Using Ctc Diagnostics; Card Led Lamp Tests; Verify Card Led Operation - Cisco ONS 15454 DWDM Manual

1.4 Using CTC Diagnostics

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1.4 Using CTC Diagnostics
In Software Release 7.0, 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
windows. Other diagnostic functions—verifying card LED function, creating bidirectional diagnostic
circuits, and also downloading diagnostic files for technical support—are available to the user in the
node view (single-shelf mode) or shelf view (multishelf mode) Maintenance > Diagnostic tab. The
user-operated diagnostic features are described in the following paragraphs.

1.4.1 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 turn-up, 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.

Verify Card LED Operation

Step 1 In node view (single-shelf mode) or shelf view (multishelf mode), click the Maintenance > Diagnostic tabs
(Figure
Cisco ONS 15454 DWDM Troubleshooting Guide, R7.0.1
1-32
There is a BBE TCA on all transponders that the OCH passes through a single OTS section.
This is not a transponder or channel-related issue.
Possible Cause
The problem is in the intercabinet signal path preceding the transponder. Refer
Recommended Action
to the Cisco ONS 15454 DWDM Procedure Guide for more information about configurations and
acceptance tests for this area.
You have a laser bias current (LBC) TCA on a single transponder.
Possible Cause The laser of the transponder is degrading.
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 Procedure Guide for more
information about setting up these cards.
Verifying proper card application-specific integrated circuit (ASIC) functionality
Verifying standby card operation
Verifying proper card LED operation
Diagnostic circuit creation
Customer problem notifications detected by alarms
Provision of a downloadable, machine-readable diagnostic information file to be used by Cisco
Technical Support
1-15).
Chapter 1 General Troubleshooting
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