1、 IEC 60794-2-31 Edition 2.0 2012-11 INTERNATIONAL STANDARD NORME INTERNATIONALE Optical fibre cables Part 2-31: Indoor cables Detailed specification for optical fibre ribbon cables for use in premises cabling Cbles fibres optiques Partie 2-31: Cbles intrieurs Spcification particulire pour les cbles
2、fibres optiques en ruban utiliss dans le cblage de locaux IEC60794-2-31:2012 colourinsideTHIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2012 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any me
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16、tions contactez-nous: csciec.ch. IEC 60794-2-31 Edition 2.0 2012-11 INTERNATIONAL STANDARD NORME INTERNATIONALE Optical fibre cables Part 2-31: Indoor cables Detailed specification for optical fibre ribbon cables for use in premises cabling Cbles fibres optiques Partie 2-31: Cbles intrieurs Spcifica
17、tion particulire pour les cbles fibres optiques en ruban utiliss dans le cblage de locaux INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE H ICS 33.180.10 PRICE CODE CODE PRIX ISBN 978-2-83220-437-5 Registered trademark of the International Electrotechnical Commis
18、sion Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. colourinside 2 60794-2-31 IEC:2012 CONTENTS FOREWO
19、RD . 3 1 Scope . 5 2 Normative references . 5 3 General requirements . 5 4 Particular requirements 6 Temperature cycling 6 4.1Transmission requirements 6 4.2Attenuation of cabled fibre . 6 4.2.1Fibre bandwidth requirements 7 4.2.2Bibliography 8 Table 1 Multimode maximum cable attenuation coefficient
20、 (dB/km) 6 Table 2 Single-mode maximum cable attenuation coefficient (dB/km) 7 Table 3 Minimum multimode fibre bandwidth (MHzkm) . 7 60794-2-31 IEC:2012 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ OPTICAL FIBRE CABLES Part 2-31: Indoor cables Detailed specification for optical fibre ribbon cables
21、for use in premises cabling FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions conce
22、rning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Thei
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24、osely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the rele
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30、es 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 publication. 9) Attent
31、ion 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 60794-2-31 has been prepared by subcommittee 86A: Fibres and cables, of I
32、EC technical committee 86: Fibre optics. This second edition cancels and replaces the first edition published in 2005. It constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: incorporation of the OM4 cabled fibre pe
33、rformance category; incorporation of the OS2 cabled fibre performance category; incorporation of the B6_a1 and B6_a2 fibre categories as per IEC 60793-2-50. 4 60794-2-31 IEC:2012 The text of this standard is based on the following documents: FDIS Report on voting 86A/1468/FDIS 86A/1484/RVD Full info
34、rmation 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. A list of all the parts in the IEC 60794 series, published under the general title Optical f
35、ibre cables, can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the stability 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
36、 be reconfirmed, withdrawn, replaced by a revised edition, or amended. IMPORTANT The colour inside logo on the cover page of this publication indicates that it contains colours which are considered to be useful for the correct understanding of its contents. Users should therefore print this document
37、 using a colour printer. 60794-2-31 IEC:2012 5 OPTICAL FIBRE CABLES Part 2-31: Indoor cables Detailed specification for optical fibre ribbon cables for use in premises cabling 1 Scope This part of the IEC 60794 series presents the detailed requirements specific to indoor optical fibre ribbon cables
38、to ensure compatibility with ISO/IEC 11801. The requirements of the family specification IEC 60794-2-30 are applicable to cables covered by this standard. The particular requirements detailed in Clause 4 either define a specific option relative to the requirements of IEC 60794-2-30 or define additio
39、nal requirements. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (i
40、ncluding any amendments) applies. NOTE They complete the normative references already listed in the generic specification (IEC 60794-1-11 1and IEC 60794-1-2) and in the sectional specification (IEC 60794-2 2) or in the family specification (IEC 60794-2-30). IEC 60793-2-10:2011, Optical fibres Part 2
41、10: Product specifications Sectional specification for category A1 multimode fibres IEC 60793-2-50:2008, Optical fibres Part 2-50: Product specifications Sectional specification for class B single-mode fibres IEC 60794-1-2, Optical fibre cables Part 1-2: Generic specification Basic optical cable te
42、st procedures IEC 60794-2-30:2008, Optical fibre cables Part 2-30: Indoor cables Family specification for ribbon cables ISO/IEC 11801, Information technology Generic cabling for customers premises 3 General requirements The cable shall comply with the family specification (IEC 60794-2-30) and meet t
43、he requirements that are defined in it. The optical fibre contained in the cables which are covered by this standard shall comply with one of the following standards and meet the normative requirements defined within them as applicable: IEC 60793-2-50:2008, Annex A (Single-mode B1.1 fibre) 1Numbers
44、in square brackets refer to the Bibliography 6 60794-2-31 IEC:2012 IEC 60793-2-50:2008, Annex C (Single-mode B1.3 fibre) IEC 60793-2-50:2008, Annex G (Single-mode B6_a1 and B6_a2 fibre) IEC 60793-2-10:2011, Annex A (Multimode A1a.1, 50 m core fibre) IEC 60793-2-10:2011, Annex A (Multimode A1a.2, 50
45、m core fibre) IEC 60793-2-10:2011, Annex A (Multimode A1a.3, 50 m core fibre) IEC 60793-2-10:2011, Annex B (Multimode A1b, 62,5 m core fibre) To ensure compatibility with ISO/IEC 11801, optical performance level requirements are presented in terms of the performance classification codes for cabled o
46、ptical fibre as follows: OS1 Single-mode fibre, categories B1.1, B1.3 or sub-categories B6_a1 and B6_a2; OS2 Single-mode fibre, category B1.3 or sub-categories B6_a1 and B6_a2 OM1 Multimode fibre, model A1a.1 or sub-category;A1b OM2 Multimode fibre, model A1a.1 or sub-category;A1b; OM3 Multimode fib
47、re, model A1a.2; OM4 Multimode fibre, model A1a.3. NOTE These codes are informative from the perspective of the requirements defined in this detailed specification. 4 Particular requirements Temperature cycling 4.1The cable shall meet the requirement of IEC 60794-2-30:2008, Table 2, Option c (20 C t
48、o +60 C). The test shall be performed on a 50 m specimen. No attenuation changes shall be allowed during the test (see IEC 60794-1-2 for definition of “no change in attenuation). Transmission requirements 4.2Attenuation of cabled fibre 4.2.1Depending on the fibre category, the attenuation coefficien
49、t of the cabled fibre shall be less than the maximum values in Table 1 for the multimode fibres and less than the maximum values in Table 2 for single-mode fibres for the wavelengths listed in the table. The fibre category shall be agreed between customer and supplier. Table 1 Multimode maximum cable attenuation coefficient (dB/km) Fibre At
