AIMB-503 User Manual 90
B.12 Power Switch/HDD LED/SMBUS/Speaker (JFP1)
The single board computer has its own buzzer. You can also connect it to the external
speaker on your computer chassis.
B.13 Power LED and Keyboard Lock Pin Header
(JFP2)
Table B.13: Power Switch/HDD LED/SMBUS/Speaker (JFP1)
Pin Signa Pin Signal
1 +5V 2 HDDLED+
3 Power Button+ 4 NC
5 HDDLED- 6 Power Button-
7 SPK_P3 8 SMB_SATA
9 System Reset+ 10 SPK_P4
11 SMB_CLK 12 System Reset-
Table B.14: Power LED and Keyboard Lock Pin Header (JFP2)
JFP2 Power LED and Keyboard Lock Pin
Header
Part Number 12G06000005C
Pin Pin Name
1 SIO_SUSLED
2NC
3GND
4 #KEYLOCK
5GND
Note: Pin1,3 provide LED function ; Pin4,5 provide the ability to lock PS/2 (KBMS) .
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