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    Power Over Ethernet Interoperability Guide

    By: Sanjaya Maniktala

    Date Released

    Out of Print

    A Complete Guide to Transmitting Electrical Power and Data over Ethernet Cables

    Power over Ethernet Interoperability explains how to safely transmit DC power over an existing data network cabling structure so that separate AC electrical wiring is not needed to power up devices connected to the network. With a focus on cost-effective unshielded twisted pair (UTP) cables, this book provides proven methods for designing reliable Power over Ethernet (PoE) equipment and ensuring that it functions effectively. Details on the IEEE 802.3af/at standards and how various devices can operate from PoE are also contained in this practical resource.

    Coverage includes:

    The evolution of PoE

    Overview of PoE implementations



    Inrush and power-up


    Maintain power and disconnect

    PoE state-machine diagrams


    Isolation, PCB design, and safety

    Surge testing and protection

    Lab skills, thermal management, and decoupling

    N-pair power delivery systems

    Auxiliary power and flyback design

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