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infoinfo964
infoinfo964
Visitor II
October 16, 2010
Question

Power Over Internet ( POE)

  • October 16, 2010
  • 2 replies
  • 688 views
Posted on October 16, 2010 at 19:01

Power Over Internet ( POE)

    This topic has been closed for replies.

    2 replies

    Andrew Neil
    Andrew Neil
    Super User
    May 17, 2011
    Posted on May 17, 2011 at 14:11

    @AlexDion - In case you don't get  Clive1's hint, the clue is in the name (or, rather, the acronym):

    ''Power Over

    I

    nternet (Po

    E

    )''

    PoE stands for Power over Ethernet - not Internet!

    A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.
    Tesla DeLorean
    Tesla DeLorean
    Guru
    May 17, 2011
    Posted on May 17, 2011 at 14:11

    Not sure my internet is powered, ethernet perhaps?

    Generally you want them to be robust and fault tolerant, TI has a host of solutions. Do you need it to be 802.3af/at compliant, or you just want to push power over the cable. There are solutions which just push DC over the unused pairs, and crude implementations pretty much just use a regulator at the peripheral end. If you are using unshielded cables that might also be a concern if you have appreciable current, or RF leaking out.

    http://focus.ti.com/analog/docs/gencontent.tsp?familyId=64&genContentId=938

    http://www.ti.com/ww/en/analog/poe/index.htm

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