What is BS EN IEC 60793‑2‑40 about?
BS EN IEC 60793‑2‑40 is part of a multi-series on optical fibres. BS EN IEC 60793‑2‑40 is applicable to category A4 optical multimode fibres and related subcategories A4a, A4b, A4c, A4d, A4e, A4g, A4h and A4i. These multimode fibres have a plastic core and plastic cladding and may have a step-index, multi-step index or graded-index profiles.
These multimode fibres are used in information transmission equipment and other applications employing similar light transmitting techniques and in fibre optic cables.
Three types of requirements for A4 fibres are elaborated in BS EN IEC 60793‑2‑40:
- General requirements
- Specific requirements common to category A4 multimode fibres covered in IEC 60793‑2‑40
- Requirements applicable to individual fibre sub-categories and implementations or specific applications which are defined in IEC 60793‑2‑40
Who is BS EN IEC 60793‑2‑40 for?
BS EN IEC 60793‑2‑40 on multimode fibres is useful for:
- Manufacturers of optic communication equipment and devices
- Quality control personnel
- Design engineers
Why should you use IEC 60793‑2‑40?
Fibre optic equipment and devices have revolutionized communication speeds. They continue to get faster and better. Optical fibres of category A4 multimode fibres are used for communication over short distances, such as within a building or on campus. A4a.2 is a higher grade of subcategory A4a fibre in terms of attenuation and bandwidth, as compared to A4a.1.
BS EN IEC 60793‑2‑40 describes the A4a.2 subcategory A4a fibres, which are intended to be used with wavelengths below 650 nm. PMMA based fibres have the lowest attenuation at wavelengths around 520 nm and 560 nm. BS EN IEC 60793‑2‑40 specifications help you to manufacture high-quality multimode fibres.
What’s changed since the last update?
BS EN IEC 60793‑2‑40:2021 supersedes BS EN 60793‑2‑40:2016. BS EN IEC 60793‑2‑40:2021 includes some technical changes with respect to BS EN 60793‑2‑40:2016. These include:
- Revision of NA range of A4a.2
- Addition of a new subcategory A4i
- Deletion of the subcategory A4f and of Annex F
