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 |
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