AA280 Motherboard
23
Pin Signal
Name
1
2
3
5VSB
GROUND
SENSE
If you have installed a modem, use the cable provided with the modem to
plug into the mainboard WOM1 connector. This enables the Wake On
Modem (WOM1) feature. When your system is in a power saving mode,
any modem signal automatically resumes the system.
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 As-
sistants (PDAs), and other computers.
Pin Signal Name
Pin
Signal Name
1
3
5
Reserved
VCC
IRTX
2
4
6
Cut away
Ground
IRRX