dB R 1490 nm 0 5 to 0 5 dB dB R 1550 nm 0 5 to 0 5 dB dB R 1610 nm 0 5 to 0 5 dB dB R Fiber Type tick Singlemode Multimode Linearity amp Range Test No Attenuator Setting Meter Reading Linearity Calculation Acceptable Linearity Range 1 5 dB 2 15 dB No2 1 9 5 10 5 3 20 25 48 No 3 2 4 5 5 5 9 5 10 5 4 35 dB No 3 3 9 5 10 5 Note1 The linearity range here is typically limited by attenuator linearity rather than instrument performance KI 734x 774x UM 4 PERFORMANCE VERIFICATION TABLE Table 8 Kingfisher ORL Verification Test Model Instrument Connector Style tick PC Report No Date ORL Calibration Test Acceptable Range all A and fiber types A Measurement Results 1310 nm PC 14 15 15 15 dB R 1390 nm APC 13 65 15 65 dB R 1490 nm dB R 1550 nm dB R 1610 nm dB R Residual Light Test Acceptable Range Measurement Results APC Connector SMF 50 Lo dB R PC Connector SMF 35 Lo dB R APC Connector MMF 20 Lo dB R PC Connector MMF 20 Lo dB R KI 734x 774x UM 4 QUICK REFERENCE GUIDE 734x 774x Two
13. a matched pair of instruments which perform automated testing and bi directional data exchange between the two instruments A pair of KI 774x instruments test Two Way loss at all source wavelengths A pair of 734x instruments test Two Way loss and also the ORL at each end at all source wavelengths Turn on both instruments and connect the device to be tested eg test lead etc to the two way test port left port of both instruments To start Autotest on one instrument only press AUTOTEST Both instruments now display the same two way average loss in dB and the display rotates through all available source A KI 734x 774x UM 4 Both units also display lt The unit where Autotest was initiated shows the A flashing and it has become the Master unit The other unit will flash B and it has become the Slave unit In most respects the units behave the same way however the A unit will remain in Autotest until the user turns this mode off On either instrument to display the loss of only one A at a time press To display further detail eg the loss in one direction repeatedly press SELECT on the hidden keypad This display mode shows etc On the 734x Series instruments this also includes ORL measurements When displaying loss in one direction the reference value shows on the left of the display Alternatively selecting ABS REL displays the actual measured dBm value
14. checks notify the nearest Sales Service Office see page 4 WARNING You MUST return instruments with malfunctions to a Service Center for repair and calibration see page 4 Operating Environment This equipment can be operated at temperatures between 15 C and 55 C and at relative humidity of 95 Storage amp Shipment This equipment can be stored or shipped at temperatures between 25 C and 70 C and at relative humidity of less than 95 Protect the units from temperature extremes that may cause condensation within it GENERAL SAFETY SUMMARY Safety These instruments contain no hazardous optical or electrical items The following information is for your reference When using this equipment optical safety precautions should be observed commensurate with the maximum available source power since most of this power can also be coupled out of the instrument This instrument is manufactured under 1509001 approved Quality System and conforms to CE Mark and C tick EMC specifications Optical power levels in fiber optic systems can cause permanent eye injury and damage to eyesight Organisations and users operating with these power levels MUST determine and observe relevant safety precautions which are beyond the scope of this manual Never look into the end of an optical cable or connector which might be attached to an active source Do not enable a laser when there is no fibre attached to the optical output
15. of the display To toggle absolute relative display mode press ABS REL The display will show dB R or dBm To stop start display update press HOLD The symbol will flash when the display is on hold To store a new reference press SET REF for 3 seconds When in relative mode the reference value is displayed on the left hand side of the display KI 734x 774x UM 4 To toggle log linear display mode access the hidden keypad and press dBm W To display minimum and maximum values over a period access the hidden keypad and press MAX MIN The display shows Max Min values in sequence Press MAX MIN for 3 seconds to re start the recording process This function re sets automatically when instrument parameters are altered This is a handy data logging function for field use If the meter detects a test tone between 150 Hz and 9999 Hz the display will change to show the actual measured modulation frequency in Hz If a standard tone is detected eg 270 Hz 1 KHz 2 KHz a buzzer will sound This is useful for fiber identification and signalling The meter can also be used to check the actual modulation frequency of test sources between 150 Hz and 9999 Hz To measure the operational power level in a fiber optic system the meter is used in dBm or linear modes To measure optical loss or attenuation the power meter is used in dB mode and the source power is taken as a reference LIGHT SOURCE
16. remove connection or press MENU One Way Autotest two way supported via KITS Reference Connect a two way source port to a power meter port Select POWER all instruments On source press AUTOTEST Meter shows Auto while synchronising On meter ABS REL For 3 seconds press SET REF Meter will display about 0 00 dB R Loss testing After referencing connect test system to two way source port on source and meter port on meter Select POWER all instruments On source press AUTOTEST Meter shows Auto then press ABS REL to show loss Use to show one e only Press Hold to hold resume display update In this mode STORE stores the retained reading Autotest remains synchronised for 8 seconds after signal loss to allow quick connection change To exit Autotest remove test lead or turn off source for gt 8 seconds Y QUICK REFERENCE GUIDE 734x 774x Two Way Loss Test Set cont Memory Store works in all modes however Recall or Clear only work in Source Meter or Return Loss modes Clear all memory press both RECALL and CANCEL simultaneously for 3 seconds clr will display To store in next location press STORE To change next store location press SELECT SET or MENU To recall press RECALL to scroll memory Use Abs Rel to see dB dBm values Hold down Abs Rel to see reference level Autotest memory recall also use to se
17. temperature dynamic range and fiber core diameter up to 200 um Note 4 H3 can sustain the damage level for 2 minuets KI 734x 774x UM 4 SPECIFICATIONS General Specifications Size Weight Operating Storage Power Case Hidden Keypad RS232 KI 734x 774x UM 4 190 x 130 x 70 mm 7 5 x 5 1 x 28 500 gm 1 1 Ib Shipping 1 5 Kg 3 3 Ib 15 to 55 C 25 to 70 C 2 alkaline C cells 7 6 A hr or 2 AA cells using supplied adaptor or external 9V DC with 25 mm Selectable auto off and low battery indicator and back lit display Polycarbonate 1 meter drop tested For setting advanced functions 3 5 mm jack connector 0 3 38 4 K baud Calibration Display Resolution Tone detection Damage level Min Performed without opening instrument Recommended calibration cycle Every 3 years 4 digit high contrast LCD Log 0 01 dB Linear 3 digits 100 999 or 0 01 nW 150 9999 Hz 1 Si Ge InGaAs gt 15 dBm H3 gt 30 dBm for 2 minutes Recording feature for stability testing This instrument is manufactured under 1509001 approved Quality System and conforms to CE Mark and C tick EMC specifications Kingfisher International maintains an ongoing program of product and process improvement and reserves the right to improve or amend specifications without notice ORDERING INFORMATION KI 734x Series Two Way Loss Test
18. the ORL port Plug the PC terminator into the far end of the test lead using an additional through adaptor not supplied Singlemode a reading between 35 and Lo dB RL indicates the terminator patch lead and instrument are working correctly Multimode A reading between 20 dB and Lo RL indicates the terminator patch lead and instrument are working correctly PERFORMANCE VERIFICATION TABLE Table 1 Required Major Equipment for all tests on Kingfisher Fiber optic Tester Instrument Accessory Recommended Model Required Characteristics Alternative Model Optical Light Source 74024 7400 KI 7800 Optical Power Meter KI 7600A 7700 Optical Attenuator SMF KI 7010A MMF KI7020A Connector Interfaces ST FC or SC Singlemode Fiber FC Connector Adaptor 2 5 mm programming shunt Needle nose pliers Anti tamper labels For optional test only Optical Spectrum Analyser 71450B 71452B 8164xA B Connector Adaptors Singlemode Fiber KI 734x 774x UM 4 Y 50 PERFORMANCE VERIFICATION TABLE Table 2 General Test Record for Kingfisher Fiber Optic Tester DUT Two Way Loss Test Set Model DUT Serial No DUT Options Date Ambient Temperature C Relative Humidity DUT Firmware Rev Line Voltage amp Frequency Test Facility Customer Performed by Report No Special Notes KI 734x 774x UM 4 x PERFORMANCE VER
