Fibre optic interconnecting devices and passive components - Fibre optic closures - Part 1: Generic specification

IEC 62134-1:2009 establishes uniform generic requirements for fibre optic closures. This standard does not cover test and measurement procedures, which are described in IEC 61300 series. The main changes with respect to the previous edition are:
- addition and rewording of some terms and definitions;
- reconsideration of type, style and variant in the requirements;
- removal of quality assessment procedures.

Dispositifs d'interconnexion et composants passifs à fibres optiques - Boîtiers à fibres optiques - Partie 1: Spécification générique

La CEI 62134-1:2009 établit des exigences génériques communes relatives aux boîtiers à fibres optiques. La présente norme ne couvre pas les procédures d'essais et de mesure, qui sont décrites dans la série CEI 61300. Les modifications principales par rapport à l'édition précédente sont:
- ajout ou reformulation de certains termes et définitions;
- reconsidération des types, modèles et variantes dans les exigences;
- suppression des procédures d'évaluation de la qualité.

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IEC 62134-1
Edition 2.0 2009-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fibre optic interconnecting devices and passive components – Fibre optic
closures –
Part 1: Generic specification

Dispositifs d’interconnexion et composants passifs à fibres optiques – Boîtiers à

fibres optiques –
Partie 1: Spécification générique
IEC 62134-1:2009
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 62134-1
Edition 2.0 2009-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fibre optic interconnecting devices and passive components – Fibre optic
closures –
Part 1: Generic specification
Dispositifs d’interconnexion et composants passifs à fibres optiques – Boîtiers
à fibres optiques –
Partie 1: Spécification générique
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX
ICS 33.180.99 ISBN 978-2-88910-625-7
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – 62134-1 © IEC:2009
CONTENTS

FOREWORD...........................................................................................................................4

INTRODUCTION.....................................................................................................................6

1 Scope...............................................................................................................................7

2 Normative references .......................................................................................................7

3 Terms and definitions .......................................................................................................8

4 Requirements .................................................................................................................10

4.1 Classification.........................................................................................................10

4.1.1 General .....................................................................................................10

4.1.2 Type..........................................................................................................10

4.1.3 Style..........................................................................................................11

4.1.4 Variant ......................................................................................................11

4.1.5 Arrangement..............................................................................................12

4.1.6 Normative reference extensions ................................................................12

4.1.7 Environmental category – Service categories ............................................13

4.2 Documentation ......................................................................................................13

4.2.1 Specification system..................................................................................13

4.2.2 Symbols ....................................................................................................15

4.2.3 Drawings ...................................................................................................15

4.2.4 Measurements...........................................................................................15

4.2.5 Tests .........................................................................................................15

4.2.6 Test reports ...............................................................................................16

4.2.7 Instructions for use....................................................................................16

4.3 Standardisation system .........................................................................................16

4.3.1 Specification standards .............................................................................16

4.3.2 Interface standards....................................................................................16

4.3.3 Performance standards..............................................................................16

4.3.4 Reliability standards ..................................................................................17

4.4 Design and construction ........................................................................................18

4.4.1 Materials ...................................................................................................18

4.5 Workmanship ........................................................................................................18

4.6 Quality ..................................................................................................................18

4.7 Performance..........................................................................................................19

4.8 Identification and marking .....................................................................................19

4.8.1 General .....................................................................................................19

4.8.2 Variant identification number .....................................................................19

4.8.3 Component marking ..................................................................................19

4.8.4 Package marking.......................................................................................19

4.9 Storage conditions ................................................................................................19

4.10 Safety ...................................................................................................................19

Bibliography..........................................................................................................................21

Figure 1 – Standardisation system ........................................................................................18

---------------------- Page: 4 ----------------------
62134-1 © IEC:2009 – 3 –

Table 1 – Operating service environments ............................................................................13

Table 2 – Multilevel IEC specification structure.....................................................................14

---------------------- Page: 5 ----------------------
– 4 – 62134-1 © IEC:2009
INTERNATIONAL ELECTROTECHNICAL COMMISSION
———————
FIBRE OPTIC INTERCONNECTING DEVICES
AND PASSIVE COMPONENTS –
FIBRE OPTIC CLOSURES –
Part 1: Generic specification
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organisation for standardisation comprising

all national electrotechnical committees (IEC National Committees). The object of IEC is to promote

international co-operation on all questions concerning standardisation 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

nongovernmental organisations liaising with the IEC also participate in this preparation. IEC collaborates

closely with the International Organisation for Standardisation (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

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 62134-1 has been prepared by subcommittee 86B: Fibre optic

interconnecting devices and passive components, of IEC technical committee 86: Fibre optics.

