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
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