19. 0 1370 1390 1410 1430 1450 1470 600 1650 10to 70 50 Ten 40 005 un 1490 1510 1530 1550 1570 1590 1610 1625 820 850 5 to 60 40 980 1270 1290 1300 1310 1330 1350 2 pe as 1370 1390 1410 1430 1450 1470 1490 800 1700 5to 70 xls m 2 0 05 0 1510 1530 1550 1570 1590 1610 1625 1650 H3B 1270 1290 1300 1310 1330 1350 InGaAs 1370 1390 1410 1430 1450 1470 1490 800 1700 27 to 50 430 30 1 lt 0 005 0 35 1510 1530 1550 1570 1590 1610 1625 KI 774x Power Meter Specifications Detector Calibration 2 Response A Power Autotest Mid range Calibration Polarisation Total Type Range Sensitivity Linearity Accuracy Sensitivity Uncertainty nm nm dBm dBm dBm dB dB Si 600 650 660 780 850 980 350 1100 0 to 70 47 0 02 3 lt 0 005 0 3 850 10 to 65 45 po 1300 1310 1550 1590 1610 1625 20100 10 to 70 50 ae 0 005 850 5 to 60 40 InGaAs 1300 1310 1550 1610 1625 800 1700 45 to 70 50 0 02 3 lt 0 005 0 3 H3 850 27 to 35 20 InGaAs 1300 1310 1550 1610 1625 He TUO 27 to 45 30 Sm Note 1 range linearity excludes top 3 dB and bottom 10 dB of range Note 2 Calibration condition non coherent light 35 5 dBm 23 5 1 10 3 nm FWHM PC ceramic connector 62 5 um fiber Note 3 Includes contributions due to varying optical connector types calibration uncertainty full
20. D symbol Then at the remote end press HOLD to resume the display update and make the local end beep This communication function is also linked with KITS software so that the far end user knows when a reading has been saved in KI 734x 774x UM 4 KITS and the near end user knows when the far end user has moved to the next fiber and so is ready for the next reading Note that all operation and data acquisition can be controlled from one end only so a relatively unskilled operator can be used at the other end Referencing Both local and remote reference methods are supported The Two Way remote reference method is useful for long distance testing It has slightly lower accuracy which is quite adequate for general link loss testing The alternative local reference method is useful for short distance testing It provides high accuracy and so is useful for testing device or patch lead loss and may be used with both Two Way and single directional less testing When setting the reference value use test leads with a similar fiber type to the system under test This is particularly important with multimode systems Note that excess connector loss between the patch lead and source port will be added to the final loss measurement so care should be taken to use test leads in good condition with clean connectors The number of test jumpers used when taking a reference is a function of test requirements and s
21. IFICATION TABLE Table 3 Equipment Record for Kingfisher Fiber Optic Tester Description Model No Trace No Cal Due Date 1 Optical Light Source 7402A 2 Optical Power Meter 7600A 3 Optical Attenuator KI 7010A 4 5 T 8 9 10 Accessories Product Singlemode Fiber Connector Interfaces 1 OPTO60G KI 734x 774x UM 4 PERFORMANCE VERIFICATION TABLE Table 4 Kingfisher Optical Power Meter Accuracy Test Record Model KI 7343A InGaAs Two Way Loss Test Set ORL Report No Date Total Uncertainty Accuracy Test Test Wavelength nm Setting Reference Attenuator Minimum Spec DUT Maximum Spec Number Setting 0 3 dB of Ref Measurement results 0 3 dB of Ref 10 00 dBm 10 30 dBm 9 70 dBm 1 dB dBm 20 00 dBm 20 30 dBm 19 70 dBm 2 dB dBm 30 00 dBm 30 30 dBm 29 70 dBm 3 dB dBm 40 00 dBm 40 30 dBm 39 70 dBm 4 dB dBm 50 00 dBm 50 30 dBm 49 70 dBm 5 dB dBm Measurement Uncertainty dB Note 1 This is for the 7343A InGaAs For the KI 7344A Ge or series instruments increase by 0 2 dB KI 734x 774x UM 4 PERFORMANCE VERIFICATION TABLE Table 5 Kingfisher Optical Light Source power amp stability test record Model KI 7343A InGaAs Two Way Loss Test Set ORL Report No
22. KI 7340 Series Two Way Test Set ORL 7740 Series Two Way Loss Test Set OPERATING amp MAINTENANCE GUIDE INTERNATIONAL DECLARATION OF CONFORMITY ACCORDING TO ISO IEC GUIDE 22 AND CEN CENELEC EN45014 Manufacturer s Name Kingfisher International Pty Ltd Manufacturer s Address 30 Rocco Drive Scoresby Victoria 3179 Australia Declares that the product Product Name Optical Loss Test Set Model Number 7340 7740 Series Product Options This declaration covers all options of the above product s Conforms to the following European Directives The product herewith complies with the requirements of the Low Voltage Directive 73 23 EEC and the EMC Directive 89 336 EEC including 93 68 EEC and carries the CE Marking accordingly Conforms to the following product standards Standard Limit EMC IEC 61326 1 1997 A1 1998 EN 61326 1 1997 A1 1998 CISPR 11 1997 EN 55011 1998 Group 1 Class B IEC 61000 4 2 1995 A1 1998 EN 61000 4 2 1995 A1 1998 4kV CD 8kV AD IEC 61000 4 3 1995 A1 1998 A2 2000 3 V m 80 1000MHz IEC 61000 4 3 1996 A1 1998 A2 2001 IEC 61000 4 4 1995 EN 61000 4 4 1995 0 5kV signal lines 1kV power lines IEC 61000 4 5 1995 EN 61000 4 5 1995 0 5 kV line line 1kV line ground IEC 61000 4 6 1996 EN 61000 4 6 1996 3V 0 15 80 MHz IEC 61000 4 8 1993 EN 61000 4 8 1993 30 A m IEC 61000 4 11 1994 EN 61000 4 11 1994 0 5 cycle 100 each polarity Canada ICES 001 1998 Australia New Zealand AS
23. MANUAL OPERATION This mode of operation is typically used to perform continuity testing with the test tone generator if an Autotest compatible power meter is not available After instrument turn on the display shows source off To turn on the source emitter press SOURCE The source is scrolled or turned off using eg 1310 1490 1550 1610 nm off For the simplest level of operation the sequence is simply POWER SOURCE The active wavelength is shown on the right hand side of the display Source power level is at the left hand side of the display Modulation frequency if relevant is at the center of the display KI 734x 774x UM 4 To modulate the source press MOD and the modulation frequency is displayed To select a different modulation frequency press SOURCE KHz scroll from 0 27 KHz 1 kHz 2 kHz SET Laser Output Power Adjustment To adjust laser output power turn the laser on then select LEVEL to adjust the level then SET This function does not operate in Autotest mode and is not available on LED sources RETURN LOSS METER MANUAL OPERATION 734x series instruments measure Optical Return Loss ORL using the Optical Continuous Wave Reflectometer OCWR method This measures the accumulated reverse power at the point of measurement This method is accurate and suitable for acceptance testing However it can not locate a reflection source and has limi
24. N TESTS Power Meter Section Accuracy Test table 4 1 Connect the reference equipment as shown in figure below 97 PM 5555 LTS Power Meter KI7010A KI7020A Attenuator LTS Source Test set up for the Power Meter Accuracy Test 2 Switch on all instruments 3 Set all instruments to 1310 nm 4 Change the attenuation of the attenuator until the reference optical power meter displays 10 00 dBm Note the attenuator setting in setting 1 of Table 4 If the laser source is not powerful enough to give 10 00 dBm set the attenuator to 2 5 dB and correct the appropriate values in the test report 5 Repeat for settings no 2 5 for reference power meter readings of 20 30 dBm 40 dBm 50 dBm last reading not relevant to H series power meters KI 734x 774x UM 4 Measure the DUT Re connect the attenuator output cable to the DUT power meter port and select the correct wavelength on the DUT Power Meter 6 Set the attenuator to its value for step 4 Note the displayed power level of the DUT in the test record 7 Repeat this for the other attenuator settings 8 Repeat for each additional A as required Light Source Section Output Power Test table 5 9 Connect the equipment as shown in figure below 5 LTS Power Meter Test set up for both the Output Power and Short Term Stability Tests Y PERFORMANCE VERIFICATION TESTS 10 Switch on the instruments
25. ORL 1550 1610 nm PC InGaAs Meter ORL 1550 1610 nm APC InGaAs Meter ORL 1310 1490 1550 PC InGaAs Meter ORL 1310 1490 1550 nm InGaAs Meter ORL 1810 1550 1625 nm PC H3 Meter ORL 1310 1550 1625 nm H3 Meter ORL 1310 1390 1550 1610 nm PC InGaAs Meter ORL 1310 1390 1550 1610 nm APC InGaAs Meter ORL 1310 1490 1550 1610 nm PC InGaAs Meter ORL 1310 1490 1550 1610 nm APC InGaAs Meter ORL 73421A InGaAs 73421A InGaAs 7343A InGaAs KI 7343A InGaAs APC 73412A InGaAs KI 73412A InGaAs APC KI 7346A InGaAs KI 7346A InGaAs APC 7347 InGaAs 7347A InGaAs APC 73410A InGaAs 73410A InGaAs 7348A InGaAs KI 7348A InGaAs APC 7349A InGaAs KI 7349A InGaAs APC Ys ORDERING INFORMATION Standard Accessories ST FC SC metal free optical connector adaptors KITS PC software and cable manual batteries AA to C size battery converter NATA traceable calibration certificates carry strap or tilt bail leather pouch amp protective holster KI734X instruments only PC Low Reflection Terminator APC Low Reflection Terminator Optical Connectors These instruments have interchangeable optical connectors The power meter works with both PC and APC connectors The light source ferrule type is fixed and customer specified as eithe
26. S software Two Way Autotest Data is stored as follows For each A two way average dB For each direction dBm dB reference dBm source dBm source s n A 734x only ORL at each end One Way Autotest Data is stored as follows For each A dBm dB reference dBm source dBm source s n A Power Meter Data is stored as follows dBm dB reference dBm A ORL Data is stored as follows dB RL zero offset user calibration factor A Source Data is stored as follows Nominal output dBm A STORING amp RECALLING READINGS Operation Operation is via the hidden keypad To display the current memory location at top right press SELECT and CANCEL to exit Store To store in the next location press STORE The display shows busy while new data is stored In Hold mode existing data will be stored To store data starting at a particular location or over write a record press SELECT SET STORE Recall Data can only be stored in Autotest mode To recall data exit Autotest first To read from any location press RECALL and To display the relative and reference values press Abs Rel To show a second A press Two Way mode To see more details for that memory location and A eg A B or A only press SELECT successively KI 734x 774x UM 4 Erase A full memory is indicated by a repeating buzzer To clear all stored data press RECALL MEMORY am
