What is Powerline Communications (PLC)? Internet access via the socket
U of everyone in the room is the socket, and even a little, but not all know that they can be used for a high-speed information exchange. The exchange occurs not between you and the socket - such information though on 220 volts and is informative, but to us it to anything. And here to be connected to the Internet without problems from any corner where there is a socket - conveniently and mobile. And now even perhaps thanks to the Powerline Communications (PLC) technology.
That is, now from two holes of the most ordinary socket you will receive not only electricity, but also data - all in one stream. To enter the Internet, it is enough to insert into the ordinary electrosocket of small PLC - the modem reminding the device for charging of the mobile phone. In the modem there is a standard socket for connection of a cord of the computer, and it is only necessary to connect the personal computer to this socket to begin to download data from the Internet.
The PowerLine technology is based on frequency division of the signal transmitted on power cable lines when the high-speed data flow breaks into slightly low-speed each of which is given at a separate frequency with the subsequent their association to one signal.
Thus, “ usual “ the power supply network can deliver at the same time the electric power and data on one chain (line). At this PLC - devices can “ to see “ and to decode information.
Connection with the Internet in this innovative technology is called Broadband over power lines (BPL).
Unlike DSL - connections, by means of a home network the technology allows the bigger number of people to have broadband Internet access, for this purpose the computer of the user is enough to be connected to the power supply network.
The PLC technology - the cheapest way of creation of a home network as does not demand from the user of installation of additional cables of food and allows to connect to the PLC network of inhabitants of the whole quarter. One master - the device is capable to provide access to Internet through the PLC network for 500 users. For this purpose users have to have at themselves in apartments the adaptor devices containing PLC modems.
Of course, most of all successful projects on the organization of broadband access through power supply networks it is realized in the USA - in the homeland of the Internet.
Are known such companies as New Visions (New - York), Communications Technologies (piece Virginia), Cinergy (piece of Ohio).
In Germany offer PLC Vype; Piper - Net and PowerKom; in Austria - Speed - Web; in Sweden - ENkom; in the Netherlands - Digistroom; in Scotland - Broadband.
In 2005 and in the Russian Federation expansion of networks of Internet access through household electric networks on the PLC technology began.
Internet access evolves, and soon even at itself at the dacha where there are no telephone and cable lines, it will be possible to be connected to the Internet.
Also exotic examples as communication on the basis of transfer of a radio signal through metal pipes of the gas pipeline are known (BIG - Broadband - in - Gas). Who knows
, maybe, having hindrances in a gas pipe, you will invent one more technology of connection to the Internet.