1、 IEC 61300-3-3 Edition 3.0 2009-03 INTERNATIONAL STANDARD NORME INTERNATIONALE Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 3-3: Examinations and measurements Active monitoring of changes in attenuation and return loss Dispositifs dinterconnex
2、ion et composants passifs fibres optiques Mthodes fondamentales dessais et de mesures Partie 3-3: Examens et mesures Contrle actif des variations de laffaiblissement et de laffaiblissement de rflexion IEC 61300-3-3:2009 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2009 IEC, Geneva, Switzerland
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16、e. Service Clients - webstore.iec.ch/csc Si vous dsirez nous donner des commentaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 61300-3-3 Edition 3.0 2009-03 INTERNATIONAL STANDARD NORME INTERNATIONALE Fibre optic interconnecting devices and passive components
17、 Basic test and measurement procedures Part 3-3: Examinations and measurements Active monitoring of changes in attenuation and return loss Dispositifs dinterconnexion et composants passifs fibres optiques Mthodes fondamentales dessais et de mesures Partie 3-3: Examens et mesures Contrle actif des va
18、riations de laffaiblissement et de laffaiblissement de rflexion INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE R ICS 33.180.20 PRICE CODE CODE PRIX ISBN 978-2-88912-853-2 Registered trademark of the International Electrotechnical Commission Marque dpose de la Co
19、mmission 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. 2 61300-3-3 IEC:2009 CONTENTS FOREWORD . 4 1 Scope . 6 2 Normative reference
20、s . 6 3 General description 6 3.1 Test method 6 3.2 Precautions . 7 4 Apparatus . 7 4.1 Methods 1, 2 and 3 7 4.1.1 General . 7 4.1.2 Source (S) . 7 4.1.3 Launch condition (E) 8 4.1.4 Monitoring equipment 8 4.1.5 Detector D . 9 4.1.6 Stress fixture . 9 4.1.7 Branching device BD . 9 4.1.8 Temporary jo
21、ints 9 4.1.9 Data acquisition . 9 4.1.10 Monitor sample 9 4.1.11 Reference fibre 9 4.2 Methods 4 and 5 11 4.2.1 General . 11 4.2.2 OTDR 11 4.2.3 Buffer fibre 11 4.2.4 Optical switches 11 5 Procedure 13 5.1 Monitoring attenuation and return loss of a single sample method 1 . 13 5.1.1 General . 13 5.1
22、.2 Attenuation monitoring method 1 13 5.1.3 Return loss monitoring method 1 14 5.2 Monitoring attenuation and return loss of multiple samples using a 1 N branching device method 2 . 14 5.2.1 General . 14 5.2.2 Attenuation monitoring method 2 14 5.2.3 Return loss monitoring method 2 14 5.3 Monitoring
23、 attenuation and return loss of multiple samples using two 1 N optical switches method 3 14 5.3.1 General . 14 5.3.2 Attenuation method 3 14 5.3.3 Return loss method 3 15 5.4 Bidirectional OTDR monitoring of attenuation and return loss of multiple samples method 4 16 5.4.1 General . 16 5.4.2 Attenua
24、tion method 4 16 5.4.3 Return loss method 4 18 5.5 Unidirectional OTDR monitoring of attenuation and return loss of multiple samples method 5 19 6 Details to be specified 19 61300-3-3 IEC:2009 3 6.1 Method 1 . 19 6.2 Methods 2 and 3 20 6.3 Methods 4 and 5 20 Figure 1 Method 1 Monitoring attenuation
25、and return loss of a single sample undergoing stress testing 10 Figure 2 Method 2 Monitoring attenuation and return loss of multiple samples using a 1 N branching device . 10 Figure 3 Method 3 Monitoring attenuation and return loss of multiple samples using two 1 N optical switches . 11 Figure 4 Met
26、hod 4 Bidirectional OTDR monitoring of attenuation and return loss of multiple samples . 12 Figure 5 Method 5 Unidirectional OTDR monitoring of attenuation and return loss of multiple samples . 13 Figure 6 Cut-back measurement location (transmission) 15 Figure 7 Typical OTDR trace caused by the refl
27、ection from a DUT . 17 Figure 8 Cut-back measurement location (OTDR) 18 Table 1 Example values for Rayleigh backscatter coefficient 19 4 61300-3-3 IEC:2009 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS BASIC TEST AND MEASUREMENT PROCEDURES Par
28、t 3-3: Examinations and measurements Active monitoring of changes in attenuation and return loss FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object o
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37、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) Attention is drawn to the possibility that so
38、me 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 61300-3 has been prepared by subcommittee 86B: Fibre optic interconnecting devices and passive components, of IE
39、C technical committee 86: Fibre optics. This third edition cancels and replaces the second edition published in 2003. This edition constitutes a minor revision. The change with respect to the previous edition is the structure of the document. 61300-3-3 IEC:2009 5 This bilingual version (2012-01) cor
40、responds to the monolingual English version, published in 2009-03. The text of this standard is based on the following documents: FDIS Report on voting 86B/2808/FDIS 86B/2830/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the ab
41、ove table. The French version of this standard has not been voted upon. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts of IEC 61300 series, published under the general title Fibre optic interconnecting devices and passive components Basic tes
42、t and measurement procedures, can be found on the IEC website. The committee has decided 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
43、date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. 6 61300-3-3 IEC:2009 FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS BASIC TEST AND MEASUREMENT PROCEDURES Part 3-3: Examinations and measurements Active monitoring of changes in attenuation a
44、nd return loss 1 Scope This part of IEC 61300 describes the procedure to monitor changes in attenuation and/or return loss of a component or an interconnecting device, when subjected to an environmental or mechanical test. Such a procedure is commonly referred to as active monitoring. In many instan
45、ces, it is more efficient to monitor attenuation and return loss at the same time. The procedure may be applied to measurements on single samples or to simultaneous measurements on multiple samples, both at single wavelengths and multiple wavelengths, by using branching devices and/or switches as ap
46、propriate. 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 61300-1, Fi
47、bre optic interconnecting devices and passive components Basic test and measurement procedures Part 1: General and guidance IEC 61300-3-1, Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 3-1: Examinations and measurements Visual examination IEC 6
48、1300-3-6, Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 3-6: Examinations and measurements Return loss IEC 61300-3-35, Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 3-35: Examinations and
49、measurements Fibre optic connector endface visual and automated inspection 3 General description 3.1 Test method The procedure describes a number of active monitoring measurement methods. Method 1 describes the situation where a single sample is subject to mechanical or environmental stress testing. Methods 2 and 3 describe methods
