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Cisco ONS 15327 Troubleshooting Guide, R3.4
March 2004
Chapter 2 Alarm Troubleshooting
Alarm Procedures
2.6.139 PWR-REDUN
• Minor (MN), Non-Service Affecting (NSA)
The Redundant Power Capability Lost (PWR-REDUN) alarm applies to cards that have two built-in
fuses (such as newer optical cards). The alarm indicates that one of the fuses has blown and must be
serviced. When this alarm occurs, the card’s power redundancy is lost because only one card power
connection can contact one of the redundant power supplies.
Caution Always use the supplied electrostatic discharge wristband when working with a powered ONS 15327.
Plug the wristband cable into the ESD jack located between the top high-speed and XTC slots.
Procedure: Clear the PWR-REDUN Alarm
Step 1 The card fuse is not field-replaceable. Complete the “Physically Replace a Card” procedure on
page 2-130.
Note When replacing a card with an identical type of card, no additional CTC provisioning is
required.
Step 2 Log onto http://www.cisco.com/tac for more information or call TAC (1-800-553-2447) to arrange a card
return for service.
2.6.140 RAI
• Not Alarmed (NA), Non-Service Affecting (NSA)
The Remote Alarm Indication (RAI) condition signifies an end-to-end failure. The error condition is sent
from one end of the SONET path to the other. RAI on the DS3XM-6 card indicates that the far-end node
is receiving a DS-3 AIS condition (see page 2-16).
Procedure: Clear the RAI Condition
Step 1 Complete the “Clear the AIS Condition” procedure on page 2-16.
Step 2 If the condition does not clear, log onto http://www.cisco.com/tac for more information or call TAC
(1-800-553-2447).
2.6.141 RCVR-MISS
• Major (MJ), Service Affecting (SA)