Abstract

An alarm system for notifying personnel in an adjustably set priority sequence of an alarm condition includes one or more alarm sensors, a central alarm station, a plurality of primary remote stations, and one or more secondary remote stations. The alarm sensors are connected to the central alarm station to communicate the occurrence of alarm conditions thereto. The central alarm station includes a priority selector device, a device for establishing a primary notification signal based upon the signals received from the alarm sensors and upon the setting of the priority selector device. The central alarm station also includes a transmitter for transmitting the notification signal to the primary remote stations and a receiver for receiving an acknowledgement signal from the primary remote stations. The primary remote stations each include a receiver for receiving the notification signal, an address detector device, a display device, a response encoder device, and a transmitter for transmitting the acknowledgement signal from the response device. The primary remote stations include another transmitter for transmitting a secondary notification signal to the secondary remote stations. The secondary remote stations include a receiver for receiving this secondary notification signal and also an indicator device and reset device for indicating the reception of the signal from the primary remote station.