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Fluke DTX-CLT CertiFiber User Manual

Optical loss test set
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DTX-CLT CertiFiber
®
Optical Loss Test Set
Users Manual
January 2010, Rev. 1 5/10
©2010 Fluke Corporation. All rights reserved.
All product names are trademarks of their respective companies.

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  • Page 1 DTX-CLT CertiFiber ® Optical Loss Test Set Users Manual January 2010, Rev. 1 5/10 ©2010 Fluke Corporation. All rights reserved. All product names are trademarks of their respective companies.
  • Page 2 90 days, unless otherwise stated. Ni-Cad, Ni-MH and Li-Ion batteries, cables or other peripherals are all considered parts or accessories. The warranty extends only to the original buyer or end user customer of a Fluke Networks authorized reseller, and does not apply to any product which, in Fluke Networks’...

  • Page 3: Table Of Contents

    Contents Title Page Overview of Features ....................1 Registration ........................1 Contacting Fluke Networks ..................2 Accessing the Technical Reference Handbook ............2 Additional Resources for Cable Testing Information ..........2 Unpacking ........................3 DTX-CertiFiber-M Multimode Kit ................3 DTX-CertiFiber-S Singlemode Kit ................3 DTX-CertiFiber-MS Multimode/Singlemode Kit ............
  • Page 4 DTX-CLT CertiFiber Optical Loss Test Set Users Manual About Setting the Reference .................. 17 Selecting Test Reference Cords ................18 Testing Your Test Reference Cords ................ 18 Using Mandrels for Testing Multimode Fiber ............18 Fiber Test Settings ......................21 About 1 Jumper Connections ..................
  • Page 5 Contents CSA Standards ......................65 Safety ........................66 Regulatory Information ..................66 Appendix A: How to Test Your Test Reference Cords ..........67 Appendix B: Test Method Reference Table ..............75 Appendix C: Modified 1 Jumper Method ..............77 Index...
  • Page 6 DTX-CLT CertiFiber Optical Loss Test Set Users Manual...

  • Page 7: List Of Figures

    List of Figures Figure Title Page Tester Front Panel Features ....................7 Tester Side and Top Panel Features ..................8 Smart Remote Features......................9 Fiber Module Features ......................10 SC, ST, LC, and FC Connector Adapters ................11 Installing the Connector Adapter..................12 Installing and Removing Fiber Modules ................
  • Page 8 DTX-CLT CertiFiber Optical Loss Test Set Users Manual Testing the Test Reference Cords in Loopback Mode ............41 Testing a Fiber in Loopback Mode (1 Jumper Method) ............. 43 Equipment for Testing in Far End Source Mode (1 Jumper Method) ......44 Far End Source Mode Reference Connections (1 Jumper Method)........

  • Page 9: Overview Of Features

    • Overview of Features Visual fault locator helps you locate breaks, bad splices, bends, and check fiber continuity and polarity. The DTX-CLT CertiFiber Optical Loss Test Set (OLTS) is a • FindFiber function helps you identify and verify fiber ™...

  • Page 10: Contacting Fluke Networks

    Handbook provides additional information on the tester numbers available if possible. and the fiber modules. The handbook is available on the CD included with your DTX-CLT CertiFiber and on the DTX www.flukenetworks.com CableAnalyzer product page on the Fluke Networks website.

  • Page 11: Unpacking

    Unpacking Unpacking DTX-CertiFiber-S Singlemode Kit • DTX-CLT CertiFiber with lithium-ion battery pack The DTX-CLT CertiFiber tester comes with the accessories • listed below. If something is damaged or missing, contact DTX-CLT CertiFiber SmartRemote with lithium-ion the place of purchase immediately.

  • Page 12: Safety Information

    DTX-CLT CertiFiber Optical Loss Test Set Users Manual • Safety Information Two DTX-SFM2 Fiber Modules for testing at 1310 nm and 1550 nm. Table 1 shows the international electrical symbols used on • Two 9/125 µm singlemode test reference cords, 2 m, the tester or in this manual.
  • Page 13 • Do not modify the tester. permanently damage your eyes. • Use only ac adapters approved by Fluke Networks • Keep the fiber module’s OUTPUT port covered for use with the DTX tester to charge the battery with a dust cap or keep a test reference cord or power the tester.
  • Page 14 DTX-CLT CertiFiber Optical Loss Test Set Users Manual • • Never look directly into the visual fault locator When using the fiber modules, use proper output. Momentary exposure to the locator’s cleaning procedures to clean all fiber connectors output will not damage your eyes; however, before every use.

