Aaeon SBC-456 User Manual page 33

Pin Function
1 K.B. data
2 PS/2 mouse data
3 GND
4 +5 V
DC
5 K.B. clock
6 PS/2 mouse clock
The SBC-456E supports two sets of LED connectors for external
LEDs.
A continuously lit LED indicates good linkage between the SBC-
456E and its supporting hub.
A flashing LED indicates that the SBC-456E is transmitting or
receiving data.
Chapter 2 Installation 25