24 troubleshooting, Solving common problems – EXFO IQS-8100 Series Transport Blazer for IQS-600 User Manual
Page 575

SONET/SDH Application
561
24 Troubleshooting
Solving Common Problems
Before calling EXFO’s technical support, please read the following usual
problems that can occur and their respective solution.
Problem
Possible Cause
Solution
OC-N/STM-N Optical Laser
LED is off and the connector
is not generating the signal.
³
The Laser On
option is disabled.
³
The SFP XFP is not
compatible with the
IQS-8115/20/30.
³
Ensure that the Laser button
is enabled (On).
³
Ensure to use a compatible
SFP/XFP. Refer to
OTN/OC-N/STM-N Interface
Connections on page 20.
Unable to create a Dual RX
test case from a previously
save configuration using
load configuration.
³
The AUX connector
is used for
synchronization.
³
Press System, Clock
Synchronization, and select
None for RX Interface Type.