SIST EN 62005-3:2002

Reliability of fibre optic interconnecting devices and passive components -- Part 3: Relevant tests for evaluating failure modes and failure mechanisms for passive components

Applies to failure mechanisms for interconnnecting devices and passive components. It introduces a choice of relevant tests from the EN 61300 series tests for each known failure mechanism and failure effects. See EN 62005-5 for the extension of severity for environmental categories.

Zuverlässigkeit von LWL-Verbindungselementen und passiven Bauelementen -- Teil 3: Geeignete Prüfverfahren zur Ermittlung von Ausfallmoden und Ausfallmechanismen von passiven Bauteilen

Fiabilité des dispositifs d'interconnexion et des composants passifs à fibres optiques -- Partie 3: Essais significatifs pour l'évaluation des modes et mécanismes de défaillance des composants passifs

S'applique aux mécanismes de défaillance associés aux dispositifs d'interconnexion et aux composants passifs. Elle donne le choix des essais appropriés de la série EN 61300 pour chaque mécanisme et effet de défaillance connus. Voir EN 62005-5 pour les extensions de sévérité en fonction de catégorie d'environnement.

Reliability of fibre optic interconnecting devices and passive components - Part 3: Relevant tests for evaluating failure modes and failure mechanisms for passive components (IEC 62005-3:2001)

General Information

• Status: Published
• Publication Date: 31-Aug-2002
• ICS: 33.180.20 - Fibre optic interconnecting devices
• Technical Committee: iTEL - Communication cables
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Sep-2002
• Due Date: 01-Sep-2002
• Completion Date: 01-Sep-2002
• Ref Project: EN 62005-3:2001 - Reliability of fibre optic interconnecting devices and passive components - Part 3: Relevant tests for evaluating failure modes and failure mechanisms for passive components

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 62005-3:2002
01-september-2002
Reliability of fibre optic interconnecting devices and passive components - Part 3:
Relevant tests for evaluating failure modes and failure mechanisms for passive
components (IEC 62005-3:2001)
Reliability of fibre optic interconnecting devices and passive components -- Part 3:
Relevant tests for evaluating failure modes and failure mechanisms for passive
components
Zuverlässigkeit von LWL-Verbindungselementen und passiven Bauelementen -- Teil 3:
Geeignete Prüfverfahren zur Ermittlung von Ausfallmoden und Ausfallmechanismen von
passiven Bauteilen
Fiabilité des dispositifs d'interconnexion et des composants passifs à fibres optiques --
Partie 3: Essais significatifs pour l'évaluation des modes et mécanismes de défaillance
des composants passifs
Ta slovenski standard je istoveten z: EN 62005-3:2001
ICS:
33.180.20 3RYH]RYDOQHQDSUDYH]D Fibre optic interconnecting
RSWLþQDYODNQD devices
SIST EN 62005-3:2002 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 62005-3:2002

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SIST EN 62005-3:2002
EUROPEAN STANDARD EN 62005-3
NORME EUROPÉENNE
EUROPÄISCHE NORM June 2001
ICS 33.180.20
English version
Reliability of fibre optic interconnecting devices and passive components
Part 3: Relevant tests for evaluating failure modes
i:EN62005-2{2001}and failure mechanisms for passive components
(IEC 62005-3:2001)
Fiabilité des dispositifs d'interconnexion et Zuverlässigkeit von LWL-
des composants passifs à fibres optiques Verbindungselementen und passiven
Partie 3: Essais significatifs pour Bauelementen
l'évaluation des modes et mécanismes de Teil 3: Geeignete Prüfverfahren zur
défaillance des composants passifs Ermittlung von Ausfallmoden und
(CEI 62005-3:2001) Ausfallmechanismen von passiven
Bauteilen
(IEC 62005-3:2001)
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 62005-3:2001 E

