User manual

67 AIMB-767 User Manual
Appendix B I/O Pin Assignments
B.11 Front Panel Connectors (JFP1/2)
B.11.1 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.11.2 Power switch/HDD LED/SMBus/Speaker (JFP1/JFP2)
The single board computer has its own buzzer. You can also connect it to the external
speaker on your computer chassis.
Table B.11: Power LED & Keyboard Lock Connector (JFP3)
Pin Function
1 LED power
2 NC
3 SP LED-
4 KEYLOCK#
5 GND
Table B.12: Power Switch/HDD LED/SMBus/Speaker (JFP1/JFP2)
Pin Signal Pin Signal
1 SPK 2 HDDLED+
3 PWR 4 NC
5 HDDLED- 6 PWR
7 SPK 8 SMB_DAT
9 SYS_RST 10 SPK
11 SMB_CLK 12 SYS_RST