Aaeon SBC-656 User Manual page 38

The CPU card has its own buzzer. You can also connect to the
external speaker on your computer chassis. Pin assignments for
CN2 (Pin8~11)are shown below:
CN2
Pin
8
9
10
11
* default
For external speaker connection :
Remove the default jumper cap from the pin 10~11away.
(+) : Please connect to pin 8
(-) : Please connect to pin 11
28 SBC-656 User Manual
8
9
10
11
Function
Vcc (For external speaker use)
N/C
BZ_IN*
BUZZ*