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User Manual
40
5
~
6 Reserved
7
~
8 Reserved
Principle of RC3000-SUB-10FXS is as follow:
5.20
Function of RC3000-SUB-10FXO card
10 FXO audio sub-card is a relay interface module relaying FBX voice channel. There are 10
channels of a FXO and the channel number is decided by hardware and unchangeable. Interface is
made up of 3 RJ45; Definition of RJ45 interface is as follows:
RJ45 Pin Channel
Name
1
~
2 1
st
line
CHANN1A / CHANN1B
3
~
4 2
nd
line
CHANN2A / CHANN2B
PORT 1
5
~
6 3
rd
line
CHANN3A / CHANN3B
Multiplexing
bus module
Figure 43
Voice channel
interface
Voice channel control
module
Multiplexing
module
Control bus
module
Voice input &
output
Control of
channel output
Interface
prot
ecti
on
Signal input &
output
2W & 4W balance
module
Voice D/A
converter
Detect of ring and
on-hook/off-hook
Bus interface
Multiplexing bus
Control bus
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
Figure 44
RJ45-1
RJ45-2
1 2 3 4 5 6 7 8
RJ45-3