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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 10-1483UDS1-BD (UDS1 Interface Circuit Pack)
10
Slip Alarm Inquiry Test (#144)
Slips occur when transmitter and receiver are not running at precisely the same
clock rate. The UDS1 Interface circuit pack can detect both positive and
negative slips on the DS1 facility. The Slip Alarm Inquiry Test is used to acquire
the total number of slips that have occurred on a DS1 link.
When the UDS1 Interface circuit pack detects a slip condition, the circuit pack
will increase the on-board slip counter by 1. A SLIP-COUNT message is
spontaneously sent to the system software after the counter reaches a threshold
(for example, 88). When the maintenance software receives the SLIP-COUNT
message, the Slip Alarm Inquiry Test is initiated to query the slip counters on a
UDS1 Interface circuit pack and total the slip counts in the maintenance
software.
If the count of slips is over the threshold, a Minor alarm is raised against the
UDS1 Interface circuit pack. All trunks or ports of the UDS1 Interface circuit pack
remain in the in-service state. If the UDS1 Interface circuit pack is used to supply
the system synchronization source, the MINOR alarm will initiate a
synchronization source switch. See TDM-BUS (TDM Bus) and SYNC
(Synchronization) Maintenance documentation for details.
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. Ensure that the board translations are correct. Execute the add ds1
PCSS command to administer the UDS1 interface if it is not already
administered.
2. If the board was already administered correctly, check the error log to
determine whether 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, then 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 10-499. TEST #143 Minor Alarm Inquiry Test — Continued
Error
Code
Test
Result Description/ Recommendation
Continued on next page