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SIST EN 62005-3:2002
EN 62005-3:2001 - 2 -
Foreword
The text of document 86B/1439/FDIS, future edition 1 of IEC 62005-3, 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 62005-3 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
__________
Endorsement notice
The text of the International Standard IEC 62005-3:2001 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, add the following note after the title:
NOTE  All International Standards mentioned have been harmonized as European Standards.
__________

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SIST EN 62005-3:2002
NORME
CEI
INTERNATIONALE IEC
62005-3
INTERNATIONAL
Première édition
STANDARD
First edition
2001-03
Fiabilité des dispositifs d'interconnexion
et des composants passifs à fibres optiques –
Partie 3:
Essais significatifs pour l'évaluation
des modes et mécanismes de défaillance
des composants passifs
Reliability of fibre optic interconnecting devices
and passive components –
Part 3:
Relevant tests for evaluating failure modes and
failure mechanisms for passive components
© IEC 2001 Droits de reproduction réservés ⎯ Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in
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.
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: [phone] e-mail: [e-mail] IEC web site http://www.iec.ch
CODE PRIX
Commission Electrotechnique Internationale
Q
PRICE CODE
International Electrotechnical Commission
Pour prix, voir catalogue en vigueur
For price, see current catalogue

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SIST EN 62005-3:2002
62005-3 © IEC:2001 – 3 –
CONTENTS
Page
FOREWORD . 5
Clause
1 Scope . 9
2 Choice of relevant tests . 9
3 Typical failure points . 9
4 Failure modes and known failure mechanisms . 9
5 Criteria for the choice of stress conditions – Step stress method. 11
Bibliography . 33
Figure 1 – Choice of relevant tests . 13
Figure 2 – Typical constituent parts and failure points . 13
Table 1 – Typical constituent parts and associated failure . 15
Table 2 – Failure mode and known failure mechanisms for passive optical components . 17

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SIST EN 62005-3:2002
62005-3 © IEC:2001 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
RELIABILITY OF FIBRE OPTIC INTERCONNECTING DEVICES
AND PASSIVE COMPONENTS –
Part 3: Relevant tests for evaluating failure modes and failure
mechanisms for passive components
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 62005-3 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/1439/FDIS 86B/1498/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.
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

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SIST EN 62005-3:2002
62005-3 © IEC:2001 – 7 –
– Part 3: Relevant tests for evaluating failure modes and failure mechanisms for passive
components
– Part 4: Product screening
2)
– Part 5: Reliability accelerated tests to standardized service environments
2)
– Part 6: Use of field data to determine, specify and improve component reliability
The committee has decided that the contents of this publication will remain unchanged until
2003. At this date, the publication will be:
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
———————
2)
 Under consideration.

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SIST EN 62005-3:2002
62005-3 © IEC:2001 – 9 –
RELIABILITY OF FIBRE OPTIC INTERCONNECTING DEVICES
AND PASSIVE COMPONENTS –
Part 3: Relevant tests for evaluating failure modes and failure
mechanisms for passive components
1 Scope
This part of IEC 62005 focuses on failure mechanisms associated with interconnecting
devices and passive components. In order to estimate reliability by the acceleration testing
described in IEC 62005-2, it is important to determine the dominant failure mechanism and
the related test. This part of IEC 62005 introduces a choice of relevant tests from all the
IEC 61300 series tests for each known failure mechanism and failure effects related to certain
failure modes. (In IEC 62005-5, extension of severity depending on environmental category
and performance request will be given.)
2 Choice of relevant tests
Figure 1 shows the guidelines for the choice of relevant tests. At the first stage, relevant tests
are selected by considering the device type of passive optical components. Then, at the
second stage, relevant tests are refined by considering known failure mechanisms for each
device. Each set of relevant tests for a particular device and for a particular known failure
mechanism is obtained by this procedure. After that, suitable test conditions should be
selected.
3 Typical failure points
A typical passive optical component consists of different parts (the optical element, the
package, the pigtail, joints, etc.) as shown in Figure 2. Each passive component exhibits
failures that can be referred to these parts and that can be common for a large class of
devices: failure mode, failure mechanisms, failure effects; a set of relevant tests is shown in
Table 1. Table 2 is more specific for each device type.
4 Failure modes and known failure mechanisms
For any component under consideration, a potential failure mode and effect analysis (PFMEA)
should be carried out. Table 2 shows selected relevant tests by the procedure of Figure 1 for
known failure mechanism or failure effects for each type of commercially available and
testable devices. It must be emphasized that the list of known failure mechanisms and failure
effects is not exhaustive. If new technology and new passive components become
commercially available, they should be added to Table 2. Relevant tests are listed with the
failure effect and the dominant known failure mechanism. As other relevant tests or methods
of failure mode excitation become known, these should also be added in a supplementary
table and published.

