When security organization (the installation of security systems), special attention is paid to the paging system. The main function of the warning system is to warn of the danger. A secondary function can be called broadcast of audio signals: music, news reports. Warning system includes the following constituent elements: notification unit, amplifiers, speakers (sound source), microphone, etc. Schematic diagram rabotvy as follows: the signal goes to the notification unit, then through amplifiers audio message broadcast over loudspeakers warning systems can be roughly divided into 2 subgroups: placed in special cabinets and desk. Board designed to increase the alarm and transfer it to the speakers, consists of a small number of items.
System, mounted in special cabinets, consists of a large number of hotel units, have great power. When you select a notification system, including amplifiers, consider the size of the room, the planned number of speakers. All kinds of amplifiers have multiple inputs, one of whom is endowed with priorities. When a signal is applied to such input, all the rest is mute. The system alerts include speakers. Wide range of speakers allows mount a warning system in the most remote places. By way of fixing distinguish the following types of speaker: wall and ceiling. On the possible deployment conditions: internal (indoor) and all-weather (outdoor).
Weatherproof subdivided into subspecies: the sound tower and horn loudspeakers. Depending on the functions performed (broadcast voice message or listening only to the voice message) selected appropriate models for the speakers. Because of the quality of the speaker dependent transfer and report the alarm, and their choice must be treated most seriously. The presence of additional modules warning system depends on the objectives to comply with safety indoors as well outdoors, but on the functions of alarm systems.