Aaeon PICO-KBU4 User Manual page 39

17 CTSA
18 CTSB
19 RIA/+5V/+12V
20 RIB/+5V/+12V
RS
Pin Pin Name
3 GND
6 RS422_TX-
8 RS422_TX+
10 RS422_RX+
12 RS422_RX-
Pin Pin Name
3 GND
6 RS485_D-
8 RS485_D+
※ COM2 RS-232/422/485 can be set by BIOS setting. Default is RS-232.
※ COM2 RI/+5V/+12V function can be set by
BOM(R317-RI/R316-+12V/R318-+5V)
Chapter 2 – Hardware Information
IN
IN
IN/ PWR
IN/ PWR
COM Port 2 RS-422
Signal Type
GND
OUT
OUT
IN
IN
COM Port 2 RS-485
Signal Type
GND
I/O
I/O
+5V/+12V
+5V/+12V
Signal Level
GND
±5V
±5V
Signal Level
GND
±5V
±5V
26