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AR-B1890 User’s Manual
22
GPIO Connector ( CN13 )
Pin Assignment
1 GPI
2 GPO
3 GPI
4 GPO
5 GPI
6 GPO
7 GPI
8 GPO
9 5V
10 GND
CPU Fan Connector ( CN14 )
Pin Assignment
1 GND
2 12V
3 FAN Sense
PS2 KB / MS Connector ( PS2-KBMS1 A / B )
Pin Assignment Pin Assignment
1 KB_DATA 2 N / C
3 GND 4 KB_VCC
5 KB_CLK 6 N / C
7 MS_DATA 8 N / C
9 GND 10 KB_VCC
11 MS_CLK 12 N / C