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7 troubleshooting, Solving common problems, 7troubleshooting – EXFO IQS-9100 Optical Switch for IQS-500/600 User Manual

Page 63

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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.