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SIR1: Serial infrared port
The mainboard supports a Serial Infrared (SIR) 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
1
Not assigned
2
(No Pin)
3
+5V
4
Ground
5
IRTX
6
IRRX
J3: Serial IRQ header
This header allows you to install the Serial IRQ connector.
Pin
1
NC
2
GND
3
KEY
4
NC
5
GND
6
Serial IRQ
SPDIF1: SPDIF out header
You can purchase an optional 24-bit digital audio extension bracket from a
third-party vendor. You can use the audio RCA jacks to connect to digital au-
dio devices. If your CD-ROM/DVD drive has digital audio output, you can
connect it to the input pins of the SPDIF connector.
Pin
1
SPDIF Out
2
VCC
3
KEY
4
GND
Signal Name
(reserved for OEM use only)
Signal Name
(reserved for OEM use only)
Signal Name
22
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