Polycom MGC Administrator, Administrator'S Manual

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MGC Administrator’s Guide
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Viewing and Configuring the MUX Module Specific Properties
The MUX card is used for connecting ISDN and T1_CAS video participants
to the conference.
Before running conferences, it is important that the MUX units are configured
to the appropriate line rate, as this defines the maximum line rate for each
participant. The unit configuration determines the total number of participants
in all the conferences run simultaneously. For example, a unit set to 4x384, a
unit can carry four participants, each at a line rate of up to 384 Kbps. You can
set different units to different line rates to accommodate different participant
capacities. If the system does not have enough resources to accommodate a
certain line rate, it will automatically allocate units of higher line rates to
carry the conference. For example, if one unit is configured as 4x384 and all
the other units are configured as 2x768, or E1/T1, and there are five
participants using line rates of 384 Kbps, the system will automatically
allocate one of the units configured as 2x768 to run as the fifth participant in
the conference (the first four participants are handled by the unit configured
as 4x384). The line rate should be set according to the expected number of
conferences at each line rate to be handled by the MCU.
To configure the MUX module:
1. In the Browser pane, click the plus icon [+] next to the slot containing the
MUX module to list its ports (units).
2. Right-click the port to configure.
IP video conferences do not require a MUX or MUX+ card. The H.323 and IP
cards have a built in MUX functionality.