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81 AIMB-781 User Manual

Appendix B I/O Pin Assignments

B.7 Infrared (IR) connector (JIR1)

B.8 System Fan Power Connector (SYSFAN1/

SYSFAN2)

B.9 Power LED and Keyboard Lock (JFP3)

Table B.7: Infrared Connector (JIR1)

Pin Signal

1+5 V

2N/C

3 IRRX

4GND

5IRTX

Table B.8: Fan Power Connector (SYSFAN1/SYSFAN2)

Pin Signal

1GND

2+12 V

3 DETECT

4PWM

Table B.9: Power LED and Keyboard Lock (JFP3)

Pin Function

1 LED power (3.3 V)

2NC

3Ground

4 #keylock

5Ground