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Modular Conversoin Receiver Model: R-CM
3-3. RS232C Connector
1. RS232C Connector Pin Assign
Pin No.
Signal
Detail
Direction
1
2
TXD
Transmitted data signal
3
RXD
Received data signal
4
5
GND
Ground
6
7
CTS
Clear to send signal
8
RTS
Request to send signal
9
2. R-CM and PC/PLC Connection Cable, Example
R-CM: D-Sub9S Female
PIN #
Signal Name
Detail
1
2
TXD
Transmitted data signal
3
RXD
Received data signal
4
5
GND
Ground
6
7
CTS
Clear to send signal
8
RTS
Request to send signal
9
Flame
Shield
* For RS232C cable part No. 387 or standard D-Sub 9 pin (female) straight cable is available.
PC/PLC: D-Sub9S Female
PIN #
Signal Name
Detail
1
DCD
Not connected
2
RXD
Received data signal
3
TXD
Transmitted data signal
4
DTR
Not connected
5
GND
Ground
6
DSR
Not connected
7
RTS
Request to send signal
8
CTS
Clear to send signal
9
NC
Not connected
Flame
Shield