Avaya S8700 Maintenance Manual page 2462

Maintenance-Object Repair Procedures
Table 8-672. Test #135 Internal Loop-Around Test — Continued
Error Test
Code Result Description / Recommendation
0 NO The test could not relate the internal ID to the port (no board). This could be
BOARD due to incorrect translations, no board is inserted, an incorrect board is
inserted, or an insane board is inserted.
1. Verify that the board's translations are correct. Execute the add ds1
2. If the board was already administered correctly, check the error log to
3. If the board was found to be correctly inserted in step 1, then issue the
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.
Loss of Signal Alarm Inquiry Test (#138)
This test verifies the synchronization status, echo cancellation, and continuity of
the DS1 link. The Loss of Signal alarm indicates that the UDS1 Interface circuit
pack is unable to derive the synchronization clock from the DS1 facility. When the
UDS1 Interface circuit pack detects a Loss of Signal alarm, it stops providing the
synchronization clock for the system, if it is administered as a timing source, and
transmits a Yellow alarm to the remote DS1 endpoint.
When the Loss of Signal alarm is confirmed, maintenance software places every
trunk or port of the UDS1 Interface circuit pack into the out-of-service state. The
inquiry test will run every 10 minutes until the loss of signal has been restored.
The UDS1 Interface circuit pack raises a Loss of Signal alarm after the signal has
been lost for about 1 second. It will not retire the alarm until the signal has
returned for about 10 seconds.
8-1740 Issue 1 May 2002
UUCSS command to administer the UDS1 interface if it is not already
administered.
determine whether the board is hyperactive. If this is the case, the board is
shut down. Reseating the board will re-initialize it.
busyout board command.
Continued on next page
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