FIELD: physics, communications.
SUBSTANCE: invention relates to automation and telemechanic devices and can be used for receiving and transmitting control and data signals in automation and telemechanic systems and various communication devices. The system has reception and transmission adapters consisting of series-connected modulator switch and optical generator, a photodetector for the reception adapter, includes an amplifier, a signal conditioner and an output matching device, as well as a microprocessor unit with a cryptographic unit and a current generator stabiliser, an input matching device, a random sequence generator and series-connected digital signal conditioner, amplifier and photodetector.
EFFECT: higher level of protection.
1 dwg
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