How to connect a telephone socket: connection diagram and installation rules. Simple communication between two phones How to connect 2 phones to one line

Despite the rapid decline in the popularity of landline telephones, there are not so many people who are ready to abandon them outright. Admit it, it happens that it is sometimes extremely difficult or even impossible to do without traditional communication.

To connect the device to the switching network, you need a low-current node, the installation of which you can handle with your own hands. We will tell you in detail how to connect telephone socket without calling the master.

There is absolutely nothing complicated in the schemes and methods, and the proposed by us will help to deal with the issue useful information, as well as photo and video materials.

Constructions landline telephones every year they are modified and improved. AND modern devices significantly surpass their predecessors, distinguishing themselves favorably against the background of their high reliability and ease of use.

To ensure the smooth functioning of the device, two conditions are necessary:

1. Availability of a valid communication line from the PBX.
2. Possibility of electrical connection of a stationary device to this line.

The only thing that does not change in the field of telephony is the principle of operation of fixed telephones. However, there are significant changes in designs and connection methods.

Old and new options for telephone switching are presented in the photo collection:

Image gallery

Of the tools for carrying out work, it is necessary to prepare:

• building level;
• crossover knife;
• voltmeter;
• screwdriver;
• nippers;
• lead pencil;
• protective gloves;
• Double-sided tape;
• punch (if mounting a new point).

When choosing a screwdriver, they are guided by the type of surface and the dimensions of the screws used for fastening. To minimize the likelihood of defeat electric shock, it is better to perform all manipulations with a screwdriver, the handle of which is insulated.

Having outlined the installation point of the connection point, using the building level, they correct the horizontal and vertical position of its position

To connect an outlet hidden type, you must first make a hole in the wall for its installation -. This can be done using a perforator equipped with a special crown with a diameter of 60-70 mm.

In the absence of such, work can be done with an ordinary hammer and chisel. But manual labor will take much more time and effort. Then, to the hole made, it is necessary to grind a channel for laying the telephone cable.

There are certain nuances when installing a socket in.

Stage # 2: Stripping the ends of the veins

Before proceeding with the melting of the cores, it is necessary to strip the ends of the wires, removing the outer layer. Expose the outermost 4 cm of the wires sufficiently.

When stripping a telephone cable, remember that it is very vulnerable to damage. Broken wires will only lead to equipment malfunction. Therefore, it is important to use specialized.

Since it is not always possible to accurately cut the first time, experienced craftsmen recommend making a certain margin along its length when laying the cable. The excess wire can then be hidden under the cover of the device.

Stripping of the protective insulation from the ends of the cable should be done with extreme care, using a cross cutter, a sharpened blade or side cutters.

The task of the master is to strip the ends of the wires from the braid so that in their bare form they are intact and devoid of any defects.

Stage # 3: Connecting the outlet wires

The stripped wires with the strands apart are connected to the connectors of the box itself, focusing on the designations indicated on the front panel of the indoor unit. At closed way installation for the convenience of connecting the wires are made protruding beyond the wall plane by 50-80 mm.

To observe the polarity when connecting the wires, follow the rule: red insulation on the line with a "-" sign, and green braid with a "+"

If the rule is not followed, taking into account the polarity, there is a great risk that the telephone will malfunction from time to time during operation.

At this stage of work, a voltmeter is required. With its help, you need to check the readiness of the communication line. The line voltage should be between 40-60 volts.

The supplied cable cores are applied to the clamp and tightened tightly with special screws, ensuring a secure fixation. The shape of the grooves to which the conductors are attached facilitates the installation process. It is not necessary to wrap the joints with electrical tape.

When connecting devices with a four-pin male design, only the two center pins are used.

Performing open mounting, at the final stage, it remains only to close the housing cover with a latch and fix it with screws. The finished socket is attached to the wall or floor, "planting" it on double-sided tape.

With a closed installation method, making sure that the wires do not intertwine in the socket box, according to the applied markings, the indoor unit is mounted into the wall. After giving the block the desired position, the structure is fixed with spacer screws and self-tapping screws.

At the final stage, it remains only to eliminate the gaps between the socket and the wall, covering it with plaster mortar, and also to close up the channels with the laid telephone cable.

After the gypsum has reached the desired strength, the protective bezel is reinstalled and the bezel is attached. In devices of the modern design, the protective edging snaps into indoor unit and the bezel is secured by screwing in the screws.

There is nothing difficult in connecting a telephone socket. The only thing is that you should not save money by purchasing equipment of a low price range. It does not always comply with the standards and can fail even at the connection stage.

Share your personal experience of connecting a telephone socket, leave comments on the article and ask questions. The contact form is located below.

