Kontron SBC-845D-VEA, User Manual

Page: 49 / 131

2-16
SBC-845D-VEA Single Board Computer User’s Guide
J16: ATX Power Button Interface
Pin Signal
1 Pull High 100 Ohm to +5V
2 Power Button Signal Input (active high)
J17: Reset Button Connector
Pin Signal
1 Reset Signal Input (active low)
2 GND
J18: External Speaker Connector
Pin Signal
1 Speaker Signal Output (open-drain w/ internal series 33 ohm)
2 NC
3 GND
4 +5V
Note:
The pull-high voltage of the external speaker is limited at 5V maximum.