Table of Contents
Advertisement
Pin
Pin Name
1
RS485_ D3-
2
NC
3
RS485_D3+
4
NC
5
NC
6
NC
7
NC
8
NC/+5V/+12V
9
GND
Pin
Pin Name
1
RS422_TX3-
2
NC
3
RS422_TX3+
4
NC
5
RS422_RX3+
6
NC
7
RS422_RX3-
8
NC/+5V/+12V
9
GND
Note 1: COM3 RS-232/422/485 can be set by BIOS setting. Default is RS-232.
Note 2: Pin#8 function can be set by JP3. The maximum driving current in power
supply mode is 0.5A.
Chapter 2 – Hardware Information
RS485
Signal Type
I/O
I/O
PWR
GND
RS422
Signal Type
OUT
OUT
IN
IN
PWR
GND
Signal Level
±5V
±5V
+5V/+12V
Signal Level
±5V
±5V
+5V/+12V
33
Advertisement
Table of Contents
