BS EN IEC 60793-2-10:2019 – TC:2020 Edition
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Tracked Changes. Optical fibres – Product specifications. Sectional specification for category A1 multimode fibres
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 126 |
IEC 60793-2-10:2019 is available as /2 which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 60793-2-10:2019 is applicable to optical fibre sub-categories A1-OM1, A1-OM2, A1-OM3, A1-OM4, A1-OM5, and A1d. These fibres 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 macrobend loss performance that are distinguished by ‘a’ or ‘b’ suffix. Those sub-categories with suffix ‘a’ are specified to meet traditional macrobend loss performance levels. Those sub-categories with suffix ‘b’ are specified to meet enhanced macrobend 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. Other applications include, but are not restricted to, the following: 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.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. This seventh edition cancels and replaces the sixth edition published in 2017. This edition constitutes a technical revision. This edition includes the following significant change with respect to the previous edition: revision of the naming convention for A1 multimode fibres, which better matches with those found in ISO/IEC standards. These changes are outlined in the scope of this document along with a cross reference table for the new names. Keywords: optical fibre sub-categories A1-OM1, A1-OM2, A1-OM3, A1-OM4, A1-OM5, and A1d
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | compares BS EN IEC 60793-2-10:2019 |
| 2 | TRACKED CHANGES Text example 1 — indicates added text (in green) |
| 70 | undefined |
| 73 | Annex ZA(normative)Normative references to international publicationswith their corresponding European publications |
| 75 | English CONTENTS |
| 78 | FOREWORD |
| 80 | 1 Scope |
| 81 | 2 Normative references Tables Table 1 – Cross reference IEC A1 multimode fibre designations to IEC 60793-2-10:2017 |
| 82 | 3 Terms and definitions |
| 83 | 4 Abbreviated terms 5 Specifications 5.1 General 5.2 Dimensional requirements |
| 84 | Table 2 – Dimensional attributes and measurement methods Table 3 – Dimensional requirements common to category A1 fibres Table 4 – Additional dimensional attributes required in sub-category specifications |
| 85 | 5.3 Mechanical requirements 5.4 Transmission requirements Table 5 – Mechanical attributes and measurement methods Table 6 – Mechanical requirements common to category A1 fibres |
| 86 | Table 7 – Transmission attributes and measurement methods Table 8 – Additional transmission attributes required in sub-category specifications |
| 87 | 5.5 Environmental requirements 5.5.1 General Figures Figure 1 – Relation between bandwidths at 850 nm and 1 300 nm |
| 88 | 5.5.2 Mechanical environmental requirements (common to all fibres in category A1) Table 9 – Environmental exposure tests Table 10 – Attributes measured for environmental tests Table 11 – Strip force for environmental tests |
| 89 | 5.5.3 Transmission environmental requirements Table 12 – Tensile strength for environmental tests Table 13 – Stress corrosion susceptibility for environmental tests Table 14 – Change in attenuation for environmental tests |
| 90 | Annexes Annex A (normative) Specifications for sub-categories A1-OM2, A1-OM3, A1-OM4 and A1-OM5 multimode fibres A.1 General A.2 Dimensional requirements |
| 91 | A.3 Mechanical requirements A.4 Transmission requirements Table A.1 – Dimensional requirements specificto A1-OM2, A1-OM3, A1-OM4 and A1-OM5 fibres Table A.2 – Mechanical requirements specificto A1-OM2, A1-OM3, A1-OM4 and A1-OM5 fibres |
