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Installing the Motherboard
IR1: Infrared header
The mainboard supports an Infrared (IR1) data port. Infrared ports allow the wireless
exchange of information between your computer and similarly equipped devices such as
printers, laptops, Personal Digital Assistants (PDAs), and other computers.
Pin Signal Name Function
1 Not Assigned Not assigned
2 Key No pin
3 +5V IR Power
4 GND Ground
5 IRTX IrDA serial output
6 IRTX IrDA serial input
CD_IN: Analog Audio Input header
1394A2: Onboard IEEE 1394a header (optional)
Connect this header to any device with IEEE 1394a interface.
Pin Signal Name Function
1 CD in_L CD In left channel
2 GND Ground
3 GND Ground
4 CD in_R CD In right channel
Pin Signal Name Function
1 TPA+ 2 TPA-
3 GND 4 GND
5 TPB+ 6 TPB-
7 Cable-Power 8 Cable-Power
Pin Signal Name
Pin Signal Name
9 Key Pin 10 GND
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