FIELD: information technologies.
SUBSTANCE: device comprises a unit with a retroreflector equipped with a light modulator, a photodetector, a beam divider and a control unit, switching modulator condition as the photodetector receives an optical signal interpreted as a logical unit from the other device, and an access unit comprising a transmitter of two types of optical signals, a logical zero and a unit, a receiver of optical zero signals and a comparator of intensities.
EFFECT: increased throughput capacity of communication facilities.
3 cl, 6 dwg
