DTX-MFM2 FLUKE NETWORKS, DTX-MFM2 Datasheet - Page 18

• Manufacturer Part Number: DTX-MFM2
• Description: DTX-MFM2 REPLACEMENT FOR DTX-MFM
• Manufacturer: FLUKE NETWORKS

Specifications of DTX-MFM2

• Multimode Fiber Module Set: ROHS COMPLIANT

DTX-MFM2/GFM2/SFM2 Fiber Modules
Users Manual
Reference values should not change by more than a few
tenths of a dB from day to day. Larger changes may
indicate a problem with the test reference cords or
connections.
See the sections on Smart Remote, Loopback, and Far End
Source modes for details on setting the reference for each
mode.
Selecting Test Reference Cords
The DTX Fiber Modules come with high-quality test
reference cords.
To ensure that your measurements are accurate and
repeatable, use test reference cords provided by Fluke
Networks or cords of the same quality. See "Replacing
Fiber Test Reference Cords" on page 50.
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Do not disconnect the test reference cords from
the testers' output ports after setting the
reference. Doing so may alter the amount of
optical power launched into the fiber and
invalidate the reference.
W
Caution
Testing Your Test Reference Cords
You must test your test reference cords at regular intervals.
Use the procedure given in Appendix A to test the cords
initially. After that, use the procedure given with the
procedures for certifying cabling to monitor the condition
of the cords.
Using Mandrels for Testing Multimode Fiber
You should use mandrels when testing multimode fiber
with the DTX-MFM2 fiber modules. Mandrels can improve
measurement repeatability and consistency. They also
allow the use of LED light sources to certify 50 µm and
62.5 µm fiber links for current and planned high bit-rate
applications, such as Gigabit Ethernet and 10 Gigabit
Ethernet.
Do not use mandrels when testing with the
DTX-GFM2 fiber modules.
W
Caution