BS EN IEC 60793-2-50:2019 – TC:2020 Edition
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Tracked Changes. Optical fibres – Product specifications. Sectional specification for class B single-mode fibres
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 105 |
IEC 60793-2-50:2018 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 60793-2-50: 2018 is applicable to optical fibre categories B-652, B-653, B-654, B-655, B 656 and B-657. A map illustrating the connection of IEC designations to ITU-T designations is shown in Table 1. These fibres are used or can be incorporated in information transmission equipment and optical fibre cables. Three types of requirements apply to these fibres: • general requirements, as defined in IEC 60793-2; • specific requirements common to the class B single-mode fibres covered in this document and which are given in Clause 5; • particular requirements applicable to individual fibre categories or specific applications, which are defined in Annexes A to F. For some fibre categories (shown in the relevant family specifications), there are sub-categories that are distinguished on the basis of difference in transmission attribute specifications. The designations for these sub-categories are documented in the individual family specifications. The sixth edition cancels and replaces the fifth edition published in 2015. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) Introduction of a revised naming convention which better matches with those found in ITU T Recommendations G.652, G.653, G.654, G.655, G.656, and G.657. These changes are outlined in the scope of this document along with a cross reference table for the new names. Annexes have been rearranged to improve clarity based on the new naming; b) Further details on the requirements for 200 micron coated single-mode fibre; c) Harmonization with the following ITU-T Recommendations published in November 2016: G.652, G.654, G.657 including revised chromatic dispersion specifications, new categories and new application spaces for these fibre categories; d) Descriptions of fibre types have been added to the titles of Annexes A to F. Keywords: information transmission equipment, optical fibre cables
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 61 | undefined |
| 64 | Annex ZA(normative)Normative references to international publicationswith their corresponding European publications |
| 66 | English CONTENTS |
| 69 | FOREWORD |
| 71 | 1 Scope |
| 72 | 2 Normative references Tables Table 1 – Map of IEC designation to ITU-T Recommendations andIEC 60793-2-50:2015 designation |
| 73 | 3 Terms and definitions |
| 74 | 4 Abbreviated terms and symbols 5 Specifications 5.1 General 5.2 Dimensional requirements |
| 75 | 5.3 Mechanical requirements Table 2 – Dimensional attributes and measurement methods Table 3 – Dimensional requirements common to all category B fibres Table 4 – Mechanical attributes and test methods |
| 76 | 5.4 Transmission requirements Table 5 – Mechanical requirements common to all class B fibres Table 6 – Transmission attributes and measurement methods |
| 77 | 5.5 Environmental requirements 5.5.1 General Table 7 – Transmission, requirements common to all class B fibres Table 8 – Additional transmission attributes required in the family specifications Table 9 – Environmental exposure tests Table 10 – Attributes measured in environmental exposure tests |
| 78 | 5.5.2 Optical environmental requirements – Attenuation 5.5.3 Mechanical environmental requirements Table 11 – Change in attenuation for environmental tests Table 12 – Coating strip force for environmental tests |
| 79 | Table 13 – Tensile strength for environmental tests Table 14 – Stress corrosion susceptibility for environmental tests |
| 80 | Annexes Annex A (normative) Family specification for category B-652 Dispersion unshifted single-mode fibres A.1 General A.2 Dimensional requirements Table A.1 – Dimensional requirements specific to category B-652.B fibres |
| 81 | A.3 Mechanical requirements A.4 Transmission requirements Table A.2 – Dimensional requirements specific to category B-652.D fibres Table A.3 – Mechanical requirements specific to category B-652 fibres |
| 82 | Table A.4 – Transmission requirements specific to sub-category B-652.B fibres Table A.5 – Transmission requirements specific to sub-category B-652.D Fibres |
| 83 | A.5 Hydrogen ageing for sub-category B-652.D A.6 Environmental requirements Table A.6 – Chromatic dispersion properties for sub-category B-652.D fibres |
| 84 | Annex B (normative) Family specification for category B-653 Dispersion shifted single-mode fibres B.1 General B.2 Dimensional requirements Table B.1 – Dimensional requirements specific to category B-653 fibres |
| 85 | B.3 Transmission requirements B.3.1 General B.3.2 Chromatic dispersion coefficient requirement for sub-category B-653.A fibres Table B.2 – Mechanical requirements specific to category B-653 fibres Table B.3 – Transmission requirements specific to category B-653 fibres |
| 86 | B.3.3 Chromatic dispersion coefficient requirement for sub-category B-653.B fibres B.4 Environmental requirements |
| 87 | Annex C (normative) Family specification for category B-654 cut-off shifted single-mode fibres C.1 General C.2 Dimensional requirements C.3 Mechanical requirements Table C.1 – Dimensional requirements specific to category B-654 fibres |
| 88 | Table C.2 – Mechanical requirements specific to category B-654 fibres Table C.3 – Transmission requirements specific to category B-654 fibres |
| 89 | C.4 Chromatic dispersion parameters for B-654.E fibres C.5 Environmental requirements |
| 90 | Annex D (normative) Family specification for category B-655 non-zero dispersion shifted single-mode fibres D.1 General D.2 Dimensional requirements D.3 Mechanical requirements Table D.1 – Dimensional requirements specific to category B-655 fibres |
| 91 | D.4 Transmission requirements D.4.1 General D.4.2 Chromatic dispersion coefficient limits for sub-category B-655.C fibres Table D.2 – Mechanical requirements specific to category B-655 fibres Table D.3 – Transmission requirements specific to category B-655 fibres |
| 92 | D.4.3 Chromatic dispersion coefficient limits for sub-category B-655.D fibres D.4.4 Chromatic dispersion coefficient limits for sub-category B-655.E fibres D.5 Environmental requirements |
| 93 | Annex E (normative) Family specification for category B-656 Wideband non-zero dispersion shifted single-mode fibres E.1 General E.2 Dimensional requirements E.3 Mechanical requirements Table E.1 – Dimensional requirements specific to category B-656 fibres |
| 94 | E.4 Transmission requirements E.4.1 General E.4.2 Chromatic dispersion coefficient for category B-656 fibres Table E.2 – Mechanical requirements specific to category B-656 fibres Table E.3 – Transmission requirements specific to category B-656 fibres |
| 95 | E.5 Environmental requirements |
| 96 | Annex F (normative) Family specification for category B-657 Bending loss insensitive single-mode fibres F.1 General F.2 Dimensional requirements |
| 97 | F.3 Mechanical requirements F.4 Transmission requirements Table F.1 – Dimensional requirements specific to category B-657 fibres Table F.2 – Mechanical requirements specific to category B-657 fibres |
| 98 | Table F.3 – Transmission requirements specific to category B-657 fibres |
| 99 | F.5 Environmental requirements |
| 100 | Annex G (informative) System design information for category B-655 non-zero disperion shifted single-mode fibres G.1 General G.2 One standard deviation limits for sub-category B-655.D fibres Table G.1 – Examples for λmin = 1 530 nm and λmax = 1 565 nm |
| 101 | G.3 One standard deviation limits for sub-category B-655.E fibres Figures Figure G.1 – Sub-category B-655.D chromatic dispersion coefficient limits |
| 102 | Figure G.2 – Sub-category B-655.E chromatic dispersion coefficient limits |
| 103 | Bibliography |
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BS EN IEC 60793-2-50:2019
Optical fibres – Product specifications. Sectional specification for class B single-mode fibres Published By Publication…
