7 troubleshooting, Solving common problems, 7troubleshooting – EXFO IQS-9100 Optical Switch for IQS-500/600 User Manual
Page 63
Optical Switch
57
7
Troubleshooting
Solving Common Problems
Problem
Possible cause
Recommended action
LED push button does not
light up.
Power not on.
Check AC power cord and
turn on the
Module is not properly
inserted.
Turn off the, then remove
and reinsert the module.
Computer is locked
up.
Reboot the .
LED is burnt.
Call EXFO.
Pushing the LED push
button does not open the
module main window.
Computer is locked
up.
Reboot the .
Impossible to open a
window.
Too many windows
are open at the same
time.
Close unused windows,
then try to reopen the
window.
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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