Block diagram of 12 lines intercom set?

A block diagram of a 12-line intercom set typically includes components such as a central control unit, individual intercom stations, and power supply. Each intercom station is connected to the control unit, allowing communication between all units. Additional components may include a paging system, indicator lights, and a speaker/microphone for audio transmission. The diagram visually represents the connections and flow of communication among the 12 intercom lines.