IEC 61300-3-3:2009

Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-3: Examinations and measurements - Active monitoring of changes in attenuation and return loss

IEC 61300-3-3:2009 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 instances, it is more efficient to monitor attenuation and return loss at the same time. This edition constitutes a minor revision. The change with respect to the previous edition is the structure of the document.

Dispositifs d'interconnexion et composants passifs à fibres optiques - Méthodes fondamentales d'essais et de mesures - Partie 3-3: Examens et mesures - Contrôle actif des variations de l'affaiblissement et de l'affaiblissement de réflexion

La CEI 61300-3-3:2009 décrit la procédure destinée à contrôler les modifications d'affaiblissement et/ou de l'affaiblissement de réflexion d'un composant ou d'un dispositif d'interconnexion, lorsqu'il est soumis à un essai d'environnement ou mécanique. Une telle procédure est communément désignée contrôle actif. Dans de nombreux cas, il est plus efficace de contrôler l'affaiblissement et l'affaiblissement de réflexion en même temps. Cette édition constitue une révision mineure. Les modifications par rapport à l'édition précédentes du document sont relatives à la structure du document.

General Information

• Status: Published
• Publication Date: 09-Mar-2009
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 33.180.20 - Fibre optic interconnecting devices
• Technical Committee: SC 86B - Fibre optic interconnecting devices and passive components
• Drafting Committee: WG 4 - TC 86/SC 86B/WG 4
• Current Stage: PPUB - Publication issued
• Start Date: 15-Apr-2009
• Completion Date: 10-Mar-2009

Relations

• Revises: IEC 61300-3-3:2003 - 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
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 61300-3-3 ®
Edition 3.0 2009-03
INTERNATIONAL
STANDARD
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
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester.
If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,
please contact the address below or your local IEC member National Committee for further information.

IEC Central Office
3, rue de Varembé
CH-1211 Geneva 20
Switzerland
Email: [e-mail]
Web: www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.
ƒ Catalogue of IEC publications: www.iec.ch/searchpub
The IEC on-line Catalogue enables you to search by a variety of criteria (reference number, text, technical committee,…).
It also gives information on projects, withdrawn and replaced publications.
ƒ IEC Just Published: www.iec.ch/online_news/justpub
Stay up to date on all new IEC publications. Just Published details twice a month all new publications released. Available
on-line and also by email.
ƒ Electropedia: www.electropedia.org
The world's leading online dictionary of electronic and electrical terms containing more than 20 000 terms and definitions
in English and French, with equivalent terms in additional languages. Also known as the International Electrotechnical
Vocabulary online.
ƒ Customer Service Centre: www.iec.ch/webstore/custserv
If you wish to give us your feedback on this publication or need further assistance, please visit the Customer Service
Centre FAQ or contact us:
Email: [e-mail]
Tel.: [phone]
Fax: [phone]
IEC 61300-3-3 ®
Edition 3.0 2009-03
INTERNATIONAL
STANDARD
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
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
R
ICS 33.180.20 ISBN 978-2-88910-496-3
– 2 – 61300-3-3 © IEC:2009(E)
CONTENTS
FOREWORD.4
1 Scope.6
2 Normative references .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 joints.9
4.1.9 Data acquisition.9
4.1.10 Monitor sample.9
4.1.11 Reference fibre.10
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
5.1.2 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 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 Attenuation – 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(E) – 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 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 – Method 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 reflection 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(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
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

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 concerning 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)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental 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 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 international 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 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 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 attach 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 fees) 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 publication.
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 61300-3 has been prepared by subcommittee 86B: Fibre optic
interconnecting devices and passive components, of IEC 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(E) – 5 –
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 above table.
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 test and measurement procedures,,
can be found on the IEC
...

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 d'interconnexion et composants passifs à fibres optiques –
Méthodes fondamentales d'essais et de mesures –
Partie 3-3: Examens et mesures – Contrôle actif des variations de
l'affaiblissement et de l'affaiblissement de réflexion

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester.
If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,
please contact the address below or your local IEC member National Committee for further information.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite ni
utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et les
microfilms, sans l'accord écrit de la CEI ou du Comité national de la CEI du pays du demandeur.
Si vous avez des questions sur le copyright de la CEI ou si vous désirez obtenir des droits supplémentaires sur cette
publication, utilisez les coordonnées ci-après ou contactez le Comité national de la CEI de votre pays de résidence.

IEC Central Office Tel.: [phone]
3, rue de Varembé Fax: [phone]
CH-1211 Geneva 20 [e-mail]
Switzerland www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.

Useful links:
IEC publications search - www.iec.ch/searchpub Electropedia - www.electropedia.org
The advanced search enables you to find IEC publications The world's leading online dictionary of electronic and
by a variety of criteria (reference number, text, technical electrical terms containing more than 30 000 terms and
committee,…). definitions in English and French, with equivalent terms in
It also gives information on projects, replaced and additional languages. Also known as the International
withdrawn publications. Electrotechnical Vocabulary (IEV) on-line.

IEC Just Published - webstore.iec.ch/justpublished Customer Service Centre - webstore.iec.ch/csc
Stay up to date on all new IEC publications. Just Published If you wish to give us your feedback on this publication
details all new publications released. Available on-line and or need further assistance, please contact the
also once a month by email. Customer Service Centre: [e-mail].

A propos de la CEI
La Commission Electrotechnique Internationale (CEI) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications CEI
Le contenu technique des publications de la CEI est constamment revu. Veuillez vous assurer que vous possédez
l’édition la plus récente, un corrigendum ou amendement peut avoir été publié.

Liens utiles:
Recherche de publications CEI - www.iec.ch/searchpub Electropedia - www.electropedia.org
La recherche avancée vous permet de trouver des Le premier dictionnaire en ligne au monde de termes
publications CEI en utilisant différents critères (numéro de électroniques et électriques. Il contient plus de 30 000
référence, texte, comité d’études,…). termes et définitions en anglais et en français, ainsi que
Elle donne aussi des informations sur les projets et les les termes équivalents dans les langues additionnelles.
publications remplacées ou retirées. Egalement appelé Vocabulaire Electrotechnique
International (VEI) en ligne.
Just Published CEI - webstore.iec.ch/justpublished
Service Clients - webstore.iec.ch/csc
Restez informé sur les nouvelles publications de la CEI.
Just Published détaille les nouvelles publications parues. Si vous désirez nous donner des commentaires sur
Disponible en ligne et aussi une fois par mois par email. cette publication ou si vous avez des questions
contactez-nous: [e-mail].
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 d'interconnexion et composants passifs à fibres optiques –

Méthodes fondamentales d'essais et de mesures –

Partie 3-3: Examens et mesures – Contrôle actif des variations de

l'affaiblissement et de l'affaiblissement de réflexion

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
R
CODE PRIX
ICS 33.180.20 ISBN 978-2-88912-853-2

– 2 – 61300-3-3  IEC:2009
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 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 joints . 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
5.1.2 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 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 Attenuation – 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 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 – Method 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 reflection 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 –

Part 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 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,
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, governmental 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
agre
...