Nortel BCM50, Installation And Maintenance Manual

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162 Chapter 18 Testing basic BCM50 functionality
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To test a trunk MBM
1 Go to an extension that has access to one of the lines on the MBM.
2 Select the line or line pool to which the line belongs.
3 Check for dial tone.
4 Make a call using the line or line pool.
To determine why an MBM does not appear in Element Manager
1 Check that the correct keycode has been entered for the expansion unit.
2 Check that both the Power and Status LEDs on the MBM are solid green.
• If the Power LED is off, check that the power supply cable is properly seated in the
expansion unit and the power supply is connected to a working power outlet.
Also check that the MBM is properly seated in the expansion unit.
• If the Status LED is not solid green, check that the Expansion cable is properly seated in
the Expansion port on the expansion unit and the main unit.
3 Check that the MBM and expansion unit are enabled, using either Element Manager or Telset
Administration. If they are enabled, disable them, then enable them again.
4
Check that all the switches on the MBM are set to on. Refer to “Verifying the media bay
module switch settings” on page 93 for more information about these switches.
If the MBM is a GASM or GATM, all the switches on the right are not set to on. Refer to
“Verifying the media bay module switch settings” on page 93 for information about setting
these switches.
To check the MBM switches, you must remove the MBM from the expansion unit. Refer to
“Replacing a media bay module” on page 179 for instructions.
To determine why the ATA2 does not function
1 Check for dial tone using an analog device.
2 Check that there is ac power connected to the ATA2 unit.
3 Check that the correct keycode has been entered for digital sets.
4 Verify that the ATA2 is connected to a digital station port.
5 Allow sufficient start up time (30–60 sec).
6
Plug an analog device into the phone port of the ATA2 and check for dial-tone.