27. Tx for RS232 KI 734x 774x UM 4 Baud Rate The baud rate can be set to 0 3 0 6 1 2 2 4 4 8 9 6 19 2 and 38 4 Kbaud The default baud rate is 9 6 Kbaud To set the baud rate on the hidden keypad press SHIFT BAUD RATE then to set the rate followed by SET At turn on the default is restored Local Remote Modes The hidden keypad enables the user to lock out the front panel controls by pressing LOCAL or REMOTE EXTERNAL SOFTWARE KITS PC software KITS PC software enables instrument control and transfer of live or stored data to an Excel spreadsheet This is ideal for data logging and reporting applications typical in field applications Functions currently supported in V3 01U include Live power meter display Data logging with graph and statistical information Label printing Loss testing spreadsheet with direct click and point data insertion or memory download Two Way loss reporting by merging one directional measurements Optical return loss reporting Two Way loss reporting using Two Way option KI 734x 774x UM 4 KITS 16 easily customised by intermediate level users of MS Excel and Notepad This is convenient to change language terminology or to add new reporting features This free software is evolving Please visit our web site at www kingfisher com au to download the latest version CARE OF YOUR INSTRUMENT Follow the directions in this manual on opti
28. Way Loss Test Set To remove interchangeable connector press button on rear of case and pull off adaptor This may be easier with a test lead attached To defeat auto power off hold down POWER for 3 seconds at turn on until On and Perm are displayed Low battery is indicated with a battery symbol To access the hidden keypad pull up display cover Two Way Autotest Models KI 7x4x only Remote reference On each instrument Connect two way port to power meter port Select POWER AUTOTEST ABS REL Press SET REF for 3 seconds Meter displays about 0 00 dB Local reference Connect two way ports of both instruments Select POWER on both instruments Autotest For 3 seconds press Set Ref Meters displays about 0 00 dB Loss testing After referencing connect two way port of both instruments to device under test Select POWER on both instruments then Autotest on one unit Auto shows while synchronising then average loss To show one A wavelength only scroll To show dBm dB results for each direction press SELECT successively in hidden keypad Press MENU to exit Two Way Communication Press HOLD to make remote end beep and flash HOLD Then at Remote end press HOLD to KI 734x 774x UM 4 resume display update Local end beeps and stops HOLD flashing Autotest remains synchronised 8 seconds after signal loss to allow quick connection change To exit Autotest
29. ales kingfisher com au for applications support Instrument Service Qualified personnel must perform adjustment maintenance or repair of this product To obtain service e Contact your local Kingfisher International distributor Look at www kingfisher com au to find distributor details from the Contact Us section or to get a Service Request Form from the Support page e Contact our office at Tel 61 3 9757 4100 Fax 61 3 9757 4193 Email sales kingfisher com au KI 734x 774x UM 4 Before returning equipment to Kingfisher for Service or Calibration please obtain and complete a Service Request Form on our web site www kingfisher com au Kingfisher offers a fixed price repair service to avoid delays and minimise disruption for our customers For the staff at our fully equipped service and calibration center it is their pleasure to keep your equipment performing at its very best INTRODUCTION amp APPLICATIONS General The 734x 774x Series Two Way Loss Test Sets are used to test all types of fiber optic systems and components e High speed optical loss testing in dB at up to 4 A and two directions simultaneously e Tx Rx absolute optical power levels dBm e Optical Return Loss KI734x series Optical Continuity testing with the test tone features e Full CWDM DWDM and out of band testing capability e Options for singlemode amp multimode fiber types e Telecom constru
30. and in Two Way mode a pass fail test function is provided Autotest remains synchronised for about 8 seconds after disconnection so the user can change optical connections without re starting Autotest each time This provides productivity gains Two Way Loss Test Sets in Autotest mode are usually used in matched pairs A single instrument also works in stand alone mode to achieve one direction testing KI 734x 774x UM 4 Autotest reduces source warm up drift and battery consumption compared to manual operation To realise the full benefit of Autotest use the KITS PC software in the field with a laptop PC to achieve real time data acquisition acceptance testing and reporting KITS includes a comprehensive on line manual Please download this software off our web site and try it Instrument Compatibility Any sensible combination of Loss Test Set s or source and meter can be used as long as they are Autotest compatible Functionality will be as follows A pair of identical Two Way Test Sets Two Way average loss at multiple A plus ORL each end for 734x instruments Any other Autotest Source amp Meter combination One way loss at all matching source and meter A Bi directional testing in this mode is supported by KITS using successive measurements TWO WAY ORL AUTOTEST OPERATION pass fail Two Way ORL Loss Testing This is the preferred method of loss testing with these instruments It requires
31. and source nominal output power To exit Autotest mode Either disconnect the optical test lead Or on the Light Source press MENU Then select Menu on the meter or wait 8 seconds for Autotest to timeout Autotest A Selection Mode If the required regular testing uses fewer wavelengths than the instrument has available then it may be convenient to reduce the number of active Autotest wavelengths For example instead of the source rotating through 1310 1490 1550 1610 nm it can be set to test at 1310 1550 nm only Enter set up POWER SOURCE Y TWO WAY ORL AUTOTEST OPERATION pass fail Then Press to change Press right hand grey button below the screen to view the in status of each A To toggle In Out state for each A Press SHIFT then right hand grey button below the screen Autotest now operates only with 5 selected as In out To run this mode from the main menu press SHIFT then AUTOTEST The settings will be retained at the next turn on User to User Communication Display update for both instruments can be started or stopped from either instrument using the HOLD function which also activates the buzzer each end This is also a handy communication method between two users so they can synchronise while working through successive fibers This works as follows e Press HOLD at the local end to make remote end beep and flash the HOL
32. ation chain from the national laboratory to the test meter connectors and test leads must be absolutely clean and undamaged Reference conditions are the conditions during the responsivity calibration Total Uncertainty The uncertainty for a specified set of operating conditions including noise and drift connectors and test leads must be absolutely clean and undamaged Autotest Sensitivity The power level below which Autotest does not work ORL Meter Range Display range ORL Accuracy The ORL measurement absolute uncertainty Port Isolation The passive ORL port isolation when the instrument is turned off as measured by another ORL meter Source Output Power The CW output power at the specified A at the end of a reference cable KI 734x 774x UM 4 Power Uncertainty Repeatability Uncertainty in power level at the end of a reference cable Short Long Term Power Stability In CW mode the uncertainty of the power level observed over a given time compared to the mean power during this time Measured with an averaging optical power meter a 9 125um fiber at constant temperature within a specified temperature window and at line voltage Center A The A representing the center of mass of the selected peaks CW 1 Po X P A Where Pi and Ai are the power and A of each spectral component and Po is the total power Spectral Bandwidth FWHM full width at half the maximum Describes the spectral width of t
