How does a 2-wire BUS video door intercom system work?

A 2-wire BUS video intercom system transmits video, audio and power using only two cables. This simplifies installation significantly, especially in apartment buildings.

When a visitor presses the doorbell button, the camera sends the live video signal to the indoor monitors. Residents can then identify the visitor, communicate through the intercom and activate the electric door opener.

This wired BUS technology ensures a stable connection without wireless interference.