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Optical circuit boards - Part 3- Performance standards - General and guidance. IEC 62496-3:2011. Original standard IEC 62496-3-2011 in PDF full version. Additional info + preview on request

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Optical circuit boards - Part 4-1- Interface standards - Terminated waveguide OCB assembly using single-row twelve-channel PMT connectors. IEC 62496-4-1:2019-02(en-fr). Original standard IEC 62496-4-1-2019 in PDF full version. Additional info + preview on request

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Optical circuit boards - Part 4- Interface standards - General and guidance. IEC 62496-4:2011. Original standard IEC 62496-4-2011 in PDF full version. Additional info + preview on request

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Optical circuit boards - Part 4-214- Interface standards - Terminated waveguide OCB assembly using a single-row thirty-two-channel symmetric PMT connector. IEC 62496-4-214:2020-05(en-fr). Original standard IEC 62496-4-214-2020 in PDF full version. Additional info + preview on request

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Amendment 1 - Railway applications - Insulation coordination - Part 1- Basic requirements - Clearances and creepage distances for all electrical and electronic equipment. Original standard IEC 62497-1-2013 in PDF full version. Additional info + preview on request

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Railway applications - Insulation coordination - Part 2- Overvoltages and related protection. IEC 62497-2:2010. Original standard IEC 62497-2-2010 in PDF full version. Additional info + preview on request

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