User Manual
Modular Multi-service Integrated Optical Transmission Multiplexer
9
RS232 Interface Cards:
Each card contains four RJ45 interfaces, providing four RS232 serial data
ports.
Transmitting Speed: 110~115.2 Kbps
Transmitting Mode: Full Duplex
RS422/RS485 Interface Card (4xRS422/485):
Each card contains four RJ45 interfaces, providing 4 RS422/RS485
data ports.
The definitions of pins are as follows:
RS-422 Interface: 8, 7, 6 and 5 as A(R+), B(R-), Z (T-) and Y (T+)
respectively.
RS-485 Interface: 6, 7 shorted as B (-); 5, 8 shorted as A (+).
Transmitting Speed: 110~115.2 kbps
Transmitting Mode: Full Duplex / Half Duplex
1,2,3,4,
5,6,7,8
8,7,6,5
,4,3,2,1
8-Channel FXO/FXS Interface
Lower RJ45
1,2 The 1
st
Loop Audio
3,4 The 2
nd
Loop Audio
5,6 The 3
rd
Loop Audio
7,8 The 4
th
Loop Audio
Upper RJ45
1,2 The 5
th
Loop Audio
3,4 The 6
th
Loop Audio
5,6 The 7
th
Loop Audio
7,8 The 8
th
Loop Audio
RS232 Interface Card
PC RS232 Interface
RJ45 DB9
TX 2
RX 3
GND
5
2 RX
3 TX
5 GND
8,7,6,5,
4,3,2,1
