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Fluke DTX-MFM User Manual

Fiber modules
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DTX-MFM/SFM
Fiber Modules
Users Manual
PN 2142235
April 2004
© 2004 Fluke Corporation. All rights reserved. Printed in USA.
All product names are trademarks of their respective companies.

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  • Page 1 DTX-MFM/SFM Fiber Modules Users Manual PN 2142235 April 2004 © 2004 Fluke Corporation. All rights reserved. Printed in USA. All product names are trademarks of their respective companies.
  • Page 2 LIMITED WARRANTY AND LIMITATION OF LIABILITY Each Fluke Networks product is warranted to be free from defects in material and workmanship under normal use and service. The warranty period is one year and begins on the date of purchase. Parts, accessories, product repairs and services are warranted for 90 days. This war-...

  • Page 3: Table Of Contents

    Contacting Fluke Networks ..................2 Accessing the Technical Reference Handbook ............2 Additional Resources for Cable Testing Information..........2 Unpacking ........................3 DTX-MFM Multimode Fiber Modules..............3 DTX-SFM Singlemode Fiber Modules ..............3 Safety Information......................4 Getting Acquainted ...................... 6 Installing and Removing Fiber Modules ..............
  • Page 4 DTX-MFM/SFM Fiber Modules Users Manual Using Mandrels for Testing Multimode Fiber ............10 Testing Your Patch Cords ..................11 Certifying Fiber Cabling ....................17 Autotest in Smart Remote Mode ................17 Autotest in Loopback Mode ................... 22 Autotest in Far End Source Mode ................28 Using the Visual Fault Locator ..................
  • Page 5 List of Figures Figure Title Page Installing and Removing Fiber Modules ................6 Fiber Module Features ......................7 Wrapping a Patch Cord Around a Mandrel................ 11 Example of How to Determine the Number of Adapters Setting ........14 Equipment for Testing in Smart Remote Mode ..............17 Smart Remote Mode Reference Connections (Modified Method B).........
  • Page 6 DTX-MFM/SFM Fiber Modules Users Manual...

  • Page 7: Overview Of Features

    • Overview of Features Visual fault locator helps you locate breaks, bad splices, bends, and check fiber continuity and The DTX-MFM and DTX-SFM fiber modules are used with polarity. a DTX Series CableAnalyzer to test and certify fiber optic •...

  • Page 8: Contacting Fluke Networks

    Handbook Note The DTX Series CableAnalyzer Technical Reference If you contact Fluke Networks about your tester, Handbook provides additional information on the tester have the tester's software and hardware version and the fiber modules. The handbook is available on the numbers available if possible.

  • Page 9: Unpacking

    Four 9/125 µm singlemode patch cords, 2 m, SC/SC DTX-MFM Multimode Fiber Modules • Two 9/125 µm singlemode patch cords, 0.3 m, SC/SC • Two DTX-MFM Fiber Modules for testing at 850 nm • DTX-MFM/SFM Fiber Modules Users Manual and 1300 nm •...

  • Page 10: Safety Information

    DTX-MFM/SFM Fiber Modules Users Manual • Safety Information Never start a test or activate the OUTPUT port or VFL port without first connecting a fiber to the Warning port you will use. • Never look directly into the visual fault locator To avoid possible fire, electric shock, or personal output.
  • Page 11 Neglecting this step or using improper procedures can cause unreliable test results and may permanently damage the connectors. • Use a Fluke Networks FiberInspector Video Microscope to periodically inspect the fiber module’s OUTPUT connector for scratches and other damage. •...

  • Page 12: Getting Acquainted

    DTX-MFM/SFM Fiber Modules Users Manual Getting Acquainted The following sections introduce the fiber modules’ features. Installing and Removing Fiber Modules Figure 1 shows how to install and remove the fiber modules. Caution Leave the module bay covers in place when the fiber modules are not installed.

  • Page 13: Physical Features

    W * Warning The LED below the connector is red when the output is active at 850 nm (DTX-MFM) or 1310 nm (DTX-SFM) and green for 1300 nm (DTX-MFM) or Never look directly into optical 1550 nm (DTX-SFM).

