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7～8 4
th
line CHANN4A / CHANN4B
1～2 1
st
line CHANN5A / CHANN5B
3～4 2
nd
line CHANN6A / CHANN6B
5～6 3
rd
line CHANN7A / CHANN7B
PORT 2
7～8 4
th
line CHANN8A / CHANN8B
1～2 1
st
line CHANN9A / CHANN9B
3～4 2
nd
line CHANN10A / CHANN10B
5～6 Reserved
PORT 3
7～8 Reserved
Principle of RC3000-SUB-10FXO is as follow:
5.21 Function of RC3000-SUB-OPT-FE
Optical line-board can communicate with main board and its initial value can be set through DIP
switches. There are 2 groups of 8-bit DIP switches and definitions are as follows:
Switch Definition Value Explanation
FFFF S1
FFFN S2
FFNF S3
FFNN SS13
SW1 1-4
Optical
module
type
FNFF SS15
Multiplexing
bus module
Figure 45
Voice channe
interface
Voice channel control
module
Multiplexing
module
Control bus
module
Voice input &
output
Control of
channel output
Interface
rotection
Signal input &
output
2W & 4W balance
module
Voice D/A
converter
Detect of ring and
loopback
Bus interface
Multiplexing bus
Control bus
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