Figure 1-4: Concorde¥4500 Functional Block Diagram - PictureTel Concorde 4500 Servicing Manual

Audio Board
Audio compression PT724, G.7xx
Echo cancelation, AGC, ANS
Video Board
Video I/O
Video switching, overlays, PIP I/O
Snapshot
Data Interface
Flow control
RS 232
RS 449 and V.35
Communications
Application control
User Interface control
Communications and
Encryption control
Network Interface
SW56
V.35 with RS-366A
RS-449 with RS-366A
X.21 BRI
V.25-bis
Array Processors
H.261 video compression
SG4 video compression
SG3 video/audio compression
Figure 1-4: Concorde•4500 Functional Block Diagram
Electronics Module
Microphones
Microphones
Power Mic
Audio I/O
VCR Audio
Phone add-on
IR Keypad
Video I/O
PTZ Camera
Doc Camera
VCR Video
DTE Device
Serial I/O
Modem
Control Port A
Control Port B
Network
Interfaces
1-7