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1.7 Using CTC Diagnostics
Symptom
Symptom
1.7 Using CTC Diagnostics
In Release 5.0, CTC provides diagnostics for the following functions:
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Some of these functions, such as ASIC verification and standby card operation, are invisibly monitored
in background functions. Change or problem notifications are provided in the Alarms and Conditions
window. Other diagnostic functions—verifying card LED function and downloading diagnostic files for
technical support—are available to the user in the node view Maintenance > Diagnostic tab. The
user-operated diagnostic features are described in the following paragraphs.
1.7.1 Card LED Lamp Tests
A card LED lamp test determines whether card-level indication LEDs are operational. This diagnostic
test is run as part of the initial ONS 15454 SDH turnup, during maintenance routines, or any time you
question whether an LED is in working order. Maintenance or higher-level users can complete the
following tasks to verify LED operation.
Cisco ONS 15454 SDH Troubleshooting Guide, R5.0
1-104
There is a degraded patch cord between the ADxB and the 4MD.
Possible Cause
If an optical band bypass exists along the line, check the band connectors.
Recommended Action
There is a BBE TCA on all transponders that the OCH passes through a single OTS section.
Possible Cause
This is not a transponder or channel-related issue.
The problem is in the intercabinet signal path preceding the transponder. Refer
Recommended Action
to the Cisco ONS 15454 DWDM Installation and Operations Guide for more information about
configurations and acceptance tests for this area
You have an LBC TCA on a single transponder.
The laser of the transponder is degrading.
Possible Cause
The problem is within the laser circuitry. Check the OPT-PRE or OPT-BST
Recommended Action
optical amplifier cards. Refer to the Cisco ONS 15454 DWDM Installation and Operations Guide
for more information about setting up these cards.
Verification of proper card ASICS function
Verification of standby card operation
Verification of proper card LED operation
Notification of problems detected via alarms
Provision of a downloaded, machine-readable diagnostic file to be used by Cisco TAC
Chapter 1
General Troubleshooting
July 2005
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