6rj-11 plc serial port connector – GE GFK-1852 User Manual
Page 60
GFK-1852
Chapter 6 Serial Line Interfaces
6-13
Serial Line Interfaces
6
RJ-11 PLC Serial Port Connector
This connector is used for an RS-232 serial port on some Series 90-30 and Series 90-
70 CPUs. For additional information on these ports, please refer to the Series 90
PLC Serial Communications Manual, GFK-0582.
Pin 1
RS-232, 6-Pin RJ-11
External View
Pin
Number
Signal Name
Description
1
CTS
Clear to Send
2
TXD
Transmit Data
3
0V
Signal Ground
4
0V
Signal Ground
5
RXD
Receive Data
6
RTS
Request to Send
Figure 6-18. RJ-11 Serial Port Connector