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Troubleshooting
97
Nortel Business Communications Manager 450 1.0
Installation — System
NN40160-301 01.04 Standard
July 2009
Copyright © 2006-2009 Nortel Networks
Troubleshooting
This chapter describes how to troubleshoot the BCM450 system.
Troubleshooting navigation
•
Testing the main unit (page 97)
•
Troubleshooting the main unit (page 98)
•
Determining why an MBM does not appear in Element Manager (page 99)
•
Troubleshooting the FEM (page 100)
•
Troubleshooting the ATA2 (page 100)
•
Troubleshooting dial tone problems with the ATA2 (page 100)
•
Checking ATA2 wiring (page 101)
•
BCM450 system reset (page 101)
Testing the main unit
Use the following procedure to test the main unit.
Procedure steps
Step
Action
1
Go to an extension that is connected to the RJ-21 telephony connector on
the main unit.
2
Check for a dial tone.
3
Use this extension to make a call to another extension on the system.
4
If this system is connected to an expansion cabinet with a media bay module
(MBM) that supports extensions, repeat steps 2 and 3 for an extension
connected to the expansion cabinet.
5
Go to an extension that has access to one of the lines on the main unit.
6
Select the line or line pool to which the line belongs.
7
Check for a dial tone.
8
Make a call using the line or line pool.
Содержание BayStack 450 Switch
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