Patent ID: 6519321
Filing Date: 2003-02-11
Classification: G01R,H04M

Abstract:
A power fault testing apparatus for testing telecommunications interfaces, comprising:a variable autotransformer unit coupled to a three-phase power source through a power relay, said variable autotransformer unit operating to provide a power output selectably switchable to a first load resistor bank, wherein said first load resistor bank interfaces to a tip-and-ring interface of an equipment under test (EUT) operable to be disposed in a test chamber; a first fixed transformer selectably coupled to said power output of said variable autotransformer unit in a current boost configuration, said first fixed transformer operating to provide selectably switchable power at a first level to a second load resistor bank, wherein said second load resistor bank interfaces to a coaxial cable interface of an EUT operable to be disposed in said test chamber; and a second fixed transformer selectably coupled to said power output of said variable autotransformer unit in a voltage bucking configuration, said second fixed transformer interfacing to said coaxial cable interface to apply a selected power thereto.