Asus TUSI-M User Manual download pdf (Page 36)

36 ASUS TUSI-M User’s Manual

3. HARDWARE SETUP

The following is for items 22–28

TUSI-M

0 1

TUSI-M System Panel Connectors

* Requires an ATX power supply.

PLED

Ground

MLED

PWR

+5 V

Keylock

+5V

Speaker

Connector

Power LED

Ground

+5 V

Reset SW

SMI Lead

Message LED

ExtSMI#

Ground

Reset

Ground

Keyboard Lock

ATX Power

Switch*

22) System Warning Speaker Connector (4-pin SPEAKER)

This 4-pin connector connects to the case-mounted speaker. Two sources

(LINE_OUT and SPEAKER) will allow you to hear system beeps and warn-

ings. Only SPEAKER will allow you to hear system beeps before the integrated

audio has been properly initialized.

23) Keyboard Lock Switch Lead (2-pin KEYLOCK)

This 2-pin connector connects to the case-mounted key switch to allow key-

board locking.

24) System Power LED Lead (3-1 pin PLED)

This 3-1 pin connector connects the system power LED, which lights when the

system is powered on and blinks when it is in sleep mode.

25) System Message LED Lead (2-pin MLED)

This indicates whether a message has been received from a fax/modem. The

LED will remain lit when there is no signal and blink when there is data re-

ceived. This function requires an ACPI OS and driver support.

26) System Management Interrupt Lead (2-pin SMI)

This allows the user to manually place the system into a suspend mode or “Green”

mode, where system activity is decreased to save electricity and expand the life

of certain components when the system is not in use. This 2-pin connector con-

nects to the case-mounted suspend switch.

27) ATX Power Switch Lead (2-pin PWR BUTTON)

The system power is controlled by a momentary switch connected to this lead.

Pressing the button once will switch the system between ON and SOFT OFF.

Pushing the switch while in the ON mode for more than 4 seconds will turn the

system off. The system power LED shows the status of the system’s power.

28) Reset Switch Lead (2-pin RESET)

This 2-pin connector connects to the case-mounted reset switch for rebooting

your computer without having to turn off your power switch. This is a preferred

method of rebooting to prolong the life of the system’s power supply.

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