Connection diagram for a video intercom with an electromechanical lock

Any type of electronic lock can be connected to a regular intercom or video intercom, and the choice is determined by the design of the door and the functionality of each design.

The off state of the electromagnetic lock is held by a relay, which receives a corresponding signal for some holding time from the calling panel.

Monitor Modern video intercoms use convenient, flat panels. Intercom and gate lock. Which wires to lay and where.

Video intercom connection diagram If it is lost, the calling panel, camera, and other parts of the technical solution simply stop working.

Thus, some models of electric locks for intercoms have two modes - day and night.

To do this, a Card reader or a code reader from an electronic key is installed on the outside of the door jamb. The list and quantity of materials used depends on the method of laying cables, the distance and placement of actuators and other equipment.

Additional security measures. Ideally, the power cable, lock control and data transmission from the calling panel should be routed into one socket box on top of which the device will be installed.

This lock has the form of a powerful electric magnet, which receives power from a separate source.

Connection and joint operation of an intercom with an electromechanical lock, Observer Store

Intercom design

In the simplest version, you can see the visitor from the monitor and talk to him, but to let him through, you will have to go to the gate. Home intercom system Video intercoms are very popular among owners of private houses. This should not be done under any circumstances, since the powerful current pulse that occurs when the electromagnet is triggered will sooner or later completely disable the intercom. Modern devices allow the operation of a calling panel with an electric lock at a distance of up to 50 meters from the subscriber terminal.

It is powered by an electrical circuit and transmits video and audio signals to the video intercom monitor using a coaxial cable. Currently, the market is saturated with a significant number of devices that provide remote access to premises.

Connection and adjustment The intercom system blocks should be connected in accordance with the installation diagram.

This unit must be installed in the entrance panel.

You can choose a specific type based on the design of the door and its technical capabilities.

This is ideal for a public facility for people to get out.

Installation It is necessary to select places to connect the video intercom and calling panel and install them. Color intercom with electric lock

Main types and manufacturers

Based on their functionality, intercom systems can be divided into two main types:

audio intercoms;
video intercoms.

Audio intercoms allow you to identify a visitor by voice. Owners of video intercoms can make identification both by voice and visually. In addition, many intercom systems with video cameras can perform the function of a video recorder, recording video information on internal or external media. Oddly enough, the connection diagrams of the listed access control systems differ only slightly. The main difference in installing video intercoms is the need to transmit a video signal. To do this, you need to lay two additional wires between the calling device and the intercom.

It should be noted that intercom manufacturers offer devices in which communication between individual elements of the intercom system is carried out via radio or via the Internet. Such systems do not require laying long wires, but additional communication modules significantly increase the cost of the access control system.

Connecting an electronic lock to an intercom

In digital intercoms, the alarm bell is transmitted via a two-wire line. Power supply for video intercom Modern systems implement three types of power distribution at once: with one power cable, with a conversion unit inside the intercom or internal monitor; with one external power supply located indoors; with a separate conversion unit, to which a calling panel or an electromagnetic, electromechanical lock is connected. At this moment, the controller remembers the key number. This is ideal for a public facility for people to get out. Laying wires when installing a video intercom If the individual components of the system provide for inset installation, appropriate recesses in the walls, cutouts in the door frame and other sufficiently sized spaces are knocked out for them. This wire has several pairs of conductors with one core. The electromagnetic lock will unlock when the power is turned off. The operating principle of an electromechanical lock is based on the movement of a bolt, which keeps the door locked. Color models are equipped with a screen with a diagonal size of 10 cm and a handset or speakerphone button for answering calls.

The specificity of this type of lock is that it moves the bolt that holds the door in the closed position. It remains closed when the power is turned off.

Selection of equipment for the kit

Nowadays, the most common connection is a digital intercom with an electromagnetic lock. The BUZ has small dimensions, and many installers place the energy storage device inside the lock. You should not buy a category 5 cable designed for high-frequency signals. An electromechanical lock has a manual opening button, so intruders can enter unnoticed by leaning over the gate or reaching for the button through cracks in the door. Electromagnetic lock An electromagnetic lock is designed to close a door or gate and keeps it closed by means of a powerful electromagnetic board that attracts a steel plate, installed on a door or gate.

Lock The choice of lock depends on the desired functionality. The KSPV cable is well suited for audio intercoms.

The answer to the question of how to connect a video intercom must necessarily contain information about a convenient location for installing the calling panel. The only thing you need to remember is the polarity of the intercom calling panel, electric lock and apartment handset. To avoid mistakes, mark the colors of the conductors and their purpose on the drawing. Do-it-yourself video intercom installation using an example

A few tips during installation

In conclusion, I would like to note that there is a lot of information on the Internet on how to connect an intercom yourself. Reading these articles, one gets the impression that installing such a system is easy and simple. However, as in any work, there are nuances when installing each element. Experienced masters give us a number of good advice on this matter, let's look at them.

Do not tighten the screws of the calling panel before all settings have been made, do not do double work.
Connect the call panel to the electromechanical lock with a two-core cable.
Do not lay electrical wiring near powerful power cables, electrical appliances designed for high voltage, etc. This may cause problems with the operation of electronic devices.
During the work, strictly follow the instructions; if there is a need to deviate from them, consult with specialists.

Why is it necessary to install an intercom in a private house?

Electromechanical mechanism for a gate Selecting a lock for a gate and completing the device There are certain criteria that a lock controlled by electric current must meet.

If during the daytime the lock can be easily opened with a button from the subscriber unit or with a key from the outside, then at night additional bolts are installed that completely block the possibility of opening the lock. Additional security measures.

