1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-23437-9 SANS 60793-2-40:2009Edition 3IEC 60793-2-40:2009Edition 3SOUTH AFRICAN NATIONAL STANDARD Optical fibres Part 2-40: Product specifi
4、cations Sectional specification for category A4 multimode fibres This national standard is the identical implementation of IEC 60793-2-40:2009 and is adopted with the permission of the International Electrotechnical Commission. Published by SABS Standards Division 1 Dr Lategan Road Groenkloof Privat
5、e Bag X191 Pretoria 0001Tel: +27 12 428 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS SANS 60793-2-40:2009 Edition 3 IEC 60793-2-40:2009 Edition 3 Table of changes Change No. Date Scope National foreword This South African standard was approved by National Committee SABS TC 79, Fibre optics, in acco
6、rdance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was published in December 2009. This SANS document supersedes SANS 60793-2-40:2006 (edition 2). IEC 60793-2-40Edition 3.0 2009-04INTERNATIONAL STANDARD Optical fibres Part 2
7、-40: Product specifications Sectional specification for category A4 multimode fibres INTERNATIONAL ELECTROTECHNICAL COMMISSION VICS 33.180.10 PRICE CODEISBN 2-8318-1037-2 Registered trademark of the International Electrotechnical Commission SANS 60793-2-40:2009This s tandard may only be used and pri
8、nted by approved subscription and freemailing clients of the SABS . 2 60793-2-40 IEC:2009(E) CONTENTS FOREWORD.4 1 Scope and object6 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
9、3.4 Environmental requirements11 3.4.1 Mechanical environmental requirement12 3.4.2 Transmission environmental requirements.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 specif
10、ications for A4c multimode fibres 18 Annex D (normative) Family specifications for A4d multimode fibres20 Annex E (normative) Family specifications for A4e multimode fibres 22 Annex F (normative) Family specifications for A4f multimode fibres .24 Annex G (normative) Family specifications for A4g mul
11、timode fibres26 Annex H (normative) Family specifications for A4h multimode fibres28 Annex I (normative) Mode Scramblers for A4a to A4d 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
12、Tensile Load versus Elongation for a plastic optical fibre. 10 Figure I.1 Mode Scrambler for A4 fibre 30 Table 1 Characteristics and applications of category A4 Fibres6 Table 2 Dimensional attributes and measurement methods8 Table 3 Requirements common to all category A4 fibres 8 Table 4 Additional
13、attributes required in A4a though A4e family specifications.8 Table 5 Additional attributes required in A4f through A4h family specifications.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 specif
14、ication 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
15、tests11 Table 13 Attributes measured 12 Table 14 Requirement for tensile strength12 SANS 60793-2-40:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .60793-2-40 IEC:2009(E) 3 Table 15 Requirement for change in attenuation for A4a through A4
16、e fibre 12 Table 16 Requirement for change in attenuation for A4f through A4h fibre .13 Table A.1 Dimensional requirements specific to A4a fibres 14 Table A.2 Mechanical requirements specific to A4a fibres14 Table A.3 Transmission requirements specific to A4a fibres.15 Table B.1 Dimensional requirem
17、ents specific to A4b fibres 16 Table B.2 Mechanical requirements specific to A4b fibres16 Table B.3 Transmission requirements specific to A4b fibres.17 Table C.1 Dimensional requirements specific to A4c fibres 18 Table C.2 Mechanical requirements specific to A4c fibres18 Table C.3 Transmission requi
18、rements specific to A4c fibres.19 Table D.1 Dimensional requirements specific to A4d fibres 20 Table D.2 Mechanical requirements specific to A4d fibres20 Table D.3 Transmission requirements specific to A4d fibres 21 Table E.1 Dimensional requirements specific to A4e fibres 22 Table E.2 Mechanical re
19、quirements specific to A4e fibres22 Table E.3 Transmission requirements specific to A4e fibres.23 Table F.1 Dimensional requirements specific to A4f fibres .24 Table F.2 Mechanical requirements specific to A4f fibres.24 Table F.3 Transmission requirements specific to A4f fibres25 Table G.1 Dimension
20、al requirements specific to A4g fibres26 Table G.2 Mechanical requirements specific to A4g fibres .26 Table G.3 Transmission requirements specific to A4g fibres 27 Table H.1 Dimensional requirements specific to A4h fibres 28 Table H.2 Mechanical requirements specific to A4h fibres28 Table H.3 Transm
21、ission requirements specific to A4h fibres 29 Table I.1 Mode Scrambler parameters .30 Table J.1 Transmission requirements specific to A4a.2 fibre 31 SANS 60793-2-40:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS . 4 60793-2-40 IEC:2009(E)
22、 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ OPTICAL FIBRES Part 2-40: Product specifications Sectional specification for category A4 multimode fibres FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechni
23、cal committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
24、Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, gove
