WIFI technology may encounter
distribution problems when parts are too
isolated, blocked surfaces when the wave propagation. The Powerline adaptor is used in most cases to overcome
the problem of WiFi.
Powerline is first used for home automation. It is only from the
2000s that it will be used in a public use.
In the 1950s, this technology was used to control public lighting.
The frequency that was used at that time was 10Hz.
Then, in the early 2000s many experiments were conducted. Many
research projects have taken place.
In 2005, the HOMEPLUG standard arrives with a speed of about 85
Standards then evolved in 2007, 2010, which resulted in much higher
This technology proposes to set up a home network where the
data will flow through the electrical
system of the house.
The electrical power of the home is composed of an electric meter
and cable going to each socket.
The current passing through these cables is of 50Hz frequency.
The principle of the PLC is to broadcast computer
data on this electrical network by diffusing them simultaneously with the
current flowing through it. Data circulates on the other hand
at a higher frequency, but low energies. It is between 1.6 and 30
How to use the PLC (Powerline Communication)
First you need to have an internet connection with a box provided by
Next, connect the Internet box and the first PLC box using an RJ45
his box should be plugged directly into an electrical outlet.
Then, simply connect your electronic device, always using an RJ45
cable to a second PLC box that will also be connected directly to an
You can find these products in trade.
On certain model pairing of the two boxes (adaptor) will be done by
pressing the button on them in the same time.
Some adaptor includes a wireless access point, it can afford to
broadcast a wireless signal in an area that could be far from the
It should be known that the data transit on the electrical network,
so they are difficult to access compared to a Wifi broadcast. The electric meter is supposed to block the spread
outwards but some cases have led to see that the leaks seem
It is therefore advisable to buy PLC boxes incorporating a data encryption system.