Not sure what you mean by digital IT input, do you mean receive signals from an infrared remote like your TV or amp remote?
If so, then the answer is yes - make sure you use the USB-UIRT, nothing else comes close if you do any reading at all on the forums or wiki you will find this is the recommendation. btw, IR control is less than ideal, if you have the option go with a more direct approach like RS232/serial or ethernet.