Fluke OF-500-01 OptiFiber Technical Reference Handbook page 111

Event
WEAK SIGNAL
The signal is attenuated below
the background noise level
before the end event is reached.
NO FIBER
No fiber is attached or the fiber is
too short to measure.
NO SIGNAL
There is a problem with the
module.
Table 3-4. Event Types (cont.)
No fiber is attached to the OTDR port, the fiber is too short, or there is a bad
connector or broken fiber somewhere near the tester. May also occur if the fiber
has very high loss, or if the tester is in Manual OTDR mode and the PULSE WIDTH is
too narrow.
If the OTDR trace and event table show that the fiber is very short, check for bad
connections and broken fibers within a few meters of the tester.
No fiber is attached to the OTDR port, the fiber is too short, or there is a bad
connector or broken fiber somewhere near the tester.
Check for bad connections and broken fibers within a few meters of the tester.
If this continues to occur, contact Fluke Networks for assistance.
Looking at OTDR Test Results
Possible Causes and Solutions
3
Using the OTDR
3-35