Patent ID: 7994929

Claim:
A patch panel port configured to support a connection between a first cable with a first and second wire pair at a first cable interconnect to a second cable with a first and second wire pair at a second cable interconnect comprising: a first transformer with first and second coils; a second transformer with first and second coils, wherein the first coil of the first transformer is electrically coupled to the first wire pair of the first cable at the first cable interconnect, the first coil of the second transformer is electrically coupled to the second wire pair of the first cable at the first cable interconnect, the second coil of the first transformer is electrically coupled to the first pair of the second cable at the second cable interconnect, and the second coil of the second transformer is electrically coupled to the second wire pair of the second cable at the second cable interconnect; and cable detection circuitry electrically coupled to a center-tap of the first coil of the first transformer and a center-tap of the first coil of the second transformer.