Asus AAEON PICO-V2K4 User Manual page 29

COM Port4 RS-422
Pin Pin Name
30 GND
22 RS422_TX-
24 RS422_TX+
26 RS422_RX+
28 RS422_RX-
COM Port4 RS-485
Pin Pin Name
30 GND
22 RS485_D-
24 RS485_D+
Note 1: COM4 RS-232/422/485 can be set by BIOS setting. Default is RS-232.
Note 2: COM4 RI/+5V/+12V function can be set by
BOM(R50-RI/R58-+12V/R65-+5V)
Chapter 2 – Hardware Information
Signal Type Signal Level
GND GND
OUT ±9V
OUT ±9V
IN
IN
Signal Type Signal Level
GND GND
I/O ±9V
I/O ±9V
16