FIELD: communication. SUBSTANCE: device has fiber-optical light guide, transmitting unit 2 with laser 3, receiver 4 and optical amplifiers 5- 8. Adapters 9-12 are designed as photodetectors 18, 24, signal level regulation units 19, 27, transmitting lasers 20, 28, electric amplifiers 21, 26, 31, internal channels input units 21 and low-pass filter 30. EFFECT: increased functional capabilities. 13 cl, 5 dwg
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