Avaya 03-300430 User Manual

This test verifies the synchronization status and continuity of the DS1 link. The Loss of Signal 
alarm indicates that the DS1 Interface circuit pack is unable to derive the synchronization clock 
from the DS1 facility. When the DS1 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, the maintenance software places all trunks or ports 
of the DS1 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 DS1 Interface circuit pack raises a Loss 
of Signal alarm after the signal has been lost for about 1second. It will not retire the alarm until 
the signal has returned for about 10 seconds.

 

PASS

Every administered trunk of DS1 Interface circuit pack passed the Internal 

Looparound test. The bit pattern consistency test executed successfully 

over the path that covers a DS1 port, cable, and the external NCTE device.

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. Verify that the board’s translations are correct. Use add ds1 

location to administer the DS1 interface if it is not already 

administered.

2. If board was already administered correctly, check the error log to 

determine whether the board is hyperactive. If so, the board was shut 
down. Reseating the board will re-initialize it.

3. If the board was found to be correctly inserted in step 1, enter  

4. Enter reset board
5. Enter release board
6. Enter test board long

This should re-establish the linkage between the internal ID and the 
port.

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