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Chapter 6: Certify Fiber Cabling
Autotest in Far End Source Mode
139
Step 2: Measure the Loss of the Test Reference
Cord
You Will Add

Caution
If you disconnected the test reference cord from
the output of the tester, you must set the
reference again to make sure your measurements
are reliable.
2-1
On the
SET REFERENCE
screen, when the reference procedure
is completed, tap
NEXT
.
2-2
Disconnect the test reference cord from the INPUT port on the
tester, then use a test reference cord and adapter to make the
connections to verify the TRCs, as shown on the screen and in
Figure 53.
2-3
Tap
TRC VERIFICATION
. The tester measures and saves the loss
of the test reference cord you added. The ID for this result
starts with “TRC”, shows the date and time of the test, and has
an for the test result.
The tester shows a warning if the loss of a TRC is more than
these limits:

Maximum loss for multimode TRCs
: 0.15 dB

Maximum loss for singlemode TRCs
: 0.25 dB
If the tester shows a warning, clean and inspect the
connectors on the TRC, then set the reference and do the
TRC verification again.