Troubleshooting The Fem; To Determine Why The Ata 2 Does Not Function - Nortel BM450 Troubleshooting Manual

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Determining why an MBM does not appear in Element Manager
Use the following procedure if an installed MBM does not appear in Element
Manager.
Procedure steps
Step
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2
3
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Troubleshooting the FEM

Use the following procedure to troubleshoot an installed fibre expansion module (FEM).
1 Ensure that all six connector LEDs are lit.
2
If all six LEDs are not lit, ensure that all six DIP switches are set to the On (up) position.

To determine why the ATA 2 does not function

1
Check for a dial tone using an analog device.
2
Check that AC power is connected to the ATA 2 unit.
Go to an extension that has access to one of the lines on the MBM if it is a trunk
MBM. Select the line or line pool to which the line belongs.
Check for a dial tone.
Use this extension to make a call to another extension on the system if it is a
station MBM.
OR
Make a call using the line or line pool if it is a trunk MBM.
Use this extension to make a call to an external telephone number if you are
testing a station MBM.
Action
Check that the correct feature is inclueded in your installed keycode.
Check that both the Power and Status LEDs on the MBM are solid green.
If the Power LED is off, and the MBM is installed in the expansion cabinet,
check that the power supply cable is properly seated in the expansion cabinet
and the power supply is connected to a working power outlet.
Ensure that the MBM is properly seated in the MBM bay.
If the Status LED is not solid green, and the MBM is installed in the expansion
cabinet, check that the Expansion cable is properly seated in the Expansion
port on the expansion cabinet and on the main unit.
Ensure that the MBM is enabled using either Element Manager or Telset
Administration. If the MBM is enabled, disable and re-enable it.
Ensure that all DIP switches are set correctly.
Chapter 3 Hardware Troubleshooting
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BCM450 Troubleshooting Guide
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