Power Over Ethernet (PoE)

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Power over Ethernet or PoE is one of those things that sound difficult but actually at its simplest is very easy to use and a great way to reduce the number of cables.

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If you look next to the ‘L’ of Altoids, you can see the lens of a Luxeon LED poking through. What author have here is a modification of web morse flasher project described in his earlier blog about the EtherTen. The EtherTen is a combined Arduino and Ethernet board.

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By using PoE he could mount his useful messenger device on the wall, with only a single wire coming out of it (the Ethernet cable). This would provide both power and network connection.

The module he used to accomplish this magic trick is the Freetronics 4-Channel Power-over-Ethernet Midspan Injector.

Tags : 2101201, W5100, POE, EtherTen

Author : Simon Monk

Source : http://www.doctormonk.com/2012/01/power-over-ethernet-poe.html

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