  • Page 15: Physical Features

    Physical Features Physical Features LCD display with backlight and adjustable brightness. : Starts the currently selected test. : Saves Autotest results in memory. Rotary switch selects the tester’s modes. : On/off key. : Press to use the headset to talk to the person at the other end of the link.
  • Page 16 DTX-CLT CertiFiber Optical Loss Test Set Users Manual Fiber module. See Figure 4. Bail. USB port for uploading test reports to a PC and for updating the tester’s software. Headset jack for talk mode. Connector for the ac adapter. The LED turns on when the tester is connected to ac power.
  • Page 17 Physical Features Pass LED lights when a test passes. Test LED lights during cable tests. Fail LED lights when a test fails. Talk LED lights when the smart remote is in talk mode. Press to adjust the volume. The TONE LED is not used for tests on fiber cabling. Low battery LED lights when the battery is low.
  • Page 18 DTX-CLT CertiFiber Optical Loss Test Set Users Manual Button for activating the visual fault locator (B) and output port (D). See “Using the Visual Fault Locator” on page 52 and “Autotest in Far End Source Mode” on page 44. Universal fiber connector (with dust cap) for the visual fault locator output.

  • Page 19: Installing The Connector Adapter

    (Figure 5). Additional adapter styles may be available. • Store the connector adapters for the fiber module Check the Fluke Networks web site for updates. in the canisters provided. • Do not touch the photodiode lens (see Figure 6).
  • Page 20 DTX-CLT CertiFiber Optical Loss Test Set Users Manual amd99f.eps Figure 6. Installing the Connector Adapter...

  • Page 21: Installing And Removing Fiber Modules

    Physical Features Installing and Removing Fiber Modules Figure 7 shows how to install and remove the fiber modules. Caution To prevent damage to the module connectors, always keep fiber modules installed in the testers. gfd34f.eps Figure 7. Installing and Removing Fiber Modules...

  • Page 22: Powering The Tester

    DTX-CLT CertiFiber Optical Loss Test Set Users Manual • Powering the Tester If the battery does not reach full charge within 6 hours, the battery LED flashes red. Verify that the battery was • You may charge the battery when it is attached or within the temperature range given above during detached from the tester.
  • Page 23 Localizing the Tester PASS TEST 84 % - 100 % FAIL PASS TALK 67 % - 83 % TONE TEST 51 % - 66 % LOW BATTERY FAIL 34 % - 50 % TALK TEST 18 % - 33 % TALK TONE 0 % - 17 %...

  • Page 24: Essentials For Reliable Fiber Test Results

    DTX-CLT CertiFiber Optical Loss Test Set Users Manual Essentials for Reliable Fiber Test Push the swab into the connector; twist it around 3 to 5 times against the endface, then remove and dispose Results of the swab. To get reliable fiber test results, you must follow proper...

  • Page 25: About Setting The Reference

    • Inspect connectors with a fiber microscope, such as the Anytime the tester warns you that the reference is out Fluke Networks FiberInspector Video Microscope of date. before making connections. • Anytime you see a negative loss measurement. (See the Technical Reference Handbook for more Always cover unused connectors with protective caps.

  • Page 26: Selecting Test Reference Cords

    Do not use mandrels when testing with the To ensure that your measurements are accurate and DTX-GFM2 fiber modules. repeatable, use test reference cords provided by Fluke Networks or cords of the same quality. See "Replacing Fiber Test Reference Cords" on page 61.
  • Page 27 3 mm jacket. Mandrels for 62.5 µm fiber are available from Figures 13 through 23. Fluke Networks. Refer to the appropriate standard for In the reference and test connection diagrams shown on mandrel requirements if you follow other standards. Table the tester, mandrels are indicated by a loop in the fiber.
  • Page 28 DTX-CLT CertiFiber Optical Loss Test Set Users Manual Place top wrap in groove under retainer Wrap 5 times in grooves Right: no bends at retainer Wrong: bends at retainer amd67f.eps Figure 10. Wrapping a Test Reference Cord Around a Mandrel...

