FIELD: communication. SUBSTANCE: device has first and second fiber-optical systems, workstation and personal computer. System has dispatch circuit, which gathers source information and is connected to first and second fiber-optical systems, dispatch circuit, which gathers secondary information and is connected to source information dispatch circuit, and dispatch circuit, which gathers tertiary information and is connected to secondary information dispatch circuit. Latter circuit transmits information to workstation. EFFECT: increased reliability of information transmission. 3 cl, 5 dwg