33. ay be obtained from our web site Test Failure If the equipment under test fails any performance test return the instrument to the nearest Sales Service Office for repair Instrument Specification Specifications are the performance characteristics of the instrument that are certified and are the limits against which the equipment under test can be tested KI 734x 774x UM 4 Any changes in the specifications due to manufacturing changes design or traceability to NATA will be covered in a manual change supplement or revised manual Such specifications supersede any that were previously published General Instructions Perform each step in the order given using the corresponding test equipment Use Tables 1 3 to record general test details The SMF MMF test lead fiber type and PC APC connector polish must be matched to the instrument type Make sure that all optical connections are dry and clean DO NOT USE INDEX MATCHING OIL For cleaning use the cleaning instructions given in the section Optical Connector Make sure that all patch cords are fixed to the table so that they won t move during measurements Make sure that the ambient conditions are in the following ranges Temperature 21 3 45 to 75 To switch on the Device Under Test DUT for permanent operation hold the POWER key down for 3 seconds during turn on until PERM is shown in the display Relative humidity Y PERFORMANCE VERIFICATIO
34. cal connector care Use only high quality sealed alkaline batteries During prolonged storage remove batteries to eliminate the possibility of acid leakage During storage and transport keep the instrument in its carry case to protect against crushing vibration dust and moisture The instrument is resistant to normal dust and moisture however it is not waterproof If moisture gets into the instrument dry it out carefully before using it again Where possible keep instrument away from strong sunlight KI 734x 774x UM 4 Clean the instrument case using alcohol or other non solvent cleaning agents Acetone or other active solvents may damage the case The instrument housing is made of tough polycarbonate material with impact absorbing rubberised corner features and is therefore drop resistant Power Meter Limit an InGaAs or Ge power meter input to lt 15 dBm Limit the H3 power meter input to lt 30 dBm for 2 minutes ACCURACY CONSIDERATIONS All Measurements Keep optical connectors clean and in good condition APC connectors will generally provide improved power stability on single mode systems To reduce the effect of polarisation changes the fiber system should be neat coiled and physically stable In multimode systems modal noise and general uncertainty are much worse than in single mode systems Optinum measurement repeatability will be obtained by use of a standards compliant overfilled LED source
35. calibration constants can be re entered directly without using other equipment This is useful in case old calibration constants are to be put back Before commencing calibration e Clean all connectors very carefully KI 734x 774x UM 4 Ensure that all devices have been at a stable room temperature for over an hour and that the light source is fully warmed up at the to be calibrated Ensure that all installed batteries are good When calibration is complete remove the calibration shunt and place an anti tamper label over the aperture in the battery compartment Do no forget to update your calibration records and schedule the next due date System Rollback version 5 0 and above If in the event of wrong calibration constants being entered and stored or the instrument becoming otherwise corrupted all factory settings can be restored by the following method To restore all factory settings first enter CAL mode then press and hold RECALL MEMORY for 3 seconds Power Meter Calibration is a transfer process It is performed by setting up a singlemode laser source at a stable but non critical power level between 10 and 30 dBm and adjusting the meter reading to be the same value as that shown by a reference meter Y CALIBRATION amp MAINTENANCE Required are laser light sources with accurate calibrated A and good power stability a power meter with appropriate calibrated A singlemode test
36. connector Optical magnifying instruments increase eye hazard Always disconnect the source before using an optical magnifier The laser module has a built in safety circuitry which will usually disable the optical output in the event of a fault condition however this cannot be guaranteed An equipment assurance program is recommended to check for safe laser operation KI 734x 774x UM 4 Laser amp LED Safety Information Laser Fabry Perot or DFB Semiconductor Laser A 1270 1625 nm depending on model LED Surface emitting Semiconductor LED A 850 or 1300 100 nm depending on model Max CW output power lt 1 mW Minimum beam waist diameter 9 Minimum Numerical Aperture 0 1 Safety Class according to IEC 60825 1 1998 International amp 21 CFR 1040 10 1995 USA 850 1625 nm Class 1 Maximum Permissible Levels for various standards amp wavelengths IEC 60825 1 1998 2 1310 1550 nm 8 9 mW 10 mW 21 CFR 1040 10 1995 2 1310 1550 nm 2 mW 8 1 mW Note 1 Max CW output power is defined as the highest possible optical power that the Source can produce at its output connector Refer to specification sheet for actual operating power Note 2 Max permissible CW output power is the highest optical power that is permitted within the appropriate laser class Refer to specification sheet for actual operating power Y BATTERY amp EXTERNAL POWER These instruments are powered by two 1 5 V dry Alkaline C size or
37. ction or maintenance CATV LAN and R amp D applications e Quality assurance and acceptance testing e Automated testing using external PC software The KI 774x loss test sets provide a Two Way testing function in addition to the usual light source and power meter functions In addition the KI 734x test sets provide zero warm up sources CWDM source options and an integrated ORL testing function KI 734x 774x UM 4 The interchangeable optical connectors are drop protected during use are dust protected by a snap on cover and are easily disassembled for cleaning A wide variety of connector styles are available including LC MU and interchangeable connector styles Autotest mode enables automatic bi directional or two way multi A wavelength attenuation measurement The full feature ORL meter is suitable for acceptance testing of both components and installed cable systems These instruments feature very long battery life of 360 hours for the meter and 190 hours for the source The instruments have shock absorbent corners and a tough polycarbonate housing which has passed extensive drop testing Calibration can be performed by any suitably equipped laboratory without opening the instrument The recommended re calibration cycle is 3 years KITS PC reporting software allows real time instrument control amp data download and is easily customised to suit most languages and reporting requirements Real time display data
38. d can be put on hold for convenient data recording KI 734x 774x UM 4 Standard power meters work with fiber core diameter up to 100 micron with both PC and APC polish connectors Various detector options include Germanium Ge Indium Gallium Arsenide InGaAs Silicon Si and various attenuated versions The Ge detector is the most common detector for general use InGaAs detectors give much improved absolute accuracy compared to Ge detectors which are excessively sensitive to wavelength and temperature above 1580 nm This affects DWDM and CWDM applications Calibrations are available from 600 1650 nm and power levels from 27 to 70 dBm Calibrations cover all popular application wavelengths and CWDM calibrations are available from 1270 1610 nm in 20 nm increments Light Source features Multi wavelength sources have switchable wavelengths through one port which makes operation faster Laser sources are used for testing single mode fiber systems LED sources at 850 1300 nm are used for testing multimode fiber systems Optional LED source standards compliance is available The 1300 nm LED can also perform short distance single mode testing Y GENERAL SAFETY SUMMARY The following general safety precautions must be observed during all phases of operation service and repair of this instrument Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety
39. e connect the other test lead as below 37 The display should now read between 0 50 and 0 50 dB for all A s 38 Note the maximum displayed value for each A on Table 7 If this test fails clean the test leads and try again Or try a new set of test leads If it still fails the two way function requires re calibration PERFORMANCE VERIFICATION TESTS Two Way Loss Test Performance Verification 40 On the attenuator use to set the Ato 1310 nm or other continued table 7 A and SET then use to set the attenuation to 5 dB Two Way Linearity Test 41 Make sure that Autotest is still updating If it isn t the test has AOS failed If it is on Table 7 note the attenuation reading of the This test is a continuation of the previous procedure This part tests BUT at 1910 the range and linearity of the Two Way Autotest function rd 42 Single mode instruments Repeat the readings for attenuator 39 Re connect the equipment as shown in figure below Note that settings of 15 dB 25 dB and 35 dB multimode instruments require a multimode attenuator 43 Multimode instruments Repeat the readings for attenuator settings of 15 dB 20 dB ol S 44 Repeat for each additional A as required however this test 4 4 typically only needs performing at one wavelength 1 y N 0000 N 6000 4 1 A Smad a gt Failure of this test means that the instrument requires s
