Cisco ONS 15454 SDH - Using CTC Diagnostics; Card LED Lamp Tests

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Cisco ONS 15454 SDH Troubleshooting Guide, R5.0
July 2005
Chapter 1 General Troubleshooting
1.7 Using CTC Diagnostics
Possible Cause There is a degraded patch cord between the ADxB and the 4MD.
Recommended Action If an optical band bypass exists along the line, check the band connectors.
Symptom 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.
Recommended Action The problem is in the intercabinet signal path preceding the transponder. Refer
to the Cisco ONS 15454 DWDM Installation and Operations Guide for more information about
configurations and acceptance tests for this area
Symptom You have an LBC TCA on a single transponder.
Possible Cause The laser of the transponder is degrading.
Recommended Action The problem is within the laser circuitry. Check the OPT-PRE or OPT-BST
optical amplifier cards. Refer to the Cisco ONS 15454 DWDM Installation and Operations Guide
for more information about setting up these cards.
1.7 Using CTC Diagnostics
In Release 5.0, CTC provides diagnostics for the following functions:
• 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
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.