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Hardware setup, Asus cusl2-m user’s manual 41 – Asus CUSL2-M User Manual

Page 41

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ASUS CUSL2-M User’s Manual

41

3. HARDWARE SETUP

Connectors

3. H/W SETUP

25) ATX Power Supply Connector (20-pin block ATXPWR)

This connector connects to an ATX power supply. The plug from the power sup-
ply will only insert in one orientation because of the different hole sizes. Find the
proper orientation and push down firmly making sure that the pins are aligned.

IMPORTANT:

Make sure that your ATX power supply (minimum recommended

wattage: 200 watts; 235W for a fully-configured system) can supply at least 20
amperes on the +5-volt lead and at least 10mA (750mA recommended) on the +5-
volt standby lead (+5VSB). Your system may become unstable/unreliable and may
experience difficulty in powering up if your power supply is inadequate. For Wake-
On-LAN support, your ATX power supply must supply at least 750mA +5VSB.

CUSL2-M

®

CUSL2-M ATX Power Connector

+3.3 Volts

-12.0 Volts

Ground

Power Supply On

Ground

Ground

Ground

-5.0 Volts

+5.0 Volts
+5.0 Volts

Power Good

+12.0 Volts

+3.3 Volts
+3.3 Volts
Ground

+5.0 Volts

Ground

+5.0 Volts

Ground

+5V Standby

26) Standard and Consumer Infrared Module Connector (10-1 pin IR_CON)

This connector supports an optional wireless transmitting and receiving infrared
module. This module mounts to a small opening on system cases that support
this feature. You must also configure the setting through UART2 Use Infrared
(see 4.4.2 I/O Device Configuration) to select whether UART2 is directed for
use with COM2 or IrDA. Use the five pins as shown in Back View and connect
a ribbon cable from the module to the motherboard’s SIR connector according
to the pin definitions. An optional consumer infrared (CIR) set connects to the
CIR and SIR connectors simultaneously for both wireless transmitting and re-
mote control functions through one external infrared module.

CUSL2-M

®

CUSL2-M Infrared Module Connector

Standard Infrared (SIR)

Front View

Back View

+5V

IRTX

IRRX

(NC)

GND

SIR

+5V

IRRX

IRTX

(NC)

GND

(NC)

GND

CIRRX

CIR+5V

CIR

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