Avaya S8700 Maintenance Manual page 1338

Maintenance-Object Repair Procedures
Yellow Alarm Inquiry Test (#141)
Receiving a Yellow alarm from remote DS1 endpoint indicates that the remote
DS1 endpoint has an out-of-frame condition. The Yellow Alarm Inquiry test is
used to determine whether the remote DS1 endpoint is transmitting a Yellow
alarm. The DS1 Interface circuit pack takes ½ second to recognize and report
either a:
Yellow alarm condition
Cleared Yellow alarm condition
When the DS1 Interface circuit pack detects a Yellow alarm from the remote DS1
endpoint, it will send a YELLOW-ALARM uplink message to the maintenance
software. After the maintenance software receives the YELLOW-ALARM
message, the Yellow Alarm Inquiry test is run to confirm the Yellow alarm. Once
the Yellow alarm is confirmed, the maintenance software places all trunks on the
circuit pack into the out-of-service state. The Inquiry test will be run every 10
minutes until the Yellow alarm is cleared.
When the Yellow alarm is cleared, the maintenance software restores all trunks on
the DS1 Interface circuit pack back to their previous service state before the
Yellow alarm is raised.
This Yellow Alarm corresponds to the yellow F2 state documented in CCITT
recommendation I.431.
Remote Multiframe Alarm: Remote Multiframe Alarm (RMA) indicates that the
remote DS1 endpoint is in a Loss of Multiframe Alarm condition while the DS1
Interface circuit pack is administered using the DMI-BOS common-channel
signaling. The RMA is handled as a Yellow alarm.
Yellow F5 State Alarm: For 32-channel E1 operation with CRC4 on, the F5 fault
state is defined as a fault in the user-network interface, specifically in the direction
from the user (PBX) to the network. Refer to CCITT recommendation I.431
Table 8-248. Test #141 Yellow Alarm Inquiry Test
Error Test
Code Result Description / Recommendation
ABORT Internal system error
2100 ABORT Could not allocate the necessary system resources to run this test.
1. Retry the command at 1-minute intervals up to 5 times.
8-616 Issue 1 May 2002
Continued on next page
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