  • Page 29: Fiber Test Settings

    Table 3 describes the test settings that apply to fiber tabs. cabling. Note The Twisted Pair, Coax, and Network settings do not apply to the DTX-CLT CertiFiber tester. Table 3. Fiber Test Settings Setting Description SETUP > Fiber Loss >...
  • Page 30 DTX-CLT CertiFiber Optical Loss Test Set Users Manual Table 3. Fiber Test Settings (cont.) Setting Description SETUP > Fiber Loss > When enabled in Smart Remote or Loopback mode, the tester prompts you to swap the test Bi-Directional connections halfway through the test. The tester can then make bi-directional measurements for each fiber at each wavelength (850 nm/1300 nm, 850 nm/1310 nm, or 1310 nm/1550 nm).
  • Page 31 Fiber Test Settings gfd09f.eps Figure 11. Example of How to Determine the Number of Adapters Setting (singlemode example; mandrels not used)
  • Page 32 DTX-CLT CertiFiber Optical Loss Test Set Users Manual Table 3. Fiber Test Settings (cont.) Setting Description SETUP > Fiber Loss > Loss results include connections added after referencing. The reference and test connections Test Method determine which connections are included in results. The Test Method refers to the number of end connections included: 2 Jumper: Loss results include one connection at one end of the link.
  • Page 33 Fiber Test Settings Table 3. Fiber Test Settings (cont.) Setting Description SETUP > Fiber Loss > The tester uses the index of refraction (n) defined in the currently selected fiber type (Default) Index of Ref. Source or a value you define (User Defined). The default value defined by the selected fiber type (n) >...

  • Page 34: About 1 Jumper Connections

    Series CableAnalyzer Technical Reference Handbook or fiber module's output port must not be disconnected after visit the Fluke Networks Knowledge Base for suggestions. the reference is set. Using connector adapters that match the connectors in the fiber under test lets you connect to the fiber without disturbing the output port connection.

  • Page 35: Preparing To Save Tests

    Preparing to Save Tests Preparing to Save Tests Check the memory space available: Enter job information: Turn the rotary switch to SPECIAL FUNCTIONS; then On the Instrument Settings menu press to show the select Memory Status. tab with the Operator, Site, and Company names. To enter a new name, select a setting, press Create;...

  • Page 36: Certifying Fiber Cabling

    DTX-CLT CertiFiber Optical Loss Test Set Users Manual Certifying Fiber Cabling Autotest in Smart Remote Mode Use Smart Remote mode to test and certify dual-fiber The Autotest runs the tests required to certify that fiber cabling. In this mode, the tester measures loss, length, and cabling meets a particular standard.
  • Page 37 Certifying Fiber Cabling gfd10f.eps Tester and smart remote with fiber modules and Two singlemode adapters of the appropriate type connector adapters installed. Match connector adapters Two mandrels. Recommended when testing multimode to the connectors in the link. fiber with DTX-MFM2 modules. See page 18. Two ac adapters with line cords (optional) Fiber cleaning supplies Test reference cords.
  • Page 38 DTX-CLT CertiFiber Optical Loss Test Set Users Manual Autotest in Smart Remote Mode: Set the Reference • Connector Type: Select the connector type used in the Turn on the tester and smart remote and let them sit for 5 minutes. Allow additional time if the modules cabling to be tested.
  • Page 39 Certifying Fiber Cabling gfd11f.eps Figure 13. Setting the Reference in Smart Remote Mode (1 Jumper Method)
  • Page 40 DTX-CLT CertiFiber Optical Loss Test Set Users Manual Autotest in Smart Remote Mode: Make Sure Your Test Reference Cords are Good Caution Multimode test reference cord: 850 nm: 0.11 dB or less If you disconnected the test reference cords from the tester’s or smart remote’s output, you must...
  • Page 41 Certifying Fiber Cabling gfd26.eps Figure 14. Testing the Test Reference Cords in Smart Remote Mode...
  • Page 42 DTX-CLT CertiFiber Optical Loss Test Set Users Manual Autotest in Smart Remote Mode: Test the Fiber Link • Verify that the tester at the other end is on. (The Caution tester cannot activate a sleeping or powered-down If you disconnected the test reference cords from tester at the far end through the fiber modules.)
  • Page 43 Certifying Fiber Cabling gfd12.eps Figure 15. Testing a Fiber Link in Smart Remote Mode (1 Jumper Method)

