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P26: RS232/422/485
Pin #
Signal Name
1
DCD, Data carrier detect
2
RXD, Receive data
3
TXD, Transmit data
4
DTR, Data terminal ready
5
Pin #
RS-232
RS-422
1
DCD
2
RX
3
TX
4
DTR
5
GND
6
DSR
7
TRT
8
CTS
9
NC
RP-103-SMC User Manual
Pin #
GND
RS-485
TX-
DATA-
TX+
DATA+
RX+
NC
RX-
NC
GND
GND
NC
NC
NC
NC
NC
NC
NC
NC
Settings on the Carrier Board
Signal Name
6
DSR, Data set ready
7
RTS, Request to send
8
CTS, Clear to send
9
N.C.
59
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