Digital I/O Connector (Cn20) - Aaeon PCM-6896 Manual

Digital I/O Connector (CN20)

PCM-6896 offers 4-pair of digital I/O functions. With the input and
output consisting of the following: Input 801H; GPI20 [bit0],
GPI21[bit1], GPI22[bit2], GPI23[bit3] and Output 801H; GPO24[bit4],
GPO25[bit5], GPO26[bit6], GPO27[bit7]. The pin definitions are
illustrated below:
Digital I/O Connector (CN20)
Pin Signal
1 IN1
3 IN3
5 OUT1
7 OUT3
9 +5V
***PCM-6896 B1.1 & 1.2 did not support Digital I/O function***
4 0 PCM-6896 User Manual
Ver. B1.1&1.2 No Support
Pin Signal
2 IN2
4 IN4
6 OUT2
8 OUT4
10 GND