  • Page 14: Essentials For Reliable Fiber Test Results

    • Inspect connectors with a fiber microscope, such as Always clean and inspect fiber connectors before making the Fluke Networks FiberInspector Video Microscope connections. Use 99 %-pure isopropyl alcohol and before making connections. optical-grade wipes or swabs to clean connectors as Periodically clean fiber adapters with a swab and alcohol.

  • Page 15: About Setting The Reference

    Essentials for Reliable Fiber Test Results • About Setting the Reference Anytime the tester warns you that the reference is out of date. The reference serves as the baseline power level for loss • measurements. Regular referencing helps account for Anytime you see a negative loss measurement.

  • Page 16: Using Mandrels For Testing Multimode Fiber

    Fluke Networks. Refer to the appropriate standard for You should use mandrels when testing multimode fiber mandrel requirements if you follow other standards. with the DTX-MFM fiber modules. Mandrels can improve Table 1 shows a partial list of mandrel requirements for measurement repeatability and consistency. They also TIA and ISO standards.

  • Page 17: Testing Your Patch Cords

    Essentials for Reliable Fiber Test Results Place top wrap in groove under retainer Wrap 5 times in grooves Right: no bends at retainer Wrong: bends at retainer amd67f.eps Figure 3. Wrapping a Patch Cord Around a Mandrel Testing Your Patch Cords You should test your patch cords before each job.
  • Page 18 DTX-MFM/SFM Fiber Modules Users Manual Fiber Test Settings To access the fiber test settings turn the rotary switch to SETUP; then select Fiber. Use to see different tabs. Table 2 describes the test settings that apply to fiber cabling. Table 2. Fiber Test Settings...
  • Page 19 Essentials for Reliable Fiber Test Results Table 2. Fiber Test Settings (cont.) Setting Description SETUP > Fiber > 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;...
  • Page 20 DTX-MFM/SFM Fiber Modules Users Manual Smart Remote mode reference connections One adapter in each path. PASS TEST FAIL Example of Smart Remote mode test connections Loss of reference adapters removed during referencing. Measurement includes loss of 2 adapters in each path.
  • Page 21 See the Technical Reference Handbook or visit the Fluke Networks Knowledge Base for suggestions. Method C: Loss results exclude connections at the ends of the link. Only the fiber loss is measured.
  • Page 22 DTX-MFM/SFM Fiber Modules Users Manual Table 2. Fiber Test Settings (cont.) Setting Description SETUP > Fiber > The tester uses the index of refraction (n) defined in the currently selected fiber type (Default) or Index of Ref. Source (n) a value you define (User Defined). The default value defined by the selected fiber type >...

  • Page 23: Certifying Fiber Cabling

    Certifying Fiber Cabling Autotest in Smart Remote Mode Certifying Fiber Cabling 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 24 DTX-MFM/SFM Fiber Modules Users Manual Autotest in Smart Remote Mode • Turn on the tester and smart remote and let them sit for Connector Type: Select the connector type used in the 5 minutes. Allow additional time if the modules have cabling to be tested.
  • Page 25 Certifying Fiber Cabling Adapters Mandrel* Mandrel* Patch cords that match the fiber and connectors to be tested with SC at tester end PASS TEST FAIL TALK TONE Tester Smart remote EXIT TEST ENTER SAVE AUTO TEST SINGLE SETUP TEST SPECIAL MONITOR FUNCTIONS TEST...
  • Page 26 DTX-MFM/SFM Fiber Modules Users Manual Autotest in Smart Remote Mode (cont.) • Verify that the tester at the other end is on. (The Caution tester cannot activate a sleeping or powered-down If you disconnected the patch cords from the tester at the far end through the fiber modules.) tester’s or smart remote’s output port since setting...
  • Page 27 Certifying Fiber Cabling Short patch cords Patch cords Fiber link Patch cords Mandrel* Mandrel* PASS TEST FAIL TALK TONE Tester Smart remote EXIT TEST ENTER SAVE AUTO TEST SINGLE SETUP TEST SPECIAL MONITOR FUNCTIONS Mandrels used only for TEST TALK TALK multimode fiber amd48f.eps...

