What is ethernet lan on TV. Why LAN connector on TV (LG, Samsung, Sony)? Ethernet input, LAN

Several times I have met questions about Internet connectors on modern TVs. They say why is there a LAN connector on the TV, or why an Internet connector if there is no Smart TV. So I decided to write a small note in which to clarify the situation a little, and tell what's what.

Yes, now almost all modern TVs have a LAN connector. And on those TVs that support the Smart TV function, and those where this function is not. If with TVs that have Smart TVs, everything is clear, the network connector is there for connecting to the Internet, then with those where Smart TVs are absent, everything is not so clear.

And very often, having bought a regular TV without Smart TV, people try to connect it to the Internet, look for this very button to open the browser, etc. When you answer such comments that there is no Smart TV on such and such a model, they immediately write to you : “Why then LAN connector? So everything is there, but you don't know how to set it up. "

So look if your TV has Smart TV technology, and you can find out about this by looking at the characteristics of your TV (and preferably on the official website), then the network connector is actually used to connect the TV to the Internet. You can connect, or directly from the provider. But, in this case, problems may arise. If you connect the cable directly from the provider, then see the article. There I wrote about possible problems.
Also, I advise you to look in the specifications to see if your TV has a built-in Wi-Fi receiver. If there is one, then you can connect to the Internet via Wi-Fi. According to the instructions. If there is no Wi-Fi, then only by cable. And if it says something like “optional”, it means that you can buy and connect a branded, external Wi-Fi receiver.

And if there is no Smart TV, why then a LAN connector?

Most likely it is there to use DLNA technology. Here's a look at the characteristics of your TV model. Most likely, DLNA support will be indicated there. In a few words, DLNA technology allows you to network your TV, computer, and other mobile devices. So that you can watch movies, photos, or listen to music, which is located, for example, on your computer's hard drive. This is not an Internet connection, this is a local technology.

For more details on DLNA, and how to set up this technology, you can see in separate articles:

Well, we figured out what the network connector is for on the TV, which is of such great interest to users.

And when installing it, each of us dealt with LAN and WAN connectors. They are intended for different purposes but are used together, which can lead to confusion. Let's see what they are, what is the difference between them.

An Internet cable is connected via the WAN jack, local devices are connected via LAN

What is LAN

This type of connection will allow you to combine a number of computers located at a short distance from each other in a local environment.

When buying a router, you may notice four identical jacks of the same type on the back of the router. All of them are created for the purpose of connecting several PCs in one access point.

A LAN port is needed if you want to create a group to connect all equipment inside the house to the Internet. Thus, it is possible to create a network that will cover an area of \u200b\u200ba couple of kilometers, for which a high-bandwidth cable is purchased.

What is WAN

With the help of this type of connection, an external network is created, which is a large number of groups, users regardless of their location. The main difference is that the previous format is intended for the internal connection of several PCs, while this type of connection is external.

There are many global networks, but the most famous and commonly used is the World Wide Web. It is she who is preferred by the majority of clients at different distances, since she is not limited geographically, it is created through telephone wires and more modern technologies.

You probably saw a WAN connector when buying and installing a router - a cable from a provider is connected to it. The joint work of both ports is that one of them transmits a signal, which is then distributed to devices connected to the router.

Technical highlights

The main differences between these formats:

• The first type helps to create an internal network, WAN is used to globally connect users.
• The local group has a limit on the number of clients, as well as the territory, the global group does not.
• The ports have different data transfer protocols - Ethernet and 802.11 for local and PPP, HDLC, Frame Relay for external.

The user needs to know what is the difference between these ports when connecting a home router for the Internet. Remember that a LAN socket is needed to connect computers if there are several of them, and the WAN allows you to receive a signal from the provider.

For inexperienced users, creating a local area network at home is quite problematic, but only the right combination of devices will allow you to enjoy all the advantages of WLAN, LAN and Powerline, while avoiding their disadvantages.

A well-built local home network will allow you to broadcast a movie from a laptop or PC to a TV, simultaneously use a media player in the next room and use mobile devices by your family members. To achieve this goal, it is necessary to achieve uninterrupted wireless network, stable data transfer rate in a bundle of Powerline adapters, or hide the network cable so that no one remembers about it. Let's get down to creating a fast and well-configured home network.

Optimal speed methods

The creation of the ideal home network is accompanied by a combination of 3 technologies: WLAN, LAN and Powerlineusing the strengths of each. Using modern wi-fi equipment in the network, you can get a high and stable wireless connection speed and eliminate the use of wires.

