| 摘要 |
It is the aim of the invention to provide a door intercom and bell system making it possible to provide additional functions besides the bell and largely avoid additional wiring. This aim is achieved in that the keypad and the call system in the dwelling are connected via a bus system to a microcontroller and electronically controlled indicators are fitted as identification plates. The invention relates to a door intercom and bell system with a keypad having at least one identification plate. |
