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2.6
COM Port Pin Definition (RS232/422/485)
Pin No
1
2
3
4
5
6
7
8
9
Note: COM Port Mode (RS232, RS422, RS485) can be set in the system BIOS. After
entering the BIOS, go to the Main Menu, then select "COM PORT MODE" to change
the settings.
Chapter 2 – Getting Started
Serial Port Pin Definition
RS232
DCD
RX
TX
DTR
GND
DSR
RTS
CTS
RI
RS485
RS422 & 485 1T/1R
DATA-
DATA+
TX-
TX+
RX+
RX-
17
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