Chapter 9: Certify Fiber Cabling
Requirements for Reliable Fiber Test Results
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How to See the Reference Values
After you set the reference, tap View Reference on the SET
REFERENCE screen.
After you do an Autotest, tap the result window for a fiber,
then tap VIEW REFERENCE.
About Test Reference Cords and Mandrels
Use only test reference cords (TRCs) that have low loss:
Maximum loss for multimode TRCs: 0.15 dB
Maximum loss for singlemode TRCs: 0.25 dB
To make sure your test results are accurate as possible:
Inspect the endfaces of the TRCs every 24 to 48 tests and clean
them when necessary.
Use the TRC VERIFICATION wizard available for the 1 Jumper
method and 3 Jumper reference methods to measure the
losses of the TRCs. The losses of the TRCs are included in the
loss measurements for links, so you must make sure the losses
are very small. The wizard saves the results of the TRC tests to
show that your TRCs were good. IDs for these results start with
“TRC”, show the date and time of the test, and have an for the
test result.
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