Connecting wires to the video intercom is carried out in accordance with the connection diagram.

They provide significant gasket length; digital devices - use twisted pair cables for transmission. Installing mortise locks is quite a complex matter, requiring certain skills and experience with tools, so it is better to entrust this procedure to specialists.

Types of electronic locks

The negative wire of the power supply can be connected directly to the lock, and its positive wire is connected through the relay contacts. After this delay time has expired, the electromagnetic relay is activated again and the lock goes into the closed state.

Wireless 3G CCTV cameras operate on the same principle as regular video calls, so you must always be within the coverage area. This type of lock has the following advantages: Low price; Ease of installation; Can be installed on most types of doors.

Why is it necessary to install an intercom in a private house?

The final stage is sealing. This type of lock has the following advantages: Low price; Ease of installation; Can be installed on most types of doors. It should be positioned so that the panel being pulled is on the moving side of the door, and the lock is on the fixed side. The design of an electromechanical lock is similar to a conventional door lock, which can be mortise or overhead.

Twisted pair cables, used in computer networks, can be used as low-current signal wires. The specificity of this type of lock is that it moves the bolt that holds the door in the closed position. They do not fail in any frost or rainy season. In addition to its main task, easy identification of the visitor during the day and at night, it takes a photo at the time of the call, is capable of organizing two-way audio communication, and performing many more actions. Also pay attention to the operating temperature range of electronic equipment that will be placed outdoors. Connecting an electromechanical lock

What is a video intercom

A video intercom is a security device that allows you to control the arrival and departure of people in your home, record audio and video of arrival/departure events, and remotely open the front door lock. The operating principle is similar to a conventional intercom:

the guest approaches the door and presses the call button;
the alarm system is activated in the house;
the owner sees it and decides whether to open it or not.

Unlike a simple audio intercom, a video stream is also transmitted along with the sound. This way the owner sees the newcomer. In classic systems, the transmission goes to the included monitor, but phones and tablets are often used as the head unit. To do this, the intercom must be “smart” and support the appropriate capabilities.

“Smart intercom” may have additional functions:

differentiation of access rights;
intelligent face recognition system;
broadcasting data to cloud services;
remote control via the Internet.

Interface devices

In order to connect an individual video intercom to an entrance device, you need to purchase an interface unit. The type of interface unit depends on the design of the entrance intercom. So, only corresponding devices are suitable for coordinate intercoms.

Structurally, all interface devices are a small block with a contact block, where a certain number of wires are connected under a screw. The usual connection diagram includes 12 lines, which are divided into 4 groups: “call panel”, “monitor”, “additional camera”, “line”. Interface modules have this connection diagram.

The company produces two types of interface modules:

MSC module
MSC module

The first modification is designed to work with coordinate intercoms, and the second - with digital ones. Externally, both adapters look exactly the same. The marking of wire lines is no different.

The “call panel” and “monitor” groups each have 4 wires:

Video
Audio
+ 12 V
GND (ground, common)

An individual calling panel is connected to these terminals, which is mounted on the door and apartment monitor, which have the same lines, so it is quite difficult to confuse anything. The “additional camera” group has two wires – “video” and “ground”. If the entrance intercom is equipped with such a video camera, then it should be connected to these contacts. Two conductors are connected to the line terminals. In a coordinate system these will be two wires from the switch to a given apartment, and in a digital adapter there will be a common two-wire line. The terminals indicate polarity, which must be observed when connecting. If there is an error, the system simply will not work.

To do this, unscrew the two screws and open the module cover. There are two potentiometers on the left side of the board. One of them adjusts the volume from the visitor to the subscriber, and the second changes the volume level that the visitor hears when talking with the owner of the apartment. Setting the levels is best done with two people. By carefully rotating the potentiometers with a small screwdriver, you should achieve good and undistorted sound on both channels, as well as the absence of whistling.

https://youtube.com/watch?v=n_0sKS9u6eA

Ready-made videophone or interface module

Manufacturers of inexpensive, widely used devices do not produce ready-made videophones. Almost all companies that sell and install access control systems remake audio devices. The devices are purchased in bulk and then redesigned, incorporating an internal adapter into each one. Such video intercoms for entrances have a number of very significant disadvantages.

Remanufactured devices are not covered by the manufacturer's warranty.
If such a device fails, you will have to wait several weeks for the necessary spare parts. Repairs will cost a significant amount, comparable to the cost of the entire control system. While waiting for the failed unit to be delivered and repaired, in order to let a guest in, you will have to go down and open the entrance door manually each time.
Converted devices are prone to errors and failures, they are sensitive to interference. The audibility and quality of the video signal very often leaves much to be desired.

An alternative, inexpensive solution is to purchase an external mating adapter that is compatible with the driveway system.

Advantages of an external unit for connecting a video intercom with an entrance intercom:

The connection diagram for a video intercom to an entrance intercom does not require disassembly or changes to the design of the latter. The manufacturer's warranty on the audio device remains valid. The adapter is mounted in the panel where the monitor is located, or in a low-current distribution board.
The ability to connect a video intercom to the entrance device with your own hands. Even a non-specialist can remove or install the adapter. It is enough to make the connections exactly according to the diagram.
The connection diagram is in the technical documents of the interface module and videophone.

Example of connecting an interface block

Relatively low cost of the adapter. If it fails, you can cheaply buy the same or similar module.
Possibility to connect several panels and additional video cameras to one module. It is advisable to buy such video intercoms for an apartment with a connection to an entrance intercom for several subscribers.
Small dimensions. The remote adapter easily fits behind the monitor panel or low-current part of the switchboard.
Ability to adjust image brightness, sound volume on the video monitor, and interface unit.