3.HARDWARE SETUP

11)Chassis Intrusion Lead (4-1 pin CHASSIS)

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 details). If the chassis intrusion lead is not used, a jumper cap must be placed over the pins to close the circuit.

+5Volt (Power Supply Stand By)

Chassis Signal Ground

A7M266

1

CHASSIS

A7M266 Chassis Open Alarm Lead

12)Standard Infrared Module Connector (5-1 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.

 

IR

Front View

Back View

 

 

 

 

 

1

 

 

 

 

+5V

IRRX GND

IRTX

 

 

 

 

 

IRTX

+5V

A7M266

 

 

GND

(NC)

 

 

 

IRRX

 

A7M266 Infrared Module Connector

3. H/W SETUP

Connectors

ASUS A7M266 User’s Manual

37