CeleronTM Motherboard USER'S MANUAL

34 ASUS P3B-F User’s Manual

3. HARDWARE SETUP

Connectors

3. H/W SETUP

10) 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

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 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

(NC)

GND

Back View

P3B-F Infrared Module Connector

For the infrared feature to be available,

you must connect the optional Infrared

(IrDA) module to the motherboard.

+5V

GND

IRTX

(NC)

IRRX

P3B-F

11) SMBus Connector (5-1 pin SMB)

This connector allows you to connect SMBus devices. SMBus devices commu-

nicate by means of the SMBus with an SMBus host and/or other SMBus de-

vices. The SMBus or System Management Bus is a specific implementation of

an I

C bus, which is a multi-master bus, that is, multiple chips can be connected

to the same bus and each one can act as a master by initiating data transfer.

P3B-F

P3B-F SMBus Connector

SMBCLK

Ground

SMBDATA

+5V

SMB