EN 61758-1:2008

SLOVENSKI STANDARD
01-november-2008
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Fibre optic interconnecting devices and passive components - Interface standard for
closures - Part 1: General and guidance (IEC 61758-1:2008)
Lichtwellenleiter Verbindungselemente und passive Bauteile - Schnittstellennorm für
Muffen - Teil 1: Allgemeines und Leitfaden (IEC 61758-1:2008)
Dispositifs d'interconnexion et composants passifs à fibres optiques - Norme d'interface
pour boîtiers - Partie 1: Généralités et lignes directrices (CEI 61758-1:2008)
Ta slovenski standard je istoveten z: EN 61758-1:2008
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 61758-1
NORME EUROPÉENNE
August 2008
EUROPÄISCHE NORM
ICS 33.180.20
English version
Fibre optic interconnecting devices and passive components -
Interface standard for closures -
Part 1: General and guidance
(IEC 61758-1:2008)
Dispositifs d'interconnexion  Lichtwellenleiter - Verbindungselemente
et composants passifs à fibres optiques - und passive Bauteile -
Norme d'interface pour boîtiers - Schnittstellennorm für Muffen -
Partie 1: Généralités et lignes directrices Teil 1: Allgemeines und Leitfaden
(CEI 61758-1:2008) (IEC 61758-1:2008)

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 61758-1:2008 E
Foreword
The text of document 86B/2683/FDIS, future edition 1 of IEC 61758-1, 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 61758-1 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
national standard or by endorsement (dop) 2009-03-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2011-06-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61758-1:2008 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated:
IEC 62134-1 NOTE  Harmonized as EN 62134-1:2002 (not modified).
__________
– 3 – EN 61758-1:2008
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 60068-3-3 - Environmental testing - EN 60068-3-3 1993
Part 3: Guidance - Seismic test methods for
equipments
1) 2)
IEC 60721-2-6 - Classification of environmental conditions - HD 478.2.6 S1 1993
Part 2: Environmental conditions appearing in
nature - Earthquake vibration and shock

IEC 60793-2 Series Optical fibres - EN 60793-2 Series
Part 2: Product specifications

IEC 60794-2 Series Optical fibre cables - EN 60794-2 Series
Part 2: Indoor cables
IEC 60794-3 Series Optical fibre cables - EN 60794-3 Series
(mod) Part 3: Outdoor cables
1) 2)
IEC 60825-2 - Safety of laser products - EN 60825-2 2004
Part 2: Safety of optical fibre communication
systems (OFCS)
IEC 61300 Series Fibre optic interconnecting devices and EN 61300 Series
passive components - Basic test and
measurement procedures
IEC 61753 Series Fibre optic interconnecting devices and EN 61753 Series
passive components performance standard

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 61756-1 - Fibre optic interconnecting devices and EN 61756-1 2006
passive components - Interface standard for
fibre management systems -
Part 1: General and guidance
1)
IEC/TR 62222 - Fire performance of communication cables - -
installed in buildings
1)
Undated reference.
2)
Valid edition at date of issue.

IEC 61758-1
Edition 1.0 2008-04
INTERNATIONAL
STANDARD
Fibre optic interconnecting devices and passive components – Interface
standard for closures –
Part 1: General and guidance
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
R
ICS 33.180.20 ISBN 2-8318-9719-X

– 2 – 61758-1 © IEC:2008(E)
CONTENTS
FOREWORD.4

1 Scope.6
2 Normative references .7
3 Terms, definitions and abbreviations .8
3.1 Terms and definitions .8
3.2 Abbreviations .9
4 General description .9
4.1 Functional requirements .9
4.2 Environmental requirements .9
4.3 Functional closure parts .10
4.3.1 Primary function .10
4.3.2 Cover functional requirements .10
4.3.3 Base or end plate functional requirements .10
4.3.4 Opening and closing functional requirements.10
4.3.5 Closure seal functional requirements .10
4.3.6 General functional requirements .11
5 Closure overpressure safety.11
6 Grounding interface.11
7 General closure interfaces.11
8 Cable to closure interface.11
8.1 General .11
8.2 Functional requirements .11
8.2.1 General .11
8.2.2 Cable entry port.12
8.2.3 Repair, maintenance and testing .12
8.2.4 Moisture and gas ingress, sealing and blocking .12
8.2.5 Mechanical impacts .13
8.2.6 Cable and closure handling .13
8.2.7 Electrical continuity and lightning protection .13
8.2.8 Fire-related performance .13
8.2.9 Identification of cables and sub-parts .13
8.2.10 Biotic protection.13
8.2.11 Cable anchoring and supporting elements to closure .14
8.2.12 UV resistance .14
8.2.13 Resistance to aggressive media .14
9 Closure to FMS interface .14
9.1 General .14
9.2 Functional requirements .14
9.2.1 Mounting of the FMS to the closure .14
9.2.2 Identification.14
9.2.3 Access to FMS .15
9.2.4 Bending radius .15
9.2.5 Mechanical impacts .15
9.2.6 FMS grounding .15

