BS EN IEC 60793-2-10:2019

What is BS EN IEC 60793‑2‑10 - Optical fibres about?

BS EN IEC 60793 is a series on optical fibres. Optical fibres are used most often as a means to transmit light. is applicable to optical fibre sub-categories A1-OM1, A1-OM2, A1-OM3, A1-OM4, A1-OM5, and A1d. BS EN IEC 60793‑2‑10 specifies fibres that are used or can be incorporated in information transmission equipment and optical fibre cables. Sub-categories A1-OM2, A1-OM3, A1-OM4 and A1-OM5 apply to 50/125 μm graded-index fibre in four bandwidth grades. Each of these bandwidth grades is defined for two levels of macro bend loss performance that are distinguished by the "a" or "b" suffix. Those sub-categories with the suffix "a" are specified to meet traditional macro bend loss performance levels. Those subcategories with suffix "b" are specified to meet enhanced macro bend loss (i.e., lower loss) performance levels.

Sub-category A1-OM5 is specified to support single wavelength or multi-wavelength transmission systems in the vicinity of 850 nm to 950 nm. Although not normatively specified, bandwidth information covering this wavelength range is also included for A1-OM3 and A1-OM4. Sub-category A1-OM1 applies to 62,5/125 μm graded-index fibre and sub-category A1d applies to 100/140 μm graded-index fibre.

Three types of requirements apply to these fibres:

• General requirements, as defined in IEC 60793-2
• Specific requirements common to the category A1 multimode fibres covered in this document and which are given in Clause 5
• Particular requirements applicable to individual fibre sub-categories and models, or specific applications, which are defined in the normative specification Annexes A to D

Who is BS EN IEC 60793‑2‑10 - Optical fibres for?

BS EN IEC 60793‑2‑10 on optical fibres is useful for:

• Telecommunication equipment manufacturers
• Telecommunication components manufacturers
• Quality control personnel
• Research and development facilities
• Design engineers

Why should you use BS EN IEC 60793‑2‑10 - Optical fibres?

Between the two ends of the fibre and find wide usage in fibre optic communication, where they permit transmission over longer distances and at higher bandwidth (data transfer rates) than electrical cables. BS EN IEC 60793‑2‑10 discusses fibres that are used for the transmission equipment or cables. BS EN IEC 60793‑2‑10 contains particular requirements applicable to sub-categories A1-OM2, A1-OM3,A1-OM4 and A1-OM5 fibres. Sub-categories A1-OM2, A1-OM3, A1-OM4 and A1-OM5 are 50/125 μm graded-index multimode fibres in four bandwidth grades.

Sub-categories A1-OM2, A1-OM3, A1-OM4 and A1-OM5 are also specified for two levels of macro bend loss performance that are distinguished by the "a" or "b" suffix. Those with the suffix "a" (i.e., models A1-OM2a, A1-OM3a, A1-OM4a and A1-OM5a) are specified to meet traditional macro bend loss performance levels. Those with suffix "b" (i.e., models A1-OM2b, A1-OM3b, A1- OM4b and A1-OM5b) are specified to meet enhanced macro bend loss (i.e., lower loss) performance levels, and thereby also comply with traditional macro bend loss performance.

Other applications of BS EN IEC 60793‑2‑10 include, but are not restricted to short reach, high bit-rate systems in telephony, distribution and local networks carrying data, voice and/or video services; on-premises intra-building and inter-building fibre installations including data centres, local area networks (LANs), storage area networks (SANs), private branch exchanges (PBXs), video, various multiplexing uses, outside telephone cable plant use, and miscellaneous related uses. Using BS EN IEC 60793‑2‑10 you can specify fibres that are used or can be incorporated in information transmission equipment and optical fibre cables.

What’s changed since the last update?

BS EN IEC 60793‑2‑10:2019 supersedes BS EN 60793‑2‑10:2017. BS EN IEC 60793‑2‑10:2019 includes a technical change with respect to BS EN 60793‑2‑10:2017:

• Revision of the naming convention for A1 multimode fibres, which better matches with those found in ISO/IEC standards