2-202
Cisco ONS 15454 Troubleshooting Guide, R8.5
November 2009
Chapter 2 Alarm Troubleshooting
2.7.331 RAI
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 electrical interface assemblies (EIA),
15454_MRC-12 Multirate card, MRC-2.5G-4 Multirate card, OC192SR1/STM64IO Short Reach and
OC192/STM64 Any Reach cards (also known as OC192-XFP in CTC), OC12 IR/STM4 SH 1310-4 card,
OC3 IR/STM1 SH 1310-8 card or TCC2/TCC2P.
Clear the PWR-FAIL-RET-A Alarm
Step 1 Complete the “Clear the PWR-FAIL-A Alarm” procedure on page 2-200.
Step 2 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.
2.7.331 RAI
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Objects: DS1, DS3, E1
The Remote Alarm Indication condition signifies an end-to-end failure. The error condition is sent from
one end of the SONET path to the other. RAI on a DS3XM-6 card indicates that the far-end node is
receiving a DS-3 AIS.
Clear the RAI Condition
Step 1 Complete the “Clear the AIS Condition” procedure on page 2-37.
Step 2 If the condition 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.
2.7.332 RCVR-MISS
Default Severity: Major (MJ), Service-Affecting (SA)
SONET Logical Objects: DS1, E1
A Facility Termination Equipment Receiver Missing alarm occurs when the facility termination
equipment detects an incorrect amount of impedance on its backplane connector. Incorrect impedance
usually occurs when a receive cable is missing from a DS-1 port, or a possible mismatch of backplane
equipment occurs. For example, an SMB connector or a BNC connector could be misconnected to a
DS-1 card.
Note DS-1s are four-wire circuits and need a positive (tip) and negative (ring) connection for both transmit
and receive.
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