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Distribution automation using distribution line carrier system - Part 4: Data communication protocols - Section 1: Reference model of the communication system. Original standard BS EN 61334-4-1-1997 (2000) in PDF full version. Additional info + preview on request

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Distribution automation using distribution line carrier system - Part 4: Data communication protocols - Section 32: Data link layer - Logical link control (LLC). Original standard BS EN 61334-4-32-1997 (2000) in PDF full version. Additional info + preview on request

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Distribution automation using distribution line carrier system - Part 4: Data communication protocols - Section 42: Application protocols - Application layer. Original standard BS EN 61334-4-42-1997 (2000) in PDF full version. Additional info + preview on request

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Original standard BS EN 61429-1997 (2000) in PDF full version. Additional info + preview on request

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Secondary cells and batteries containing alkaline or non-acidic electrolytes - Guide to the designation of current in alkaline secondary cell and battery standards. Original standard BS EN 61434-1997 (1999) in PDF full version. Additional info + preview on request

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Methods of measurement for waveguides - Waveguide power holding capability. Original standard BS EN 61580-8-1997 (1998) in PDF full version. Additional info + preview on request

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