  • Page 44: Autotest In Loopback Mode

    DTX-CLT CertiFiber Optical Loss Test Set Users Manual Autotest in Loopback Mode In this mode, the tester measures loss, length, and propagation delay at two wavelengths in one or both Use Loopback mode to test spools of cable, segments of directions.
  • Page 45 Certifying Fiber Cabling gfd13f.eps Tester with fiber module and connector adapter installed Two singlemode adapters of the appropriate type (match connector adapter to the connectors in the link) Mandrel. Recommended when testing multimode AC adapter with line cord (optional) fiber with a DTX-MFM2 module. See page 18. Test reference cord.
  • Page 46 DTX-CLT CertiFiber Optical Loss Test Set Users Manual Autotest in Loopback Mode: Set the Reference • Connector Type: Select the connector type used in Turn on the tester and smart remote and let them sit for 5 minutes. Allow additional time if the modules have the cabling to be tested.
  • Page 47 Certifying Fiber Cabling gfd14f.eps Figure 17. Setting the Reference in Loopback Mode (1 Jumper Method)
  • Page 48 DTX-CLT CertiFiber Optical Loss Test Set Users Manual Autotest in Loopback Mode: Make Sure Your Test Reference Cords are Good Caution Multimode test reference cord: 850 nm: 0.11 dB or less If you disconnected the test reference cord from the tester’s output, you must set the reference 1300 nm: 0.10 dB or less...
  • Page 49 Certifying Fiber Cabling gfd27.eps Figure 18. Testing the Test Reference Cords in Loopback Mode...
  • Page 50 DTX-CLT CertiFiber Optical Loss Test Set Users Manual Autotest in Loopback Mode: Test the Fiber Caution 13 Press If you disconnected the test reference cord from 14 If bi-directional testing is enabled, the tester prompts the tester’s output port, you must set the you to switch the fibers halfway through the test.
  • Page 51 Certifying Fiber Cabling gfd15f.eps Figure 19. Testing a Fiber in Loopback Mode (1 Jumper Method)

  • Page 52: Autotest In Far End Source Mode

    DTX-CLT CertiFiber Optical Loss Test Set Users Manual Autotest in Far End Source Mode Far End Source mode requires a stand-alone optical source. Figure 20 shows the equipment required for testing fiber Use Far End Source mode to measure loss at one in Far End Source mode.
  • Page 53 Certifying Fiber Cabling Autotest in Far End Source Mode: Set the Reference • Bi-directional: Does not apply to Far End Source Turn on the tester and smart remote and let them sit for 5 minutes. Allow additional time if the modules have mode.
  • Page 54 DTX-CLT CertiFiber Optical Loss Test Set Users Manual Autotest in Far End Source Mode: Set the Reference (cont.) Hold down the button on the smart remote’s fiber Turn the rotary switch to SPECIAL FUNCTIONS, then module for 3 seconds to turn on the output port at select Set Reference.
  • Page 55 Certifying Fiber Cabling gfd17f.eps Figure 21. Far End Source Mode Reference Connections (1 Jumper Method)
  • Page 56 DTX-CLT CertiFiber Optical Loss Test Set Users Manual Autotest in Far End Source Mode: Make Sure Your Test Reference Cords are Good Caution Multimode test reference cord: 850 nm: 0.11 dB or less If you disconnected the test reference cord from the tester’s output, you must set the reference...
  • Page 57 Certifying Fiber Cabling gdf28.eps Figure 22. Testing the Test Reference Cords in Far End Source Mode...
  • Page 58 DTX-CLT CertiFiber Optical Loss Test Set Users Manual Autotest in Far End Source Mode: Test the Fiber Caution 13 Turn the rotary switch to AUTOTEST, press ; then select the wavelength set on the smart remote. If you disconnected the test reference cord from the source’s output port, you must set the...
  • Page 59 Certifying Fiber Cabling gfd18f.eps Figure 23. Testing a Link in Far End Source Mode (1 Jumper Method)

  • Page 60: Using The Visual Fault Locator

    DTX-CLT CertiFiber Optical Loss Test Set Users Manual Using the Visual Fault Locator The fiber module includes a visual fault locator that helps you quickly check fiber continuity, trace fibers, and locate faults along fibers and in connectors. The visual fault locator port accepts connectors with 2.5 mm ferrules (SC, ST, or FC).
  • Page 61 Using the Visual Fault Locator Using the Visual Fault Locator Clean the connectors on the test reference cord, if used, Look for the red light to locate fibers or faults (Figure and the fiber to be tested. 25): • To check continuity or trace fiber connections, look Connect the fiber directly to the tester’s VFL port or connect using the test reference cord.
  • Page 62 DTX-CLT CertiFiber Optical Loss Test Set Users Manual gfd20f.eps Figure 25. Using the Visual Fault Locator...