Having two telephones, a coil of a two-core wire of sufficient length and a small number of radio components, you can organize your own telephone line for two subscribers. For example, to arrange a connection between two neighboring apartments by throwing a wire between the windows, or between neighboring country houses, between the house and the gazebo. First of all, let's recall from the school physics course how the telephone works. In the simplest case, these are two telephone capsules connected by a two-wire line.

When one speaks in front of one capsule, its magnetic membrane moves from the sound waves and induces some alternating voltage in the coil, which is fed through the wires to the coil of the second capsule and sets its membrane in motion. It turns out that the membrane of the second capsule moves in the same way as the first, creating sound waves that can be heard. But theoretically, such a connection is ineffective, too large losses in the wires and low efficiency of the capsule.

Therefore, a real telephone has a carbon microphone, the impedance of which changes in time with speech. In addition, some DC voltage is applied to the line. As a result, it turns out that a carbon microphone connected to the line, changing its resistance in time with speech, causes a change in the current strength in the line.

Thus, in the line it turns out alternating current, which changes in time with the speech. This current feeds the capsule of another telephone and emits sound waves, quite distinct and loud.

A schematic diagram of the simplest telephone line is shown in the figure. Two electronic telephones are used - handsets with push-button dialers, but you can take simple
disk devices. They are connected by two wires. A constant voltage of 60-80V is supplied to these wires through the resistance R1. When the tubes of both TA are hung between these wires, there is a voltage of 60-80V, since in this state internal resistance TA are very high.

Suppose we pick up the receiver TA2, while its hook switch connects its talking unit to the line and the resistance of TA2 decreases sharply, so much that the voltage in the line drops to 8-10V (the voltage drops because from the resistor R1 and the resistance of the talking unit TA it turns out voltage divider, and the line turns out to be connected just through this divider).

If you start talking in front of the TA2 microphone, the resistance of its spoken node begins to change in time with the speech, which means that the total resistance of TA2 also changes. At the same time, R1 remains unchanged and the voltage in the line changes in time with speech. The TA1 telephone set is also connected to this line and if you pick up its receiver you can hear what is being said in front of the TA2 microphone. If the TA1 subscriber answers, his voice will be heard by the TA2 subscriber. This way you can talk to each other.

To call a subscriber, the telephone set has a bell or a buzzer, it is connected to the line whenever the TA tube is hung up and reacts to any significant voltage drop in the line. If you pick up the handset TA2, then the TA1 call will "ring" once, because there was one voltage drop in the line, hang up - TA1 will "ring" again.

As part of the TA there is a dialer, push-button or disk, it does not matter, in any case, it serves to create voltage drops in the line, these drops are received by the telephone exchange, counting them and thus determining the subscriber's number. In our case, there is no telephone exchange, but the dialer can be used to call a subscriber. If you dial the number "9", the TA creates nine voltage drops in the line, which means that the second TA will "ring" not once, but nine times, if the number "0" - ten times.

Thus, in order for you to call your friend on TA1 from the TA2 phone, you need to pick up the TA2 handset and dial "O" (or another number) several times in a row. As a result, TA1 will ring, your friend will hear the call, and after picking up the phone he will be able to talk to you. You can also call TA2 from the TA1 device in the same way.

The constant voltage for powering the line is obtained from the 220V mains voltage using a T1 transformer and a VD1-VD4 diode rectifier. The ripple of the rectified voltage is smoothed out by the capacitor C1. Transformer T1 can be made from a small-sized transformer from a mains source to power toys or portable equipment. It is necessary to disassemble the source body and connect the transformer with an extension cord to the network to measure the voltage on its secondary winding. Suppose the voltmeter showed 6V.

We need 50 V. Now we disconnect the transformer from the mains, disassemble its lamellar core and unwind the secondary winding (not mains winding), carefully counting its turns. Let's say we counted 120 turns, this one despite the fact that the output voltage was 6V. Now we calculate how many turns a given transformer has for 1V: 120/6 = 20, a total of 20 turns. We need 50 V, which means that the secondary winding must contain 20x50 = 1000 turns. We take a thin winding wire, for example PEV 0.06 or PEV 0.09, and carefully wind 1000 turns with this wire instead of the old secondary winding.

Then we assemble the transformer core. You can take a ready-made transformer that produces at least 36V and at most 50V.
D226 diodes can be replaced with any rectifier, for example, D7 or modern KD102, KD103, KD105, KD226, KD209. Capacitor C1 for a voltage of at least 100V and a capacity of at least 160 μF. Resistor R1 with resistance from 1 kOhm to 1.8 kOhm for a power of at least 2 W. S1 toggle switch of any type.

Structurally, the power supply can be connected to the line anywhere, near TA2, near TA1, or even in the middle. For example, if TA2 is in an electrified room, and TA1 is in a garden gazebo, it is clear that the source is connected near TA2.

