J1 Ð Ide Led Activity Light; J1 Ð Smi Switch; J1: Ð Infrared Port Module Connector; Usb1: Usb Connector - SOLTEK SL-53A2 User's Manual & Technical Reference

J1 – IDE LED Activity Light:
This connector connects to the hard disk activity indicator
light on the case.
J1 – SMI Switch:
Toggle this jumper forces the system to sleep and the system
wonÕt wake up until the hardware event is coming. (The
BIOS Power Management setting muse be Enabled.)
J1: – Infrared Port Module Connector:
The system board provides a 5-pin infrared connectorÑIR1
as an optional module for wireless transmitting and
receiving. Pin 1 through 5 are Transmit, GND, Receive,
NC, and Vcc, respectively.

USB1: USB Connector

This jumper connects to the USB cable to provide USB
device.
22
HD/LED
J1
J2
SPK
Reset
Vcc D0+
D0– GND
IR CON
Power
LED
Keylock
Vcc D1+
D1– GND
SMI
Turbo
LED
GND