40. ent to a technician e Re assembly is the reverse of the previous procedure Ensure that the ribbon cable connectors are properly secured so they cannot shake loose This will be either a moulded rubber retainer or adhesive tape General electrical parameters are as follows Vss to GND 3V3 Vss 3V3 battery power down current about 0 2 mA active power meter current about 20 mA The laser current is unpredictable PERFORMANCE VERIFICATION TESTS All tests can be performed without access to the interior of the instrument The test equipment given corresponds to tests carried out with FC PC connectors on the DUT device under test The procedures in this section test the performance of a KI 7343A InGaAs Loss Test Set Due to the large number of possible instrument configurations it is not possible to give detailed test procedures for all options in this manual so some parameters may need adjusting to the appropriate specifications Required Equipment This is the required equipment for the performance test is listed Any equipment that satisfies the critical specifications of the equipment given in the table may be substituted for the recommended models Test Record Results of the performance test may be tabulated on a photocopy of the Test Record provided at the end of this test procedure It is recommended that you fill out the Test Record and refer to it while doing the test Alternatively a soft copy of this manual m
41. ervice LTS Power Meter KI7010A KI7020A Attenuator LTS Source KI 734x 774x UM 4 Y 46 PERFORMANCE VERIFICATION TESTS One Way Loss Test Performance Verification table 7 This tests One Way Autotest range and linearity for one loss test set and also verifies tone detector operation To test power meter absolute accuracy amp linearity refer to the Power Meter Section Accuracy Test 45 Connect the equipment as shown in figure below A single LTS can also be used with connections to both ports Note that multimode instruments require a multimode attenuator PU f O O O Lo ESO i 6666 y N 866 Y N 5555 4 2 ut LTS Power Meter KI7010A KI7020A Attenuator LTS Source KI 734x 774x UM 4 46 47 48 49 50 51 52 53 Switch instruments AUTOTEST the source and allow to warm up for a few minutes Use to set the attenuator to 1310 nm or other A and SET Use to set the attenuator to 5 dB Make sure that Autotest is still updating If it isn t the test has failed If it is on Table 7 note the attenuation reading of the DUT at 1310 nm Laser source with Ge or InGaAs meter Repeat the readings for attenuator settings of 15 dB 25 dB and 35 dB LED source with Ge or InGaAs meter Repeat the readings for attenuator settings of 15 dB 20 dB Laser source with H series m
42. eter Repeat the readings for an attenuator setting of 15 dB dB Repeat for each additional A as required however this test typically only needs performing at one wavelength Failure of this test means that the instrument requires service PERFORMANCE VERIFICATION TESTS ORL Verification Test for KI 734x Instrument with PC Connector table 8 This verification test uses artefacts supplied with the units PC APC test lead multimode or singlemode PC terminator OPT704 APC terminator OPT704A Very carefully clean all the optical connectors to be used and the left hand instrument port 54 Re set the meter to factory ORL defaults select SHIFT DEFAULTS then SET to store 55 To display ORL on the DUT select POWER RETURN LOSS and to select the active A 56 With nothing connected to the ORL port note the ORL reading 57 A reading of between 14 15 dB RL and 15 15 dB RL is within calibration specification 58 Repeat this step for additional 5 59 Plug the PC polish Low Reflection Terminator OPT704 into the ORL port and note down the reading KI 734x 774x UM 4 For singlemode instruments a reading between 35 and Lo dB RL indicates terminator and instrument are working correctly For multimode instruments a reading between 20 dB and Lo RL indicates terminator and instrument are working correctly 60 To verify the supplied PC APC test lead and OPT OPT704A APC terminator
43. gth needs to be matched to the measured wavelength or absolute errors may be excessive KI 734x 774x UM 4 Many systems are measured at 1390 nm to test for the water peak and at 1625 nm to measure the high end attenuation limit At 1625 nm the fiber attenuation is actually very sensitive to wavelength since the silica infra red absorption zone is reached So the wavelength tolerance of this particular laser is a major issue especially since many older source instruments have a tolerance of 30 nm ORL Measurements ORL measurements are typically divided into two classes 1 Acceptance of installed cable systems usually 20 35 dB This is generally easily accomplished with an ORL meter In these measurements the provided ORL terminator may be usefully placed at the far end of the system 2 Acceptance of components and patch leads which may involve levels well below this These measurements require an understanding of sources of reflection and require additional steps In Two Way mode the port isolation can be an important contributor to the noise floor A special instrument version has higher isolation for component acceptance testing Using this equipment very high throughput can be achieved in a factory environment When setting up ORL testing a strong understanding of both PC and APC connector reflection effects may be required Y ACCURACY CONSIDERATIONS Use of ORL Zero Function This function is very useful s
44. he Instr Preset key Test set up for the centre and spectral bandwidth KI 734x 774x UM 4 27 28 29 30 31 32 Press Auto Meas and wait until End of Automeasure is displayed Choose User and select the type of source to be measured FP for Fabry Perot laser To show the display in linear mode a Press Menu b Press Amptd on the left side of the display c Press Linear on the right side of the display To ensure interference free reading of the display it is advisable to stop the repeating calculations Press User Press Single Sweep If the trace on the display is not clear you can change resolution by using the span key From the displayed measurements check and note the values for mean Centre A and FWHM Spectral Bandwidth in Table 6 Repeat the test with the DUT set to additional Vs PERFORMANCE VERIFICATION TESTS Two Way Loss Test Performance Verification table 7 This tests the Two Way loss test accuracy range and linearity for a pair of instruments Two Way Calibration Test 33 Connect the instruments as shown in below using one test lead per instrument 34 On both instruments switch on set AUTOTEST and warm up for a few minutes 35 On both instruments push ABS REL then SET REF for 3 seconds The displays should read approximately 0 00 dB KI 734x 774x UM 4 36 On one instrument remove the test lead and r
45. he half power points of the laser assuming a Gaussian envelope of the spectral power distribution The half power points are those where the power spectral density is one half of the peak amplitude of the Gaussian curve 18 EPA ERE a AA MAA where sne center wavelength of laser diode in vacuum center Pot total power in watts tol P power of i longitudinal mode i A wavelength of longitudinal mode in vacuum M multiplication factor for a source with a Gaussian envelope M 2 35 for other types of spectra use M 2 35 as well 31 SPECIFICATIONS KI 734x amp KI 774x Source Specification ORL Specification 1310 Other LED Comments Laser LED 1550 nm lasers 4 1or2a 2 A source power dBm 7 7 Range 0 65 dB 0 60 dB 0 45 dB AT 48 i ii 26 1 dB or 4 power dBm 6 E Standard gt 30 dB Port Isolation Optional gt 50 dB gt 22 dB KI734X 15 Short term stability dB 0 03 0 05 0 01 no warm up A 3 C 0 50dB 05dB 0 45dB 05dB 0 30dB 05dB ORL accuracy 50 65 db 1 db 45 60 dB 1 dB 30 45 dB 1 dB KI774X Typ 15 min A after zero offset after zero offset after zero offset Short term stability dB 0 04 0 01 2 C after warm up Wavelength See source options See source options Note 3 Range
46. her end stop For regular work with bare fibers it is preferable to use an alternative arrangement such as a multimode pigtail with a v groove or mechanical splice CAUTION Do not scratch the detector lens with glass fiber end when using bare fiber adaptors or the instrument will be permanently damaged Y OPTICAL CONNECTOR Light Source Two Way ORL port A light source is either PC or APC connector specific This is determined when ordering the instrument and can only be changed at the factory CAUTION The use of bare fiber adaptors with the source is not recommended as permanent instrument damage will occur and very unstable measurements are likely How to clean the optical connectors Always clean the mating connector tip and ferrule before mating using approved materials CAUTION Do not attempt to clean an optical interface with anything hard that could scratch glass or permanent instrument damage may occur CAUTION Do not attempt to clean any connector when a very high power level eg gt 0 dBm is being emitted This is a dangerous work practice and above about 10 dBm can result in immediate amp permanent connector damage Light Source Two Way ORL port WARNING Be aware of and observe relevant optical safety requirement procedures Disable all sources when cleaning optical interfaces KI 734x 774x UM 4 Preferred Procedures To clean the interface without removing the adaptor you ca
