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Cisco ONS 15600 SDH Troubleshooting Guide, R8.0
July 2010
Chapter 2 Alarm Troubleshooting
2.6.163 PWR-FAIL-B
Step 5
If the alarm does not clear, complete the
“Replace an SSXC Card” procedure on page 2-133
an I/O Card” procedure on page 2-134
, or
“Replace a TSC Card” procedure on page 2-136
as needed.
Step 6
If the single card reseat and replacement does not clear the alarm, or if multiple cards report the alarm,
verify the office power; refer to the “Install the Bay and Backplane Connections” chapter in the
Cisco ONS 15600 SDH Procedure Guide
for power installation instructions.
Step 7
If the alarm does not clear, reseat the power cable connection to the connector. For more information
about ONS 15600 SDH power connections, refer to the “Install the Bay and Backplane Connections”
chapter in the
Cisco ONS 15600 SDH Procedure Guide
.
Step 8
If the alarm does not clear, physically replace the power cable connection to the connector.
Step 9
If the alarm does not clear, a problem with the power distribution unit (PDU) is indicated and it could
need to be replaced. Complete the procedure located in the “Maintain the Node” chapter in the
Cisco ONS 15600 SDH Procedure Guide
.
Step 10
If the alarm does not clear, log into the Technical Support Website at http://www.cisco.com/techsupport
for more information or call Cisco TAC (1 800 553-2447).
Step 11
If the alarm clears and it was reported by a traffic (STM-N) card, traffic reverts to the working port if an
automatic switch occurred. If traffic was manually switched to a 1+1 protect port, revert traffic by
completing the
“Clear a 1+1 Protection Port Force or Manual Switch Command” procedure on
. If traffic was manually switched in an SNCP, revert traffic to the original path by completing
the
“Clear a SNCP Span External Switching Command” procedure on page 2-127
Step 12
If the alarm was reported by a SSXC card and an automatic switch to the alternate copy SSXC card
occurred, traffic is automatically restored to the preferred copy.
Step 13
If the reporting card was reported by a TSC card and you want to make the standby card active, complete
the
“Soft-Reset a Card Using CTC” procedure on page 2-130
2.6.163 PWR-FAIL-B
Default Severity: Minor (MN), Non-Service-Affecting (NSA)
Logical Objects: CAP, EQPT
The Equipment Power Failure at Connector B alarm occurs when there is no power supplied to the
backup power connector on the shelf. This alarm occurs on the CAP, SSXC card, traffic (STM-N) cards,
or TSC card.
Troubleshoot this alarm with the
“Clear the PWR-FAIL-A Alarm” procedure on page 2-104
2.6.164 PWR-FAIL-RET-A
Default Severity: Minor (MN), Non-Service-Affecting (NSA)
Logical Object: EQPT
The Equipment Power Failure at Power Return A alarm occurs when the main power return path is not
available. This alarm occurs on the TSC card, SSXC card, or traffic (STM-N) cards. Troubleshoot using
the
“Clear the PWR-FAIL-A Alarm” procedure on page 2-104
.
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