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CWNA®: Certified Wireless Network Administrator Official Study Guide
book

CWNA®: Certified Wireless Network Administrator Official Study Guide

by David D. Coleman, David A. Westcott
April 2009
Intermediate to advanced content levelIntermediate to advanced
765 pages
19h 26m
English
Sybex
Content preview from CWNA®: Certified Wireless Network Administrator Official Study Guide

Chapter 17. Power over Ethernet (PoE)

IN THIS CHAPTER, YOU WILL LEARN ABOUT THE FOLLOWING:

  • History of PoE

    • Nonstandard PoE

    • IEEE 802.3af

    • IEEE Std. 802.3-2005, Clause 33

  • PoE devices (overview)

    • Powered device (PD)

    • Power-sourcing equipment (PSE)

    • Endpoint PSE

    • Midspan PSE

    • Power-sourcing equipment pin assignments

  • Planning and deploying PoE

    • Power planning

    • Redundancy

Power over Ethernet (PoE)

History of PoE

The concept of providing power from the network dates back to the birth of the telephone, which to this day still receives power from the telephone network. Computer networking devices that are often powered with PoE are desktop Voice over IP (VoIP) phones, cameras, and access points. Ethernet ...

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Publisher Resources

ISBN: 9780470438909Purchase book