Combined alarm, security and rescue system.

A combined alarm, security and rescue system comprising a room box (33a-33j, 35a-35j) for one or more breathing masks for rescue purposes in an associated room and a two-way communication arrangement, for use for alarm and security purposes of a number of rooms, for example in high buildings (hotels, hospitals, office complexes, and the like). The room box (33a-33j, 35a-35j) is connected via a microswitch or similar actuating means to a data exchange (10) with data screen (21a) and printer (23). Two-way communication is established from the room box via the microswitch to the data exchange and from the data exchange to alarm producers of light and sound on the room box. The data exchange is adapted to emit by means of its own microprocessor alarms to rooms individually or in groups on one or more floors, as required, via the alarm producers of light and/or sound from associated room boxes, while the microswitch in connection with the room box is adapted to emit by manual or other actuation an equivalent signal to the data exchange for indicating room number, floor, hour, and the like.