47. his port is on the left hand side of the instrument After instrument turn on the light sources are always off Further operator intervention is always required to turn on a source On the KI 774x series instruments the light source requires a warm up period at the set wavelength to achieve specified stability On the KI 734x series instruments the specified stability is achieved with no warm up period On this port the Two Way Autotest ORL test or source functions depend on how the instrument is used See the following Autotest Light Source Manual Operation or ORL Meter Manual Operation sections for further information AUTOTEST OVERVIEW Overview Using these instruments Autotest provides easy to use Two Way Loss Testing with average loss displayed in real time For the KI 734x series instruments ORL testing is tightly integrated so that no extra effort is required to perform this test Refer to section Return Loss Meter Manual Operation for details on how to perform user offset and zero functions which can also be set in Autotest mode Autotest performs automated measurement and A detection by data exchange between instruments Minimal operator knowledge is needed Turn on the instrument s connect a test lead and select AUTOTEST on one instrument Subsequent operation is automated although some choices can be made for convenience Both local and remote referencing is supported
48. hunt and place a new sticker over the aperture Ys CALIBRATION amp MAINTENANCE Opening the Instrument Caution Do not open unless the warranty has expired and you are authorised to do so Opening the unit will invalidate any warranty claim There are no internal user adjustments All calibration is performed without opening the instrument The optical sensor connector assembly is not user serviceable This unit contains static sensitive devices Anti static handling procedures should be observed at all times when handling internal circuits Do not open this instrument unless you are familiar with handling optical fibers Disturbing the optical fiber assembly may result in instrument malfunction or damage Procedure Use static protected procedures Remove the batteries and leave the battery cover open Pull open the optical connector covers Place the instrument face down on a soft mat and undo the 6 screws in the rear housing KI 734x 774x UM 4 instrument can now be gently pulled apart The instrument will come into two halves joined by a ribbon cable The optical section is located in the upper half with the microprocessor supply calibration constants and controls in the lower half The hinged display cover can be removed at this point The ribbon connector can be disengaged to completely separate the instrument halves Further disassembly from this stage should be easily appar
49. ince it extends the practical linear measurement range by about 14 dB For typical mid range measurements it has a negligible effect on measurement noise For low level measurements it can cause up to 0 5 dB noise If this happens the solution is to reduce the residual light level further and re set the zero function KI 734x 774x UM 4 ACCURACY CONSIDERATIONS 1 2 5 Typical Power Meter Uncertainty dB due to 30 nm Bower Meter Wavelengih Dependence wavelength tolerance 1 1 5 InGaAs InGaAs 850 nm 0 10 0 46 1 30dB N gt 1300 1310 nm 0 06 0 01 dB Z 084 1550 nm 1 00 0 05 dB h E Ged gt E S me o 0 6 4 1 PZA 1 1 1 1 1 1 1 c Ge 25 oC o 2 1 1 1 BE 1 1 1 1 LI 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 t H Ld t t 1 t 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 Wavelength 734x 774x UM 4 Yoo SPECIFICATIONS DEFINITION OF TERMS Power Meter Power Range The range of input powers for which the instrument can be used Maximum Input Power The input power not to be exceeded to avoid destroying the instrument Uncertainty at Reference Conditions The uncertainty for the specified set of reference conditions including all uncertainties in the calibr
50. is less for PC connector After a zero offset range is 10 dB better than the residual level KI734X Max over Stability over temp dB 0 2 0 2 0 35 Temperature Optical Interface Specifications 06 035 Typical over Singlemode PC polish 9 fibre cores pen OMS TEMP temperature Core concentricity tolerance 0 25 A tolerance nm 20 6 5 30 At 25 C Singlemode APC polish 8 angle 9 um fibre cores 35 100 ici se lath fit 3 et FWHM typical Core concentricity tolerance 0 25 ym Multimode 62 5 um fibre cores 0 4 0 1 0 4 typical m Two Way Specification Reconnection 1 confid Repeatability dB Autotest Sensitivity gt 50 dBm Modulation 270 Hz 1 2 KHz 2 square wave Maximum operational detector power 5 dBm Laser output Adjustable over 6 dB in 0 01 dB steps Absolute maximum input power 15 dBm Note 1 For ORL lt 25 dB Note 2 1300 nm LED power into SMF gt 40 dBm KI 734x 774x UM 4 SPECIFICATIONS KI 734x Power Meter Specifications Detector Calibration A Response A Power Damage Autotest Mid range Calibration Polarisation Total Type Range Level Sensitivity Linearity Accuracy Sensitivity Uncertainty nm nm dBm dBm dBm dBm dB dB Si 600 650 660 780 850 980 350 1100 0 to 70 15 47 1 lt 0 005 0 3 780 10 to 65 45 820 850 980 1270 1290 1300 1310 2 as 1330 135
51. leads an anti tamper label and a 2 54 mm 0 1 programming jumper Check the calibration certificates on your reference equipment to ensure current validity Record the existing calibration offsets as follows Put the instrument in calibration mode Press POWER METER change procedure here to calibrate two way port to set the A and MAX MIN twice to display the offset Note the offset down for each Re enter known offsets at this point or calibrate the meter at the selected A as follows Measure and record the source power using the reference meter Transfer the same power level to the meter to be calibrated set MAX MIN to display power then to adjust the reading to match the noted reference reading Note The optical power is measured only when entering this mode It is not continuously updated Firmware version 5 00 continuously updates the measured power Set MAX MIN to read and note the new stored calibration offsets and then SET to store and exit or CANCEL to abandon and exit KI 734x 774x UM 4 back and check the source power with the reference meter to ensure source drift is within limits Remove the programming shunt and place a new sticker over the aperture Two Way Detector Calibration The two way measurement option has an internal power meter within the two way port in addition to the standard power meter port This is calibrated as follows
52. lect next X wavelength Two way test only press SELECT repeatedly to scroll details To exit memory display press MENU Simple Light Source Select POWER SOURCE then To change A or turn off press To activate modulation press Mod Modulation is cancelled in power meter mode To change modulation frequency while source is active press KHz SET or MENU To change laser power level while source is active press Level SET or MENU KI 734x 774x UM 4 Simple Power Meter To turn on amp select press POWER POWER METER to select A If source is on power meter A tracks source A To set reference press ABS REL and hold Set Ref for 3 seconds 3 buzzer sounds Meter displays about 0 00 dB R To stop start display update press HOLD If a test tone is detected meter will display Hz To display linear mode press dBm W To display MAX MIN values press MAX MIN repeatedly Hold MAX MIN to reset 3 buzzer sounds Return Loss Meter Model KI 734x only To display ORL to set the A Set up the residual ORL optical condition On the hidden keypad select SHIFT nf set to adjust if needed then MENU To display stored residual reference hold nf set key Set up the reference optical condition On the hidden keypad select SHIFT rl adj to adjust the display to the required value and MENU Offset value is shown o
53. logging and label printing functions are included For simpler loss test sets or sources and meters without the two way or ORL features refer to the KI 3000B KI 730x KI 74xx KI 760x and KI 770x series instruments Y INTRODUCTION amp APPLICATIONS These two way testers provide very high productivity for loss amp ORL testing of high density fiber optic systems and devices Two Way Loss ORL testing features Two Way ORL loss at both ends can be tested at up to 4 wavelengths in one operation providing major operational savings The ORL function includes user selectable offset and residual compensation functions which are typically used in component test applications The real time display update in this mode is unique and typically offers genuine time saving for users Power Meter features Superior measurement confidence is achieved with a unique Total Uncertainty Specification which covers the full temperature measurement and connector range A NATA traceable calibration certificate is supplied Warm up period range changing delays and user dark current zeroing are all eliminated The sensitive optical tone detector displays the actual measured tone frequency in Hz If a standard tone is detected the buzzer sounds which is useful for fiber identification and continuity testing Power stability testing can be performed using the max min recording function The display can show dBm dB and linear units an
