The TL-FO-DVI replaces a traditional DVI cable with active electronics designed specifically for sending video signals up to 1,000 feet. Simply connect the TL-FO-DVI transmitter to your source device (often a switcher, matrix, video processor or computer), connect the TL-FO-DVI receiver to your destination device (often a display or projector), connect the two units with a fiber optic patch cord and connect the power supplies.