  • Page 63: Monitoring Optical Power

    Monitoring Optical Power Monitoring Optical Power The power meter lets you monitor the optical power produced by a source such as an optical network interface card or optical test equipment. The tester offers two versions of the power meter function: •...
  • Page 64 DTX-CLT CertiFiber Optical Loss Test Set Users Manual Monitoring Optical Power Clean the tester’s input port and the test reference cord Select Power Meter. You do not need to select a fiber and source connectors. type or test limit. Use the test reference cord to connect the source to the Select the correct wavelength;...
  • Page 65 Monitoring Optical Power gfd22f.eps Figure 27. Connections for Monitoring Optical Power...

  • Page 66: Cable Id Options

    DTX-CLT CertiFiber Optical Loss Test Set Users Manual Cable ID Options To create a list of sequential IDs, do the following: On the Auto Sequence screen, select a template. You can select cable IDs from a pre-generated list or you can create an ID after each test.

  • Page 67: Memory Functions

    Delete; then press Yes. The DTX-CLT CertiFiber can store a minimum of 3300 • To delete all results in the current folder, the current Autotest results from single or bi-directional tests on fiber folder, or all results in the tester (internal memory), cabling.

  • Page 68: Options And Accessories

    Options and Accessories Details about using LinkWare software are provided in the LinkWare Getting Started Guide and the online help For a complete list of options and accessories visit the Fluke available under Help on the LinkWare menu. Networks website at www.flukenetworks.com.

  • Page 69: Maintenance

    Test reference cord length: maximum 5 m tester’s calibration and compromise its accuracy. If To ensure optimum performance from your tester, get the calibration is void, cable manufacturers might replacement test reference cords from Fluke Networks. not extend their warranty to the cabling you install.

  • Page 70: Factory Calibration

    To get a software update, download the update from the Select Utilities > DTX Utilities > Software Update from Fluke Networks website or contact Fluke Networks to get the LinkWare menu, locate and select the .dtx (DTX the update by other means.
  • Page 71 FUNCTIONS; then select Version Information. Updating the Limits or Cable Types Database Fluke Networks may release a test limits or cable types database that is not part of a software update. To install a new database in your tester, use the Modify DTX Test Limits utility in LinkWare software.

  • Page 72: Retraining The Battery Gauge

    DTX-CLT CertiFiber Optical Loss Test Set Users Manual Retraining the Battery Gauge The accuracy of the battery gauge may drift over time if the battery is frequently recharged before being fully discharged. Retraining the battery gauge restores its accuracy. Retraining can take 17 to 30 hours. The time is shorter if you start with the batteries discharged and modules (such as the fiber module) installed in the main and remote testers.

  • Page 73: Using The Smart Remote With An Optifiber Certifying Otdr

    OptiFiber loss/length directives. option in Smart Remote mode. You can buy a smart remote separately for this purpose. See the Fluke Listed by the Canadian Standards Networks website or contact Fluke Networks for details.

  • Page 74: Safety

    DTX-CLT CertiFiber Optical Loss Test Set Users Manual Safety CAN/CSA-C22.2 No. 1010.1-92 + Amendment 2: 1997; Overvoltage Category II, Pollution degree 2, 30 V. EN61010, 2nd Edition, MEASUREMENT (Installation) CATEGORY I, Pollution Degree 2 per IEC1010-1 refers to the level of Impulse Withstand Voltage protection provided.

