PCIe® module C9900-E301 with 2 serial interfaces RS232

The RS232 interfaces contain two electrically isolated sockets ix Industrial® type B. Two adapter cables ix Industrial® type B to D-sub, 9-pin are required (order identifier C9900-K920). The adapter cables are 50 cm long. The interface provides an asynchronous, serial communication method defined in the RS232 standard.

PCIe® module C9900-E301 with 2 serial interfaces RS232 1:Fig.11: 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