Chapter 3 Hardware Troubleshooting 29
To test the main unit
If you have the digital station feature included in your installed keycode, use the following test to ensure the main unit is operating properly:
1Go to an extension that is connected to the
2Check for a dial tone.
3Use this extension to make a call to another extension on the system.
4If this system has an expansion unit with a media bay module (MBM) that supports extensions, repeat steps 3 and 4 for an extension connected to the expansion unit.
5Go to an extension that has access to one of the lines on the main unit.
6Select the line or line pool to which the line belongs.
7Check for a dial tone.
8Make a call using the line or line pool.
9If this system has an expansion unit with an MBM that supports lines, repeat steps 6 to 8 with an extension that can access one of the lines connected to the expansion unit.
To troubleshoot the main unit
If a test fails, use the following procedure:
1Verify that any nonfunctional feature is included in your installed keycode.
2Check the wiring to the main unit and to the MBMs. Make sure that the cables are properly seated and are connected to the correct ports.
3Reboot the BCM450 system.
4Check LEDs.
5Use Element Manager or the Telset Administration feature to check the programming for the lines or extensions that failed the call test.
6If 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 expansion unit
Use the following test to ensure the expansion unit is operating properly:
1Make sure that the BCM450 system is fully booted.
2Check the power and status LEDs on the MBM that is inserted in the expansion unit. Both LEDs must be solid green. If either LED is not solid green, a problem exists with the MBM or the expansion unit.
3If the expansion unit has an MBM that supports extensions, go to an extension that is connected to the MBM.