Since I came again and again to the question when reading recessions why the adapter part has a connection speed that below which is far, what he should do, according to designation, I want to briefly below explain times / say a few things about technology PowerLAN. The one or the other helps perhaps in the judgment or troubleshooting. I'll try to figuratively and not too technical to explain, so you have the chance to understand the principle behind PowerLAN.
As a basis for data transfer serves PowerLAN the sinusoidal signal (50 Hz) in the power line. If one just can not remember what a sinus is, then please shortly thereafter look into a search engine. This is important for understanding. "Superimposed" The PowerLAN Adapter be data signal with the sinusoidal signal (amplitude modulation). The sinusoidal signal, which is a very smooth curve in the optimal case, now gets little prongs. These spikes represent the data that is transferred to the power line. The 2nd adapter that is to receive the data, looking down on the sine signal after these spikes and possible to deduce from the data signal.
Which can now be disrupted the transmission speed? There are several reasons.
1. Do not be influenced or little interference:
This includes the quality of the wiring, sockets, light switches, etc. Each component that is involved in the structure of the electricity network, the signal may interfere more or less. In particular, the contact points at which the cable is connected for example to the wall outlet, can already produce noise that disturbs the sinusoidal signal and thus reduces the transmission speed.
Another reason for disorders of the adapter itself. The signal is fed from the transmitter into the power grid and is then distributed throughout the power grid. At cable ends, therefore sockets, other electric appliances, etc., the signal is then partially reflected. The tines in the sinusoidal signal are no longer so high but by superimposing etc ... has in effect again negative influences on the connection speed.
How do I know that? Without no appropriate equipment and training. The effects, however, are generally low, so it does not matter anyway.
2. Influenceable interference.
Typically, these include power supplies of electrical appliances. Here is often decides the price of each device, how strongly disturb their power supplies the house network. It's here usually also make a difference if the equipment is switched on or remain on stand. Activated devices interfere usually stronger. In standby, the equipment but still disturbing.
How do I know that? There are ways that you can easily implement, but which are associated with some work and running around. In my case (1 Adapter and DSL router in the living room and 1 adapter and computer in the office), I would do the following, if I had problems with the transmission power:
All fuses the other room making (This saves the plug) -Please be careful that the refrigerator and the freezer are not too long without power and the washing machine did not degrees in the middle of the work is ;-) - In the living room of all the electrical appliances Steckerziehen. Insert the DSL router in the socket of the Devolo adapters because this outlet a filter is installed. The Devolo adapters and DSL routers are the only devices that are connected to the power grid in my living room. In the office, it looks well, except that it puts the power strip of PCs in Devolo adapters. Then test the transmission speed again. Is this much better, the problem is at least one device in the house. In that case I would first connect all other devices in the office again and test again. Then test in the living room and again and again to make room for the rooms fuses and also always test. You notice a performance penalty then, the equipment in the room back out and individually tested at a space all.
If you have one or more devices that interfere identified, then you can buy a socket with integrated mains filters, and then operate the unit above. That should help.
Another reason for a greatly reduced transmission power can be a lack of phase coupling. A residential building is connected via a three-phase connection to the public grid. Drehstomsteckdosen there in some houses still. These are the big red sockets. The normal outlets do not use three-phase alternating current but. The obtained in that one instead of the 3 phases of the three Toms uses only 2 phases. For the public grid, it is important that all 3 phases are equally loaded. Therefore, the electrician single room shares to single phase pairs. Now it may be that in the room where one is the adapter, another pair is used as a phase in the room where is the 2nd adapter. In the case then there is only one phase, a compound from one room to the next. Thereby, the transmission power also drops significantly. Thus, data signals can still spread all over the house power grid, there is a component that is called phase coupler. Through this the 3 phases of the three-phase network are interconnected so that data signals can spread throughout all phases. The Phasenkopller is usually installed in the distribution box. The installation may only be carried out by an expert!
In order to get out if you need a phase coupler helps a call to the electrician. The number is often in distribution box or in the Property Management. In older buildings, is the probability that none is installed higher. In apartment buildings, it is often the case that individual apartments use only one pair of phases and therefore you do not need a Phasenkopller.
In some FAQ about DLAN receiver is that these do not need a phase coupler. That's right, then usually, but even that is highly dependent on many factors. And even if all goes well, the transmission power is significantly lower than would be the case with phase coupler.
That would have been the main reasons that come to mind here in a hurry and I hope I can maybe help one or the other with the information.
