FIELD: fire safety.
SUBSTANCE: device enables to extend the functionality of known devices for alarm not only about condition of controlled objects, but also the possibility of false data entry of start sequence of the device from the part of active infractor, thereby preventing the device blocking in case of unauthorised action on the line of communication.
EFFECT: increased reliability of control over the protected objects, the line of communication and data exchange between them, on the basis of coding and creating control code in the start mode.
1 dwg
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