  • Page 28: Autotest In Loopback Mode

    DTX-MFM/SFM Fiber Modules Users Manual In this mode, the tester measures loss, length, and Autotest in Loopback Mode propagation delay at two wavelengths in one or both Use Loopback mode to test spools of cable, segments of directions. uninstalled cable, and patch cords.
  • Page 29 Certifying Fiber Cabling EXIT TEST ENTER SAVE AUTO SINGLE TEST SETUP TEST SPECIAL MONITOR FUNCTIONS TALK amd49f.eps Tester with fiber module One short patch cord (match fiber and connectors to be tested) Memory card (optional) Three adapters of the appropriate type AC adapter with line cord (optional) Mandrel.
  • Page 30 DTX-MFM/SFM Fiber Modules Users Manual Autotest in Loopback Mode • Turn on the tester and smart remote and let them sit for Connector Type: Select the connector type used in 5 minutes. Allow additional time if the modules have the cabling to be tested. Select General if the exact been stored above or below room temperature.
  • Page 31 Certifying Fiber Cabling Adapter Mandrel used EXIT TEST only for multimode ENTER fiber SAVE Patch cords that match the fiber and AUTO TEST SINGLE SETUP TEST SPECIAL connectors to be tested with SC MONITOR FUNCTIONS at tester end TALK amd50f.eps Figure 9.
  • Page 32 DTX-MFM/SFM Fiber Modules Users Manual Autotest in Loopback Mode (cont.) Press Caution If you disconnected the patch cord from the If bi-directional testing is enabled, the tester prompts tester’s output port since setting the reference, you to switch the fibers halfway through the test.
  • Page 33 Certifying Fiber Cabling Short patch cord Patch cords Fiber under test Adapters Mandrel used only for multimode fiber EXIT TEST ENTER SAVE AUTO TEST SINGLE SETUP TEST SPECIAL MONITOR FUNCTIONS TALK TALK amd24f.eps Figure 10. Loopback Mode Test Connections...

  • Page 34: Autotest In Far End Source Mode

    DTX-MFM/SFM Fiber Modules Users Manual Far End Source mode requires a stand-alone optical Autotest in Far End Source Mode source. Figure 11 shows the equipment required for Use Far End Source mode to measure loss at one testing fiber in Far End Source mode.
  • Page 35 Certifying Fiber Cabling Autotest in Far End Source Mode • Turn on the tester and smart remote and let them sit for Number of Adapters and Number of Splices: Enter 5 minutes. Allow additional time if the modules have the number of adapters and splices that will be been stored above or below room temperature.
  • Page 36 3 seconds to turn on the output port at If you disconnect the patch cord from the source’s 850 nm (DTX-MFM) or 1310 nm (DTX-SFM). Press again output port after setting the reference, you must to switch to 1300 nm or 1550 nm.
  • Page 37 Certifying Fiber Cabling Adapter Mandrel* OUTPUT INPUT Patch cords that match the fiber and port port connectors to be tested with SC at tester end Button activates output. See page 30. PASS TEST FAIL TALK TONE LOW BATTERY Tester Smart remote EXIT TEST ENTER...
  • Page 38 DTX-MFM/SFM Fiber Modules Users Manual Fiber link Short patch cord Patch cord Patch cord Mandrel** INPUT port Adapter OUTPUT port PASS TEST FAIL TALK TONE LOW BATTERY Tester Smart remote EXIT TEST ENTER SAVE AUTO TEST SINGLE SETUP TEST SPECIAL...

  • Page 39: Using The Visual Fault Locator

    Using the Visual Fault Locator Using the Visual Fault Locator PASS The fiber module includes a visual fault locator that helps TEST FAIL TALK you quickly check fiber continuity, trace fibers, and locate TONE LOW BATTERY faults along fibers and in connectors. EXIT TEST ENTER...
  • Page 40 DTX-MFM/SFM Fiber Modules Users Manual Using the Visual Fault Locator Clean the connectors on the patch cord, if used, and Look for the red light to locate fibers or faults (Figure 15): the fiber to be tested. • To check continuity or trace fiber connections, look Connect the fiber directly to the tester’s VFL port or...
  • Page 41 Using the Visual Fault Locator Continuity check/tracing fibers Press once: Press again: Press again: Blinking Microbend or broken fiber Broken fiber connector in connector Bad splice Tester or smart remote Sharp bend with fiber module amd23f.eps Figure 15. Using the Visual Fault Locator...

