EN 62005-1:2001

SLOVENSKI STANDARD
01-september-2002
Reliability of fibre optic interconnecting devices and passive components - Part 1:
Introductory guide and definitions (IEC 62005-1:2001)
Reliability of fibre optic interconnecting devices and passive components -- Part 1:
Introductory guide and definitions
Zuverlässigkeit von LWL-Verbindungselementen und passiven Bauelementen -- Teil 1:
Einführender Leitfaden und Definitionen
Fiabilité des dispositifs d'interconnexion et des composants passifs à fibres optiques --
Partie 1: Guide d'introduction et définitions
Ta slovenski standard je istoveten z: EN 62005-1:2001
ICS:
33.180.20 3RYH]RYDOQHQDSUDYH]D Fibre optic interconnecting
RSWLþQDYODNQD devices
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 62005-1
NORME EUROPÉENNE
EUROPÄISCHE NORM June 2001
ICS 33.180.20
English version
Reliability of fibre optic interconnecting devices and passive components
Part 1: Introductory guide and definitions
(IEC 62005-1:2001)
Fiabilité des dispositifs d'interconnexion et Zuverlässigkeit von
des composants passifs à fibres optiques LWL-Verbindungselementen und
Partie 1: Guide d'introduction et définitions passiven Bauelementen
(CEI 62005-1:2001) Teil 1: Einführender Leitfaden und
Definitionen
(IEC 62005-1:2001)
This European Standard was approved by CENELEC on 2001-05-01. CENELEC members are bound to
comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and
notified to the Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,
Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway,
Portugal, Spain, Sweden, Switzerland and United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2001 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62005-1:2001 E
Foreword
The text of document 86B/1437/FDIS, future edition 1 of IEC 62005-1, prepared by SC 86B, Fibre
optic interconnecting devices and passive components, of IEC TC 86, Fibre optics, was submitted to
the IEC-CENELEC parallel vote and was approved by CENELEC as EN 62005-1 on 2001-05-01.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2002-02-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2004-05-01
Annexes designated "normative" are part of the body of the standard.
In this standard, annex ZA is normative.
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 62005-1:2001 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 60721-3-3 NOTE: Harmonized as EN 60721-3-3:1995 (not modified).
IEC 60721-3-4 NOTE: Harmonized as EN 60721-3-4:1995 (not modified).
IEC 61300-2-24 NOTE: Harmonized as EN 61300-2-24:2000 (not modified).
__________
- 3 - EN 62005-1:2001
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
This European Standard incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions of any
of these publications apply to this European Standard only when incorporated in it by amendment or
revision. For undated references the latest edition of the publication referred to applies (including
amendments).
NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
Publication Year Title EN/HD Year
IEC 60050-191 1990 International Electrotechnical --
Vocabulary (IEV)
Chapter 191: Dependability and quality
of service
IEC 61300 Series Fibre optic interconnecting devices and EN 61300 Series
passive components - Basic test and
measurement procedures
NORME
CEI
INTERNATIONALE IEC
62005-1
INTERNATIONAL
Première édition
STANDARD
First edition
2001-03
Fiabilité des dispositifs d'interconnexion
et des composants passifs à fibres optiques –
Partie 1:
Guide d'introduction et définitions
Reliability of fibre optic interconnecting devices
and passive components –
Part 1:
Introductory guide and definitions
© IEC 2001 Droits de reproduction réservés ⎯ Copyright - all rights reserved
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utilisée sous quelque forme que ce soit et par aucun procédé, any form or by any means, electronic or mechanical,
électronique ou mécanique, y compris la photocopie et les including photocopying and microfilm, without permission in
microfilms, sans l'accord écrit de l'éditeur. writing from the publisher.
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62005-1 © IEC:2001 – 3 –
CONTENTS
Page
FOREWORD . 5
INTRODUCTION .9
Clause
1 Scope . 11
2 Normative references . 11
3 Overall view of the parts comprising IEC 62005 . 11
4 Reliability approach . 13
5 Definitions and terminology, symbols and abbreviations. 15
5.1 Definitions and terminology . 15
5.2 Symbols and abbreviations. 27
6 Programs leading to a reliable manufactured product. 27
6.1 New product family. 29
6.2 Product acceptance . 29
6.3 Product life cycle. 29
6.4 New product generation . 29
6.5 Field data. 31
Bibliography . 33

62005-1 © IEC:2001 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
RELIABILITY OF FIBRE OPTIC INTERCONNECTING DEVICES
AND PASSIVE COMPONENTS –
Part 1: Introductory guide and definitions
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the 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, the IEC publishes International Standards. 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. The 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 the 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 National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical specifications, technical reports or guides and they are accepted by the National
Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62005-1 has been prepared by subcommittee 86B: Fibre optic
interconnecting devices and passive components, of IEC technical committee 86: Fibre optics.
The text of this standard is based on the following documents:
FDIS Report on voting
86B/1437/FDIS 86B/1496/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 3.

