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ASUS TUSL2 User’s Manual 41
3. HARDWARE SETUP
Connectors
3. H/W SETUP
The following is for items 25–31
25) System Power LED Lead (3-1 pin PWRLED)
This 3-1 pin connector supplies the system power LED, which lights when the
system is powered on and blinks when it is in sleep mode.
26) Keyboard Lock Switch Lead (2-pin KEYLOCK)
This 2-pin connector supplies the case-mounted key switch to allow keyboard
locking.
27) System Warning Speaker Connector (4-pin SPEAKER)
This 4-pin connector supplies 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.
28) System Message LED Lead (2-pin MSG.LED)
This lead 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
received. This function requires an ACPI OS and driver support.
29) 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.
30) ATX Power Switch Lead (2-pin PWRSW)
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.
31) Reset Switch Lead (2-pin RESET)
This 2-pin connector supplies 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.
TUSL2-C
®
TUSL2-C System Panel
Connectors
*
Requires an ATX power supply.
PLED-
Ground
MLED-
PWR
PLED+
Keylock
+5V
Speaker
Speaker
Connector
Power LED
Ground
MLED+
Reset SW
SMI Lead
Message LED
ExtSMI#
GND
Reset
Ground
Ground
Ground
Keyboard Lock
ATX Power
Switch*