B.9 Power Led & Keyboard Lock Connector (Jfp3); Table B.10: Power Led And Keylock Connector (Jfp3); B.10 External Speaker Connector (Jfp2/ Speaker); Table B.11:External Speaker Connector (Jfp2/Speaker) - Advantech AIMB-252 User Manual

B.9 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.10: Power LED and Keylock Connector (JFP3)

Pin
1
2
3
4
5
B.10 External Speaker Connector (JFP2/ SPEAKER)
The single board computer has its own buzzer. You can also connect it to the external
speaker on your computer chassis.
Table B.11: External Speaker Connector (JFP2/SPEAKER)
Pin
1
3
5
7
Function
LED power (+5 V)
NC
GND
KEYLOCK#
GND
Signal
SPK+
NC
SPK_IN
SPK-
77
Pin Signal
2 HDDLED+
4 HDDLED-
6 SMB_DAATA
8 SMB_CLK
AIMB-252 User Manual