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Dynamic power management in a power over ethernet system

  • US 7,706,392 B2
  • Filed: 08/11/2006
  • Issued: 04/27/2010
  • Est. Priority Date: 08/19/2005
  • Status: Active Grant
First Claim
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1. A network device comprising:

  • a dynamic power management controller adapted for coupling to a network connector that connects to a network cable in a configuration that transfers power and communication signals to a Powered Device (PD), the dynamic power management controller configured to transmit power management information over the network cable at a Transmission Control Protocol/Internet Protocol (TCP/IP) layer and/or a Media Access Control (MAC) layer;

    the dynamic power management controller further configured to send detection and classification information in a plurality of phases and a plurality of cycles at a physical layer from the Powered Device (PD) to a Power Sourcing Equipment (PSE).

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