SIST EN 61753-101-3:2008
(Main)Fibre optic interconnecting devices and passive components performance standard -- Part 101-3: Fibre management systems for Category U - Uncontrolled environment
Fibre optic interconnecting devices and passive components performance standard -- Part 101-3: Fibre management systems for Category U - Uncontrolled environment
This part of IEC 61753 deals with performance standards for parts of fibre management systems. It defines those tests and severities which form the performance or general operating service environment, and identifies those tests which are considered to be product specific. Test and severity details are given. This part of IEC 61753 contains the minimum test and measurement severities which a specific product must satisfy in order to be categorised as meeting the IEC standard, Category U - Uncontrolled environment, as defined in Annex A of IEC 61753-1. More severe requirements may be agreed between the customer and the supplier. A product performance standard will contain a combination of those tests and measurements that are common to all products, for a particular service environment or performance category, and those that are considered specific to that particular product in that environment.
Lichtwellenleiter - Verbindungselemente und passive Bauteile - Betriebsverhalten -- Teil 101-3: Einzelfasermanagementsysteme für die Kategorie U - Unkontrollierte Umgebung
Norme de qualité de fonctionnement des dispositifs d'interconnexion et composants passifs à fibres optiques -- Partie 101-3: Systèmes de gestion de fibres pour la Catégorie U - Environnement non contrôlé
La présente partie de la CEI 61753 contient les sévérités minimales d'essai et de mesure auxquelles un produit spécifique doit satisfaire pour être classé comme satisfaisant à la norme CEI, Catégorie U - Environnement non contrôlé, tel que défini en Annexe A de la CEI 61753-1.
Tehnični standard za optične spojne elemente in pasivne komponente - 101-3. del: Sistemi za upravljanje optičnih elementov za kategorijo U - Nenadzorovano okolje (IEC 61753-101-3:2006)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 61753-101-3:2008
01-oktober-2008
7HKQLþQLVWDQGDUG]DRSWLþQHVSRMQHHOHPHQWHLQSDVLYQHNRPSRQHQWHGHO
6LVWHPL]DXSUDYOMDQMHRSWLþQLKHOHPHQWRY]DNDWHJRULMR81HQDG]RURYDQRRNROMH
,(&
Fibre optic interconnecting devices and passive components performance standard -
Part 101-3: Fibre management systems for Category U - Uncontrolled environment (IEC
61753-101-3:2006)
Lichtwellenleiter - Verbindungselemente und passive Bauteile - Betriebsverhalten - Teil
101-3: Einzelfasermanagementsysteme für die Kategorie U - Unkontrollierte Umgebung
(IEC 61753-101-3:2006)
Norme de qualité de fonctionnement des dispositifs d'interconnexion et composants
passifs à fibres optiques - Partie 101-3: Systèmes de gestion de fibres pour la Catégorie
U - Environnement non contrôlé (CEI 61753-101-3:2006)
Ta slovenski standard je istoveten z: EN 61753-101-3:2008
ICS:
33.180.20 3RYH]RYDOQHQDSUDYH]D Fibre optic interconnecting
RSWLþQDYODNQD devices
SIST EN 61753-101-3:2008 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 61753-101-3:2008
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SIST EN 61753-101-3:2008
EUROPEAN STANDARD
EN 61753-101-3
NORME EUROPÉENNE
August 2008
EUROPÄISCHE NORM
ICS 33.180.20
English version
Fibre optic interconnecting devices
and passive components performance standard -
Part 101-3: Fibre management systems for Category U -
Uncontrolled environment
(IEC 61753-101-3:2006)
Norme de qualité de fonctionnement Lichtwellenleiter -
des dispositifs d'interconnexion Verbindungselemente
et composants passifs à fibres optiques - und passive Bauteile -
Partie 101-3: Systèmes de gestion Betriebsverhalten -
de fibres pour la Catégorie U - Teil 101-3:
Environnement non contrôlé Einzelfasermanagementsysteme
(CEI 61753-101-3:2006) für die Kategorie U -
Unkontrollierte Umgebung
(IEC 61753-101-3:2006)
This European Standard was approved by CENELEC on 2008-06-01. 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, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the 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
© 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61753-101-3:2008 E
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SIST EN 61753-101-3:2008
EN 61753-101-3:2008 - 2 -
Foreword
The text of document 86B/2364/FDIS, future edition 1 of IEC 61753-101-3, 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 61753-101-3 on 2008-06-01.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
(dop) 2009-03-01
national standard or by endorsement
– latest date by which the national standards conflicting
(dow) 2011-06-01
with the EN have to be withdrawn
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61753-101-3:2006 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 60068-1 NOTE Harmonized as EN 60068-1:1994 (not modified).
