Power Line Communication

Power line communication (PLC) carries data on a conductor that is also used simultaneously for AC electric power transmission or electric power distribution to consumers. It is also known as power line carrier, power line digital subscriber line (PDSL), mains communication, power line telecom (PLT), power line networking (PLN), and broadband over power lines (BPL).

A wide range of power line communication technologies are needed for different applications, ranging from home automation to Internet access. Electrical power is transmitted over long distances using high voltage transmission lines, distributed over medium voltages, and used inside buildings at lower voltages. Most PLC technologies limit themselves to one set of wires (such as premises wiring within a single building), but some can cross between two levels (for example, both the distribution network and premises wiring). Typically transformers prevent propagating the signal, which requires multiple technologies to form very large networks. Various data rates and frequencies are used in different situations.

A number of difficult technical problems are common between wireless and power line communication, notably those of spread spectrum radio signals operating in a crowded environment. Potential interference, for example, has long been a concern of amateur radio groups.

Read more about Power Line CommunicationBasics, Long Haul, Low Frequency, High-frequency (≥1 MHz), Home Networking (LAN), Broadband Over Power Line (BPL), Automotive Uses, Standards

Other articles related to "power line communication, communications, power line, power, power lines":

Power Line Communication - Standards - Standards Organizations
... for high-speed powerline, coax and phoneline communications ... developing the global standard for high speed powerline communications ... In July 2009, the working group approved its "IEEE 1901 Draft Standard for Broadband over Power Line Networks Medium Access Control and Physical Layer Specifications" as an IEEE draft standard for broadband over power ...
Automatic Meter Reading - Technologies - Power Line Communication
... PLC is a method where electronic data is transmitted over power lines back to the substation, then relayed to a central computer in the utility's main office ... built and maintains to deliver electric power ...

Famous quotes containing the words power and/or line:

    Of a truth, Knowledge is power, but it is a power reined by scruple, having a conscience of what must be and what may be; whereas Ignorance is a blind giant who, let him but wax unbound, would make it a sport to seize the pillars that hold up the long- wrought fabric of human good, and turn all the places of joy as dark as a buried Babylon.
    George Eliot [Mary Ann (or Marian)

    Experience has taught me, when I am shaving of a morning, to keep watch over my thoughts, because, if a line of poetry strays into my memory, my skin bristles so that the razor ceases to act.
    —A.E. (Alfred Edward)