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IEC 60793-2-40-ed.5.0

Optical fibres - Part 2-40: Product specifications - Sectional specification for category A4 multimode fibres

STANDARD published on 25.2.2021

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The information about the standard:

Designation standards: IEC 60793-2-40-ed.5.0
Publication date standards: 25.2.2021
The number of pages: 68
Approximate weight : 204 g (0.45 lbs)
Country: International technical standard
Category: Technical standards IEC

Annotation of standard text IEC 60793-2-40-ed.5.0 :

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: - revision of NA range of A4a.2; - addition of a new subcategory A4i; - deletion of the subcategory A4f and of Annex F. LIEC 60793-2-40:2021 sapplique a la categorie de fibres optiques multimodales A4 et a ses sous-categories A4a, A4b, A4c, A4d, A4e, A4g, A4h et A4i. Ces fibres possedent un cour et une gaine en plastique et elles peuvent avoir des profils de type en saut dindice, en sauts multiples dindice ou en gradient dindice. Les fibres sont utilisees dans les equipements destines a la transmission de linformation et dans dautres applications utilisant des techniques similaires de transmission du rayonnement lumineux, et dans des cables fibroniques. Le Tableau 1 resume certaines des caracteristiques et applications principales de ces fibres. Cette cinquieme edition annule et remplace la quatrieme edition parue en 2015 dont elle constitue une revision technique. La presente edition inclut les modifications techniques majeures suivantes par rapport a ledition precedente: - revision de la plage douvertures numeriques des fibres A4a.2; - ajout dune nouvelle sous-categorie A4i; - suppression de la sous-categorie A4f et de lAnnexe F.