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ASUS A7M266-D User’s Manual 31
3. HARDWARE SETUP
Connectors
3. H/W SETUP
9) 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.
10) 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.
®
A7M266-D
+5Volt
(Power Supply Stand By)
Ground
Chassis Signal
1
A7M266-D Chassis Open Alarm Lead
CHASSIS
®
A7M266-D
A7M266-D Infrared Module Connector
Standard Infrared (SIR)
Front View Back View
+5V
IRTX
IRRX
(NC)
GND
SIR
+5V
IRRX
IRTX
(NC)
GND
(NC)
GND
CIRRX
CIR+5V
CIR