AHM-6156P User Manual
19
GPIO22
5
6
GPIO62
GPIO23
7
8
GPIO63
Ground
9
10
+5V
Connected GPIO to an external terminal block connector. You can find out the connector at I/O
side, and the pin definition as following:
8 Pin terminal block 2in/2out GPIO, power switch and VCC
11. COM3
:
(2.0mm Pitch 1x4 box Pin Header),it provides selectable RS422/RS485
serial signal output.
RS422 Type (option)
RS485 Type (option)
Signal Name
Pin#
Pin#
Signal Name
422RXD-
1
1
NC
2
2
NC
422TXD-
3
3
485A-
4
4
485A+
Note:
Use COM3 RS232/RS485 Function, please setting JCOM Jumpers and BIOS CMOS
Setup.
Path:
BIOS Setup Utility \ Advanced Setting \ SuperIO Configuration \ Serial Port3
Type:
[RS232 Type]