  • Page 75: Appendix A: How To Test Your Test Reference Cords

    After you do the test given in this Appendix, use the procedure given with the procedures for certifying cabling to monitor the condition of the cords. ShopFlukeNetworks 1.877.766.5412 Shop for Fluke Networks products at:...
  • Page 76 DTX-CLT CertiFiber Optical Loss Test Set Users Manual gfd173.eps Tester with a fiber module and a connector adapter A test reference cord that you are sure is good. One installed. Use the connector adapter that connects to connector is SC. The other connector is the same as on the cords you will test.
  • Page 77 Connector Type: Select the type of connector that is on the cords you will test ANSI/TIA-568-C TIA-568-C TIA-568-C • Multimode Singlemode ISP Test Method: 1 Jumper ISO/IEC 14763-3 ISO/IEC 14763-3 ISO/IEC 14763-3 ShopFlukeNetworks 1.877.766.5412 Shop for Fluke Networks products at:...
  • Page 78 DTX-CLT CertiFiber Optical Loss Test Set Users Manual 2. Clean and Inspect the Connectors 2-2 After you clean an endface, use a fiber microscope to examine the endface. Figure A-2 shows examples of 2-1 Test reference cords must have endfaces that are clean what you can see with a fiber microscope.
  • Page 79 Figure A-3. Reference Connections better than -8.00 dBm (for example, -7.50 dBm is a better value) If the value is not good, do the reference procedure again with a different test reference cord. ShopFlukeNetworks 1.877.766.5412 Shop for Fluke Networks products at:...
  • Page 80 DTX-CLT CertiFiber Optical Loss Test Set Users Manual 4. Test the Cord in Both Directions 5. Read the Loss Measurements 4-1 Disconnect the test reference cord from the INPUT port Compare the loss measurement for each direction to these of the tester (Figure A-4, limits: •...
  • Page 81 Appendix A: How to Test Your Test Reference Cords gfd171.eps Figure A-4. Connections for Testing a Test Reference Cord ShopFlukeNetworks 1.877.766.5412 Shop for Fluke Networks products at:...
  • Page 82 DTX-CLT CertiFiber Optical Loss Test Set Users Manual ShopFlukeNetworks 1.877.766.5412 Shop for Fluke Networks products at:...

  • Page 83: Appendix B: Test Method Reference Table

    2 Jumper Method A Method A.2 Method 1 Method A2 2 connections 1 Jumper Method B Method A.1 Method 2 Method A1 None 3 Jumper Method C Method A.3 Method 3 Method A3 ShopFlukeNetworks 1.877.766.5412 Shop for Fluke Networks products at:...
  • Page 84 DTX-CLT CertiFiber Optical Loss Test Set Users Manual ShopFlukeNetworks 1.877.766.5412 Shop for Fluke Networks products at:...

  • Page 85: Appendix C: Modified 1 Jumper Method

    To test links with different connectors at each end, visit the connector adapters that match the connectors in the fiber Fluke Networks Knowledge Base for suggestions. under test. This method lets you connect to the fiber without disturbing the fiber modules' output connections after setting the reference.
  • Page 86 DTX-CLT CertiFiber Optical Loss Test Set Users Manual gfd24f.eps Figure C-1. Modified 1 Jumper Method: Smart Remote Mode Reference Connections ShopFlukeNetworks 1.877.766.5412 Shop for Fluke Networks products at:...
  • Page 87 Appendix C: Modified 1 Jumper Method gfd23f.eps Figure C-2. Modified 1 Jumper Method: Smart Remote Mode Test Connections ShopFlukeNetworks 1.877.766.5412 Shop for Fluke Networks products at:...
  • Page 88 DTX-CLT CertiFiber Optical Loss Test Set Users Manual ShopFlukeNetworks 1.877.766.5412 Shop for Fluke Networks products at:...

  • Page 89: Index

    Index —$— Smart Remote mode connections See also Smart Remote, Loopback, $ in cable IDs —B— or Far End Source mode. 1, 2, 3 Jumper —Numerics backbone template alternate backlight connector adapter 1 Jumper method battery cleaning modified charging and status illustration of SC, ST, LC, and FC standard retraining the battery gauge...
  • Page 90 DTX-CLT CertiFiber Optical Loss Test Set Users Manual —D— —I— —N— database for limits and cable types index of refraction negative loss Date installation and removal None deleting results and folders Number of Adapters —K— display Number of Splices Numeric Format keys —F—...
  • Page 91 Index Remote End Setup new limit database Test Method —S— 1 Jumper, 2 Jumper, 3 Jumper names safety test reference cord standards replacement SC connector adapter testing settings Time setup battery —U— local settings SFF (small form factor) connectors Unknown (Smart Remote mode) Smart Remote mode updating the software software...
  • Page 92 DTX-CLT CertiFiber Optical Loss Test Set Users Manual...

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