Avaya BCM50 Installation Manual download pdf (Page 44)

44 Chapter 2 Introducing the BCM50 hardware

NN40170-305

Media bay modules

The media bay modules (MBM) connect with external devices to implement various types of voice

trunks and extensions. You can install one MBM in an expansion unit and you can connect up to

two expansion units to the BCM50 system.

The back of the MBM has a single connector that provides signaling channels, media channels,

and power to the MBM. This connector plugs into the MBM backplane in the expansion unit.

Some MBMs also have a cooling fan that operates using the MBM power source. The figure

Media bay module connectors (rear view) on page 44 shows the rear views of the two types of

MBMs.

Figure 9 Media bay module connectors (rear view)

Note: When generating your keycode, you must select the feature for the

expansion ports you require. If your keycode contains the feature for one

expansion port only, the expansion port on the left (port 2) is active.

Note: To determine which media bay modules and which types of trunk lines are

available in your location, see Interface availability on page 245.

Signaling, media, and

power connector

Signaling, media, and

power connector

Cooling fan

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Avaya BCM50 Installation Manual Page 44