Serial port 2 connector (com2) – Avalue LPC-0805 User Manual

Page 11

background image

Quick Reference Guide

LPC-0805 Quick Reference Guide 11

2.1.3

Serial port 2 connector (COM2)

RS-232

Signal

PIN PIN

Signal

DCD

1

6

DSR

RXD

2

7

RTS

TXD

3

8

CTS

DTR

4

9

RI

GND

5

RS-422

Signal

PIN PIN

Signal

TxD-

1

6

NC

RxD+

2

7

NC

TxD+

3

8

NC

RxD-

4

9

NC

GND

5

RS-485

Signal

PIN PIN

Signal

DATA-

1

6

NC

NC

2

7

NC

DATA+

3

8

NC

NC

4

9

NC

GND

5