User`s manual

Table Of Contents
105 Appendix C
C.11 Power LED (CN16)
You can use an LED to indicate when the single board computer is on.
Pin 1 of CN16 supplies the LED's power, and Pin 3 is the ground.
C.12 External Speaker Connector (CN17)
The single board computer has its own buzzer. You can also connect it to
the external speaker on your computer chassis.
Table C.11: Power LED and keylock conn (CN16)
Pin Function
1 LED power (+5 V)
2NC
3GND
4NC
5GND
Table C.12: External Speaker Connector (CN17)
Pin Function
1 Internal buzzer
2NC
3 Internal buzzer
4 Speaker out