The equipment refers to the physical devices that enable communication within an intercom system. From the control unit that manages all calls to substations, video door stations, headsets, or door openers, each component fulfills a specific function within the communication network. Some are fixed, others portable; some support audio only, while others integrate video, access control, or automated functions.
This section explains the main devices that make up a modern intercom system: what they do, how they are connected, and in which contexts they are used.
Detrás de cada conversación clara y segura, hay un equipo que la hace posible.
What is a control unit in intercom systems?
It is the main device that manages all communications within the system: it receives calls, distributes them, activates functions such as door opening or alarms, and monitors the status of connected devices.
It is the “brain” of the system: it coordinates, controls, and communicates.
What is a substation in an intercom system?
It is a secondary device installed in specific areas (rooms, entrances, service points) that allows initiating or receiving calls from the control unit or between substations.
It is the “local terminal” that connects each point with the rest of the system.
What is a video intercom and what are its functions?
It is a device that combines a camera, microphone, speaker, and call button to enable audiovisual communication between the outside and the inside of a building.
It allows you to see, speak, and decide whether to open the door—all from a single unit.
What is an audio door entry system?
It is an audio intercom system that allows you to speak with someone calling from outside and activate the door opening if desired.
It is the basic version of the video intercom, without image but with access control.
What is an induction loop and what is it used for?
It is a system that transforms sound into a magnetic field that can be directly picked up by hearing aids or cochlear implants set to “T” mode. The user receives the message clearly, without interference or background noise.
It allows people with hearing disabilities to listen clearly in public spaces such as stations, counters, or waiting rooms. It can be integrated into public address and intercom systems.
What is a door release and how does it work?
It is an electric mechanism installed in the lock that allows the door to be opened remotely, activated from the central unit, video intercom, or handset.
It converts an electrical signal into movement: opens the door without leaving your place.