I/O WM-01 User Manual page 9

RS-232 Cable
HOST
RS-232
Signals
DCD
RXD
TXD
DTR
GND
DSR
RTS
CTS
RI+
Manual MWireless Serial Modem.wpd
RS-422 Cable
HOST
TB-9 RS-422
Signals
1 Rec-(RX-)
2 Trans+(TX+)
3 Trans+(TX-)
4 GND
5 Rec+(RX+)
6
7
8
9
HOST
TB-9
RS-485 Signals
3 Trans+(TX+)
2 Trans+(TX-)
7 GND
5
6
RS-485 Cable
TB-9
2
3
5
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