  • Page 42: Monitoring Optical Power

    SINGLE TEST mode: Measures power in the current remote end configuration (Smart Remote, Loopback, or Far End Source mode). Takes one power measurement at 850 nm and 1300 nm (DTX-MFM) or 1310 nm and 1550 nm (DTX-SFM). You can save the amd57f.eps power measurement in this mode.
  • Page 43 Monitoring Optical Power Monitoring Optical Power Clean the tester’s input port and the patch cord and Turn the rotary switch to MONITOR, then select Power source connectors. Meter. You do not need to select a fiber type or test limit. Use the patch cord to connect the source to the tester’s input port, as shown in Figure 17.
  • Page 44 DTX-MFM/SFM Fiber Modules Users Manual Fiber link OUTPUT INPUT Optical network interface card Monitoring optical power port or optical power source at the end of a link INPUT port EXIT TEST ENTER SAVE AUTO TEST SINGLE SETUP TEST SPECIAL MONITOR...

  • Page 45: Options And Accessories

    Options and Accessories and accessories visit the Fluke Networks website at Options and Accessories www.flukenetworks.com. Table 3 shows options and accessories available for the To order options or accessories, contact Fluke Networks DTX Series CableAnalyzers. For a complete list of options as described on page 2.
  • Page 46 DTX-MFM/SFM Fiber Modules Users Manual Table 3. Options and Accessories (cont.) Fluke Networks Option or Accessory Model Number ST/ST Singlemode Fiber Optic Adapter NF300SM SC/SC Singlemode Fiber Optic Adapter NF310SM ST/FC Simplex 62.5 µm 1m patch cord FOC-ST/FC ST/ST Simplex 62.5 µm 1m patch cord FOC-ST/ST ST/SC Simplex 62.5 µm 1m patch cord...

  • Page 47: Maintenance

    Clean the optical connectors as described on page 8. Core and cladding size: match the fiber to be tested • Connector polish: PC or UPC • Patch cord length: maximum 5 m To ensure optimum performance from your tester, get replacement patch cords from Fluke Networks.

  • Page 48: Using The Smart Remote With An Optifiber ™ Certifying Otdr

    Certifying OTDR Regulatory Information You can use a DTX Series smart remote with a fiber Conforms to relevant Australian module as the remote for a Fluke Networks OptiFiber standards Certifying OTDR. The DTX remote takes the place of a N10140...

  • Page 49: Appendix A: Test Method Reference Tables

    Appendix A: Test Method Reference Tables Industry standards use different names for equivalent test methods. Table A-1 shows the names used in this manual and by four common industry standards for the three fiber test methods Table A-1. Test Method Names Link End Connections This TIA/EIA-526-14A...
  • Page 50 DTX-MFM/SFM Fiber Modules Users Manual Table A-2 shows the test methods required by standards. Table A-2. Test Methods Required by Standards Standard or Test Method Standard or Test Method Application (as named in this manual) Application (as named in this manual)

  • Page 51: Index

    (Modified Method Autotest, 24 —B— B), 32 equipment, 23 Fiber Type, 12 Bi-Directional, 13 reference connections, 25 Fluke Networks results, 26 contacting, 2 test connections (Modified Method —C— Knowledge Base, 2 B), 27 loss is negative, 9 cautions, 4 cleaning connectors and adapters, 8 —I—...
  • Page 52 DTX-MFM/SFM Fiber Modules Users Manual —M— alternate connections, 15 —U— Far End Source mode, 30 mandrels, 10 Unknown (Smart Remote mode), 20 Loopback mode, 24 Method A, B, C, 15 Smart Remote mode, 18 when to set, 9 —V— registration, 1 —N—...

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