9 troubleshooting, Solving common problems, 9troubleshooting – EXFO IQS-2400 WDM Laser Source for IQS-500/600 User Manual
Page 75

WDM Laser Source
69
9
Troubleshooting
Solving Common Problems
Problem
Probable Cause
Recommended Action
LED push button does not
illuminate.
Power not on.
Check AC power cord and turn on
the controller and expansion units.
Module is not
properly inserted.
Turn off the controller and expansion
units, remove and reinsert the
module.
Computer is
locked up.
Reboot the controller unit.
LED is burnt.
Contact EXFO.
Pushing the LED push
button does not open the
module main window.
Computer is
locked up.
Reboot the controller unit.
Source appears unstable.
Insufficient
stabilization time.
Wait a minimum of 60 minutes for
optimum stabilization.
Reflection
destabilizing the
source.
Connect the source using an optical
isolator.
Ambient
temperature
varies.
Control ambient temperature.
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