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Chapter 4 - Hardware Description
Data Module
4-62
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
Data Hardware
Data
Processor
Front
Panel
LEDs
HDLC Interface
Figure 4-33: Data Module
TDM Interface
FPGA
PAL
SRAM
FLASH
DPR
Card
Watch
Manager
Dog
LEDs
x 4
Memory
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