These signals involve short RF bursts which represent digital information. X-10 transmissions are synchronized to the zero crossing point of the AC power line. The signals are sent only on the same phase as transmitted on. These are remote devices or transmitters which allow you to control the variety of receivers installed on your household wiring. There are a wide range of devices available.
Some devices simply plug in to electrical outlets.
Others are hard wired. Push a button for the corresponding lights turn on or off. Other examples are motion detectors, hand held wireless remotes, Telephone Line Interfaces, etc. If, Then situations can be handled by the Interface. Recommended in homes over 2500 square feet.