25、rnmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions
26、or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for internation
27、al use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to
28、 promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly
29、indicated in the latter. 5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall at
30、tach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fe
31、es) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publicat
32、ion. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60793-2-40 has been prepared by subcommittee 86A: Fibres an
33、d cables, of IEC technical committee 86: Fibre optics. This third edition cancels and replaces the second edition published in 2006 and constitutes a technical revision which defines an enhanced A4a fibre named A4a.2 while the existing A4a fibre has been renamed A4a.1. The text of this standard is b
34、ased on the following documents: CDV Report on voting 86A/1237/CDV 86A/1264/RVC Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. SAN
35、S 60793-2-40:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .60793-2-40 IEC:2009(E) 5 A list of all parts of the IEC 60793 series, published under the general title Optical fibres, can be found on the IEC website. The committee has decide
36、d that the contents of this publication will remain unchanged until the maintenance result date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or
37、 amended. A bilingual version of this publication may be issued at a later date. SANS 60793-2-40:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS . 6 60793-2-40 IEC:2009(E) OPTICAL FIBRES Part 2-40: Product specifications Sectional specific
38、ation for category A4 multimode fibres 1 Scope This part of IEC 60793-2 is applicable to optical fibre categories A4a, A4b, A4c, A4d, A4e, A4f, A4g and A4h. These fibres have a plastic core and plastic cladding and may have step-index, multi-step index, or graded-index profiles. The fibres are used
39、in information transmission equipment and optical fibre cables. Table 1 summarizes some of the salient characteristics and applications of these fibres. Table 1 Characteristics and applications of category A4 Fibres A4a A4b A4c A4d A4e A4f A4g A4h Core diameter (m) See Note 1 See Note 1 See Note 1 S
40、ee Note 1 500 200 120 62,5 Cladding diameter (m) 1000 750 500 1000 750 490 490 245 Numerical aperture 0,50t 0,50t0,50t0,30t0,25t0,190e 0,190e0,190eOperating wavelength(s) (nm) 650 See Note 2 650 650 650 650 650, 850, 1300 650, 850, 1300 850, 1300 Applications Digital audio interface, automobile, ind
41、ustrial and sensor Data transmission industrial and sensor sensor Digital audiovisual interface and data transmission Digital audiovisual interface and data transmission Industrial and mobile; compatible with A3 transmission equipment Data transmission Data transmission; primarily used in ribbon str
42、uctures NOTE 1 Typically 15m to 35 m smaller than the cladding diameter. NOTE 2 Other potential wavelengths for A4a fibre are described in Annex J. tTheoretical. eMeasured effective. In addition to the applications shown in Table 1, other applications for A4 fibres include, but are not restricted to
43、, the following: support for short reach high bit-rate systems in telephony, distribution and local networks, carrying data, voice and/or video services and on-premises intrabuilding and interbuilding fibre installations, including LANs, PBXs, video, various multiplexing uses, and miscellaneous rela
44、ted uses, such as consumer electronics and industrial and mobile networks. Three types of requirements apply to A4 fibres: general requirements, as defined in IEC 60793-2; specific requirements common to category A4 multimode fibres covered in this standard and that are given in Clause 3; particular
45、 requirements applicable to individual fibre types or specific applications and that are defined in this standard in the normative family specification annexes. SANS 60793-2-40:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .60793-2-40 IE
46、C:2009(E) 7 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60068-1, E
47、nvironmental testing Part 1: General and guidance IEC 60793-1 (all parts), Optical fibres Part 1: Measurement methods and test procedures IEC 60793-1-20:2001, Optical fibres Part 1-20: Measurement methods and test procedures Fibre geometry IEC 60793-1-22:2001, Optical fibres Part 1-22: Measurement m
48、ethods and test procedures Length measurement IEC 60793-1-40:2001, Optical fibres Part 1-40: Measurement methods and test procedures Attenuation IEC 60793-1-41:2001, Optical fibres Part 1-41: Measurement methods and test procedures Bandwidth IEC 60793-1-42:2007, Optical fibres Part 1-42: Measurement
49、 methods and test procedures Chromatic dispersion IEC 60793-1-43:2001, Optical fibres Part 1-43: Measurement methods and test procedures Numerical aperture IEC 60793-1-46:2001, Optical fibres Part 1-46: Measurement methods and test procedures Monitoring of changes in optical transmittance IEC 60793-1-47: 2009, Optical fibres Part 1-47: Measurement methods and test procedures Macrobending
