IEC 63267-2-2:2024 defines the dimensional limits of an optical interface for reference connections necessary to meet specific requirements for fibre-to-fibre interconnection of non-angled and angled polished multimode reference connectors intended to be used for attenuation measurements in the field or factory. Several grades of reference connections are defined in this document. The multimode reference connections are terminated to restricted IEC 60793-2-10 A1-OM2b to A1-OM5b fibre at the 850 nm band only. The geometrical dimensions and tolerances of the specified reference connections have been developed primarily to limit the variation in measured attenuation between multiple sets of two reference connectors, and therefore to limit the variation in measured attenuation between randomly chosen reference connectors when mated with connectors in the field or factory.<\/p>\n
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| 2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
| 5<\/td>\n | Annex ZA (normative)Normative references to international publicationswith their corresponding European publications <\/td>\n<\/tr>\n | ||||||
| 6<\/td>\n | English CONTENTS <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 4 Performance grades 5 Description Tables Table 1 \u2013 Attenuation grades for multimode reference connections at 850 nm <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 6 Criteria for a fit within the performance grade 7 Attenuation measurement uncertainty contribution 8 Visual inspection Figures Figure 1 \u2013 Geometrical requirements for fibre core location after termination Table 2 \u2013 Lateral offset values for grade Rm reference connections <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | Table 3 \u2013 Visual requirements for multimode PC and APC polished connection <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | Annex A (informative)Multimode attenuation measurement uncertainty contribution A.1 General A.2 Sources of variability Figure A.1 \u2013 Attenuation measurement uncertainty contribution for Grade Rm1reference connections resulting from lateral offset, NA and CD mismatch <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | A.3 Overall uncertainty <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | Table A.1 \u2013 Evaluation of the uncertainty contribution due measurement conditions <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | Annex B (informative)Test limits for performance grade Bm connectorsagainst grade Rm reference connectors B.1 General B.2 Test limits Table B.1 \u2013 Performance grade test limits at 850 nm <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Fibre optic interconnecting devices and passive components. Connector optical interfaces for enhanced macro bend multimode fibres – Connection parameters of physically contacting 50 \u03bcm core diameter fibres. Non-angled and angled for reference connector applications<\/b><\/p>\n |