AAEON AEC-6636 User Manual
Page 24
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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 6 3 6
Chapter 2 Hardware Installation
2 - 10
2.5 RS-232/422/485 Serial Port Connector (COM2)
Pin Signal
Pin Signal
1
DCD (422TXD-/485DATA-)
2
RXD (422RXD+)
3
TXD (422TXD+/485DATA+)
4
DTR (422RXD-)
5 GND
6 DSR
7 RTS
8 CTS
9 RI/+5V/+12V
COM2 RI/+5V/+12V Selection (JP8)
Pin Signal
1-2 +12V
3-4 RI
(Default)
5-6 +5V
8
9
6
7
4
5
2
1
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