Method and apparatus for digital time domain reflectometry

摘要: A digital time domain reflectometer includes a pulse generator for generating test to cable under and comparator circuits determining whether reflected voltage exceeds user-selected bias values thus indicating an impedance mismatch. Signal processing means which may include computer associated logic set the values, trigger record at was observed. The operate in search mode it examines entire faults of increasingly less severity or be used determine signature by examining all along its length.