APPARATUS AND METHOD FOR TRACING JUMPERS IN A MAIN DISTRIBUTING FRAME

摘要

An apparatus and method for tracing jumpers in a wiring rack such as the main distributing frame of a telephone central office utilizes a sensor such as a magnetic core around cables accessing the frame. Sensors along respective horizontal and vertical divisions of the frame are interconnected by respective address wires to form a location matrix. An appropriate identification signal is applied to either the address wires sequentially or to the jumper to be traced and the jumper or address wires, respectively, are monitored to detect a signal induced thereon by the appropriate sensor responding to the indentification signal. The particular address wires having a signal thereon simultaneous with the particular jumper specify the location of the activated sensor and hence the location of the end of the jumper.