Optical fibres -- Product specifications. Sectional specification for category A4 multimode fibres
IEC 60793-2-40:2021 RLV contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 60793-2-40:2021 is applicable to category A4 optical multimode fibres and the related subcategories A4a, A4b, A4c, A4d, A4e, A4g, A4h and A4i. These fibres have a plastic core and plastic cladding and may have step-index, multi-step index or graded-index profiles.
The fibres are used in information transmission equipment and other applications employing similar light transmitting techniques, and in fibre optic cables. Table 1 summarizes some of the salient characteristics and applications of these fibres.
This fifth edition cancels and replaces the fourth edition published in 2015. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
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