IEC 60332 NOTE Harmonized in EN 60332 series (not modified).
IEC 60794-2 NOTE Harmonized as EN 60794-2:2003 (not modified).
IEC 60794-3 NOTE Harmonized as EN 60794-3:2002 (not modified).
IEC 61300 NOTE Harmonized in EN 61300 series (not modified).
__________
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SIST EN 61753-101-3:2008
- 3 - EN 61753-101-3:2008
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
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.
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
1) 2)
IEC 60068-2-64 - Environmental testing - EN 60068-2-64 1994
Part 2: Test methods - Test Fh: Vibration,
broad-band random (digital control) and
guidance
1) 2)
IEC 60721-3-1 - Classification of environmental conditions - EN 60721-3-1 1997
Part 3: Classification of groups of
environmental parameters and their
severities -
Section 1: Storage
1) 2)
IEC 60721-3-2 - Classification of environmental conditions - EN 60721-3-2 1997
Part 3: Classification of groups of
environmental parameters and their
severities -
Section 2: Transportation
1) 2)
IEC 60793-2-50 - Optical fibres - EN 60793-2-50 2004
Part 2-50: Product specifications - Sectional + corr. July 2004
specification for class B single-mode fibres
1) 2)
IEC 61300-1 - Fibre optic interconnecting devices and EN 61300-1 2003
passive components - Basic test and
measurement procedures -
Part 1: General and guidance
1) 2)
IEC 61300-2-1 - Fibre optic interconnecting devices and EN 61300-2-1 2003
passive components - Basic test and
measurement procedures -
Part 2-1: Tests - Vibration (sinusoidal)
1) 2)
IEC 61300-2-4 - Fibre optic interconnecting devices and EN 61300-2-4 1997
passive components - Basic test and
measurement procedures -
Part 2-4: Tests - Fibre/cable retention
1) 2)
IEC 61300-2-9 - Fibre optic interconnecting devices and EN 61300-2-9 1997
passive components - Basic test and
measurement procedures -
Part 2-9: Tests - Shock
1) 2)
IEC 61300-2-12 - Fibre optic interconnecting devices and EN 61300-2-12 2005
passive components - Basic test and
measurement procedures -
Part 2-112: Tests - Impact
1)
Undated reference.
2)
Valid edition at date of issue.
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SIST EN 61753-101-3:2008
EN 61753-101-3:2008 - 4 -
Publication Year Title EN/HD Year
1) 2)
IEC 61300-2-17 - Fibre optic interconnecting devices and EN 61300-2-17 2003
passive components - Basic test and
measurement procedures -
Part 2-17: Tests - Cold
1) 2)
IEC 61300-2-18 - Fibre optic interconnecting devices and EN 61300-2-18 2005
passive components - Basic test and
measurement procedures -
Part 2-18: Tests - Dry heat - High temperature
endurance
1) 2)
IEC 61300-2-19 - Fibre optic interconnecting devices and EN 61300-2-19 2005
passive components - Basic test and
measurement procedures -
Part 2-19: Tests - Damp heat (steady state)
1) 2)
IEC 61300-2-22 - Fibre optic interconnecting devices and EN 61300-2-22 2007
passive components - Basic test and
measurement procedures -
Part 2-22: Tests - Change of temperature
1) 2)
IEC 61300-2-33 - Fibre optic interconnecting devices and EN 61300-2-33 2007
passive components - Basic test and
measurement procedures -
Part 2-33: Tests - Assembly and disassembly
of fibre optic closures
1) 2)
IEC 61300-2-42 - Fibre optic interconnecting devices and EN 61300-2-42 2005
passive components - Basic test and
measurement procedures -
Part 2-42: Tests - Static side load for
connectors
1) 2)
IEC 61300-2-46 - Fibre optic interconnecting devices and EN 61300-2-46 2006
passive components - Basic test and
measurement procedures -
Part 2-46: Tests - Damp heat cyclic
1) 2)
IEC 61300-3-1 - Fibre optic interconnecting devices and EN 61300-3-1 2005
passive components - Basic test and
measurement procedures -
Part 3-1: Examinations and measurements -
Visual examination
1) 2)
IEC 61300-3-3 - Fibre optic interconnecting devices and EN 61300-3-3 2003
passive components - Basic test and
measurement procedures -
Part 3-3: Examinations and measurements -
Active monitoring of changes in attenuation
and return loss
1) 2)
IEC 61300-3-28 - Fibre optic interconnecting devices and EN 61300-3-28 2002
passive components - Basic test and
measurement procedures -
Part 3-28: Examinations and measurements -
Transient loss
1) 2)
IEC 61753-1 - Fibre optic interconnecting devices and EN 61753-1 2007
passive components performance standard -
Part 1: General and guidance for performance
standards
1) 2)
IEC 62134-1 - Fibre optic enclosures - EN 62134-1 2002
Part 1: Generic specification
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SIST EN 61753-101-3:2008
NORME CEI
INTERNATIONALE IEC
61753-101-3
INTERNATIONAL
Première édition
STANDARD
First edition
2006-10
Norme de qualité de fonctionnement
des dispositifs d’interconnexion et
composants passifs à fibres optiques –
Partie 101-3:
Systèmes de gestion
de fibres pour la Catégorie U –
Environnement non contrôlé
Fibre optic interconnecting devices and
passive components performance standard –
Part 101-3:
Fibre management systems for Category U –
Uncontrolled environment
© IEC 2006 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 any
utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including
électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. the publisher.