This second edition cancels and replaces the first edition published in 2002. It constitutes a

technical revision.
The main changes with respect to the previous edition are listed below:
– addition and rewording of some terms and definitions;
– reconsideration of type, style and variant in the requirements;
– removal of quality assessment procedures.
---------------------- Page: 6 ----------------------
62134-1 © IEC:2009 – 5 –
The text of this standard is based on the following documents:
FDIS Report on voting
86B/2846/FDIS 86B/2885/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.

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.
---------------------- Page: 7 ----------------------
– 6 – 62134-1 © IEC:2009
INTRODUCTION

Closures comprise a broad component family that functions to protect, secure and store

passive fibre optic components (such as splices or connectors) or other non-interconnecting

devices (such as optical branching devices). They are installed at either indoor or outdoor

locations, and provide access to the optical path of one or more cabled optical fibres. They

also generally provide a fibre management system for the orderly management, routing, and

storage of optical fibres. Configuration definitions may specify integrated functions, or permit

grouped combinations of compatible independent sub-units. Specific classification

requirements vary, and may or may not include isolation from environmental hazards (such as

water ingress), structure codes (such as fire safety), or other appropriate considerations.

Closures are not intended to provide the primary packaging or structure for uncabled optical

fibre splices (such as a rigid mechanical splice shell, or a fusion splice protection sleeve).

Specification for those devices is defined in IEC 61073-1.

It is also intended that closures specified under this standard are not sufficiently characterized

for continuous brine or deep-water submersion. Examples of this are oceanic or lake-crossing

applications. Cables, closures and installation methods suited to this use are highly

specialised and are not within the scope of this standard or supporting test procedures.

---------------------- Page: 8 ----------------------
62134-1 © IEC:2009 – 7 –
FIBRE OPTIC INTERCONNECTING DEVICES
AND PASSIVE COMPONENTS –
FIBRE OPTIC CLOSURES –
Part 1: Generic specification
1 Scope

This part of IEC 62134 establishes uniform generic requirements for fibre optic closures.

This standard does not cover test and measurement procedures, which are described in

IEC 61300 series.
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.

IECQ 001002-3:2005, IEC Quality Assessment System for Electronic Components (IECQ) –

Rules of Procedure – Part 3: Approval procedures
IEC 60027 (all parts), Letter symbols to be used in electrical technology

IEC 60050(731), International Electrotechnical Vocabulary – Chapter 731: Optical fibre

communication
IEC 60068 (all parts), Environmental testing

IEC 60068-2-10, Environmental testing – Part 2-10: Tests – Test J and guidance: Mould

growth
IEC 60617 (all parts), Graphical symbols for diagrams
IEC 60695 (all parts), Fire hazard testing

IEC 60695-1-1, Fire hazard testing – Part 1-1: Guidance for assessing the fire hazard of

electrotechnical products – General guidelines
IEC 60793-2, Optical fibres – Part 2: Product specifications

IEC 60794-2, Optical fibre cables – Part 2: Indoor cables – Sectional specification

IEC 60825-1, Safety of laser products – Part 1: Equipment classification and requirements

IEC 61300-2 (all parts), Fibre optic interconnecting devices and passive components – Basic

test and measurement procedures – Part 2: Tests

IEC 61300-3 (all parts), Fibre optic interconnecting devices and passive components – Basic

test and measurement procedures – Part 3: Examinations and measurements
---------------------- Page: 9 ----------------------
– 8 – 62134-1 © IEC:2009

IEC 61753-1, Fibre optic interconnecting devices and passive components performance

standard – Part 1: General and guidance for performance standards
IEC 61754 (all parts), Fibre optic connector interfaces
IEC/TR 61930, Fibre optic graphical symbology
IEC/TR 61931, Fibre optic – Terminology

IEC 62005 (all parts); Reliability of fibre optic interconnecting devices and passive optical

components

ISO 129-1, Technical drawings – Indication of dimensions and tolerances – Part 1: General

principles

ISO 286-1, ISO system of limits and fits – Part 1: Bases of tolerances, deviations and fits

