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Iii. installation, 30 asus p5a-b user’s manual – Asus P5A-B User Manual

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30

ASUS P5A-B User’s Manual

III. INSTALLATION

Connectors

III. INST

ALLA

TION

11. USB, Infrared, PS/2 Mouse Module Connector (USB/MIR, 18-1 pin block)

If you want to use PS/2 mouse, USB, or infrared (IrDA) devices, you need to
purchase an external connector set. The external connector set connects to the
18-pin block and mounts to an open slot on your computer’s chassis. The system
will direct IRQ12 to the PS/2 mouse if one is detected. If not detected, expan-
sion cards can use IRQ12. See PS/2 Mouse Control in BIOS Features Setup
and USB Function in PnP and PCI Setup of the BIOS SOFTWARE. See Sec-
ond IrDA...
connector for details on the infrared connector.

PS/2
Mouse

Infrared

USB 0

USB 1

1: USB +5 Volt
2: USB Port 0 -
3: USB Port 0 +
4: Ground
5: (no connection)
6: PS/2 Mouse Clock
7: Ground
8: (no connection)
9: +5 Volt

P5A-B PS/2 USB, Mouse, IrDA Module Connector

10: USB +5 Volt
11: USB Port 1 -
12: USB Port 1 +
13: Ground
14: (no connection)
15: PS/2 Mouse Data
16: Ground
17: Infrared Receive
18: Infrared Transmit

Optional USB/MIR

1

9

18

10

12. IrDA-Compliant Infrared Module Connector (IR, 5-pin block)

This connector supports the optional wireless transmitting and receiving infra-
red module. This module mounts to a small opening on system cases that sup-
port this feature. You must also configure the setting through UART2 Use Infra-
red
in Chipset Features Setup to select whether UART2 is directed for use
with COM2 or IrDA. Use the five pins as shown below (Back View) and con-
nect a ribbon cable from the module to the motherboard according to the pin
definitions.

P5A-B Infrared Module Connector

FIRRX

IRRX

+5V

IRTX

FIRRX

GND

For the infrared feature to be available,
you must connect an optional Infrared
module to the motherboard.

+5V

IRTX

IRRX

GND

Back View

Front View

R