Abstract: A system for locating corresponding ends of a communications or data patch cable used to conduct a signal between computing or telecommunications devices. The invention provides a physical indication of the location of an opposite end of a given patch cable when a switching means on the first end of the same cable is activated. The invention utilizes an existing pair of wires in category-type cables to send a DC voltage when activated to illuminate a light emitting diode in the opposite end of a patch cable thereby providing an immediate indication of the location of the termination of the opposite end of a patch cable making it possible to visually identify a cable without removing the cable from service or from connection of the modular plugs on either end of the cable.