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AAEON AEC-6511 User Manual

Page 19

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E m b e d d e d C o n t r o l l e r

A E C - 6 5 1 1

Chapter 2 Quick Installation Guide

2 - 3

2.3 COM2 Connector for RS-232/422/485

RS-232

Pin Signal

Pin

Signal

1 DCD

2 RXD

3 TXD

4 DTR

5 GND

6 DSR

7 RTS

8 CTS

RS-422

Pin Signal

Pin

Signal

1 TXD-

2 RXD+

3 TXD+

4 RXD-

RS-485

Pin Signal

Pin

Signal

1 TXD-

2 NC

3 TXD+

4 NC