Aaeon SBC-558 Manual page 34

Keyboard and PS/2 mouse connector
Pin Signal
1 MS CLOCK
2 KB CLOCK
3 Vcc
4 GND
5 MS DATA
6 KB DATA
Internal keyboard connector (CN3)
Pin Signal
1 KB_CLOCK
2 KB_DATA
3 N.C.
4 GND
5 KB_Vcc
(CN14) (Mini-DIN 6 pins)
Chapter 2 Installation 25