TV sockets: through-through and end-to-end tv socket, difference and connection

Today on the market there can be found terminal, single and pass-through TV sockets. The listed products are characterized not only by the name, but also have a different design and purpose. Terminal and straight-through TV sockets, the difference of which is both in design and in application - these are just some of the types of those TV sockets that are available today.

Unknowingly, some people use them not quite correctly. Because of this, a negative attitude towards such electrical outlets is formed and is growing dissatisfaction with the quality of the TV signal. However, the correct installation of the desired type of socket is quite capable of correcting this situation. Therefore, in order not to become a victim of ignorance in the same way, we will talk in more detail about the types of TV outlets, and also determine the purpose for which each of them is designed and what it is needed for.

Types and schemes of use

To fully understand the specifics of installing TV sockets, as well as to understand where and what type is used, how to connect a TV outlet, you need to consider not only their design features, but also the circuits connections. Since for wiring the coverage of a television signal, based on its frequency, various methods and connection schemes are used.

The structure of different TV sockets

Let's start with the differences that TV outlets have. It is conditioned various fields of application, which we will talk about below.

Let's start with the simplest TV socket - single. The specified socket is simply a contact connection, which makes it possible to connect the TV antenna cable to the network. According to the instructions of the manufacturing plants, the degree of signal drop in them does not exceed 1 - 2 dB, which is caused only by the transition resistances of contact mergers.

The terminal socket in this matter is an order of magnitude more complicated. In addition to the direct contact connection, it also contains a special circuit, which is intended to "extinguish" the reflected signal.

Description of the circuit

The bottom line is that each TV not only picks up the television signal, but also returns part of it to the network. The part that it returns is commonly referred to as the reflected signal. Compared to the main one, the power of the reflected signal is not so high, however, together with several TVs, this can cause significant interference.

Reflected signal can be seen on some other TV as a superimposed image or as noise. And in order to avoid this effect, a special circuit is used to suppress the reflected signal.

As a result, the terminal socket, with the exception of losses of 1 - 2 dB, which are caused by switching resistances, still suffers losses from 8 to 15 dB, which also cause the specified filter to work.

Be careful! GOST 28324–89 unambiguously states that the signal frequency should be 57–83 dB. Increasing, let alone decreasing, signal strength can lead to interference and a decrease in the proper image quality. As a result, it turns out that even the presence of one terminal socket significantly reduces the signal level.

But the device of the through socket is even more complicated. In addition to the filter and the contact connection itself, it contains one more contact interface for connecting other TV sockets. As a result of a decrease, the signal level at such an outlet can reach about 15 - 20 dB.

At the end of such a scheme the terminal socket is mandatory installed. It differs from the checkpoint, as we have already found out, only by the presence of only one entrance. And its filter is entirely controlled with the reflected signal.

The main disadvantage of this connection method is the gradual deterioration of the signal in each subsequent outlet. At the same time, the cost of implementing such a scheme is significantly lower due to the lack of the need to purchase an antenna socket - a splitter.

Quite often and effectively the so-called hybrid or a mixed scheme. Its essence lies in the summing up of part of the sockets according to the pass-through scheme, and the part according to the "star" scheme. This makes it possible to save money with a fair removal of devices for connection from the splitter.

Connection algorithm

The question of how and in what cases the through socket should be used has been considered in detail, now you can proceed to the task of connecting it. It is quite possible to carry out this procedure on your own, and this does not require special tools or skills.

1. First, you need to install a mortgage box for mounting the socket. For television sockets, they use the same mortgages as they take for power switches and sockets. To do this, you will need to drill a hole of the appropriate diameter in the wall. This can be done by means of the appropriate attachment to the hammer drill.
2. After that, we put the mortgage box. It can be fixed with self-tapping screws, or you can simply put it on gypsum putties.
3. After that, you need to stretch the TV cable to the outlet and go from it to the next outlet. As a rule, the cable is hidden from prying eyes, therefore, one cannot do without chipping the walls. Otherwise, the cable is mounted on the wall in a special plastic box.

Be careful! Mount TV cable together with power wires is prohibited. Since damage to the power wiring can lead to a large voltage on the TV cable. And this, again, will lead to malfunction of all TVs. Moreover, the power cable can also interfere with the broadcast.

Now we proceed directly to connecting the TV outlet.

1. We pre-strip the two cables to be connected.
2. After that, we connect the incoming cable. The proper connection point on the socket is indicated by arrows or numbers. To do this, unscrew the screws securing the central braid and cores and start the cable. Before clamping the cable, make sure that the center conductor and the braid are not touching anywhere.
3. Then, in a similar way, we connect the cable that powers the next outlet. It is very important at this stage not to confuse the outgoing cable with the appropriate cable. Otherwise, everything is exactly the same. Now we check whether the central core and the braid do not touch, and also that the cables do not touch each other.
4. After that, a stock of cable is laid in the mortgage box and, finally, the TV outlet is fixed.

After completing all these steps, you can start connecting the next socket.

It should also be mentioned that numerous manufacturers, in an effort to speed up and facilitate the installation process, have used all kinds of folding locks and spring clips. But still, the process of installation has not really changed from the innovations. The only thing they were able to eliminate was the need to use a screwdriver.

As you can see, the installation process of terminal, loop-through or single TV sockets is not so laborious. In this matter, the main condition is to choose the right the outlet itself and its connection diagram. We hope that our article has guided the reader in this matter, and now anyone can easily choose and connect exactly the TV outlet that suits a particular circuit.