1、 IEC 60793-2-40Edition 3.0 2009-04INTERNATIONAL STANDARD Optical fibres Part 2-40:Product specifications Sectional specification for category A4 multimode fibres IEC 60793-2-40:2009(E)LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.THI
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9、 03 00 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.IEC 60793-2-40Edition 3.0 2009-04INTERNATIONAL STANDARD Optical fibres Part 2-40:Product specifications Sectional specification for category A4 multimode fibres INTERNATIONAL ELECT
10、ROTECHNICAL COMMISSION VICS 33.180.10 PRICE CODEISBN 2-8318-1037-2 Registered trademark of the International Electrotechnical Commission LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 60793-2-40 IEC:2009(E)CONTENTS FOREWORD.4 1 Scop
11、e and object.6 2 Normative references.7 3 Specifications.7 3.1 Dimensional requirements.7 3.2 Mechanical requirements.8 3.2.1 Tensile load test.9 3.3 Transmission requirements.10 3.4 Environmental requirements.11 3.4.1 Mechanical environmental requirement.12 3.4.2 Transmission environmental requirem
12、ents.12 Annex A(normative)Family specifications for A4a multimode fibres.14 Annex B(normative)Family specifications for A4b multimode fibres.16 Annex C(normative)Family specifications for A4c multimode fibres.18 Annex D(normative)Family specifications for A4d multimode fibres.20 Annex E(normative)Fa
13、mily specifications for A4e multimode fibres.22 Annex F(normative)Family specifications for A4f multimode fibres.24 Annex G(normative)Family specifications for A4g multimode fibres.26 Annex H(normative)Family specifications for A4h multimode fibres.28 Annex I(normative)Mode Scramblers for A4a to A4d
14、 Fibres(based on IEC 794-1-1,1999).30 Annex J(informative)Additional transmission requirements for A4a multimode fibres for wavelengths below 650 nm.31 Figure 1 Tensile Load versus Elongation for a plastic optical fibre.10 Figure I.1 Mode Scrambler for A4 fibre.30 Table 1 Characteristics and applica
15、tions of category A4 Fibres.6 Table 2 Dimensional attributes and measurement methods.8 Table 3 Requirements common to all category A4 fibres.8 Table 4 Additional attributes required in A4a though A4e family specifications.8 Table 5 Additional attributes required in A4f through A4h family specificati
16、ons.8 Table 6 Mechanical attributes and test methods.9 Table 7 Requirements common to category A4 fibres.9 Table 8 Additional attributes required in family specification for categories A4a through A4e fibres.9 Table 9 Additional attributes required in family specification for categories A4f through A4h fibres.9 Table 10 Transmission attributes and measurement methods.11 Table 11 Attributes required in family specifications.11 Table 12 Environmental exposure tests.11 Table 13 Attributes measured.