For motherboards with a IrDA compliant Infrared Module connector.
1 2 3 4 5 . . . . .
5 PIN IDC MALE at the motherboard.
| Pin | Name | Description | 
|---|---|---|
| 1 | +5v | Power | 
| 2 | n/c | Not connected | 
| 3 | IRRX | IR Module data received | 
| 4 | GND | System GND | 
| 5 | IRTX | IR Module data transmit |