MGC Hardware and Installation Manual

Data Module

The Data Module performs conference data and control routing for up to 12 participants. The system allows for 12 conferences of one participant each, or one conference of 12 participants or any combination in between. In T.120 conferences, the data module does the Transcoding. The module supports various ITU-T T.120 standards for data transfer and application sharing in a multipoint conference.

The Data Module supports the following standards:

ITU-T T.122/T.125—MCS (Multipoint Communications Service)

ITU-T T.123—Transport Protocol Stacks

ITU-T T.124—GCC (Generic Conference Control)

Data Module Architecture

Figure 4-28 shows the Data Module’s architecture.

Data

 

 

 

 

TDM Interface

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Data Hardware

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FPGA

 

 

LEDs

 

 

 

 

 

 

 

 

 

 

 

 

 

Data

 

 

PAL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SRAM

 

 

 

 

 

 

Processor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FLASH

 

 

 

 

 

 

 

 

DPR

 

 

 

 

 

 

 

 

 

 

 

x 4

Front

 

 

 

Panel

 

Card

 

LEDs

Watch

Memory

 

Dog

Manager

 

 

HDLC Interface

Figure 4-33: Data Module

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Polycom MGC-50/MGC-100 installation manual Data Module Architecture