HomePlug or Powerline, is a distribution network via standard electrical outlets. The technology consists of standards and devices that can be used in decision to connect a lot of devices to a network by taking advantage of the electrical wiring installed in a residence. Thus, the user can eliminate range of common problems and transmission network facilities in wireless
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The products compatible with this technology are created and approved by the HomePlug Alliance, a group that brings together major hardware manufacturers for computer networks.
This group sets technology operating standards and decide the parameters that each manufacturer must follow when creating and launching its HomePlug products. It is the same principle behind the organizations that govern USB, HDMI, Blu-Ray and other technological standards.
The technology has been around since 2000 and is quite popular in many European countries. In Brazil, the first products compliant with HomePlug started coming recently.
How it works
There are a number of formats and products that lead the HomePlug seal, but in general, all offer the same functions.
In a situation of typical use, HomePlug can be output to cause the signal Internet reaches that point the house where reading is always weak: using a technology compatible with the adapter, you can connect a cable Internet router to the closest outlet
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This will cause all electrical outlets, and the very threads of household electrical network, connected this network become distribution points Internet, provided they have HomePlug adapters connected.
Interestingly, in addition to distributing Wi-Fi signal, HomePlug can be used to connect devices to the Internet with RJ45 cables. To use the Ethernet cable, the user needs to plug the RJ45 port on a HomePlug adapter in the chosen outlet.
The speeds are high?
In ideal situations, the HomePlug Alliance states that the standard-compliant products must reach up to 500 megabits per second (Mbps) via cable and 300 Mbps using wireless signals.
They are very good numbers for any home network, but it is important to consider that these values are considered as peaks in ideal situations. In their products, manufacturers often set more realistic speeds of up to 150 Mbps
The video below shows a fairly simple installation HomePlug adapters:.
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But there is interference on the wires?
Electrical wires generate electromagnetic fields with the circulation of energy and a common question to whom interested in the HomePlug products is that the wires do not create interference with the Internet signal.
According to the HomePlug Alliance, the problem of interference is avoided because the technology works with low-frequency signals. In addition, the adapters that receive the network cables, or distribute the Wi-Fi signal, have filters to eliminate noise that would be caused by electricity.
What are the Disadvantages?
The downside of HomePlug is the fact that in Brazil, Internet repeaters compatible with the technology are still very expensive. The TP-Link offers Tl-Wpa4220kit classified as capable of reaching up to 500 Mbps, for values that revolve around R $ 450, for example .
The kit comes with two adapters, one must be connected to the router and the other in making the place where you want to distribute Internet. The D-Link markets in Brazil, the DHP-W220AV for prices of around R $ 300. Unlike the TP-Link, the HomePlug reaches speeds 200 Mbps.
For the same money, you can find high-performance routers in the domestic market. Also, if the need is just deploying Wi-Fi signal around the house, a repeater, costing somewhere around R $ 100, can perform the task, since there are many obstructions. If need be to expand the network via cable, the price is around $ 5 subway.
Advantages
The strength of the HomePlug is practicality: the idea is to distribute Internet with Ethernet cables, there is a need to hide them on the walls, which creates need for expensive hand labor and materials
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With regard to the wireless Internet, the conventional approach requires repeaters that depending on the location of the configuration in which they are installed, will not be the best solution to the problem.
The HomePlug is an output that can work around these two problems in domestic installations where sacrifices in terms of network speed can be done in search ubiquitous and stable signal and without the need for more drastic interventions such as what it would take an installation with cables.
Internet of Things
One of the bets for the future of the HomePlug is the use of technology in homes full of equipment and connected devices.
In these spaces, the use of HomePlug adapters can be quite interesting, as the developer of the technology standard works on new products able to meet this kind of demand soon.
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