Maintenance Object Repair Procedures
555-233-123
10-1894
Issue 4 May 2002
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
increments the on-board slip counter by one. 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” and
for details.
PASS
No Minor alarm is detected in the UDS1 Interface circuit pack.
0
NO
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 UUCSS 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 10-678.
TEST #143 Minor Alarm Inquiry Test — Continued
Error
Code
Test
Result
Description/Recommendation
Continued on next page
Summary of Contents for Definity SI
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Page 62: ...Maintenance Architecture 555 233 123 1 26 Issue 4 May 2002...
Page 92: ...Management Terminals 555 233 123 3 26 Issue 4 May 2002...
Page 204: ...Routine Maintenance Procedures 555 233 123 5 100 Issue 4 May 2002...
Page 250: ...LED Interpretation 555 233 123 7 10 Issue 4 May 2002...
Page 2804: ...Maintenance Object Repair Procedures 555 233 123 10 2018 Issue 4 May 2002...