Rc3000-Sub-Do Voice Relay Card Explanation - Raisecom RC3000 PCM User Manual

7.3. RC3000-SUB-DO voice relay card explanation

FXO is a voice relay card for the relay of FBX voice channel and is connected to output
interface of FBX voice channel. There are 8 channels of a FXO and the channel number
is decided by hardware, unchangeable. Two RJ45 interfaces make up of the 8 channels
(each RJ45 interface has four channnels). Definition of RJ45 interface is as follows:
Channel
Pines
Channel
Pins
Fundamental structure of RC3000-SUB-DO:
Voice
channel
Int
interface
erf
ac
e
pr
ot
ec
tio
n
1 2 3 4 5 6 7 8
RJ45-1
Figure 24
1
RJ45-1 1A,2B RJ45-1 3A,4B
5
RJ45-2 1A,2B RJ45-2 3A,4B
Voice channel control
module
2W & 4W balance
module
Voice D/A
converter
Detect of loop and
ring
Figure 25
1 2 3 4 5 6 7 8
RJ45-2
2 3
RJ45-1 5A,6B
6 7
RJ45-2 5A,6B
Multiplexing
Voice input &
out put
Signal input
Multiplexing
& out put
bus module
Control of
channel
Control
output
module
35
Raisecom Technology Co., Ltd
4
RJ45-1 7A,8B
8
RJ45-2 7A,8B
Bus
interface
module
Multiplex
ing bus
Control
bus
bus