54. n Mode UCAL Return loss is affected by twice the forward loss To compensate for this in a test jig Set up the reference optical condition On the hidden keypad select SHIFT RL ADJ The offset value is shown on the left of the display Select RL ADJ again to show reference only Then to adjust the display to the required value and SET to store A non zero value is always displayed on left of display Y STORING amp RECALLING READINGS Overview There are various ways of storing and recording data Meter Reference Value The power meter reference value for each A is stored in non volatile memory It is displayed on the left of the display when in relative dB mode Meter Display Hold To hold the display at its current value press HOLD Press HOLD again to continue updating the display Automatic MAX MIN Recording To display the minimum and maximum power meter or ORL value over a period access the hidden keypad and press MAX MIN The display will show the maximum and minimum values in sequence Press MAX MIN for 3 seconds to re set The function re sets when instrument parameters are altered Note This function records drift but may not accurately record transients faster than about 0 1 Hz due to the integrating data converter KI 734x 774x UM 4 User Memory The non volatile user memory stores test data which can then be displayed or downloaded to an Excel spreadsheet in the KIT
55. n left of display To re set the residual and reference conditions to default values select SHIFT DEFAULTS select POWER RETURN 1098 Y KI 734x 774x UM 4 KI 734x 774x UM 4 SP ES 9 RS232 Perm nn Source onoff ltiz 5502 LI lt lt lt Source Return Loss Power Meter Auto test Menu ModSet Ref Abs Rel Print Hold Hz x DISCLAIMER amp WARRANTY Information in this manual is given in good faith for the benefit of the user It cannot be used as the basis for claims against Kingfisher International or its representatives if accidental damage or inconvenience results from use or attempted repair of the equipment Kingfisher International products are guaranteed against defective components and workmanship for a period of 3 years from the date of delivery unless specifically stated in the original purchase contract or agreement This warranty excludes optical connectors or incorrect use Opening the instrument will invalidate the warranty Liability is limited solely to repair of the equipment KI 734x 774x UM 4 KINGFISHER INTERNATIONAL PTY LTD 30 Rocco Drive Scoresby Victoria 3179 Australia Phone 61 03 9757 4100 Fax 61 03 9757 4193 E mail sales kingfisher com au Website http www kingfisher com au Technical data is subject to change without notice as part of our program of continuous improvements Therefore please verify critical parameters before ordering Australian and in
56. n use a stick style connector cleaner for 1 25 or 2 5 mm ferrules This cleans both the adaptor and end face in one operation Alternatively first remove the interchangeable adaptor to access the glass interface Then blow away any dust or dirt with compressed air If this is not sufficient then clean the interface by rubbing a lint free lens cloth over the surface using small circular movements Power Meter port The glass power meter interface does not make contact with the inserted connector there is a slight air gap Therefore it will not wear and only needs occasional cleaning To clean the interface without removing the adaptor you can use a stick style connector cleaner for 1 25 mm ferrules This cleans both the adaptor and end face in one operation Alternatively first remove the interchangeable adaptor to access the glass interface Then use a soft brush alcohol air can or Blu Tac to remove dirt on the glass end face GETTING STARTED amp TURNING ON This and following sections show you how to use your instrument Check that the required optical connector adaptors have been fitted see previous Optical Connector section Put the batteries into the instrument see previous Battery Power section To turn the instrument on press the POWER button The display will come on and briefly displays the firmware version If the battery is low this will be indicated on the display with a bat
57. p CANCEL simultaneously for seconds The display shows clr Memory Capacity for Loss Test Sets Memory capacity is determined by the configuration of your instruments The following illustrates the working capacity of various configurations One Way 3 408 readings One Way 4 A readings 1 962 readings in Autotest Two Way 2 A readings 1 269 readings Two Way 3 A readings 874 readings Two Way 4 A readings 667 readings For example the memory capacity for a Two Way Test Set is 1 269 two way two A readings So the combined capacity of an instrument pair is 2 538 two way two A readings PC INTERFACE The PC interface can be used to access and control the instrument from an external computer All functions can be accessed remotely See next pages for available software USB Interface The USB interface requires only a standard USB A USB B cable as supplied though some USB software drivers may need to be installed on your PC before this application can be utilized RS232 interface The RS232 interface can be used in the same way as the USB interface and is found on older generation instruments The connection details of the instrument and connecting cables are as follows Some out of spec serial ports need a 10K resistor in the D connector across wires 1 amp 2 Wire 1 Screen Wire 2 Wire 3 Instrument Jack Plug Body Ring Tx Tip Rx 9 Pin D connector Pin 5 Gnd Pin 2 Rx Pin 3
58. r PC or APC Green is associated with APC connectors Order any number of additional adaptors Optional Interchangeable Connector Adaptors E2000 LSH blue OPT060 SMA 905 906 OPT082 E2000 LSH green OPT060G Universal 1 25mm LSA DIN 47256 1 Universal 2 5mm 81 LC F3000 OPT072 Metal Free OPT090 MU OPT080 To order metal free connector specify connector style OPT090 KI 734x 774x UM 4 Optional Accessories Power Pack 90 240V IEC OPT103B Carry case 2 instruments OPT153 USB RS232 converter OPT188 Instrument Options TIA IEC standard compliance for LED sources Class 1 91 CPR into 50 um fiber Center Wavelength and Spectral Width Including 50 amp 62 5 multimode mandrel wraps gt 50 dB ORL port isolation single mode OPT092 Please visit our web site at www kingfisher com au for other fiber optic test instruments CALIBRATION amp MAINTENANCE See section Getting Started amp Turning On to Re boot the microprocessor Turn on all display segments There are no internal user adjustments Calibration is performed without opening the instrument All Calibrations To enable calibration mode open the battery compartment remove the anti tamper label and insert a 2 54 mm 0 1 pitch programming shunt Manipulation of the shunt is easier with needle nose pliers The instrument will display CAL amp installed options View Inside Battery Compartment Known
59. s LEVEL or SELECT ONE WAY AUTOTEST OPERATION One Way Loss Testing This mode of operation will be achieved if a two way tester is used on its own or if various types of Autotest instruments are used This mode of operation is for Autotest sources meters or simple loss test sets and data communication is one way only Initiate Autotest Operation Turn on the instrument s and connect a test lead On the light source press AUTOTEST This is all that is required The meter automatically sets to the correct A and displays the absolute power in dBm with the wavelength displayed at the top right This display mode may show A depending on display type Alternatively to enter Autotest A Selection Mode press SHIFT before pressing AUTOTEST see previous description If a multi A light source is used the display rotates through all source wavelengths To display only one A at a time press to rotate the displayed wavelength or to return to the usual mode There may be some delay before the display is updated In this mode nm flashes to show that the A is locked The nominal source power transmitted from the source is displayed on the left hand side of the display KI 734x 774x UM 4 Press Abs Rel to make the meter display relative power dB R The reference value displays on the left side of the display Power Meter or Two Way Tester Light Source or Two Way tester Reference
60. standards of design manufacture and intended use of the instrument Kingfisher International assumes no liability for the customer s failure to comply with these requirements Before operation review the instrument and manual for safety markings and instructions You must follow these to ensure safe operation and to maintain the instrument in safe condition WARNING The WARNING sign denotes a hazard It calls attention to a procedure practice or the like which if not correctly performed or adhered to could result in injury or loss of life Do not proceed beyond a WARNING sign until the indicated conditions are fully understood and met CAUTION The CAUTION sign denotes a hazard It calls attention to an operating procedure or the like which if not correctly performed or adhered to could result in damage to or destruction of part or all of the product Do not proceed beyond a CAUTION sign until the indicated conditions are fully understood and met KI 734x 774x UM 4 Initial Inspection Inspect the shipping container for damage If there is damage to the container or cushioning keep them until you have checked the contents of the shipment for completeness and verified the instrument both mechanically and electrically The Performance Tests give procedures for checking the operation of the instrument If the contents are incomplete mechanical damage or defect is apparent or if an instrument does not pass the operator s
