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 prod- uct which, in Fluke Networks’...
Page 4
DTX-MFM/GFM/SFM Fiber Modules Users Manual About Setting the Reference .................. 9 Using Mandrels for Testing Multimode Fiber ............10 Testing Your Patch Cords ..................11 Fiber Test Settings ......................12 Certifying Fiber Cabling ....................17 Autotest in Smart Remote Mode ................17 Autotest in Loopback Mode ...................
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).........
1310 nm and 1550 nm. The troubleshooting tips, and other support services. To DTX-GFM features a VCSEL LED for testing register, fill out the online registration form on the Fluke multimode cabling at 850 nm and 1310 nm for Networks website at www.flukenetworks.com/registration.
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.
Four 9/125 µm singlemode patch cords, 2 m, SC/SC DTX Series CableAnalyzer Users Manual. • Two 9/125 µm singlemode patch cords, 0.3 m, SC/SC • DTX-MFM/GFM/SFM Fiber Modules Users Manual Warning: Class 1 and Class 2 Laser Products • DTX CableAnalyzer Product CD •...
Page 11
Safety Information • • Never look directly into the visual fault locator Use a Fluke Networks FiberInspector Video output. Momentary exposure to the locator’s Microscope to periodically inspect the fiber output will not damage your eyes; however, module’s OUTPUT connector for scratches and direct, long-term exposure is potentially other damage.
DTX-MFM/GFM/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.
Getting Acquainted Physical Features Button for activating the visual fault locator (B) and output port (D). See “Using the Visual Fault Locator” on page 33 and “Autotest in Far End Source Mode” on page 28. Universal fiber connector (with dust cap) for the visual fault locator output. The connector accepts 2.5 mm ferrules.
• 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.
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.
DTX-MFM/GFM/SFM Fiber Modules Users Manual Using Mandrels for Testing Multimode Fiber The gray mandrels included with the DTX-MFM are compliant with TIA/EIA-568-B for 62.5 µm fiber with a You should use mandrels when testing multimode fiber 3 mm jacket. Mandrels for 50 µm fiber are available from with the DTX-MFM fiber modules.
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.
DTX-MFM/GFM/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
Fiber Test Settings 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, 850 nm/1310 nm, or 1310 nm/1550 nm).
Page 20
DTX-MFM/GFM/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/GFM/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 >...
Two ac adapters with line cords (optional) Mandrels. Recommended when testing multimode fiber Four patch cords (match fiber and connectors to be with DTX-MFM modules. See page 10. tested, SC at tester end) Fiber cleaning supplies Figure 5. Equipment for Testing in Smart Remote Mode...
Page 24
DTX-MFM/GFM/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 5 minutes. Allow additional time if the modules have the cabling to be tested.
Page 25
Smart remote EXIT TEST ENTER SAVE AUTO TEST SINGLE SETUP TEST SPECIAL MONITOR FUNCTIONS TEST * Mandrels used only for TALK TALK multimode fiber tested with the DTX-MFM modules amd47f.eps Figure 6. Smart Remote Mode Reference Connections (Modified Method B)
Page 26
DTX-MFM/GFM/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
Tester Smart remote EXIT TEST ENTER SAVE AUTO TEST SINGLE SETUP TEST SPECIAL MONITOR FUNCTIONS Mandrels used only for TEST TALK TALK multimode fiber tested with the DTX-MFM modules amd48f.eps Figure 7. Smart Remote Mode Test Connections (Modified Method B)
DTX-MFM/GFM/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
AC adapter with line cord (optional) Mandrel. Recommended when testing multimode fiber Two patch cords (match fiber and connectors to be with a DTX-MFM module. See page 10. tested, SC at tester end) Fiber cleaning supplies Figure 8. Equipment for Testing in Loopback Mode...
Page 30
DTX-MFM/GFM/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 ambient temperature.
Page 31
Certifying Fiber Cabling Adapter Mandrel used only for EXIT TEST multimode fiber tested with ENTER the DTX-MFM module SAVE Patch cords that match the fiber and AUTO TEST SINGLE SETUP TEST SPECIAL connectors to be tested with SC MONITOR FUNCTIONS...
Page 32
DTX-MFM/GFM/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 tested with the DTX-MFM module EXIT TEST ENTER SAVE AUTO TEST SINGLE SETUP TEST SPECIAL MONITOR FUNCTIONS TALK TALK amd24f.eps Figure 10. Loopback Mode Test Connections...
Two AC adapters with line cords (optional) Mandrel. Recommended when testing multimode fiber Two patch cords (match fiber and connectors to be with a DTX-MFM module. See page 10. tested, SC at tester end) Fiber cleaning supplies Figure 11. Equipment for Testing 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 Bi-directional: Does not apply to Far End Source 5 minutes. Allow additional time if the modules have mode. been stored above or below ambient temperature.
Page 36
If you disconnect the patch cord from the source’s 850 nm (DTX-MFM/GFM) or 1310 nm (DTX-SFM). Press output port after setting the reference, you must again to switch to 1300 nm (DTX-MFM), 1310 nm set the reference again to ensure valid (DTX-GFM), or 1550 nm (DTX-SFM).
Page 37
Smart remote TEST EXIT ENTER SAVE AUTO TEST SINGLE SETUP TEST SPECIAL MONITOR FUNCTIONS Mandrel used only for TEST multimode fiber tested with TALK TALK the DTX-MFM module amd68f.eps Figure 12. Far End Source Mode Reference Connections (Modified Method B)
Page 38
DTX-MFM/GFM/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...
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/GFM/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...
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), 850 nm and 1310 nm (DTX-GFM), or 1310 nm and amd57f.eps 1550 nm (DTX-SFM).
Page 43
Monitoring Optical Power Monitoring Optical Power Clean the tester’s input port and the patch cord and Select Power Meter. You do not need to select a fiber source connectors. type or test limit. Use the patch cord to connect the source to the tester’s Select the correct wavelength;...
Page 44
DTX-MFM/GFM/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...
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.
Follow the maintenance procedures given in the DTX Series CableAnalyzer Users Manual. You can use a DTX Series smart remote with a DTX-MFM or DTX-SFM fiber module as the remote for a Fluke Clean the optical connectors as described on page 8.
Certification, Compliance, and Regulatory Information Certification, Compliance, and Regulatory Information Conforms to relevant Australian standards N10140 Conforms to relevant European Union directives. Listed by the Canadian Standards Association. Laser safety OUTPUT port: Class 1 VFL port: Class 2 Complies with EN60825-1 and EN61010-1 (CE) and CFR21...
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 52
DTX-MFM/GFM/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)