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Industrial communication networks. Fieldbus specifications - Application layer protocol specification. Type 3 elements. Original standard UNE-EN IEC 61158-6-3-2019 in PDF full version. Additional info + preview on request

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Radio-frequency connectors - Sectional specification. Radio frequency coaxial connectors with screw coupling, typically for use in 75 O cable networks (type F). Original standard UNE-EN IEC 61169-24-2019 in PDF full version. Additional info + preview on request

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Low-voltage switch mode power supplies - Electromagnetic compatibility (EMC). Original standard UNE-EN IEC 61204-3-2018 in PDF full version. Additional info + preview on request

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Low-voltage switch mode power supplies - Safety requirements. Original standard UNE-EN IEC 61204-7-2018 in PDF full version. Additional info + preview on request

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Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 2-4: Tests. Fibre or cable retention. Original standard UNE-EN IEC 61300-2-4-2019 in PDF full version. Additional info + preview on request

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Electrical equipment for measurement, control and laboratory use - EMC requirements Part 3-2: Immunity requirements for safety-related systems and for equipment intended to perform safety-related functions (functional safety) - Industrial applications with specified electromagnetic environment (IEC 61326-3-2:2017). Original standard UNE-EN IEC 61326-3-2-2018 in PDF full version. Additional info + preview on request

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