B.8 Power LED & Keyboard Lock Connector (JFP3)
You can use an LED to indicate when the single board computer is on. Pin 1 of JFP3 supplies the LED's power, and Pin 3 is the ground.
Table B.8: Power LED and Keylock Connector (JFP3)
Pin | Function |
|
|
1 | LED power (+5 V) |
2 | NC |
3 | GND |
4 | KEYLOCK# |
5 | GND |
B.9 HDD LED and External Speaker
Connector(JFP2/HDD LED and SPEAKER)
The single board computer has its own buzzer. You can also connect it to the external speaker on your computer chassis.
Table B.9: External Speaker Connector (JFP2/SPEAKER)
Pin | Signal | Pin | Signal |
|
|
|
|
1 | SPK+ | 2 | HDDLED+ |
3 | NC | 4 | HDDLED- |
5 | SPK_IN | 6 | SMB_DAATA |
7 | SPK- | 8 | SMB_CLK |
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