Troubleshooting; Troubleshooting Navigation; Testing The Main Unit; Use The Following Procedure To Test The Main Unit - Nortel Business Communications Manager 450 Installation Manual

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
1
2
3
4
5
6
7
8
Copyright © 2006-2009 Nortel Networks
Action
Go to an extension that is connected to the RJ-21 telephony connector on
the main unit.
Check for a dial tone.
Use this extension to make a call to another extension on the system.
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.
Go to an extension that has access to one of the lines on the main unit.
Select the line or line pool to which the line belongs.
Check for a dial tone.
Make a call using the line or line pool.
Nortel Business Communications Manager 450 1.0
Installation — System
NN40160-301 01.04 Standard
July 2009
Troubleshooting 97