ISO 1101, Geometrical Product Specifications (GPS) – Geometrical tolerancing – Tolerances

of form, orientation, location and run-out

ISO 4892-3, Plastics – Methods of exposure to laboratory light sources – Part 3: Fluorescent

UV lamps
ISO 8601, Data elements and interchange formats – Information interchange –
Representation of dates and times
3 Terms and definitions

For the purposes of this document, the terms and definitions given in IEC 60050(731) and

IEC 61931, as well as the following apply.
3.1
cable splice

permanent or separable joint between two or more optical fibre cables. It may consist of

optical fibre joints, fibre management systems, closures or other safety devices
3.2
closure
all external housings except, outdoor wall boxes, cabinets or pedestals
3.3
enclosure

indoor and outdoor housings (wall boxes, cabinets, cases, distribution frames or pedestals)

3.4
fibre management system

system to control, protect and store fibres from the incoming to the outgoing fibres. It is

intended for installation within another closure
3.5
fibre splice
permanent or separable splice between two or more optical fibres
---------------------- Page: 10 ----------------------
62134-1 © IEC:2009 – 9 –
3.6
optical fibre closure

housing or compartment of generally closed construction, utilised for the storage, distribution,

or protection of one or more cabled fibre joints. It frequently restores the mechanical,

environmental, strain relief, and moisture resistance, which are provided by cable jackets,

removed at outdoor cable splice locations
3.7
hybrid closure

closure that is used to protect cable joints comprised of both optical fibre and electrically

conductive media
3.8
pressurised closure

sealed closure that provides protection from water ingress by maintaining a continuous

positive regulated internal gas pressure
3.9
non-pressurised closure

closure that provides protection from water ingress by permanently sealed construction,

but does not maintain a continuous regulated internal pressure
3.10
cabinet

container that may enclose connection devices, terminations, apparatus, cabling, and

equipment. It may be either wall-mounted or self-supporting
3.11
pedestal

secure outer enclosure that provides external mechanical and weather protection at a cable

splice or distribution location. It is typically installed above ground-level on a prepared site,

and provides entry for below-grade cables
3.12
distribution frame/panel

structure with terminations for connecting the permanent cabling of a facility in a manner that

inter-connection or cross-connection may be readily made and rearranged to facilitate cabling

administration
3.13
organiser

an organiser contains one or more splice trays (or cassettes) and additional functional

elements and can be a fibre management system or a part of a fibre management system

3.14
single circuit

optical circuit consisting of one or more than one fibre providing one termination

3.15
single element

cable subassembly comprising one or more optical fibres inside a common covering e.g. tube

or inside one groove of a grooved cable (slotted core cable)
NOTE 1 Single elements provide more than one termination or circuit.
NOTE 2 A fibre ribbon is a single element.
---------------------- Page: 11 ----------------------
– 10 – 62134-1 © IEC:2009
3.16
multiple element
subassembly comprising one or more single elements or single ribbons
3.17
single ribbon

can be a single circuit or a single element depending on the fibres’ deployment to carry one or

more circuits
3.18
multiple ribbon
multiple ribbon refers to multiple element
3.19
telecommunications outlet

fixed connecting device where the horizontal cable terminates. The telecommunications outlet

provides the interface to the work area cabling
4 Requirements
4.1 Classification
4.1.1 General
Fibre optic closures shall be classified by the following categories.
– Type
– Style
– Variant
– Arrangement
– Normative reference extensions
– Climatic category
– Assessment level
4.1.2 Type

Closure type identifies a general category that indicates the functionality or application

service use. It may also further identify an appropriate intended service location.

