Ide Led Activity Light: (J1 Pin1Ð4); Infrared Port Module Connector (J1 Pin6Ð10); J1 Pin12, 13: Atx Power Button; J1 Pin14, 15: Reserved - SOLTEK SL–54U5 User's Manual & Technical Reference

IDE LED Activity Light: (J1 pin1–4)
This connector connects to the hard disk activity indicator
light on the case.
Infrared Port Module Connector (J1 pin6–10)
The system board provides a 5-pin infrared connectorÑIR1
as an optional module for wireless transmitting and
receiving. Pin 6 through 10 are Transmit, GND, Receive
(low speed), Receive (high speed), and Vcc, respectively.

J1 pin12, 13: ATX Power Button

Toggle this switch to turn on/off the system.

J1 pin14, 15: Reserved

Speaker Connector (J2 pin1–4)
The speaker connector is a 4-pin connector for connecting
the system and the speaker. (See the following drawing for
jumper position.)

Reset Switch (J2 pin5, 6)

The system board has a 2-pin connector for rebooting your
computer without having to turn off your power switch.
This prolongs the life of the systemÕs power supply.
Power LED and Keylock Switch (J2 pin8–12)
The keylock switch is a 5-pin connector for locking the
keyboard for security purposes. (See the following drawing
for jumper position, and pin1~3 is connected to power LED
and pin 4~5 is connected to keylock switch.)
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