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COM Port 2 RS-422
Pin
Pin Name
3
GND
6
RS422_TX-
8
RS422_TX+
10
RS422_RX+
12
RS422_RX-
COM Port 2 RS-485
Pin
Pin Name
3
GND
6
RS485_D-
8
RS485_D+
Note: COM2 RS-232/422/485 can be set by BIOS settings. Default is RS-232.
Note: COM2 RI/+5V/+12V function can be set by BOM (R315-RI/ R316±12V/ R313±5V)
Chapter 2 – Hardware Information
Signal Type
Signal Level
GND
GND
OUT
±5V
OUT
±5V
IN
IN
Signal Type
Signal Level
GND
GND
I/O
±5V
I/O
±5V
15
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