1 pinout serial ports 1 and 3 (according to mode), 2 pinout serial port 2, Ewon4002™ installation guide – Siemens eWON4002 User Manual

Page 36

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eWON4002™

Installation Guide

page 33 of 35

ver 2.04

9.5.1 Pinout serial ports 1 and 3 (according to mode):

9.5.2 Pinout serial port 2

Pin

RS232

RS485

RS422

1

-

-

-

2

RXD

-

RX+

3

TXD

A+

TX+

4

-

-

-

5

GND

GND

GND

6

-

-

-

7

RTS

-

RX-

8

CTS

B-

TX-

9

-

-

-

Table 27: Serial ports 1 and 3 pinout

Pin

RS232

1

DCD

2

RXD

3

TXD

4

DTR

5

COM (GND)

6

DSR

7

RTS

8

CTS

9

RI

Table 28: Serial port 2 pinout