Acnodes PC 9150 - Manual (Page 23)

RS485 (option):
Pin# Signal Name
1 NC
2 NC
3 485-
4 485+
5 Ground
6 NC
7 NC
8 NC
9 NC
BIOS Setup
Advanced/W 83627UHG Super IO
Conf iguration/Serial Port 1 Configuration RS-485
12 JP2:
(2.0mm Pitch 2x3 Pin Header),COM2 jumper setting, pin 1~6 are used to select s ignal
out of pin 9 of COM2 port.
JP2 Pin# Function
Close 1-2 COM1 RI (Ring Indicator)
(default)
Close 3-4 COM1 Pin9=+5V
(option)
Close 5-6 COM1 Pin9=+12V
(option)