5.5 Pin configuration RS232 [X5]
Pin No. Denomination Value Specification
1 - - Not occupied
6 - - Not occupied
2 RxD 10 V / R
I
> 2kΩ Receive line, RS232 specification
7 - - Not occupied
3 TxD 10 V / R
A
< 2kΩ Transmitting line, RS232 specification
8 - - Not occupied
4 +RS485 - Reserve for option RS485 Interface
9 -RS485 - Reserve for option RS485 Interface
5 GND 0V Interfaces GND, galvanically connected to DGND