– Type name
Examples:
• Pressurised splice closure
• Non-pressurised splice closure
• Pedestal enclosure
• Distribution frame/panel
• Telecommunications outlet
– Service location
Examples:
• Aerial (overhead cable strand mounting)
---------------------- Page: 12 ----------------------
62134-1 © IEC:2009 – 11 –
• Above ground (exterior building or earth surface placement)
• Buried (direct sub-surface earth placement)

• Underground (within accessible buried protective compartments, usually joined by

cable ducts)
• Inside building (protected habitable environments)
• Universal (no placement restrictions)
4.1.3 Style

Closure style further differentiates categories within a type and may indicate end use

suitability, specialised capabilities, or limitations. A sectional specification may further identify

characteristics to define the closure capabilities or specialised requirements. Style is not

intended to define material or design.
– Installation capability
Examples:
• Full service (all ports split to accept cut or uncut cable/fibre entry)
• New construction (ports accept cable/fibre ends only)

• System expansion (primary ports split, secondary port openings accept cable/fibre

ends only, addition of splice )
– Configuration
Examples:
• Inline (cables/fibres enter both ends)
• Butt or pan (cables/fibres enter on same side)
• Track joint (for interconnection of 2 cables)
• Branch (primary cables/fibres in, multiple secondary cables/fibres out)

• Distribution or add/drop (majority of cabled fibres are uncut, coiled internally for

storage)
4.1.4 Variant

Variant categories define the functional attribute details necessary to specify the fibre

management system, capacities, as well as safety and serviceability requirements, where

appropriate.
– Fibre management system
Examples:
• Fibre separation level (SC, SE, SR, ME, MR)
• Fibre splice types
• Connector type
– Size capacity
Examples:
• Maximum fibre splice or connector storage
• Perimeter envelope dimensions
• Minimum interior volume
– Entry port capacity
Examples:
• Number and size of primary entry ports
• Number and size of secondary entry ports
---------------------- Page: 13 ----------------------
– 12 – 62134-1 © IEC:2009
• Number and size of expansion options
– Access and reuse provisions
Examples:
• Unrestricted (entry and closing without new materials or rework)
• Undamaged (new sealing materials or accessory hardware required)
• Single use (destructive closure removal, undamaged cable/fibre joint)
• Permanent (no future access provisions)
– Metallic cable grounding/shielding
Examples:
• Ground fault surge protection
• Insulated continuity across cable joint
• EMI/RFI radiation
4.1.5 Arrangement

Arrangement defines the delivered form of the closure or sub-component accessory.

Examples:
• Kit (components supplied for field installation)

• Special use kit (requires specialised or use-restricted field installation tooling/fuels/

energy)
• Replacement seals or hardware
• Preassembled closure
• Preterminated closure (supplied with integral cabled fibre)
4.1.6 Normative reference extensions

Normative reference extensions may be used to selectively identify and merge independent

standards, specifications, or other reference documents into blank detail specifications or

detail specifications. When used, they consolidate requirements defining integrated and

hybrid components without duplication or contradiction. They may also be used to incorporate

technical expertise other than fibre optics.

Published reference documents produced by IEC, ISO, or ITU that are consistent with the

scope statements of the relevant specification may be utilised. Published reference

documents produced by other regional or national standardisation or regulating organisations

such as TIA, ETSI, JIS, etc. may be referenced by an informative annex to the blank detail

specification or the detail specification.

Some closure configurations or classifications require unique specification and qualification

provisions that are design-dependent and are not necessary to impose universally. This

accommodates individual designs, specialised field tooling, or unique application processes. It

also provides for complete specification, repeatable performance, and ensures adequate

safety. These extensions are mandatory whenever used to prepare, assemble, or install a

closure for field usage, or to prepare qualification test specimens. The relevant specification

shall identify all stipulations; however, design and style-dependent extensions shall not be

imposed universally.

Requirements imposed by a normative reference extension are mandatory unless specific

exemptions are defined. In the event of conflicting requirements, precedence shall be given,

as follows: generic over sectional over blank detail specification over detail specification.

Examples:
---------------------- Page: 14 ----------------------
62134-1 © IEC:2009 – 13 –

– Utilising IEC 60695 series or other references to establish flammability or smoke

generation limits for closures installed within buildings.

– Merging a fibre management system specification with a closure specification to define an

integrated configuration.

– Utilising IEC 60793-2 and IEC 60794-2 to partially define a closure incorporating

preinstalled optical fibre cables.

– Some commercial and residential building applications may require direct reference to

specific safety codes and regulations, or incorporate other specific material flammability or

toxicology requirements for certain locations.

– Specialised field tooling may require normative reference extensions to implement specific

ocular safety, electrical shock, burn hazard avoidance requirements, or require isolation

procedures to prevent potential ignition of combustible gases.
4.1.7 Environmental category – Service categories
Closures shall be classified by environmental category. This
...

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