Fluke CableAnalyzer DSX-5000, Техническое справочное руководство, Страница: 283 / 700

Chapter 9: Certify Fiber Cabling
Requirements for Reliable Fiber Test Results
247
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.