HOME NETWORK ORGANIZATION

Wireless network

The optimal location and configuration of the wi-fi router will increase the speed of all devices. New supported models can be used as fast radio bridges.

Optimal location of the wi-fi router. Position your WLAN enabled wireless router so that it sits clearly in the middle between all the devices you want to wirelessly connect. Now you can test the network coverage in the apartment using the Ekahau Heat Mapper utility installed on your PC or laptop. First, walk around the area you want to measure and figure out how to plot the plan onto the Heat Mapper mesh. Go to your starting point and start mapping your coverage. After each step, mark your location on the grid. When you are finished drawing the map, right-click. On the grid, hover over the router icon to view the WLAN signal distribution. If you see areas of yellow and orange, then you need to amplify the signal using my recommendations. It is worth following the rule: the higher the router is in the room and the farther it is from the walls, the less interference occurs during signal transmission. Tall cabinets and shelves are perfect for installation.

Organization of a wired network (LAN)

Switch connection.Gigabit Ethernet (1000 Mbps) will be the best solution for the home, but 4 wi-fi ports may not be enough. To add ports, use a switch (for example, D-Link DGS-1005D) to unload the router, but keep in mind that the connection between the router and the switch takes up one port on each device. GIGABIT ETHERNET must be connected to devices that need to quickly communicate with each other, such as a computer and a home server. The Uplink connection to the router and the Internet can be made via the Powerline network or the slower but easy-to-install flat cable.

What is an Uplink connection is a connection in a network of computers, from a device or small local area network to a large local area network.

Local area network (LAN) structure. When using two switches, there are 2 options:

• connect both devices directly to the router
• to cover long distances, connect one switch to the other, as there can be up to 100 meters of cable between the two switches.

Connecting an RJ-45 socket... To connect the cable, you may need wall-mount sockets with RJ-45 LAN connectors, let's look at the connection method.

The pins are labeled 1 through 8. Connect them to the color-coded wires as follows:

• 1 - orange-white, 2 - orange, 3 - green-white, 4 - blue.
• 5 - blue-white, 6 - green, 7 - brown-white, 8 - brown.

The terminals are provided with sharp edges, into which it is best to insert the cable using a pressure tool until the edges cut through the insulation, make contact and cut the end of the cable. Check the connection before installing the outlet.

HDMI cable connection

How to lengthen HDMI? Unlike LAN cables, HDMI cables are recommended to be no longer than 15 meters. The way out of the situation will be an extension cable - for example, which transmits an HDMI signal via a LAN cable up to 30 meters long. However, for high data rates, two of these cables are required. Connect the adapter labeled "Sender" to the HDMI port of the source device (such as a laptop or Blu-ray player). Connect the Ethernet connectors "DDC" and "TMDS" of the adapter to the ports of the same name on the adapter "Receiver" and insert it into the required device.

Transmit HDMI signal wirelessly. The HDMI Extender helps you position your devices (Blu-ray Disc Player, TV Receiver, and Game Console) near your TV or projector and allows you to place them in a convenient location. This unit transmits Full HD picture and surround sound by radio communication to a TV receiver. At the same time, it receives signals from infrared remote controls and directs them to source devices. Audio and video devices can be located up to 30 meters away and even in another room.

Today many users search the Internet for such information: LAN - what is it and why is it needed? Of course, on the world wide web you can find a very simple and short definition. It sounds like this: LAN is a local area network. That's all.

But this decryption gives absolutely nothing, especially if a novice user has to deal with it. For some reason, many authors of articles on the Internet believe that if you leave out a lot of incomprehensible phrases, then people will immediately read the entire article and consider the site on which it is posted as very authoritative and important.

In fact, this approach only complicates the whole situation. Therefore, we will try to explain what LAN is in simple language, so that even a child can understand it.

If you still do not understand something, write about it in the comments, we will be happy to answer all your questions. So let's start with a simple theory.

Theoretical page

So, LAN stands for Local Area Network. This really translates to. To put it simply, LAN is a series of interconnected computers and other devices that can connect to the network. And they are connected with each other either with the help of cables or with the help. In Figure 1, you can see a pretty vivid example of a local network.

Figure: 1. LAN example

As you can see, here the main element of the network is a router that is connected to the Internet (WAN). Remember this abbreviation, we will talk about it later.

For now, let's take a look at the diagram shown above. On it, numbers indicate network segments, specifically:

3. DVD player connected to the router with a cable. To do this, the router has special LAN connectors, which are usually marked in yellow. In most cases, there are 4 such connectors.

