LAID IN THE GROUND FIBRE-OPTIC TELECOMMUNICATION SYSTEM SUBSCRIBER ACCESS AND FIBRE-OPTIC SECURITY SYSTEM OF HOUSEHOLD OBJECT (VERSIONS) USING LAID IN THE GROUND FIBRE-OPTIC TELECOMMUNICATION SYSTEM SUBSCRIBER ACCESS

摘要

FIELD: information technology.;SUBSTANCE: invention relates to communication, particularly to multiservice subscriber access networks (MSAN) based on an interactive fibre-terrestrial architecture. Protected area is divided into coarse household object as extended and local configuration on a large number of related perimeter sections with length of the perimeter of each area of not more than 10-15 km, which allows considerably enlarging the service zone, broken equipment fibre-optic security system on mutually cooperative subsystem protection ring topology, which realizes in each section as sensing perimeter using coherent reflectometry, and communication subsystem double bus topology this function pretreatment and serial transmission between sections of results of probing security subsystem in a single control centre using a temporary and spectral separation channels and regeneration of signals at each section. Sensor is added to fibre-optic cable of two additional single-mode fibre for separate transmission of signals outgoing and incoming directions communication subsystem, which prevents mutual influence of both subsystems fibre-optic security system while maintaining high sensitivity to acoustic effect.;EFFECT: providing protection against deliberate damage cable; higher accuracy of determining point of intrusion single-area coherent fibre-optic security system (FOSS).;5 cl, 8 dwg