ECS P4VMM2 User Manual page 22

SIR1: Serial infrared port
The mainboard supports a Serial 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
1 Not assigned
2 KEY
3 +5V
4 GND
5 IRTX
6 IRRX
JUSBC: USB Card Reader Connector
This connector is for connecting internal USB card reader. You can use a card
reader to read or transfer files and digital images to your computer.
Pin Signal Name
1 VCC
2 USB-
3 USB+
4 GND
5 KEY
Note: The JUSBC is shared with one of the USB ports of the I/O back
panel. The USB port is located beside the serial port connectors.
See "I/O Ports" for more information.
Please check the pin assignment of the cable and the USB header on
the mainboard. Make sure the pin assignment will match before plug-
ging in. Any incorrect usage may cause unexpected damage to the
system.
Function
Not assigned
No pin
IR Power
Ground
IrDA serial output
IrDA serial input
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