Nortel North American DMS-100 Instruction Manual page 419

1-404 Trouble locating and clearing procedures (continued)
Test the DS-1 carrier states
Test the DS-1 carrier states
At the MAP display
1
2
3
4
297-8021-544 Standard 14.02 May 2001
(continued)
Monitor the DS-1 carrier states at the C7BERT level. If the transmit (Tx) and
receive (Rx) cables connect correctly to the DS-1 paddle board at the local
and remote end, the carrier state for both cards should be InSv.
If the carrier states are
InSv at the local end
and
InSv at the remote end
anything else
Pull the Tx cable at the local end and check the carrier states.
If the carrier states are
RAI at the local end
and
LOS at the remote end
anything else
Pull the Rx cable at the local end and check the carrier states.
If the carrier states are
LOS at the local end
and
LOS at the remote end
anything else
Plug in the Rx and Tx cables and pull out the Tx cable at the outgoing channel
bank at the local end. Check the carrier states.
If the carrier states are
RAI or any other alarm indicator
for the local end
and
LCD at the remote end
anything else
Do
step 2
step 7
Do
step 3
step 7
Do
step 4
step 7
Do
step 5
step 7