When installing, do not confuse the polarity of the connection of the capacitor C1 and the diodes. D226 diodes have a graphic image diode, along the body, so that you can understand the purpose of the terminals.

Hello, dear lovers of experiments and experiments with their own hands!

We have already touched on the topic of telephone communication on the pages of a blog about science and technology with our own hands. Then it was about a phone made of plastic cups. Unfortunately, such a phone very well demonstrates some laws of acoustics, but in practice it can only be applied in fairly ideal conditions - the phone's thread should be taut and should not touch any obstacles. And the length of the thread is limited. An ordinary wired telephone is another matter. There is no doubt about its applicability. Despite the proliferation mobile communications, it will not soon be ousted from apartments and offices. We will talk about it, and at the same time we will build our own simplest telephone network, devoid of the above disadvantages.

Did you know that telephone communication dates back to the 19th century, and since then the fundamental design of the telephone has remained practically unchanged? This is indeed the case. Of course, the details of the telephone have changed - a modern telephone set includes electronic components that simply did not exist at the time of invention. In telephone networks, automatic telephone exchanges function, which switch subscribers among themselves. Various telephone services have appeared. However, the purpose of the telephone set of any scheme has remained unchanged since its invention by Alexander Bell in 1876 - converting sound into an electrical signal and transmitting it through a communication line to the desired subscriber and converting it back to sound signal... And in this classic telephone communication there is no equal.

To demonstrate this claim, let's compare the aforementioned plastic cup phone to a regular telephone network. We have already spoken about the disadvantages of the first one - this is a short range, the absence of obstacles in the path of the communication line, ensuring the tension of the thread. In addition, let's estimate the speed of sound propagation in the first and second types of communication. So, the speed of propagation of a sound wave in iron is about 5000 meters per second. Even if we found a way to eliminate the attenuation of the sound wave, the sound, say, from Moscow to Vladivostok would go 30 minutes! I don't know about you, but I would quickly get tired of such a phone - the radio signal reaches Mars faster! Another thing is the speed of propagation of an electrical impulse - 300,000 kilometers per second. The best mediator for sound transmission can not be found. You just need to come up with a way to convert a sound wave into an electrical signal and vice versa. And such a method was found by Alexander Bell.

In his telephone, the sound signal was converted into electrical impulses, which, through the wires, reached the opposite device and there they were converted back into a sound signal. Everything turned out to be as simple as ingenious! Of course, in the first telephone network there were no telephone exchanges, no dialers, or other modern telephone charms. There were only two telephones connected by an electric wire. I suggest you check the possibility of the existence of such a telephone network. Moreover, such telephone connection it is quite possible to use it in practice, for example, to telephonize a home workshop. And if you hold such a phone to the place where your child is playing, then it will remain a key link in many games for a long time.

So, we need:

• two telephones;
• electrical wire.
• a source direct current.
• telephone patch cord.

As for the electric wire - you don't have to limit yourself here - any length of telephone wire can be used for your experimental or household needs. The type of wire can also be almost any. I used 30 meters of twisted pair in my experiments.

As for the direct current source, the following can be said. In the telephone network, the line voltage at rest (on-hook) is 60 volts. But for our experiments, the voltage from two batteries of the "Krona" type will be quite enough. You can also use a 12-20 volt power supply.

Take the patch cord and cut it in half.

We clean the ends. The veins of a patch cord are often very thin, it can be inconvenient to simply peel them off with a knife. You can burn them.

In the case of using batteries, we connect them in series. It is convenient to use clip-contacts, but you can do without them.

We include our current source in the circuit in series, that is, in the break of one of the wires.

Do not forget to isolate contacts.

Everything, you can use it! The only one significant disadvantage such a scheme is the inability to call a subscriber. To provide such a possibility, it is necessary either to provide an AC voltage supply to the line, as is done in urban networks, or to conduct an additional line to provide a sound or light call.

Sooner or later, almost every user of a smartphone or tablet with Android OS needs to transfer files from Android to Android? However, not all "users" can connect two modern gadgets and create a reliable data transmission channel.

Therefore, in this article, we will take a closer look at the current issue of how to connect an android to an android, and present the four most common and simple in functionality ways to solve this problem.

How to connect an android phone to an android via bluetooth?

1. Connect two devices together with operating system"Android" is possible using "Bluetooth" technology.

To transfer files from android to android via "Bluetooth" you need:

Find in the "File Manager" or "File Directory" the very file that you need to transfer to another Android device;

Click on the selected file and select "Send" among the proposed actions;

You will see a window with a list of sending methods of this file: it is necessary to select, respectively, "Bluetooth";

Confirm the connection to the device (if required) by entering the security key and wait until the transfer of the file (s) is completed.

How to connect android to android via wifi?

1. You can also use a wifi connection to connect android devices to each other.

Of course, the wifi module alone will not work: to exchange data, you will need to download a specialized software(for example, "Fast File Transfer").

