5 troubleshooting, Solving common problems, 5troubleshooting – EXFO FTB-9100 for FTB-500 Optical Switch User Manual
Page 35
Optical Switch
29
5
Troubleshooting
Solving Common Problems
Problem
Possible cause
Recommended action
Insertion loss higher than
expected.
Dirty optical
connectors.
Clean all optical
connectors.
Improper wavelength
selected on other
instruments
Switch to the correct
wavelength on all
instruments being used.
Poor repeatability.
Optical source is
unstable.
Wait for source to stabilize.
—
Select Optimize for
Repeatability.
No optical continuity.
Switch is off.
Set the Continuity switch
to On.
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