61758-1 © IEC:2008(E) – 3 –
9.2.7 Fire hazard (optional for indoor applications) .15
9.2.8 Laser safety.15
9.2.9 High optical power damage .15
10 Other parts of the closure interface .16
10.1 General .16
10.2 Passive components that may be included in a closure .16
10.2.1 xWDM .16
10.2.2 Moisture sensors .16
10.2.3 Security features .16
10.2.4 Connectors and adaptors.16
10.2.5 Pressure relief valves .16
10.2.6 Splitters/couplers.16
10.2.7 Optical switches .17
10.2.8 Desiccant .17
10.3 Active components that may be included in a closure .17
10.3.1 Moisture sensors .17
10.3.2 Security alarms.17
10.3.3 Optical switches .17
10.3.4 Converters.17
11 Closure interface to external siting .17
11.1 Functional requirements .17
11.2 Mounting of the closure to the external siting.17
11.3 Cable entry orientation .17
11.4 Identification.17
11.5 Access to closure and cable .17
11.6 Earthquake resistance.18
11.7 Closure grounding .18
11.8 Lightning protection.18
11.9 Fire hazard (optional for indoor applications).18
11.10 External siting of closure in aerial applications .18

Bibliography.19

Figure 1 – Closure and FMS functions .7

– 4 – 61758-1 © IEC:2008(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
INTERFACE STANDARD FOR CLOSURES –

Part 1: General and guidance
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organisation 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 organisations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organisation for Standardization (ISO) in accordance with conditions determined by
agreement between the two organisations.
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 61758-1 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/2683/FDIS 86B/2712/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.

61758-1 © IEC:2008(E) – 5 –
A list of all parts of the IEC 61758 series, published under the general title Fibre optic
interconnecting devices and passive components – Interface standard for closures, 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 date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

– 6 – 61758-1 © IEC:2008(E)
FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
INTERFACE STANDARD FOR CLOSURES –

Part 1: General and guidance
1 Scope
This part of IEC 61758 provides general information and guidance on the subject of closures.
It includes references, general closure and interface descriptions and definitions.
This standard defines the following general interfaces for closures:
• interface to cables;
• interface to FMS;
• interface to parts other than FMS or cables;
• interface to external sitings (pits, manholes etc.)
This specification covers all types of closures. The performance requirements are given in
IEC 61753-111 series (in preparation).
This closure standard allows both single mode and multi-mode fibre to be used, and covers all
IEC standard optical fibre cables as listed in Clause 2, with their various fibre capacities,
types and designs.
Figure 1 shows and defines the interface between the closure and the fibre management
system.
61758-1 © IEC:2008(E) – 7 –
Closure* Fibre management system**
g
j
d
f
a
m
k
b
c e
h k n
p
IEC  532/08
Key
Closure functions*
FMS functions**
(a) Cable sealing
(g) Organiser/splice tray(s)
(b) Cable anchorage
(h) Fibre storage
(c) Cable blockage
(j)  Distribution element
(d) Cable gas blocking
(k) Passive components
(e) Distribution element
(m) Guiding elements
(f) Identification
(n) Connectors
(p) Cable element storage
* * Example of FMS
* Example of Closure
Figure 1 – Closure and FMS functions
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 60068-3-3, Environmental testing – Part 3: Guidance – Seismic test methods for
equipment
IEC 60721-2-6, Classification of environmental conditions – Part 2: Environmental conditions
appearing in nature – Earthquake vibration and shock
IEC 60793-2 (all parts), Optical fibres – Part 2: Product specifications
IEC 60794-2 (all parts), Optical fibre cables – Part 2: Indoor cables
IEC 60794-3 (all parts), Optical fibre cables – Part 3: Outdoor cables
IEC 60825-2, Safety of laser products – Part 2: Safety of optical fibre communication
systems (OFCS)
IEC 61300 (all parts), Fibre optic interconnecting devices and passive components – Basic
test and measurement procedures

– 8 – 61758-1 © IEC:2008(E)
IEC 61753 (all parts), Fibre optic interconnecting devices and passive components
performance standard
IEC 61753-1, Fibre optic interconnecting dev
...