Computer Hardware User Manual

ASUS A7V133-M User’s Manual 31

3. HARDWARE SETUP

Connectors

3. H/W SETUP

11) Chassis Intrusion Lead (2 pin CHASS)

This requires an external detection mechanism such as a chassis intrusion moni-

tor/sensor or microswitch. The sensor is triggered when a high level signal is

sent to the Chassis Signal lead, which occurs when a panel switch or light detec-

tor is triggered. This function works with an optional ASUS CIDB chassis intru-

sion module (see your vendor for more information). If the chassis intrusion

lead is not used, a jumper cap must be placed over the pins to close the circuit.

A7V133-M

A7V133-M Chassis Open Alarm Lead

CHASS

+5Volt

(Power Supply Stand By)

Ground

Chassis Signal

12) Standard and Consumer Infrared Module Connector (5 pin IR)

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.

A7V133-M

A7V133-M Infrared Module Connector

Front View Back View

+5V

IRTX

IRRX

(NC)

GND

+5V

IRRX

IRTX

(NC)

GND