Pin, d-sub plc serial port connector – GE GFK-1852 User Manual
Page 58
GFK-1852
Chapter 6 Serial Line Interfaces
6-11
Serial Line Interfaces
6
9-Pin, D-Sub PLC Serial Port Connector
This connector is used for an RS-232 serial port on VersaMax CPUs. For additional
information on VersaMax serial ports, please refer to the VersaMax PLC User’s
Manual, GFK-1503.
3LQ
3LQ
56 3RUW
3LQ )HPDOH
'6XE
3LQ
3LQ
([WHUQDO 9LHZ
Pin-Out for 9-Pin D-Sub Serial Connector (RS-432)
Pin
Signal
Direction
Function
1
N/C
No connection
2
TXD
Output
Transmit Data output
3
RXD
Input
Receive Data input
4
N/C
No connection
5
GND
--
0V/GND signal reference
6
N/C
No connection
7
CTS
Input
Clear to Send input
8
RTS
Output
Request to Send output
9
N/C
No connection
Shell
SHLD
--
Cable Shield wire connection
Figure 6-16. 9-Pin D-Sub Serial Port Connector