Patent ID: 6804351
Filing Date: 2004-10-12
Classification: H04M

Abstract:
A data terminal equipment (DTE) device comprising:a port having a plurality of electrical conductors for communicating with a communications device; a first transformer winding coupled to a first pair of said plurality of electrical conductors and a first center tap disposed in said first transformer winding; a second transformer winding coupled to a second pair of said plurality of electrical conductors and a second center tap disposed in said second transformer winding; a power processor having a first and second input for receiving phantom power and a first and second output for providing electrical power to the DTE device; a switch controlled by a signal on said first pair of said electrical conductors, said switch having a switch input coupled to said first center tap and a switch output coupled to said first input of said power processor, said second input of said power processor coupled to said second center tap; and an identity network coupled between said first center tap and said second center tap.