| 92 | Table A.3 – Transmission requirements specificto A1-OM2, A1-OM3, A1-OM4 and A1-OM5 fibres |
| 93 | A.5 Environmental requirements |
| 94 | Annex B (normative) Specifications for sub-category A1-OM1 multimode fibres B.1 General B.2 Dimensional requirements B.3 Mechanical requirements Table B.1 – Dimensional requirements specific to A1-OM1 fibres Table B.2 – Mechanical requirements specific to A1-OM1 fibres |
| 95 | B.4 Transmission requirements B.5 Environmental requirements Table B.3 – Transmission requirements specific to A1-OM1 fibres |
| 96 | Annex C (normative) Specifications for sub-category A1d multimode fibres C.1 General C.2 Dimensional requirements C.3 Mechanical requirements Table C.1 – Dimensional requirements specific to A1d fibres Table C.2 – Mechanical requirements specific to A1d fibres |
| 97 | C.4 Transmission requirements C.5 Environmental requirements Table C.3 – Transmission requirements specific to A1d fibres |
| 98 | Annex D (normative) Fibre differential mode delay (DMD), calculated effective modal bandwidth (EMBc) and calculated overfilled modal bandwidth (OMBc) requirements D.1 A1-OM3 fibre DMD requirements D.1.1 General D.1.2 DMD templates Table D.1 – DMD templates for A1-OM3 fibres |
| 99 | D.1.3 DMD interval masks Figure D.1 – DMD template requirements |
| 100 | D.2 A1-OM3 fibre EMBc requirements D.2.1 General D.2.2 Calculated effective bandwidth Table D.2 – DMD interval masks for A1-OM3 fibres |
| 101 | Table D.3 – DMD weightings |
| 102 | D.3 A1-OM4 DMD requirements D.3.1 General D.3.2 DMD templates |
| 103 | D.3.3 DMD interval masks D.4 A1-OM4 fibre EMBc requirements D.4.1 General D.4.2 Calculated effective bandwidth D.5 A1-OM5 fibre modal bandwidth requirements D.5.1 General Table D.4 – DMD templates for A1-OM4 fibres Table D.5 – DMD interval masks for A1-OM4 fibres |
| 104 | D.5.2 Calculated effective modal bandwidth D.6 A1-OM2, A1-OM3, A1-OM4 and A1-OM5 calculated overfilled modal bandwidth |
| 105 | Table D.6 – DMD weighting for OMBc |
| 106 | Annex E (informative) System, modal bandwidth, and transmitter considerations E.1 Background E.2 System considerations E.2.1 A1-OM3 and A1-OM4 fibres E.2.2 A1-OM5 fibre |
| 107 | E.3 Effective modal bandwidth (EMB) |
| 108 | Figure E.1 – Estimated minimum wide band EMB versus wavelength for A1-OM3 |
| 109 | Figure E.2 – Estimated minimum wide band EMB versus wavelength for A1-OM4 |
| 110 | E.4 Transmitter encircled flux (EF) and centre wavelength requirements E.4.1 Encircled flux Figure E.3 – Estimated minimum wide band EMB versus wavelength for A1-OM5 |
| 111 | E.4.2 Centre wavelength for A1-OM3 and A1-OM4 fibres E.4.3 Centre wavelength for A1-OM5 fibre Figure E.4 – Approximate position of DMD weightings relative to the EF boundaries of Equations (E.10) and (E.11) |
| 113 | Annex F (informative) Bandwidth nomenclature explanation Table F.1 – Bandwidth nomenclature explanation |
| 114 | Annex G (informative) Preliminary indications for items needing further study G.1 Effective modal bandwidth (EMB) at 1 300 nm G.2 Scaling of EMB with DMD |
| 116 | Annex H (informative) Applications and cabling categories supported by A1 fibres Table H.1 – Some standardised applications supported by A1-OM2, A1-OM3, A1-OM4, A1-OM5 fibres and in some cases A1-OM1 fibres |
| 117 | Annex I (informative) 1-Gigabit, 10-Gigabit, 25-Gigabit, 40-Gigabit and100-Gigabit Ethernet applications |
| 118 | Table I.1 – Summary of 1 Gb/s, 10 Gb/s, 25 Gb/s, 40 Gb/s and 100 Gb/s Ethernet requirements and capabilities |
| 123 | Bibliography |
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BS EN IEC 60793-2-10:2019
Optical fibres – Product specifications. Sectional specification for category A1 multimode fibres Published By Publication…
