ITEM C 3-Series - 8.11 Connector: RS232;COM [X5]; 8.11.1 Configuration on the device [X5]; 8.11.2 Mating connector [X5]; 8.11.3 Pin assignment [X5]

Electrical installation
Page 103
8.11 Connector: RS232/COM [X5]
8.11.1 Configuration on the device [X5]
 D-SUB connector, 9-pin type, male
8.11.2 Mating connector [X5]
 D-SUB connector, 9-pin type, female
 Housing for a 9-pin D-SUB connector with locking screws of type 4/40 UNC
8.11.3 Pin assignment [X5]
Table 44: Pin assignment RS232 interface [X5]
Pin no.
Name
Value
Specification
1 Not used
6 Not used
2 RxD 10 V / R
I
> 2 kΩ Reception line, RS232 specification
7 - - Not used
3 TxD 10 V / R
out
< 2 kΩ Transmission line, RS232 specification
8 Not used
4 +RS485 Reserved for optional RS485 use
9 -RS485 Reserved for optional RS485 use
5 GND 0 V Interface GND, electrically coupled with GND of the digital
module