SIST EN 61758-1:2008

SLOVENSKI STANDARD
SIST EN 61758-1:2008
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
SIST EN 61758-1:2008 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 61758-1:2008

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SIST EN 61758-1:2008

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

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SIST EN 61758-1:2008
EN 61758-1:2008 – 2 –
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).
__________

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SIST EN 61758-1:2008
– 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.

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SIST EN 61758-1:2008

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SIST EN 61758-1:2008
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

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SIST EN 61758-1:2008
– 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

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SIST EN 61758-1:2008
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

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SIST EN 61758-1:2008
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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.

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SIST EN 61758-1:2008
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.

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SIST EN 61758-1:2008
– 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.

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SIST EN 61758-1:2008
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

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SIST EN 61758-1:2008
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IEC 61753 (all parts), Fibre optic interconnecting devices and passive components
performance standard
IEC 61753-1, Fibre optic interconnecting devices and passive components performance
standard – Part 1 – General and guidance for performance standards
IEC 61756-1, Fibre optic interconnecting devices and passive components – Interface
standard for fibre management systems – Part 1: General and guidance
IEC/TR 62222, Fire performance of communication cables installed in buildings
3 Terms, definitions and abbreviations
3.1 Terms and definitions
3.1.1
ancillary components
components that are used for functions other than optical transmission
3.1.2
closure
all external housings except outdoor cabinets
3.1.3
enclosure
indoor housings (cabinets, cases, distribution frames) and outdoor cabinets
3.1.4
housing
closure or enclosure
3.1.5
intervention
opening the cover, modifying, adding, removing or repairing fibre circuits, splices, connectors
or other components between the incoming and outgoing cables of an existing fibre
management system
3.1.6
optical node
a point of intervention in the network, e.g. at each opening of a cable jacket or at the end of
the cable
NOTE Nodes in this specification are parts of the physical network containing closures and fibre management
systems capable of performing their expected function in the network, while exposed to the environment that they
are intended to reside in.
3.1.7
fibre management system
system to control, protect and store fibres from the incoming to the outgoing fibres
[IEC 61756-1, definition 3.1.4]
3.1.8
active optical component
optical component or assembly which makes use of quantum-mechanical effects or generates
optical gain of signal power, or directly modulates optical signals
NOTE 1 Examples include optical amplifiers.

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SIST EN 61758-1:2008
61758-1 © IEC:2008(E) – 9 –
NOTE 2 Sometimes optical sources and optical detectors have been designed as active optical components.
[IEC 61756-1, definition 3.1.14].
3.1.9
passive optical component
an optical component or assembly which does not require any source of energy for its
operation other than optical input signals, or controls the dynamic or static characteristics of
optical signals using a source of energy; an optical passive component never generates an
optical gain of signal power
NOTE 1 Examples include optical attenuators and passive branching devices.
NOTE 2 Photo diode, which is an active component used as simple signal monitoring, might be treated as a
passive optical component.
[IEC 61756-1, definition 3.1.15]
3.1.10
external siting
mounting location for closures
3.2 Abbreviations
FMS: fibre management system
xWDM: wavelength division multiplexing device (DWDM, CWDM, etc.)
4 General description
4.1 Functional requirements
The general function of the closure is to provide:
• a housing for a fibre management system, including cable element storage, and ancillary
passive or active components or other functional parts to build an optical node;
• a management system for the external environment, e.g. subterranean chambers, aerial
poles and street cabinets;
• environmental and mechanical protection.
The following ancillary passive and active optical components may be stored or installed in
the closure, but outside of the fibre management system or other functional parts of the
optical node:
• electronic sensors and ancillary equipment for the detection of moisture ingress;
• communication electronic alarm devices and cable equipment for the transmission of
signals to an external remote control station;
• grounding to earth of metallic parts of the structure and cables for operator safety.
4.2 Environmental requirements
The primary environmental requirements are:
• environmental protection;
• mechanical protection.
Environmental and mechanical protection prevents damage to the closure and protect internal
closure components and assemblies from external environmental influences, including

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SIST EN 61758-1:2008
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temperature, humidity, vibration, impact, compression, torsion, bump, tension and aggressive
and corrosive media.
Environmental performance tests are carried out to suit the installed environment. Each has
an appropriate severity category listed in IEC 61300 and IEC 61753-1:
• S: subterranean (underground);
• A: aerial;
• G: ground level;
• C: controlled (in building).
4.3 Functional closure parts
4.3.1 Primary function
The primary function of the closure is to protect the fibre and other functional parts and to
provide quick access to all internal components and assemblies.
The primary functional parts of the closure are:
• covers;
• base or end plates;
• closing parts;
• seals for the base or end plates.
4.3.2 Cover functional requirements
The closure cover requires the following features:
• sealing feature;
• means of attachment .
4.3.3 Base or end plate functional requirements
The primary function of the base or end plate is cable attachment and sealing.
The closure base or end plate requires the following features:
• sealing feature;
• means of attachment;
• cable entry ports.
4.3.4 Opening and closing functional requirements
The opening and closing function provides access to internal members, adequate closing
force and structural strength.
The closure cover to base fixing requires the following features:
• secure fixing;
• sealing feature.
4.3.5 Closure seal functional requirements
The function of these parts of the closure is to form a gas and liquid resistant seal.

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4.3.6 General functional requirements
In addition to the above the following functions shall be provided, where required, in each
closure:
• ability to attach other structural parts;
• ability to fit an air pressure valve.
5 Closure overpressure safety
Overpressure can build up in sealed closures due to temperature differentials over a period of
time, or due to tightness testing of the seals after installation or incorrect installation
techniques.
Care should be taken when opening a sealed closure.
Provisions shall be made that overpre
...