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DEFINITY Enterprise Communications Server Release 6
Maintenance for R6vs/si
555-230-127
Issue 1
August 1997
Maintenance Object Repair Procedures
Page 10-504DS1-BD (DS1 Interface Circuit Pack)
10
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 500 msec to recognize and report a
Yellow alarm and 500 msec to recognize and report that a Yellow alarm condition
is cleared.
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.
0NO
BOARD
The test could not relate the internal ID to the port (no board).
This could be due to incorrect translations, no board is inserted, an incorrect
board is inserted, or an insane board is inserted.
1. Check to ensure that the board translations are correct. Use the add ds1
PCSS command to administer the DS1 interface if it is not already
administered.
2. If board was already administered correctly, check the error log to
determine if the board is hyperactive. If this is the case, the board is shut
down. Reseating the board will re-initialize the board.
3. If the board was found to be correctly inserted in step 1, issue the busyout
board command.
4. Issue the reset board command.
5. Issue the release busy board command.
6. Issue the test board long command.
This should re-establish the linkage between the internal ID and the port.
Table 10-167. TEST #140 Red Alarm Inquiry Test — Continued
Error
Code
Test
Result Description/ Recommendation
Continued on next page