Failure code Associated error
10 Line interface failure.
11 Receiver framing failure.
12 Transmit/receive (inter)national bit failure.
13 Yellow (remote) alarm failure.
14 PCM path integrity failure.
15 Loop remote loopback failure.
16 Channel remote loopback failure.
This self-test can be run manually on a per-loop or per-channel basis using LD 60. The DCHI/
DDCH and 2.0 Mb PRI must be disabled before performing the self-test.
Self-testing the 2.0 Mb PRI
T
o self-test the entire loop:
1. Enter the following command in LD 96 to disable the DCHI/DDCH:
DIS DCH N
2. Enter the following command in LD 60 to disable the 2.0 Mb PRI card and run the
self-test:
DISL L
SLFT L (entire loop)
To self-test a specific channel:
1. Enter the following command in LD 60 to disable the idle channel:
DSCH L CH
2. Enter the following command in LD 60 to run the self-test on the channel:
SLFT L CH
2.0 Mb PRI automatic loop test
This procedure is not recommended since it causes a Yellow alarm at the far end and can
cause some B-channels to not re-enable once the test is completed. Therefore, set the ATLP
command to 0.
The automatic loop test checks the same functions as the self-test. Unlike the self-test, it can
be run automatically as part of the midnight routines.
2.0 Mb PRI automatic loop test
With ATLP command set to one and if all 30 channels are idle at midnight, the system software
disables the card and performs a self-test on all channels. This causes a Yellow alarm to be
2.0 Mb PRI maintenance
162 ISDN Primary Rate Interface Maintenance November 2011
Comments? infodev@avaya.com
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