Nortel Networks BCM50 To troubleshoot the expansion unit, To test the MBM, To test a station MBM

Chapter 18 Testing basic BCM50 functionality 161

9Make a call using the line or line pool.

To troubleshoot the expansion unit

1Check that the correct keycode has been entered for the expansion unit.

2Check that the expansion port is connected to the proper connector. Refer to Figure 42 on page 98 and Figure 43 on page 99 for location of the LAN ports.

3Check the wiring to the MBM. Make sure that the cables are properly seated and are connected to the correct ports with proper LED indications.

4Check that the switches on the MBM are all 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.

5Perform a firmware download to ensure that the correct version is loaded on the ASM/GASM or GATM unit.

6Use Element Manager or the Telephone Administration feature to check the programming for the lines or extensions that are connected to the MBM.

7Reboot the system to ensure that the BCM50 main unit is functioning correctly.

8If the programming is incorrect, use the Backup and Restore Utility to load a recent backup of system programming. If a recent backup is not available, correct the programming using Element Manager or the Telephone Administration feature.

To test the MBM

1Check the Power and Status LEDs on the MBM. Both LEDs should be lit solid and green. If either LED is not lit solid and green, there is a problem with the MBM. Refer to “Media bay module LEDs (expansion units only)” on page 64 for a detailed description of the LED states.

2Perform a call test to make sure the new MBM is operating correctly. If you replaced a station MBM, use “To test a station MBM”. If you replaced a trunk MBM, use “To test a trunk MBM” on page 162. If you replaced a 4x16 MBM, use “To test a station MBM” and “To test a trunk MBM” on page 162.

To test a station MBM

1Go to an extension on the MBM.

2Check for dial tone.

3Use this extension to make a call to another extension on the system.

4Use this extension to make a call to an external telephone number.

BCM50 Installation and Maintenance Guide