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36 ASUS CUBX-L/CUBX-E User’s Manual
Connectors
3. H/W SETUP
3. HARDWARE SETUP
13) 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 IR connector according to
the pin definitions.
Front View
+5V
IRTX
IRRX
(NC)
GND
Back View
CUBX-L/CUBX-E Infrared Module Connector
For the infrared feature to be available,
you must connect the optional Infrared
(IrDA) module to the motherboard.
+5V
IRRX
(NC)
GND
IRTX
IR
®
14) SMBus Connector (5-1 pin SMB)
This connector allows you to connect SMBus (System Management Bus) de-
vices. SMBus devices communicate by means of the SMBus with an SMBus
host and/or other SMBus devices. SMBus is a specific implementation of an I
2
C
bus, which is a multi-device bus; that is, multiple chips can be connected to the
same bus and each one can act as a master by initiating data transfer.
CUBX-L/CUBX-E SMBus Connector
SMBCLK
Ground
SMBDATA
+5V
1
SMB
®