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Power-over-Ethernet: IEEE 802.3af Draft

Posted by Hemos on from the like-ma-no-extra-wires dept.

SkewlD00d writes "Want power (~10W) and your fat 10/100Mbps pipe (1Gbps maybe) on the SAME jack. Surf the web and recharge your handheld w/o finding its clunky base/transformer, home automation, and control systems are just some of the possibilities. Using suitable hubs/switches or dongle, power can be provided over unused pairs, or possibly raise the signal offset above DC, X10-style (no link, u know why). See IEEE 802.3af DTE Power via MDI Task Force. Maxim (not that one :o) already has some goodies. They have schematics for 8.25W/12.5W single-output and 14.2W triple-output 802.3af PSU. Try FindChips if you're looking for them; they're in production and are NOT vapor-ware!"

11 of 172 comments (clear)

  1. Already been done by DigiShaman · · Score: 3, Funny

    You just need one of these. http://home.t-online.de/home/w.robel/m_mcbike/humo r_2/ethernetkiller.jpg

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    Life is not for the lazy.
  2. yawn by SlashdotLemming · · Score: 3, Funny

    Wake me up when they invent wireless power.

    :)

    1. Re:yawn by john82 · · Score: 2, Funny

      "Large powerful orb discovered in the sky. Thousands in New England turn beet red after prolonged exposure."

      Film at eleven.

    2. Re:yawn by DigiShaman · · Score: 2, Funny

      The day that happens is the day I will REALLY need a tinfoil hat!

      --
      Life is not for the lazy.
  3. This is only the first step... by dfenstrate · · Score: 3, Funny

    to implementing power over TCP/IP.
    Read the RFC Here.

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    Alcohol, Tobacco and Firearms should be the name of a store, not a government agency.
  4. Internet over powerlines... by urrbanlleg-end · · Score: 3, Funny

    Sweet ! Now you can get ethernet over power over ethernet !

  5. Wow a NAK signal with BALLS. by crovira · · Score: 3, Funny

    Imagine getting a kilovolt (at a kiloamp) back from a web site that's being slashdotted.

    Or better yet. Imagine sending THAT as a response to some Spam.

    That would take care of the problem PDQ.

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    MSBPodcast.com The opinions expressed here are my own. If you don't like 'em... Think up your own stuff.
  6. No way by Hard_Code · · Score: 1, Funny

    No way am I electrifying my dongle again.

    Fool me once, shame on your. Fool me the fifth time, shame on me.

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    It's 10 PM. Do you know if you're un-American?
  7. Does it support WiFi?? by Anonymous Coward · · Score: 1, Funny


    Would be great for my Palm Tungsten C (-:

    Seriously, this should be possible in another way: put a magnet in the Palm, have a huge magnet somewhere in the room that changes its poles rapidly which makes the Palm magnet turn... voila!

    Or is that far-fetched? ;-) Maybe some other devices in the room will not like the big magnet ;-)

  8. Act Today! by TrancePhreak · · Score: 2, Funny

    Just download IEEE_802.3af_FULL_REAL_WORKING_VERSION.exe

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    -]Phreak Out[-
  9. Re:FireWire already does this... by Anonymous Coward · · Score: 1, Funny

    I've had a difficult time in the past getting my firewire cable to plug into the rj-45 connector on the back of my access point.