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Part II: Tomorrow’s Technology > Networking Using the Electrical System: HomePl...

Chapter 38. Networking Using the Electrical System: HomePlug Powerline Alliance

A new alternative to Ethernet, wireless, and phone line networks is called powerline networking. This technology promises to offer a new way to connect devices and appliances within the home by using existing electrical infrastructure. It actually uses your home’s electrical wiring system to provide the network connection via any electrical outlet. One of the benefits of this method is the ubiquity of connections already installed in the home—often two or more electrical outlets per room compared to just a handful of phone-line connections per entire home.

One of the challenges of delivering data over the power supply is that these types of networks are very noisy and variable in terms of interference because they were not designed to carry digital data transmissions. When electrical devices are turned on and off, they can cause spikes and other noise patterns that can distort the electrical signal and the data signal riding along with it.


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