Data transmission systems. Bit signalling rates and basic parameters of noise-immune cyclic codes
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Data transmission. Terms and definitions
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Channels of data transmission. Methods of measuring parameters
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Data transmission equipment. Automatic calling equipment UAV-TLF. Types and basic parameters
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Frequency-division carrier transmission system equipment. Terms and definitions
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Error control equipments. Types and basic parameters
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Data transmission interface with communication channel transmission frequency separation system. Basic parameters at the interface
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Group interface for data signal transmission equipment. Key parameters
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High level data link control procedures. Frame structure
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High level data link control procedures. Elements of balanced procedures by the two-way simultaneous data communication and error recovery
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Transmission signal nominal relative levels and input and output impedance of the interconnection points
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Data transmission system signal conversion modulus for unswitched voice-frequency channels. Types and basic parameters
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