Unified automated country communication system. Channels of acoustic telegraphy with frequency modulation. Types and basic electric parameters
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United automatic telecommunication network. Terms and definitions
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Unit automated communication system. Common requirements of subscriber units for interaction with AT-50 and ПД-200 networks
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Unit automated communication system. Common requirements of interaction signals on subscriber link of AT-50 and ПД-200 networks
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Unit automated communication system. Common requirements to interaction procedures of subscriber units with AT-50 and ПД-200 networks
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System, communication, automatic, united. Terminals for telegraphic communication and data transferring. Procedures of interaction with AT-50 and ПД-200 systems
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Primary network of coordinated automated complex telecommunication system of the CMEA member countries for transmitting all kinds of information. Terms and definitions
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Elements of data transmission procedures and packet formats in the packet-switching data networks oriented to virtual connections
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Distribution networks of receiving TV and radio systems. Classification of receiving systems, basic parameters and technical requirements
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Intermediate stations for train control tower and (railway) junction connection types ППТ-66Д and ППТ-66П. Quality requirements of certified products
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Data exchange for meter reading, tariff and load control. Direct local data exchange
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Data exchange for meter reading, tariff and load control. Local bus data exchange
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