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Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
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Pour prix, voir catalogue en vigueur
For price, see current catalogue
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SIST EN 61753-101-3:2008
61753-101-3 © IEC:2006 – 3 –
CONTENTS
FOREWORD.5
INTRODUCTION.9
1 Scope.11
2 Normative references.11
3 Terms, definitions and abbreviations .15
3.1 Terms and definitions .15
3.2 Abbreviations.15
4 Environmental requirements .17
5 Test procedure .17
5.1 General .17
5.2 Stationary use .17
5.3 Storage .19
5.4 Transportation .19
5.5 Installation or intervention.19
6 General requirements .21
6.1 Storage, transportation and packaging .21
6.2 Marking and identification .21
6.3 Materials .21
6.4 Traceability.23
6.5 Safety.23
6.6 Documentation .23
7 Performance requirements.25
7.1 Sample size.25
7.2 Performance details.25
Annex A (normative) Sample definition .35
Annex B (normative) Sample size.41
Annex C (informative) Access and reconfiguration/resplicing .45
Bibliography .49
Figure A.1 – Sample configuration with splices only.35
Figure A.2 – Sample configuration with splices and connectors.37
Table 1 – Performance criteria requirements .25
Table 2 – Mechanical performance requirements.27
Table 3 – Environmental performance requirements for category U.29
Table 4 – Transportation and storage, mechanical performance requirements .31
Table 5 – Transportation and storage, environmental performance requirements .33
Table A1 – Fibre characteristics for the test samples .35
Table B.1 – Number of samples for each test .43
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SIST EN 61753-101-3:2008
61753-101-3 © IEC:2006 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONNECTING DEVICES
AND PASSIVE COMPONENTS PERFORMANCE STANDARD –
Part 101-3: Fibre management systems
for Category U – Uncontrolled environment
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 61753-100-3 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/2364/FDIS 86B/2403/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.
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SIST EN 61753-101-3:2008
61753-101-3 © IEC:2006 – 7 –
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
IEC 61753 consists of the following parts, under the general title Fibre optic interconnecting
1
devices and passive components performance standard:
Part 1-1: General and guidance – Interconnecting devices (connectors)
Part 2-1: Fibre optic connectors terminated on single-mode fibre for category U –
Uncontrolled environment
Part 2-3: Non-connectorised single-mode 1×N and 2×N non-wavelength-selective
branching devices for Category U – Uncontrolled environment
Part 021-2 Fibre optic connectors terminated on single-mode fibre to category C –
Controlled environment
Part 022-2: Fibre optic connectors terminated on multimode fibre for category C –
Controlled environment
Part 051-3: Single-mode fibre, plug-style fixed attenuators for Category U – Uncontrolled
environment
Part 053-3: Continuously variable attenuatorsfor category U – Uncontrolled environment
Part 061-3: Single mode fibre optic pigtailed style isolators for category U – Uncontrolled
environment
Part 091-3: Single mode fibre optic pigtailed style circulators for category U – Uncontrolled
environment
Part 101-2: Fibre management systems for Category C – Controlled environment
Part 101-3: Fibre management systems for Category U – Uncontrolled environment
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 date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
___________
1 Other parts of IEC 61753 are currently in preparation or under consideration.
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SIST EN 61753-101-3:2008
61753-101-3 © IEC:2006 – 9 –
INTRODUCTION
This Performance Standard for fibre management systems defines the requirements for
standard optical performance under a set of specified conditions. This standard contains a
series or a set of tests and measurements with clearly stated conditions, severities and
pass/fail criteria. The series of tests, commonly referred to as an operating service
environment or performance category, is intended to be a basis to prove the product’s ability to
satisfy the requirements of a specific application, market sector or user group.
