Intercom system principle and classification

XP-DMC33 video intercom doorbell color hands-free

Intercom system works

The building intercom system is mainly composed of digital networked entrance host, color visual internal extension, floor controller, unit network controller, community networking intercom system working principle network controller, system power supply, intercom access control and network management center The machine consists of several parts.

Each user extension in the building is connected by a 5-core shielded data cable and a video coaxial cable to the floor controller. The floor controller is connected to the digital networked door console by a 5-core shielded cable and a video coaxial cable, and the digital network is connected. The host computer connects to the community network controller through a 5-core shielded cable and a video coaxial cable.

The system realizes the call and unlock function of the user and the door-to-door visitor through the networked network, and realizes the call function between the user and the management office. In each building, a unit door machine is installed. When the visitor presses the corresponding room number of the household, the interviewed household can see the visitor's appearance from the monitor of the indoor extension. At the same time, the “Intercom” button can also be pressed. With the visitor hands-free call, if you press the unlock button, you can open the electric lock at the gate. Intercom actions are performed in hands-free mode, with easy operation and clear sound quality.

The residential building park where the building intercom system is installed has a management center, and a controller is installed so that the direct communication between the occupants and the visitors becomes a tripartite communication between the occupants, the management center and the visitors. Adding the management center controller to the building's video intercom monitoring system is equivalent to enhancing the system's security protection capabilities and further enhancing the comprehensive management capabilities of the property management department for residential communities. Enables the cell manager to call any building manager and any extension and talk to them.

Classification of building intercom systems

Basic property classification: 1. Visual intercom system; 2. Non-visual intercom system.

Transmission classification: 1. Bus system intercom system; 2. Network intercom system; 3. Wireless intercom system.

Use location classification: 1. IP digital network intercom system; 2. IP digital network building video intercom system; 3. Prison intercom system; 4. hospital intercom system (health care intercom system); System; 6. School intercom system; 7. Bank intercom system (bank window intercom).