Mpi Network Interface Module Architecture; Mux Module - Polycom DOC2237A Hardware Installation Manual

Chapter 4 - Hardware Description

MUX Module

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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.
Front
Panel
Watch
LEDs
Dog
HDLC Interface
Figure 4-25: MPI-8 Network Interface module architecture
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").
H.323 video conferences do not require a MUX card. The H.323 card has a
build in MUX functionality.
TDM Interface
Bit Rate I/F #1
TDM I/F
Bit Rate I/F #2
Card
Manager
PHYI/F
PHYI/F