Avaya CS 1000 Maintenance

Remote loopback test
The remote loopback test, also called the near-end loop-back test, checks the integrity of the
PRI from the near end to the far end.
The far end must be in loopback mode before this test
can be performed.
The PRI channel or frame tested must be disabled.
Coordinating the tests
When a technician at the far end asks for loopback mode on the PBX:
Disable the DCHI using:
LD 96
DIS DCH N
Disable the PRI loop and activate loopback mode using:
LD 60
DISL L
RLBK L
To run the remote loopback test on the PBX, follow
Remote loopback test on page 45.
Remote loopback test
1. Call a technician at the far end.
2. Ask for loopback mode at that facility.
3. When loopback mode at the far end is confirmed:
Disable the DCHI using:
LD 96
DIS DCH N
Disable the PRI loop and run loopback test using:
LD 60
DISL L
RMST L
Figure 2: PRI link-diagnostic and remote loopback tests on page 46
shows the relationship
between the remote loop-back test and the link-diagnostic test.
PRI tests
ISDN Primary Rate Interface Maintenance November 2011 45

Avaya CS 1000 Specifications

General

Brand	Avaya
Model	CS 1000
Category	Server
Language	English