Security fire warning

nbsp;For receiving and processing of notices the security and fire alarm system uses various types of the reception and control equipment: the central stations, control panels, devices reception and control (the name is defined by standards of the manufacturing country, further in the text we will accept the term "control panel"). This equipment differs in information capacity — quantity of controlled loops of the alarm system and extent of development of functions of management and the notification. Distinguish control panels of the security and fire alarm system for small, average and big objects. As a rule, small objects are equipped with not address systems controlling several loops of the security and fire alarm system, and on average and big objects address and address and analog systems are used. 
Distinctive design feature of the address and address and analog security and fire alarm system is application of the ring loop of the alarm system having the increased protection against violation of communication lines with announcers. As a rule, the ring loop of control panels of different manufacturing firms is hardware-compatible with the announcers developed by the same firms. Some control panels support several options of topology of ring loops that facilitates design of the fire alarm system on object.