User`s manual

SQ575

3.5.10 Green LED (2-pin)

The system LED will become blinking once the system get into suspend mode.

Pin Signal Name

1 LED

2 Ground

3.5.11 Speaker Connector (4-pin)

A 1x4 straight header is available to drive a chassis-mounted speaker if desired.

Pin Signal Name

1 Speaker+

2 No connect

3 No connect

4 Speaker-

3.5.12 IrDA connector (6-pin) (J13)

The SQ575 mainboard offers an IrDA function. The case must reserve space for the IR

module if you want to use the IrDA function. This connector supports optional wireless

transmission and reception of infrared data. The module mounts in a small opening on the

system case that supports this feature. The efficient distance is 100cm and the transfer rate is

1.44M KB/sec.

Pin Signal Name

1 +5V

2 No connect

3 IrRX

4 Ground

5 IrTX

6 Reserve

7 F IrRX

IMPORTANT: You must configure this feature through the BIOS. The IR module is

supported by the mainboard via a 6-pin connector and ribbon cable.

3.5.13 PS/2 Mouse Connector (J4)

The SQ575 mainboard offers 1 PS/2 Keyboard and 1 PS/2 Mouse port as below.

Pin Signal Name

1 DATA

2 No connect

3 Ground

4 +5V (Fused)

5 Clock

6 No connect