Advantech AIMB-258 - Manual (Page 76)

AIMB-258 User Manual 68
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.
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.8: Power LED and Keylock Connector (JFP3)
Pin Function
1 LED power (+5 V)
2 NC
3 GND
4 KEYLOCK#
5 GND
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