Abstract: An office ID remote that creates an oscillating waveform with a predetermined characteristic on a conductor found in a cable is provided. This characteristic is typically the rate of repetition of the waveform that can be compared to a table of rates of repetition stored in a main test unit that correlates each rate of repetition to a particular office ID remote. This allows the identity of the cable to be ascertained.
Type:
Application
Filed:
June 4, 2007
Publication date:
December 10, 2009
Applicant:
TEMPO EUROPE LIMITED
Inventors:
Paul Denis Driscoll, Carl Linsey Nurton, Mark Samuel Govier
Abstract: A telephonic apparatus comprises terminals for connecting it to respective electric cables, telephonic circuitry, and a switch between the terminals and the circuitry. It also includes a sensor for detecting a DC voltage above a first level between said terminals. It the sensor detects a DC voltage between said terminals above the first level, it prevents the switch from connecting the circuitry between the terminals.