Polycom DOC2237A - Manual (Page 68)

Chapter 3 - System Architecture
3-6
Figure 3-6 shows the physical layout of the MGC-50 and how it interfaces
with the outside world.
Figure 3-6: MGC-50 functional block diagram
RS232 RS232 Ethernet
Power
Module
Power
Module
Power
Module
Fan
Module
Audio
Module
Video
Module
Data
Module
Power Bus
Communication Bus
Information
Power Plane
Serial
Interface
Main
CPU Comm.
Controller
LAN
Interface
CPU Bus
Floppy Disk
Hard Disk
LAN Alarms Workstations Workstations 120/230 V
ISDN
Network
CSU/PABX
ATM
Network
H323
Network
Serial
equipment
I/O
Card
I/O
Card
I/O
Card
Mai
n
C
o
n
tr
o
l
M
o
d
u
le
F
u
n
c
ti
ona
l
M
o
dules
Power
Supply
Unit
MGC-100
MUX
Module
MPI
Network
Interface
ATM
Network
Interface
H323
Network
Interface
ISDN
Network
Interface
MPI
Box