The YZ810-101 VGA-UXGA wall panel allows the video and audio from a computer to be presented through the Showtime system. The audio input uses a 3.5 mm jack and the video input is a standard 15-pin HD female connector. The signals are combined and output over two standard CAT 5 cables attached to the rear of the unit inside the wall. External power is not required since the unit receives power from the Showtime switcher. There is a Power/Signal Present LED on the front of the panel. The LED is on and red if the unit has power. The LED changes from red to green when a valid computer video signal is present.