Abstract: An apparatus for identifying the location of the terminal end of one or more wire pairs in a structure having a first end at a common origin, a microprocessor sequentially scans voltage applied on the first ends of each of the plurality of wire pairs, storing in memory a value relative to the voltage reading of the selected wire pair and identifying which wire pair has a change in value to a previously stored value when a user changes the status of the second end of each wire pair at the remote location. The microprocessor sends a wireless signal to a hand held device identifying the selected wire pair with the changed status and the user located at the remote location records the physical location of the second end of the wire pair relative to the identity of the first end of the wire pair.