Patent ID: 8199906
Filing Date: 2012-06-12
Classification: H04M

Abstract:
1. A powered device that receives power over a network cable that couples said powered device to a power source equipment, comprising: a physical layer communication component that enables data communication between said powered device and said power source equipment, said physical layer communication component being coupled to said network cable via data transformers; a powered device chip that is coupled to said network cable via said data transformers, said powered device chip including signature detection components that enable detection of said powered device by said power source equipment, and a power controller that controls power delivered by a field effect transistor to a load on said powered device; a host module that is coupled to said physical layer communication component, said host module being configured to support a Layer 2 communication protocol between said host module and said power source equipment; and a communication link that connects said powered device chip to said host module, said communication link enabling operation information from said powered device chip to be transmitted to said host module for communication of said operation information by said host module to said power source equipment via said Layer 2 communication protocol.