Telephone System Installation and Maintenance Guide

Chapter 22 Replacing a media bay module 181
BCM50 Installation and Maintenance Guide
To insert the new MBM
1 Unpack the new MBM.
2 Verify that the dip switches are all in the factory default positions. Refer to“Verifying the
media bay module switch settings” on page 93.
3 Install the MBM. Refer to “Installing a media bay module in an expansion unit” on page 95.
4 If the new MBM is a different type of module (for example, you replaced a DSM16 with a
4x16), use Element Manager to configure the new MBM before continuing. Refer to “To
configure the MBM(s)” on page 150 for more information on configuring the MBM.
5 Reconnect the power supply cable. Refer to “To connect a power supply without a UPS” on
page 101.
6 Connect the telephone line and extension cables to the port on the front of the new MBM.
Refer to “Connecting the lines and extensions” on page 102.
If the new MBM is a different type of module (for example, you replaced a DSM16 with a
4x16), you must make any additional connections to the MBM before continuing.
7 Proceed to “To test the MBM” on page 161.
To return the system to operation
1 Check the Power and Status LEDs on the main unit. Both LEDs should be solid green. If either
LED is not solid green, there is a problem with the main unit. Refer to “System status LEDs”
on page 59 for a detailed description of the LED states.
2 If this system has an expansion unit, check the Power and Status LEDs on the MBM in the
expansion unit. Both LEDs should be solid green. If either LED is not solid green, there is a
problem with the MBM or the expansion unit. Refer to “Media bay module LEDs (expansion
units only)” on page 64 for a detailed description of the LED states.
3 If this system has a second expansion unit, check the Power and Status LEDs on the second
MBM.
4 Use Element Manager to restore the programming. For information about restoring system
programming, refer to the BCM50 Administration Guide (N0016868).
5 Set the basic configuration parameters. Refer to “Configuring the BCM50 system” on page
123 for more information.