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Power over Ethernet -- Ready to Power On? By Beth Cohen and Debbie Deutsch
May 19, 2003
Consider the following scenarios:
Have you ever imagined what you could do if the network cabling you already have in place (or that you're going to have to install anyway) could also support electrical power? Think of the possibilities for simplifying your infrastructure support. You no longer need to imagine such a scenario, because with the forthcoming new IEEE standard 802.3af, also known as Power over Ethernet (PoE), your dreams of power over network wiring are now a gigantic step closer to reality. Power over Ethernet promises to enable these applications and many more by providing up to 12.95 watts of power (at 48 volts) over the same Category 5 cable that already delivers your standard 10/100/1000Mb Ethernet service. You're probably thinking this all sounds so great that there must be a catch somewhere, when in fact this technology is real and is rapidly becoming more widely available. With the new standard's official approval expected in the next few months, let's explore the technological frontier and find out what PoE is all about and how it can make your life easier.
Page 2: What is Power over Ethernet?
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