This part of the IEC 61755 defines the dimensional limits of an optical interface for reference connectors necessary to meet specific requirements for fibre-to-fibre interconnection of non-angled polished multimode reference connectors with cylindrical ferrules intended to be used for attenuation measurements in the field or factory.<\/p>\n
One grade of reference connector is defined in this document. The reference connector is terminated to selected IEC 60793-2-10:2015 A1a fibre. The geometrical dimensions and tolerances of the specified reference connector 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
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\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 | ||||||
| 7<\/td>\n | English CONTENTS <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 4 Performance grade 5 Description Tables Table 1 \u2013 Multimode attenuation grade at 850 nm <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 6 Criteria for a fit within the performance grade <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 7 Use of selected fibre in reference-grade connectors 8 Calculated attenuation of random mated grade 1 reference connectors Figures Figure 1 \u2013 Geometrical requirements for fibre core location after terminationrelative to the ferrule axis and the connector plug key Table 2 \u2013 Optical interface parameter values for 1,25 mm and 2,5 mmdiameter PC ferrules for MM reference connectors <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 9 Reference adapter 10 Attenuation measurement uncertainty contribution Figure 2 \u2013 Calculated attenuation of random matedgrade 1 reference connectors <\/td>\n<\/tr>\n | ||||||
| 15<\/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 1reference connectors resulting from lateral offset, NA and CD mismatch <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | A.3 Overall uncertainty Table A.1 \u2013 Evaluation of the uncertainty contributiondue to measurement conditions <\/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 – Connection of 50 \u03bcm core diameter multimode physically contacting fibres. Non-angled for reference connector application, at wavelength of 850 nm using selected A1a fibre only<\/b><\/p>\n |