Com Port 3 (Cn28) - Aaeon GENE-KBU6 User Manual

Pin Pin Name
1 RS485_D-
2 NC
3 RS485_D+
4 NC
5 NC
6 NC
7 NC
8 NC/+5V/+12V
9 GND
* COM2 RS-232/422/485 can be set by BIOS setting. Default is RS-232.
* Pin 8 function can be set by JP9.
2.6.24

COM Port 3 (CN28)

Pin Pin Name
1 DCD
2 DSR
3 RX
4 RTS
Chapter 2 – Hardware Information
Signal Type
I/O
I/O
PWR
GND
RS-232
Signal Type
IN
IN
IN
OUT
Signal Level
±5V
±5V
+5V/+12V
Signal Level
±5V
40