IEC 60793-2-50-2015 pdf download.Optical fibres – Part 2-50: Product specifications – Sectional specification for class B single-mode fibres. This part of IEC 60793 is applicable to optical fibre categories B1 .1 , B1 .2, B1 .3, B2, B4, B5 and B6. A map illustrating the connection of IEC designations to...
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