Troubleshoot The M5317T; Verifying User Operation; Isolating Switch Problems - Nortel Communication Server 1000 Manual

78 Test and troubleshoot ISDN BRI terminals
Procedure 17

Verifying user operation

Step
1
2
3
4
5
6

Troubleshoot the M5317T

Trouble conditions may be reported by the telephone user (customer report),
by way of automatic routine tests, or during installation procedures.
Isolate switch problems
Follow the steps in
to isolate system problems.
Procedure 18

Isolating switch problems

Step
1
2
3
4
Copyright © 2003-2007, Nortel Networks
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Action
Examine loop length.
If under-carpet cabling is used, evaluate the cables for loss,
impedance, crosstalk, and propagation delay.
Examine all telephone connections.
Set up a communication path to another M5317T.
Go through some call routines, using the enabled features. (Refer to
the M5317T Voice Features User Guide for procedures to establish
and answer telephone calls.)
Verify that the display is showing the appropriate responses.
Procedure 18 "Isolating switch problems" (page 78)
Action
Run the LD 32 diagnostic program for the system.
Check for error and location codes in the diagnostic output.
If the codes indicate a faulty component, replace it. Refer to
"Replace ISDN BRI cards" (page
Run the diagnostic programs again to confirm that the error and
location codes have been cleared.
Nortel Communication Server 1000
ISDN Basic Rate Interface Maintenance
NN43001-718 01.01 Standard
Release 5.0 30 May 2007
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