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Concept
X10 (industry standard)
Summary
X10 is a protocol for communication among electronic devices used for home automation (domotics). It primarily uses power line wiring for signaling and control, where the signals involve brief radio frequency bursts representing digital information. A wireless radio-based protocol transport is also defined.
X10 was developed in 1975 by Pico Electronics of Glenrothes, Scotland, in order to allow remote control of home devices and appliances. It was the first general purpose domotic network technology and remains the most widely available.
Although a number of higher-bandwidth alternatives exist, X10 remains popular in the home environment with millions of units in use worldwide, and inexpensive availability of new components.
In 1970, a group of engineers started a company in Glenrothes, Scotland called Pico Electronics. The company developed the first single chip calculator. When calculator integrated circuit prices started to fall, Pico refocused on commercial products rather than plain ICs.
In 1974, the Pico engineers jointly developed an LP record turntable, the ADC Accutrac 4000, with Birmingham Sound Reproducers, at the time the largest manufacturer of record changers in the world. It could be programmed to play selected tracks, and could be operated by a remote control using ultrasound signals, which sparked the idea of remote control for lights and appliances. By 1975, the X10 project was conceived, so named because it was the tenth project. In 1978, X10 products started to appear in RadioShack and Sears stores. Together with BSR a partnership was formed, with the name X10 Ltd. At that time the system consisted of a 16 channel command console, a lamp module, and an appliance module. Soon after came the wall switch module and the first X10 timer.
In the 1980s, the CP-290 computer interface was released. Software for the interface runs on the Commodore 64, Apple II, Macintosh, MS-DOS, and MS-Windows.
In 1985, BSR went out of business, and X10 (USA) Inc. was formed.
Official source
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