62005-1 © IEC:2001 – 7 –
IEC 62005 consists of the following parts under the general title: Reliability of fibre optic
interconnecting devices and passive components:
Part 1 Introductory guide and definitions
Part 2 Quantitative assessment of reliability based on accelerated ageing tests –
Temperature and humidity; steady state
Part 3 Relevant tests for evaluating failure modes and failure mechanisms for passive
components
Part 4 Product screening
Part 6 The use of field data to determine, specify and improve component reliability
Part 7 Life-stress modelling
The committee has decided that the contents of this publication will remain unchanged until
2006. At this date, the publication will be
 reconfirmed;
 withdrawn;
 replaced by a revised edition, or
 amended.
62005-1 © IEC:2001 – 9 –
INTRODUCTION
When assessing the reliability of a passive optical component, it is important to also note that
appropriate definitions of the service environment, expected lifetime and definition of failure
need to be applied properly in the context of the product use. Because of many variations in
the application and failure criteria, the reader is encouraged to utilize all clauses of this part of
IEC 62005 in their proper context. The reader is particularly warned to avoid any over-
simplification of reliability by using a single number such as FIT as a basis of comparison,
because without the proper full context noted above, such a comparison would be
meaningless.
62005-1 © IEC:2001 – 11 –
RELIABILITY OF FIBRE OPTIC INTERCONNECTING DEVICES
AND PASSIVE COMPONENTS –
Part 1: Introductory guide and definitions
1 Scope
This part of IEC 62005 is a guide for assessing the reliability interconnecting devices and
passive components. It is intended to be applied to all types of fibre-optic interconnecting
devices and passive optical components. The family of applicable types includes, but is not
limited to, passive devices used for connection, branching, switching, minimization of
reflection, control of power/attenuation, dispersion compensation, modulation and wavelength
selection or filtering. Closures may be included in the future.
2 Normative references
The following normative documents contain provisions which, through reference in this text,
constitute provisions of this part of IEC 62005. For dated references, subsequent amendments
to, or revisions of, any of these publications do not apply. However, parties to agreements
based on this part of IEC 62005 are encouraged to investigate the possibility of applying the
most recent editions of the normative documents indicated below. For undated references, the
latest edition of the normative document referred to applies. Members of IEC and ISO maintain
registers of currently valid International Standards.
IEC 60050(191):1990, International Electrotechnical Vocabulary (IEV) – Chapter 191:
Dependability and quality of service
IEC 61300 (all parts), Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures
3 Overall view of the parts comprising IEC 62005
IEC 62005-1 is intended to provide general guidance, with an overview and relevant
terminology. It includes normative and informative references.
IEC 62005-2 is an application note to provide guidance in defining the reliability of passive
optical devices. It provides advice on life testing procedures, the calculation of failure rates and
the presentation of results. In addition to the general guidance, a worked example is given
showing the method of calculating the hazard rate for a device during its service lifetime, based
on accelerated life tests.
IEC 62005-3 focuses on the failure mechanisms associated with interconnecting devices and
passive optical components. In order to estimate the reliability by acceleration testing of
IEC 62005-2, it is very important to determine the dominant failure mechanism and related
tests. IEC 62005-3 introduces a choice of relevant tests from the IEC 61300 series of fibre
optic tests for each known failure mechanism and failure effects related to certain failure
modes.
62005-1 © IEC:2001 – 13 –
IEC 62005-4 describes the application of a screening process. It notes that a proper screening
process is actually a process, not a test. As a process it shall be maintained and constantly
validated to ensure that it achieves the purpose for which it was defined. This process is
applied to a product in order to induce products with a known failure mechanism to fail in a
controlled situation before the product is deployed in the field.
IEC 62005-6 is intended to provide guidance on the use of field data for assessing the
reliability performance of a device.
IEC 62005-7 (under consideration) describes a common set of procedures for calculating the
reliability of fibre optic connectors, splices and passive branching devices. The standard deals
specifically with component reliability as calculated from life tests which are accelerated in
some manner. Without common procedures, the calculation of device reliability is subject to
numerous assumptions and approaches. The subsequent stated results may be ambiguous
and difficult to interpret and may lead to mistaken conclusions.
4 Reliability approach
A reliability approach, outlined in figure 1, shows a process for defining and improving the
reliability aspects of a passive optical component. Each element in the reliability approach
plays an important role in the reliability assessment of a passive optical component. In addition,
there are several interactions between the elements that lead to improved product and
ultimately improved reliability.
Product evolution
Establish Extended quality and
Characterization
Qualify Field data
requirements
reliability test program
Definition Design Development Manufacturing Installation Operation
Ongoing reliability assessment
IEC  173/01
Figure 1 – Reliability approach
Characterization, specification and qualification form minimal requirements of any new product.
The product life cycle is an important consideration, particularly for rapidly developing products.
Tests that take longer to perform than the current generation of product may have diminished
value, but often provide information leading to future improvements. Once a new product has
been sufficiently characterized, it is typically subjected to performance testing. The testing is
based on specification requirements and the outcome may include product infant mortalities.
This leads to pass/fail requirements and the need for standard test and measurement
procedures.
62005-1 © IEC:2001 – 15 –
Extended qualification is based on real environments and typically involves accelerated testing.
Extended qualification is required to assess the possibility of unknown degradation mech-
anisms. The results often lead to corrective action and may require additional standard test and
measurement procedures. They lead to a quantitative reliability assessment but should be
verified by field data and be supported by other elements of a complete reliability programme.
Designed experiments are required both to evaluate degradation mechanisms quantitatively
and to provide a basis for continuous improvement. The quantitative linkage of accelerated
tests to actual field environment
...