A product that has been shown to meet all the requirements of this performance standard may
be declared as complying with this performance standard. Products having the same
classification from one manufacturer that satisfy this performance standard, will operate within
the boundaries set by the performance standard. There is no guarantee that products from
different manufacturers, having the same classification and which conform to the same
performance standard, will provide an equivalent level of performance when they are used
together.
Conformance with IEC environmental policy according to IEC Guide 109 and concerning the
need to reduce the impacts on the natural environment of fibre management system products
during all phases of their life – from acquiring materials to manufacturing, distribution, use, and
end-of-life treatment (i.e. re-use, recycling and disposal) – is indicated within each product
specification.
Conformance to a performance standard demonstrates that a product has passed a design
verification test. It is not a guarantee of lifetime assured performance or reliability. Reliability
testing must be the subject of a separate test schedule, where the tests and severities selected
are such that they are truly representative of the requirements of this reliability test programme.
Consistency of manufacture should be maintained using a recognised Quality Assurance
programme whilst the reliability of a product should be evaluated using the procedures
recommended in IEC 62005.
Tests and measurements should be selected from the IEC 61300 series.
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SIST EN 61753-101-3:2008
61753-101-3 © IEC:2006 – 11 –
FIBRE OPTIC INTERCONNECTING DEVICES
AND PASSIVE COMPONENTS PERFORMANCE STANDARD –
Part 101-3: Fibre management systems
for Category U – Uncontrolled environment
1 Scope
This part of IEC 61753 deals with performance standards for parts of fibre management
systems. It defines those tests and severities which form the performance or general operating
service environment, and identifies those tests which are considered to be product specific.
Test and severity details are given.
This part of IEC 61753 contains the minimum test and measurement severities which a specific
product must satisfy in order to be categorised as meeting the IEC standard, Category U –
Uncontrolled environment, as defined in Annex A of IEC 61753-1. More severe requirements
may be agreed between the customer and the supplier.
A product performance standard will contain a combination of those tests and measurements
that are common to all products, for a particular service environment or performance category,
and those that are considered specific to that particular product in that environment.
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 60068-2-64, Environmental testing, Part 2: Tests methods – Test Fh: Vibration, broad-band
random (digital control) and guidance
IEC 60721-3-1, Classification of environmental conditions – Part 3: Classification of groups of
environmental parameters and their severities – Section 1: Storage.
IEC 60721-3-2, Classification of environmental conditions – Part 3: Classification of groups of
environmental parameters and their severities – Section 2: Transportation.
IEC 60793-2-50, Optical fibres – Part 2-50: Product specifications – Sectional specification for
class B single-mode fibres
IEC 61300-1, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 1: General and guidance
IEC 61300-2-1, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-1: Tests – Vibration (sinusoidal)
IEC 61300-2-4 Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-4: Tests – Fibre/cable retention
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SIST EN 61753-101-3:2008
61753-101-3 © IEC:2006 – 13 –
IEC 61300-2-9, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-9: Tests – Shock
IEC 61300-2-12, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-12: Tests – Impact
IEC 61300-2-17, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-17: Tests – Cold
IEC 61300-2-18, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-18: Tests – Dry heat – High temperature endurance
IEC 61300-2-19, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-19: Tests – Damp heat (steady state)
IEC 61300-2-22, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-22: Tests – Change of temperature
IEC 61300-2-33, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-33: Tests – Assembly and disassembly of closures
IEC 61300-2-42, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-42: Tests – Static side load for connectors
IEC 61300-2-46, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-46: Tests – Damp heat, cyclic
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 61300-3-3, 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 61300-3-28, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-28: Examinations and measurements – Transient loss
IEC 61753-1, Fibre optic interconnecting devices and passive components – Part 1: General
2
and guidance for performance standards
IEC 62134-1, Fibre optic enclosures – Part 1: Generic specification
___________
2
To publish.
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SIST EN 61753-101-3:2008
61753-101-3 © IEC:2006 – 15 –
3 Terms, definitions and abbreviations
For the purposes of this document, the following terms, definitions and abbreviations apply.
3.1 Terms and definitions
3.1.1
excursion loss
loss monitored (at regular time intervals) during slow variations of environmental parameters
3.1.2
intervention
gain access to modify, add, remove or repair fibre circuits, splices, connectors or other
components between the incoming and outgoing cables of an existing fibre management
system
3.1.3
installation
establish and install a fibre management system, by adding new circuits, splices, connectors
and other components, including the incoming and outgoing cables
3.1.4
installation conditions
circumstances that must be fulfilled
...
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