Patent ID: 8044747

Claim:
A system that enables power delivery over a single twisted wire pair to a powered device, comprising: a data transformer having a first end and a second end; a first direct current blocking element having a first side coupled to a first end of said transformer, and a second side coupled to a first wire of the single twisted wire pair; a second direct current blocking element having a first side coupled to a second end of said transformer, and a second side coupled to a second wire of the single twisted wire pair; a first alternating current blocking element having a first side coupled to said second side of said first direct current blocking element, and a second side coupled to a power sourcing equipment; and a second alternating current blocking element having a first side coupled to said second side of said second direct current blocking element, and a second side coupled to said power sourcing equipment, wherein said power sourcing equipment provides power to the powered device through the single twisted wire pair via said first and second first alternating current blocking elements.