Cisco NCS 2000 series Troubleshoot Manual

Possible Cause There are dirty client connectors on the ADxC-xx.x card transmit port or the demultiplexer
(DMX) has crossed the near-end TCA.
Solution Check the connector on the OCH port of the ADxC-xx.x card.
Possible Cause There are dirty client connectors on the ADxC-xx.x card receive port or the multiplexer
(MUX) has crossed the far-end TCA point.
Solution If an optical channel bypass exists along the line, check the connectors.
Problem There is a BBE TCA on all transponders connected to an ADxB-xx.x card.
Possible Cause The transponder input power is out of range.
Solution Check the input power on the transponder. It should be within the specified/supported range.
Possible Cause There is a dirty connector on the 4MD-xx.x card port.
Solution Check the connector on the drop port of the 4MD-xx.x card.
Possible Cause There is a dirty connector on the ADxB-xx.x card drop port, and it has crossed the near-end
TCA point.
Solution Check the connector on the drop port of the ADxB-xx.x card.
Possible Cause There is a dirty connector on the ADxB-xx.x card add port and it has crossed the far-end
TCA.
Solution Check the patchcord on the 4MD-xx.x or AD1B-xx.x card.
Possible Cause There is a degraded patchcord between the ADxB-xx.x and 4MD-xx.x cards.
Solution If an optical band bypass exists along the line, check the band connectors.
Problem 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.
Solution The problem is in the intercabinet signal path preceding the transponder.
Problem You have a laser bias current (LBC) TCA on a single transponder.
Possible Cause The laser of the transponder is degrading.
Solution The problem is within the laser circuitry. Check the OPT-PRE, OPT-BST, OPT-AMP-C, and
OPT-AMP-17C optical amplifier cards.
Using CTC Diagnostics
In Software Release 9.1, CTC provides diagnostics for the following functions:
• 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
Cisco NCS 2000 series Troubleshooting Guide, Release 11.0
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General Troubleshooting
Using CTC Diagnostics

Cisco NCS 2000 series Specifications

General

Brand	Cisco
Model	NCS 2000 series
Category	Network Hardware
Language	English