P in
P in Name
1
RS485_D-
2
NC
3
RS485_D+
4
NC
5
NC
6
NC
7
NC
8
NC/+5V/+12V
9
GND
N o te 1: COM4 RS-232/422/485 can be set by BIOS. Default is RS-232.
Chapter 2 – Hardware Information
R S-485 Mode
Sig nal Type
I/O
I/O
PWR
GND
Sig nal Level
±5V
±5V
+5V/+12V
26