INSTALLATION .III

Connectors

III.INSTALLATION

11.IrDA-Compliant Infrared Module Connector (5-pin IR)

This connector supports the 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” in Chipset Features Setup to select whether UART2 is directed for use with COM2 or IrDA. Use the five pins as shown on the Back View and connect a ribbon cable from the module to the motherboard according to the pin definitions.

 

Front View

Back View

 

 

+5V

 

 

(NC)

 

 

 

 

IRRX

 

 

GND

 

 

 

 

IRTX

 

 

 

 

IRTX

+5V

 

 

GND

FIRRX

 

 

IRRX

 

P2B Infrared Module Connector

For the infrared feature to be available,

 

you must connect the optional Infrared

(IrDA) module to the motherboard

12.ATX Power Supply Connector (20-pin ATXPWR)

This connector connects to a 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 but gently making sure that the pins are aligned.

 

+5.0 Volts

+5.0 Volts

-5.0 Volts

Ground Ground Ground PWR Supply On

Ground -12.0Volts

+3.3Volts

P2B ATX Power Connector

+12.0Volts

+5V Standby

Power Good

Ground +5.0 Volts Ground +5.0 Volts

Ground +3.3 Volts

+3.3 Volts

IMPORTANT: Make sure that your ATX power supply can supply at least 10mAmp on the 5-volt standby lead (5VSB). You may experience difficulty in powering on your system if your power supply cannot support the load. For Wake on LAN support, your ATX power supply must supply at least 720mA.

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ASUS P2B User’s Manual