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FIBER O
S
NE
HOT
Display Features
When you press
troubleshooter looks for an optical signal on the fiber. If
there is a singlemode signal stronger than approximately
-29 dBm on the fiber, ACTIVE LINE blinks and the
troubleshooter will not do a test.
If ACTIVE LINE blinks, immediately disconnect the
troubleshooter from the fiber. Optical power levels
more than +7 dBm can cause damage to the detector
in the troubleshooter.
When the low battery symbol shows, replace the batteries
soon. See page 1.
The digits show the fiber length in feet, kilofeet, meters,
or kilometers.
2
P
Quick Reference Guide
RO
, CheckActive
W
shows and the
™
Caution
gmh01.eps
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