Nurse call and alarm system for nursing homes and the like

Claim 1

A nurse call, exit door and zoned fire alarm system for nursing homes and the like comprising in combination a control box and visual display panel unit adapted for placement at a central nursing station, said display panel of the unit containing visual room numbers arranged consecutively, room number indicator lights on said unit behind said room numbers for illuminating the numbers selectively, room manual switches in reach of patients occupying the rooms and arranged remote from said unit, said room switches electrically coupled in parallel with said room number indicator lights in said unit by a first electrical cable leading into said unit, a room buzzer on said unit including a nurse operated override switch and being electrically coupled through said first electrical cable with said room manual switches, an automatic timer device on said unit coupled with said buzzer causing the buzzer to sound intermittently at the central nursing station in response to closing of any one of said room manual switches, plural building exit door switches arranged remote from said unit and electrically coupled with said buzzer in said unit through a second cable leading into said unit, a second nurse operated buzzer override switch on said unit connected in said second cable, plural fire zone indicator lights on said display panel of the unit, fire zone thermal detectors arranged remotely from said unit, a single fire alarm audible device common to said detectors in said unit and fire alarm relay means in said unit electrically connected with said fire alarm audible device and fire zone indicator lights, and a third electrical cable leading from said fire zone thermal detectors into said unit and being electrically connected with said relay means.