METHOD OF CONTROLLING UNAUTHORIZED ACCESS TO DATA OPTICAL RADIATION TRANSMITTED OVER FIBRE-OPTIC COMMUNICATION LINES Russian patent published in 2016 - IPC H01B7/32 

FIELD: security systems.

SUBSTANCE: invention relates to creation of a method of protection of a fibre-optic communication line against attempts of unauthorized access (UAA) to data optical radiation transmitted over fibre-optic communication lines. Around the fibre-optic cable a protective shell is created consisting of at least one layer of dense circular metal current-conducting jacket consisting of single insulated wires, the diameter of which is set minimum possible, herewith the number of wires in each layer of such jacket is set even, and on one end of each layer of the jacket any two free single insulated wires are soldered together, and at the opposite end of the jacket layer located in the room, from which the UAA control is performed, wires of each layer of the jacket are soldered.

EFFECT: creation of a security alarm sensor, which enables continuous objective hardware control over attempts of unauthorized access to data optical radiation transmitted over fibre-optic communication lines.

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