Asus P2B User Manual download pdf (Page 30)

30 ASUS P2B User’s Manual

III. HARDWARE SETUP

Connectors

III. H/W SETUP

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

+5V

IRTX

IRRX

FIRRX

GND

Back View

P2B Infrared Module Connector

For the infrared feature to be available,

you must connect the optional Infrared

(IrDA) module to the motherboard

+5V

IRRX

IRTX

(NC)

GND

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.

P2B ATX Power Connector

+3.3Volts

-12.0Volts

Ground

PWR Supply On

Ground

-5.0 Volts

+5.0 Volts

Power Good

+12.0Volts

+3.3 Volts

Ground

+5.0 Volts

Ground

+5.0 Volts

Ground

+5V Standby

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 Manual Page 30

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