DIN EN IEC 62614-1:2021 Fibre optics - Multimode launch conditions - Part 1: Launch condition requirements for measuring multimode attenuation (IEC 62614-1:2020); German version EN IEC 62614-1:2020 was changed to DIN EN 62614:2011 Fibre optics - Launch condition requirements for measuring multimode attenuation (IEC 62614:2010); German version EN 62614:2010.
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