IR1: Serial infrared port
The mainboard supports an Infrared (IR) 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 IRRX
IrDA
serial
input
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 audio
devices. If your CD-ROM/DVD drive has digital audio output, you can connect
it to the input pins of the SPDIF connector.
Pin
Signal Name
1 SPDIF
Out
2 VCC
3 KEY
4 GND
COM2: Onboard serial port connector
Connect a serial port extension bracket to this header to add a second serial
port to your system.
Pin
Signal Name
Function
1
NDCDB
Data carry detect
2 NSINB
Serial
Data
In
3 NSOUTB
Serial
Date
Out
4
NDTRB
Data terminal ready
5 GND
Ground
6 NDSRB
Date
set
ready
7 NRTSB
Request
to
send
8
NCTSB
Clear to send
9 NRIB
Ring
Indicator
10 Key
Key
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