Video Conference Bridge Hardware & Installation Guide

Chapter 4 - Hardware Description

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MPI Network Interface Module Architecture

Figure 4-25, “MPI-8 Network Interface module architecture” shows the

architecture for the MPI-8 Network Interface Module.

Figure 4-25: MPI-8 Network Interface module architecture

MUX Module

The MUX Module multiplexes and demultiplexes the audio, video, data, and

control information. Information arrives at the MUX Port in Nx56/64 Kbps

channels formatted according to the ITU-T H.221 standard for framing

(“Frame Structure for a 64 Kbps to 1920 Kbps Channel in Audiovisual

Teleservices”).

TDM Interface

TDM I/F

Card

Manager

Front

Panel

LEDs

Watch

Dog

HDLC Interface

Bit Rate I/F #1

Bit Rate I/F #2

PHYI/F

H.323 video conferences do not require a MUX card. The H.323 card has a

build in MUX functionality.