DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures
9-1872UDS1-BD (UDS1 Interface Circuit Pack)
9
Slip Alarm Inquiry Test (#144)
Slips occur when transmitter and receiver are not running at prec isely the same
clock rate. The UDS1 Interface circu it pack can detec t both positive and
negative slips on the DS1 facility. The Slip Alarm Inquiry Test is used to acq uire
the total number of slips that have oc curred on a DS1 link.
When the UDS1 Interface circuit pac k detects a slip c ondition, the circuit p ack
will increase the on-board slip counter by 1. A SLIP-COUNT message is
spontaneously sent to the system software after the c ounter reaches a threshold
(for example, 88). When the maintenance software receiv es the SLIP-COUNT
message, the Slip Alarm Inquiry Test is initiated to q uery the slip counters on a
UDS1 Interface circuit pac k and total the slip c ounts in the maintenance
software.
If the count of slips is over the threshold , a Minor alarm is raised against the
UDS1 Interface circuit pac k. All trunks or ports of the UDS1 Interface circ uit pack
remain in the in-service state. If the UDS1 Interface c ircuit pack is used to supply
the system synchronization source, the MINOR alarm will initiate a
synchronization source switch. See “ TDM-BUS” and ‘‘SYNC (Synchronization)’’
for details.
PASS No Minor alarm is detected in the UDS1 Interface circuit pack.
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 UUCSS
command to admini ster the UDS1 interface if it is not alread y 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 b oard 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 9-692. TEST #143 Minor Alarm Inquiry Test — Continued
Error
Code Test
Result Description/ Recommendation
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