How to open an intercom Eltis without a key

The door phone Eltis is a special device that is often used to protect the entrance door from getting into the house of unauthorized persons. Each tenant receives an electromagnetic key, with which you can open this lock. The above device has many advantages. According to many experts, opening it without a key can be quite simple. This is the main disadvantage of this intercom. So, read more about the above device.

Door phone Eltis: description

The above - mentioned interlocking and locking device is manufactured by the manufacturer as a multi-unit device of the PU-CP-100KM series. Its main purpose is installation in multi-apartment buildings, offices. Also, the intercom Eltis can be used to organize a so-called intercom system (the number of subscribers should not exceed 100).

Specialists note that the above device is a microprocessor-based specialized system, which is mainly built on a microcontroller 87C51 (manufactured by Intel).

For cable management, two ten-wire buses are used for subscriber's apartments (consoles). The main components of the door phone Eltis:

• Switching and calling units;
• Consoles;
• Power Supply.

Also, the above device can also be completed with door closer (hydraulic) in order to smoothly close the front door, and electromagnetic locks. But these additional components are established only at will of tenants of the house.

The built-in key reader of the electronic type, according to the principle of touch memory, is located on the intercom door intercom.

Advantages of Eltis

The door phone, the code from which in most cases is easy to pick up, has the following advantages:

• Provides the ability to connect a large number of subscribers (up to 100);
• Has the timing of opening the lock;
• Has a small number of communication lines;
• There is the possibility of turning off / on the code lock mode;
• Has a backlight of the device's panel, a melodic call signal, a sounded keyboard;
• Has a duplex type of communication.

How the Eltis works

The visitor should dial the apartment number and press the "Call" button. Through the battery of this unit, the selected room is connected and a signal is generated. It stops when the subscriber lifts the tube. After 60 seconds (when a person is not in the apartment) or pressing the "Reset" button, you can also break the signal.

The work of the above block is accompanied by the inscriptions on the display:

• "Speak" (when a visitor can say something);
• "Error" (in case of using an incorrect apartment number or an unsuitable electronic key);
• "open".

The "Reset" button is used to return the system to the initial position in case of any error.

How to open an intercom Eltis without a key?

Specialists note that it is not particularly difficult to carry out the above-mentioned action. To do this, you just need to use some guidelines to open this device from Eltis.

The doorphone, the opening code of which is not excessively complicated, without a key is opened with the help of the following dial-and-letter combination:

• "B" (wait for the call), then dial "100", then again "B", then click on 7273;
• "B" (wait for a dial tone), then dial "100-V-2323";
• "In" (waiting for the call), then click "100-V-7272".

Experts argue that if the above combination does not open the device, then the number 100 can be replaced by 200 or 300.

The door phone Eltis is a good protector of your house. Remember: if the installer did not change the master password when installing the above device, it is not difficult to open it without a key.