As we said above, a LAN connector is used to connect to a router via a cable. We can see this in Figure 3.

Figure: 3. Router - rear view

As you can see, everything is standard in this model - 4 LAN connectors, but there is one more and it already differs in blue. Actually, this is WAN (remember, we said that this concept needs to be remembered?). To more accurately understand what a LAN is, you can compare it with this very WAN.

By the way: Both LAN and WAN are connected via the most common cable with an RJ45 tip, shown in Figure 4. Above, we said that, for example, segment 3 in Figure 1, that is, a DVD player, connects to a router with using a cable. This cable is a regular twisted pair cable with RJ45 lugs on both sides. It's that simple!

Figure: 4. RJ45 tip

Comparing LAN and WAN

Let's start with what a WAN is. Again, to put it simply, this is the Internet. That is, it is the same network, but not local, like LAN, but global. It includes all devices and millions of local networks. WAN stands for Wide Area Network. On this very network, each user can access the resources of another computer or other device that can be connected to the network.

By the way: This information is stored on servers. To put it simply, this is a huge number of large-capacity disks assembled into one large apparatus that can provide this information.

Figure: 5. Example of a working server

Differences between LAN and WAN:

1. Dimensions. Typically, a local network covers small areas, for example, an apartment or some kind of industrial premises. But the global network spreads over the entire surface of the globe.
2. The number of users. Of course, many more people can connect to the global network than to the local one. Much more powerful equipment is used there, and in general a lot of people are usually connected. On this and the calculation.
3. Service type. Local networks have their own services, such as a file access service, a printer service, and so on, in general, everything that is needed for a small network. But in the global network, for example, a routing service is used (determining the route of information along the network nodes) and much more that is necessary to work in large networks.

As for the distance or area that these two types of networks can cover, we have already said above that the global network extends over the entire surface of the globe. Accordingly, it can work on distant spacecraft, if they are connected to any device within this network.

So, it is interesting that local networks can also reach quite large sizes. The largest such network to date had devices that were located 14,000 km apart. These were space stations and orbital centers. Although usually a local area network covers the same offices, houses, businesses or a small group of buildings.

Hello dear readers! This article is the first in the "Smart Home" heading. The task of the new column is to describe in simple words the basics of interaction with modern devices in our home.

For example, take modern TVs. Nowadays, it is already quite difficult to find a TV without Smart TV technology, and even more difficult, it is almost impossible to find a TV without a LAN connector or a wi-fi module.

This is where the question arises: why do we need all these bells and whistles? Since you have to spend money on them, so maybe it is worth learning the benefits of these innovations at the same time? The answer is simple: "Of course it is!"

Obviously, the LAN connector is used so that you can bring the TV into your home network using a network cable. This is done so that you can use network technologies, it does not matter with access to the Internet or without access.

So, let's briefly talk about the networking technologies used in TVs. There are two of them. These are Smart TV and DLNA.

Smart TV technology

This technology allows you to connect the TV to the Internet, for example, through the LAN connector, which we are talking about in the article. After connecting, the TV can play streaming video from the Internet, and there are also a number of additional features, such as installing applications that will expand the functionality of the TV.

Here's a simple example. Connect your TV to the Internet, install an application for watching movies and TV series. Alternatively - Amediateka (this is an online cinema). After that, you have access to a huge number of different films and TV shows in a very decent quality. You can forget about cinemas :)

DLNA technology

If the TV is older and does not support Smart TV technology, it still most likely has a LAN connector. I will explain why you need it.

In addition to Internet access, you can also configure access to your home network. Let's say you have a media server at home. I mean a computer that stores a lot of multimedia information (movies, music). By correctly setting up the home network, we can make sure that the TV can access the folders with the content of this media server.

Such a procedure will help us watch movies and music downloaded from the Internet through an intermediary (media server) on TV.

Obviously, to connect the TV to the network, we need a LAN connector. That is, even if the TV cannot be connected to the Internet, the presence of a network connector is still justified.

Conclusion

In the next articles we will talk in more detail about Smart TV technology, DLNA, and setting up a home network and a media server. Subscribe to site updates so as not to miss new interesting articles.

I also have a small request for you. Please write in the comments if you will be interested in reading articles about the basics of organizing a smart home system in your home. Perhaps the audience of this site is not so interested in technologies that are at the forefront of progress. Or are they interesting? ;)

Thank you for your attention and see you soon!

If you want to know what WAN is, or how WAN differs from LAN, then you've come to the address. Now we will try to figure out what these technologies, connectors, connections are, what they are for and what is the difference.