61. tandards compliance not the instruments involved so this issue is beyond the scope of this manual For simplicity we show one test lead y 15 TWO WAY ORL AUTOTEST OPERATION pass fail Remote Reference On both instruments independently they may be a long way from each other Connect the two way port to the power meter port of the same instrument Select POWER AUTOTEST Abs Rel hold Set Ref for 3 seconds Meters display about 0 00 dB R Remote reference set up Local Reference Connect the two way port of both instruments Select POWER AUTOTEST hold Set Ref for 3 seconds Meters display about 0 00 dB R ema um YA Y o A Y Om N 15559 16555 M SS Local Reference set up KI 734x 774x UM 4 Pass Fail Mode The Two Way pass fail mode is convenient for quick low skill acceptance testing It tests using all available loss and ORL wavelengths To set up the thresholds To set the loss threshold in meter mode press SHIFT LEVEL to adjust SET to save Alternatively if Default key is pressed the value defaults to 12 00 dB Press SET to save To set the ORL threshold in ORL mode press SHIFT LEVEL to adjust SET to save Alternatively if Default key is pressed the value defaults to 25 00 dB RL Press SET to save To use this mode In Two Way mode press LEVEL to enter Pass Fail display mode To exit pres
62. ted optical range An OTDR is better for some of these tests Available ORL test A are the fitted source A To verify correct operation of the ORL meter refer to the performance test section at the back of this manual Operation No warm up is needed Take particular care to ensure all connectors are clean To display ORL select POWER RETURN LOSS to change the A The ORL measurement will now be displayed in dB RL The following offsets may be used to improve accuracy To re set to factory defaults select SHIFT DEFAULTS then SET to store ORL Zero Function This compensates for stray residual reflections prior to making a low level measurement Using this feature the instrument can read accurately up to 10 dB below the stray reflection level however at KI 734x 774x UM 4 the expense of increased noise when making low level measurements Set up the stray optical condition A small diameter mandrel wrap is commonly used for this to block al light On the hidden keypad select SHIFT NF SET To display the stored value select MAX MIN Then to adjust the stored value and then SET to store Perform the zero function whenever the stray ORL condition may have changed These limitations apply If the zeroed value is x dB From x to x 10 dB resolution is limited to 0 1 dB From x to x 10 dB resolution is limited to 1 dB which is also the display range limit User Calibratio
63. ted or unregulated DC output 6 12V at 300 mA max Connection polarity ve pin Use of the external power supply disconnects the batteries as a safety precaution since accidental charging of alkaline cells is hazardous Rechargeable batteries must be removed for charging by an external charger Do not use lithium batteries or other batteries with a nominal voltage greater than 1 8 V The instrument may be damaged Protect our environment Some batteries notably nickel cadmium contain toxic heavy metals so please dispose of them by returning them to a re cycling centre Batteries purchased from Kingfisher agents can be returned to them for appropriate disposal OPTICAL CONNECTOR To access the optical connectors grasp a top corner of the instrument and pull off the cover Do this on both sides of the instrument The optical port is mounted on a swivel which allows the connector to be angled outwards for accessibility and then pushed back and covered with the snap cover to provide dirt and drop protection To install a through adaptor align the locating slot on the side of the through adaptor with that on the instrument connector and press it on To remove an adaptor on the latest model of these instruments press the release button on the back of the instrument and then pull off the adaptor It is easier to pull off the adaptor with a test lead in place since this gives better grip On older models without the release but
64. ternational patents granted USER NOTES KI 734x 774x UM 4
65. tery symbol To turn the instrument off press POWER again for 2 seconds To stop the instrument turning off 10 minutes after the last key press press and hold POWER for 3 seconds during turn on On and then Perm on the display indicates that the unit will stay on permanently These instruments have extra functions accessed via a hidden keypad to simplify training and support for inexperienced users To access this hidden keypad lift up the display cover The display cover can also be cleaned easily at this point To disable or enable the buzzer press and hold down the SHIFT button for 3 seconds Should the instrument fail to turn on the microprocessor may need re booting To do this remove the batteries and any other external power for at least 40 seconds To view all display segments during instrument turn on hold down the grey button at the bottom left of the display KI 734x 774x UM 4 Power Meter port This port is on the right hand side of the instrument After turn on the power meter performs a self calibration sequence and then displays absolute power in dBm at the previously set A If HI or LO are displayed the input is out of range The power meter requires no warm up and no user adjustment of dark current to achieve its specified performance See the following Autotest or Power Meter Manual Operation sections for further information Source Two Way ORL port T
66. ton move the connector port to its mid way point then pull off the adaptor Different styles of connector adaptor can be easily fitted by the user ST SC FC MU LC F3000 E2000 LSH and LSA DIN SMA When not in use keep the test port and connectors covered and away from dust Do not touch connector tips with your fingers since body oils and dirt can impair connector performance The supplied standard adaptors have ceramic sleeves to avoid connector metal dust contamination This contamination can cause KI 734x 774x UM 4 connector failure and fiber fuse at very high power levels Ceramic connector sleeves also work better in cold conditions CAUTION Do not use damaged or incompatible connectors WARNING If using a connector inspection microscope to inspect the optical interface be sure to always remove the batteries first to prevent accidental source operation Power Meter port This port can be used with both PC and APC connector styles For the power meter port 1 25 mm amp 2 5 mm universal adaptors are available However we recommend that these are not so convenient for regular use due to the possibility of measurement errors if a test lead becomes partially disengaged from the adaptor Bare fiber adaptors must achieve fiber eccentricity of 100 microns and an end tolerance of 300 microns relative to the ferrule end Preferred bare fiber adaptors consist of a connector with fiber retention device or ot
67. uture reference then press SET to store settings and exit or CANCEL to exit without storing settings Remove the programming shunt and place a new sticker over the aperture ORL Calibration Calibration is performed by setting up a known reflection condition and adjusting the reading accordingly KI 734x 774x UM 4 A convenient calibrated reflection is a good clean PC termination which will have a 14 65 dB glass air reflection This can be double checked easily by measuring more than one termination Required are a reflection an anti tamper label and a 2 54 mm 0 1 programming jumper Put the instrument in calibration mode On the meter to be calibrated record the existing calibration offsets as follows Select RETURN LOSS to set the A and MAX MIN twice to display the offsets Note them down or re enter known offsets at this point Attach the known reflection You may also want to add an allowance for twice the expected forward loss of the connection to the instrument This is just an estimate 0 2 dB is typical in which case set the display to 14 85 Set MAX MIN to display power then to adjust the reading to the required value Note The ORL is measured only when entering this mode It is not continuously updated Set MAX MIN to read and note the new stored calibration offsets and then SET to store and exit or CANCEL to exit without storing settings Remove the programming s
68. vailable laser sources except the KI 7300 Series Loss Test Set are sensitive to reflections Varying reflections can induce laser source instability of around 0 3 dB This is very difficult to verify without a special test system but can cause errors Due to emitter center A uncertainty eg 20 nm fiber attenuation may vary with different light sources Y ACCURACY CONSIDERATIONS DWDM Loss and Power Measurements The DWDM bands are typically within 1525 1610 nm For this application an InGaAs power meter detector gives much improved absolute accuracy compared to a Ge detector which is excessively sensitive to wavelength and temperature above 1580 nm An InGaAs detector calibrated at 1550 nm typically gives good absolute accuracy at all DWDM wavelengths Testing optical loss at 1610 or 1625 nm is common since this represents the worst case attenuation in most systems High power InGaAs detectors may be required to measure the system power level CWDM Loss and Power Measurements The CWDM band is from 1270 1610 nm at 20 nm spacing however 1490 1610 nm is more common since it avoids the water absorption peak at about 1383 nm The most common operating wavelengths for FTTH PON systems are currently 1310 1490 1550 nm The points raised about InGaAs and Ge detectors for DWDM also apply with the additional issue that Because of the broad operating wavelengths encountered the power meter calibration wavelen

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