
20 Installing the DDI MUX
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4 Unplug any telephone or network cables from all the media bay modules and the MSC on the
Business Communications Manager base unit and the expansion unit.
5 Disconnect the base unit and expansion unit power cords from the ac outlet.
Installing DDI MUX
After the system is powered down, you can install the DDI MUX. Follow this procedure to install
the DDI MUX.
1 Remove the front bezel from the base unit. To remove the bezel, grasp the edges and pull the
bezel forward. Refer to Figure 4.
Figure 4 Removing the front bezel
2 Select an open media bay.
3 Pull the latch beside the selected bay to release the media bay bezel. Refer to Figure 5.
Figure 5 Identifying the media bay module latches
Note: If there is no open media bay, select a media bay module to move to the
Business Communications Manager expansion unit. Do not move a DTM to the
expansion unit.
Business Communications Manager base unit
Grasp the edge of the front bezel and pull
it forward
media bay module latches
Business Communications Manager base unit
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