Patent ID: 6584197
Filing Date: 2003-06-24
Classification: H04M,Y02D

Abstract:
A system for managing the application of power to a digital data services telecommunication device terminating a powered telecommunication span and being coupled to receive power from a local utility interface comprising:a local utility interface which isolates and transforms a local utility voltage to a prescribed DC level; a main power converter coupled to said local utility interface and being operative to supply regulated voltages for communication subsystems of said telecommunication device; a span interface which interfaces telecommunication signals between said telecommunication device and said telecommunication span, and sinks wetting current from said telecommunication span, and contains a power limited converter which is controllably operative, in response to insufficient power being supplied by said local utility interface, to derive a limited amount of power from said telecommunication span sufficient to operate said telecommunication device; and an auxiliary energy storage device coupled to said main power converter, and wherein said power limited converter is operative, in response to a reduction in or loss of power from said local utility interface, to controllably store energy in said auxiliary energy storage device from a limited amount of power extracted from said telecommunication span.