Power Via Ethernet

Anonymous Patron writes “There’s Broadband Over Power Lines, and now Power Over Ethernet?
Ethernet cables cannot carry a great deal of power – just 13 watts, under the 802.3af standard, ratified last June by the Institute of Electrical and Electronics Engineers. But that is enough for items like telephones, security cameras, loudspeakers and wireless network access points. It gives corporate dreamers hope that, one day, the snake’s nest of wires and power cables under the desk might be reduced, or even replaced by a single cord. Data and electricity can travel over the same wires because they are at opposite ends of the frequency spectrum, said Steven B. Carlson, who led the I.E.E.E. task force on what is called the Power Over Ethernet project.”