Hello! Perhaps the question in the title of the article seemed a little strange to you, but still there is a semantic load in it. Surprisingly, such questions bothered some of my readers and met me several times in various forums. Progress and competition in information technology a few years ago laid the foundation for the production of smart TVs. Many modern models (depending on the line) have a LAN connector on their board, but some consumers after buying a TV do not get what they expected from this network connector. So why is the LAN connector on the TV?

Depending on the answers to these questions, we will determine the cause of the problem.

The computer does not see the connected LAN cable

In this case, when the network cable is connected, no messages and activity from the latter appear. The network connections icon is crossed out in red, and if you hover over it, the message "No connection" appears. Everything looks exactly the same as if the cable was not connected at all.

In the window Configuring the interface for an Ethernet connection in field Use connectorspecify one of the LAN ports (LAN1 in our example) that will act as the WAN port.

USB - (from the English Universal Serial Bus - "u-es-bi") - The Universal Serial Bus is a serial data transfer interface for medium-speed and low-speed peripheral devices in computing.

The USB tree block diagram is symbolized by geometric shapes (large circle, small circle, triangle and square) located at its ends.

Four-wire USB cable (4 copper conductors). The cable uses two twisted-pair conductors for receiving and transmitting data, and two power conductors. Thanks to this, peripheral devices can be connected without their own power supply.

USB has 3 operating modes:

To check the health of the network card, you need to go to the "Device Manager" of your computer. To do this, follow the steps below:
You may call it differently. If there is an exclamation mark next to it, then it is not working properly. Try reinstalling the driver. You just need to download from the manufacturer's website and start the installation manually, and not through the task manager. It may also be that the LAN connector does not work on the router.

Important: if your laptop's LAN port does not work, do not jump to conclusions. - a lot: from incorrectly configured software and a router to bending the cable or damage to the network card.

Connecting without internet access (yellow triangle with exclamation mark)

This problem looks like this:

Connection status "Without access to the Internet" as if speaks for itself, the Internet does not work. But, there is a connection to the router. Typically, this error can appear due to the router. When there is no internet connection. There is a detailed article on this issue.

And when installing it, each of us dealt with LAN and WAN connectors. They are intended for different purposes but are used together, which can lead to confusion. Let's see what they are, what is the difference between them.

An Internet cable is connected via the WAN jack, local devices are connected via LAN

What is LAN

This type of connection will allow you to combine a number of computers located at a short distance from each other in a local environment.

When buying a router, you may notice four identical jacks of the same type on the back of the router. All of them are created for the purpose of connecting several PCs in one access point.

A LAN port is needed if you want to create a group to connect all equipment inside the house to the Internet. Thus, it is possible to create a network that will cover an area of \u200b\u200ba couple of kilometers, for which a high-bandwidth cable is purchased.

What is WAN

With the help of this type of connection, an external network is created, which is a large number of groups, users regardless of their location. The main difference is that the previous format is intended for the internal connection of several PCs, while this type of connection is external.

There are many global networks, but the most famous and commonly used is the World Wide Web. It is she who is preferred by the majority of clients at different distances, since she is not limited geographically, it is created through telephone wires and more modern technologies.

I decided to make a short entry in which to answer one interesting question: what is the LAN connector on the TV for? Whether it's Samsung, LG, Toshiba, Sony, or some other manufacturer. Indeed, now in almost every TV you can find a regular, network Ethernet (LAN) connector. Everyone is used to the fact that the Internet is connected through this connector on the computer.

If a TV with Smart TV function, then in principle it is clear why you need a LAN connector - to connect the TV to the Internet. If, for example, there is no built-in Wi-Fi, whatever, and you need to buy an external Wi-Fi receiver. And as practice shows, the cable is always more reliable. If the router is not far from the TV, then you can connect via cable.

But, if there is no Smart TV, what is a LAN connector for then? Which looks something like this:

And he is needed mainly for work. You can look at the characteristics of your model, most likely, DLNA support is indicated there. Perhaps an Ethernet connection is required for some other function, or a software update. It all depends on the manufacturer.

But mainly, this is watching movies, photos and listening to music via DLNA. You can read more about this technology at the link above. How it works: you have a router to which a computer is connected, or a laptop. You also connect a TV to the router (via network cable), and after a simple setup, you can watch movies and photos that are on your computer on the TV screen. You can also connect the computer to the TV directly, without a router.

And you can connect. It's even more interesting this way. If only a movie can be launched via DLNA, or a photo can be opened, then absolutely everything will be displayed on the TV via HDMI: desktop, folders, etc. Just like on a monitor.