Specifications

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Cisco ONS 15454 Troubleshooting and Maintenance Guide
November 2001
Chapter 1 Alarm Troubleshooting
1.3.97 RAI
• Not Alarmed (NA) (Condition)
Remote Alarm Indication 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 far-end node is receiving a DS-3 AIS.
Procedure: Clear the RAI Condition on DS3XM-6 or DS3E Cards in C-bit Format
Use the AIS procedure to troubleshoot the far-end DS-3 node for RAI.
1.3.98 RCVR-MISS
• Major, Service affecting
A Missing Receiver alarm occurs when facility termination equipment detects a missing receive cable
on the DS-1 port or a possible mismatch of backplane equipment, for example, an SMB connector or a
BNC connector is connected 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.
Caution Always use the supplied electrostatic discharge wristband when working with a powered ONS 15454.
Plug the wristband cable into the ESD jack located on the lower-right outside edge of the shelf
assembly.
Procedure: Clear the RCVR-MISS Alarm on the DS-1 Port
Step 1 Ensure that the device attached to the DS-1 port is operational.
Step 2 Verify that the cabling is securely connected.
Step 3 Verify that the pinouts are correct.
Step 4 Replace the receive cable if Steps 1 – 3 do not clear the alarm.
1.3.99 RFI-L
• Not reported
A Remote Fault Indication alarm occurs when the ONS 15454 detects a remote fault indication (RFI) in
the SONET overhead because of a fault in another node. Resolving the fault in the adjoining node clears
the RFI-L alarm in the reporting node.