Serial interface RS232

The serial interface contains an electrically isolated socket. It is led out via a 9-pin standard DSUB connector. The interface provides an asynchronous, serial communication method defined in the RS232 standard.

The channel features overvoltage protection.

Serial interface RS232 1:Fig.18: RS232 interface pin numbering
RS232 interface pin numbering

Pin

Name

Description

1

DCD

Data Carrier Detect

2

RXD

Receive Data

3

TXD

Transmit Data

4

DTR

Data Terminal Ready

5

GND

Ground

6

DSR

Data Set Ready

7

RTS

Request to Send

8

CTS

Clear to Send

9

RI

Ring Indicator