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SIST EN 62005-3:2002
62005-3 © IEC:2001 – 11 –
5 Criteria for the choice of stress conditions – Step stress method
The severity and the duration of the test are the main sensitive points in reliability
estimations. The severity indicated for the test by the references is mainly intended for quality
evaluation and may be not sufficient for accelerated ageing tests. “Insufficient” means that
failures or observable degradation may occur in an unacceptably long time (too low
acceleration). On the other hand, the use of too high acceleration could result in failure
mechanisms that are not typical for the devices in their usual operating environments.
A feasible way to identify failure mechanisms and to establish bounds for the test severity is
the step stress method: a significative sample of devices, possibly after product screening, is
aged at an increasing level of stress, starting from the operating conditions. Each testing
condition is performed for a relatively short time (for instance 150 h); after that, temperature
and/or humidity is increased. The severity increase should be high enough to avoid "memory
effects" (ageing behaviour in one step is independent from ageing in the previous ones) but
without causing an atypical failure mechanism (at least at the first steps).
In some cases, the degradation rates are recorded at each step. It is possible to extrapolate a
preliminary relationship between degradation with temperature and/or humidity. If the
degradation rates of more severe conditions are not consistent with an extrapolated
acceleration law, this can also mean that a new failure mechanism has been induced.
The results of step stress testing can be used to corroborate the results of the extended
reliability assessment programme, but they cannot be considered as a conclusive reliability
evaluation.

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SIST EN 62005-3:2002
62005-3 © IEC:2001 – 13 –
All tests
Filter 1
Device type
Known failure mechanism
Filter 2
Set of relevant tests
IEC  180/01
Figure 1 – Choice of relevant tests
Beam conversion
Butt joint
system
Fibre to package
interface
Receptacle
Fusion splicing
joint
Connector
Sealing
Optical element
IEC  181/01
Figure 2 – Typical constituent parts and failure points

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SIST EN 62005-3:2002
62005-3 © IEC:2001 – 15 –
Table 1 – Typical constituent parts and associated failure
Category Constitu- Failure Known failure Failure effect Relevant test IEC reference
ent parts mode mechanisms
Mechanical Rematable Insertion Deterioration of Detachment Vibration 61300-2-1
interface joint loss in- adhesive of physical
Shock 61300-2-9
connector crease contact
Cold 61300-2-17
Reflection
Fibre bending Fibre break
increase
Dry heat 61300-2-18
Endface Endface
mechanical break
Damp heat 61300-2-19
damage
Temperature humidity 61300-2-21
cycle
61300-2-22
Change of temperature
Particle Dust melt at Maximum input power 61300-2-14
contamination high power
Dust 61300-2-27
of endface transmission
Recep- Insertion Fatigue of latch Inability to Vibration 61300-2-1
tacle joint loss in- mate
Shock 61300-2-9
crease
Dust inserted Dust
Cold 61300-2-17
Dry heat 61300-2-18
Damp heat 61300-2-19
Temperature humidity 61300-2-21
cycle
Change of temperature 61300-2-22
Optical Fusion Insertion Fibre bending Fibre break Vibration 61300-2-1
interface splicing
...