Pri Automatic Loop Test; Pri Midnight Routines; Link Diagnostic And Remote Loop-Back Tests - Avaya CS 1000 Maintenance Manual

Primary Rate Interface maintenance

PRI automatic loop test

The automatic loop test checks the same functions as the self-test. Unlike the self-test, the
loop test can be run automatically, as part of the midnight routines.
With the ATLP command set to one, follow Procedure 7.
PRI automatic loop test
1. If all 30 channels are idle at midnight, the software disables the card and performs
2. If any of the 30 channels are busy at midnight, software disables one idle channel,
With the ATLP command set to zero, only one channel is tested. The channel tested is
randomly selected by software; it cannot be specified.
To perform the remote loopback test, use:
LD 60
ATLP 1 or 0

PRI midnight routines

The following PRI maintenance routines should be included in midnight routines:
• Overlay 45: Background signaling and switching diagnostic
• Overlay 95: Automatic trunk maintenance diagnostic
• Overlay 48: Link diagnostic

Link diagnostic and remote loop-back tests

The remote loopback test and the link-diagnostic test are performed manually on a per-channel
or a per-frame (30 channels) basis.
Link diagnostic test
The link-diagnostic test, also called the far-end loopback test, does not test the local PRI. It
puts the PRI in loopback mode so a remote loopback test can be performed on equipment at
the far end.
The PRI channel or frame being tested must be disabled.
44 ISDN Primary Rate Interface Maintenance
a self-test on all channels.
chosen at random, and checks it while the card is enabled.
Comments? infodev@avaya.com
November 2011