However, connecting android to android via wifi has a number of advantages, including:

• - data transfer rate at wifi connection much higher than with using bluetooth adapter;
• - file exchange can be organized between devices with different operating systems;
• - implemented the ability to use "QR codes".

To connect two android devices via wifi, you need to download and install the appropriate application, then launch it and follow these steps:

In the first step, you will be prompted to enter a "Device name" - for example "Proverka" - and a password for wifi installations connections;

In the list possible ways file transfer choose "Fast File Transfer";

Now on the phone / smartphone, which is the “receiving” party, and in the search for available access points, select the connection whose name you specified in the first step - “Proverka”, and connect by entering the password;

After a successful connection, the address will be indicated at the bottom of the application window, which must be entered in address bar browser;

After going to this address, the browser will automatically start downloading the file you selected.

How else can you connect an android phone to an android?

In addition, you can use another great application called "Filedrop".

In this case, to connect the two "androids" follow the same initial steps: download the application, install the software (on all devices) and run. When you start the application for the first time, you will need to grant access to files, folders, etc.: confirm permission and just drag desired file to the icon of the device where you want to transfer it (smartphone, tablet or computer).

How to connect android to android via internet?

To create and share on a smartphone / tablet, you will need to download and install the ES Explorer file manager. Software setup consists of the following steps:

Run the program and select the "Network" section in the menu;

A window will appear with the name of the connected network - click the "Enable" button;

The next step will indicate the address that you need to remember.

It will be needed to synchronize with devices (for example, "199.199.199.199:2233");

Click "Create" - "FTP"

Now enter the address ("199.199.199.199:2233") in the "Server" line before the "colon" sign, i.e. 199.199.199.199;

In the line "Port" write the numbers after the colon: 2233;

Click "OK", open the created (of the same name with the address) folder and select the actions that you need (copy / move / delete, etc.).

It should be noted that this application is free and also includes features such as:

• - support cloud storage (« Google drive"," OneDrive "," Dropbox "," Box.net "," Sugarsync "and others);
• - integrated "RAR" and "ZIP" archivers;
• - support not only "FTP", but also "FTPS", "SFTP" and "WebDAV".

It is possible to list all the possible functionality for a long time, so this application is one of the best solutions to connect Android devices to Android.

A situation often arises when the question becomes relevant: "How to connect two phones to each other?" For example, you need to copy large file with a video or program from one phone to another. Or move a large amount of music and photos. In addition to the traditional sending of files via Bluetooth and Wi-Fi, there are several other methods. This article will show you how to connect two smartphones with a USB cable.

Can smartphones be connected with a cable?

In order to connect two phones with a cable, you need to have a micro-USB to USB cable and a USB-female adapter for "OTG" in stock. For starters, it's worth noting that you can only connect phones that support the One-touch-Go (OTG) function. Thanks to this technology, you can connect to your smartphone any peripheral device including the second phone.

USB adapters can be marked "master" or "slave", that is, they can be master and slave. If there is an adapter marked "master", then the phone with this adapter will be the main one, and the second phone will be displayed on its screen as a removable medium. If the adapter is marked "slave", then the situation will be mirrored.

Everything modern smartphones support the "OTG" technology. It was designed to connect keyboards, webcams, removable media, printers, mice and other peripherals to Android devices.

To connect two phones, you first need to connect a USB-female adapter to one phone, and a micro-USB cable to the second phone. After the phones have identified the cable and adapter, you can safely connect them together.

When connecting two phones, there is no need to use additional software. For this, the interface of a standard smartphone file manager is sufficient. The content of the slave telephone is then displayed in file manager main phone as the contents of removable media. After connecting the phones with a cable, you can copy files at high speed and not worry about a possible disconnection or loss of data, as is the case with data transmission via the "Bluetooth" channel.

How to connect a smartphone to a tablet?

Today, tablets are no less popular than smartphones. And therefore, the question of how to connect a tablet to a phone with a USB cable arises quite often. Moreover, the majority modern users often both of these devices are available. And sometimes it is very necessary to quickly copy a large amount of information from one of them to another.

As in the situation with two phones, a micro-USB to USB cable and a USB-female adapter for the "OTG" function will come to our aid. But some tablets already have a built-in USB interface. In such a situation, the task is simplified: you only need a micro-USB to USB cable to connect. Just remember that the built-in USB-female is often labeled "master" by the manufacturer, and take this into account when connecting.

Once you know how to connect your phone and tablet via a USB cable, transferring information between the two devices becomes even faster and more reliable. Of course in the world wireless technologies this feature is not always necessary. But situations happen differently. For example, one of the devices is broken Wi-Fi adapter... Then data transfer via the USB interface will be the only and no less reliable way.