What wire to use for intercom?
There are really only two main wire types used for intercoms. Shielded and unshielded twisted pair Category 3, 5e, or 6 as defined below. Some intercoms require a cable with a shield around the internal wires. Intercom systems connect multiple devices into a network using CAT-5 Ethernet cables and RJ45 connectors which enables uninterrupted communication between different rooms or buildings.That means that while an intercom system does need electricity to function, it doesn’t need an internet connection. While these systems can be used in a variety of ways they are primarily used for communication and property access control.
How is an intercom system wired?
Wired intercoms consist of master stations, such as the main door intercom unit, and sub-stations connected through dedicated wiring. The system transmits audio (and sometimes video) signals between these stations. Wired intercoms use a hardwired connection between the master station and substations through cabling that has to be installed in walls or ceilings. This hardwired intercom system also requires cabling to provide power to the components.A 2-wire intercom system works by transmitting audio back and forth between a master station and a base station. Two-wire intercoms allow residents to let somebody at the front door in. But many come with one significant limitation: When the resident is speaking to their guest, both parties can’t talk at the same time.