BECKHOFF C1120 - Manual (Page 52)

C1120 S5 to II/O-Lightbus Interface Beckhoff II/O-Lightbus System
Page 52 of 52 Version 2.1 Date 27.06.97
5 C1120 Serial Port Pinout
Pinout of RS232 C / current loop port
(9-pin SUB-D connector on front of C1120)
Pin Signal Port
1 TXD RS232 C COM2:
2 TXD RS232 C COM1:
3 RXD RS232 C COM1:
4 RXD RS232 C COM2:
5 Signal
GND -
6 TXD 20mA+ COM1:
7 TXD 20mA- COM1:
8 RXD 20mA+ COM1:
9 RXD 20mA- COM1: