IEC 61753-111-07:2021

Fibre optic interconnecting devices and passive components - Performance standard - Part 111-07: Sealed closures - Category A - Aerial

IEC 61753-111-07:2021 contains the minimum tests, test severities and measurement requirements which a sealed fibre optic closure need to meet in order to be categorised as meeting the IEC standard for category A – Aerial, as defined in Table A.13 of IEC 61753‑1:2018. Free breathing closures are not covered in this document. This first edition cancels and replaces IEC 61753-111-7 published in 2009. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to IEC 61753‑111‑7:  
terms and definitions updated according to IEC 61753-1:2018 and IEC 61756-1:2019;
detailed test severities added for UV light and fungus resistance tests of materials;
test severities updated according to IEC 61753-1:2018;
test overpressure for sealing tests changed to 20 kPa;
pass-fail criterion of pressure loss during test added to mechanical sealing tests;
laboratory test conditions harmonized with IEC 61300-1 to +23 °C ± 5 °C, unless otherwise specified;
addition of B-657 fibre types with minimum bending radius of stored fibres according to IEC 61756-1:2019;
vibration sealing test changed to 10 Hz, 3 mm amplitude and 1 000 000 cycles;
reduced loads added in cable retention test for small diameter cables and tubes;
reduced loads for cable axial compression test for small diameter cables and tubes;
duration of the cycles in torsion and bending test added;
free fall test removed (is covered now by the optical shock test);
duration of the assembly and disassembly test reduced to 5 cycles;
duration of the change of temperature reduced to 12 cycles.

Dispositifs d'interconnexion et composants passifs fibroniques - Norme de performance - Partie 111-07: Boîtiers étanches pour la catégorie A - Aériens

IEC 61753-111-07:2021 contient les essais minimaux, ainsi que les sévérités d’essai et les exigences de mesure minimales auxquels il est nécessaire qu’un boîtier à fibres optiques étanche satisfasse afin de pouvoir être classé comme satisfaisant à la norme IEC pour la catégorie A – Aériens, telle qu’elle est définie dans le Tableau A.13 de l’IEC 61753‑1:2018. Les boîtiers à ventilation libre ne sont pas couverts par le présent document. Cette première édition annule et remplace l’IEC 61753-111-7 parue en 2009. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'IEC 61753‑111‑7:
a. mise à jour des termes et définitions conformément à l’IEC 61753-1:2018 et à l’IEC 61756‑1:2019;
b. ajout des sévérités détaillées pour les essais de résistance des matériaux à la lumière UV et aux moisissures;
c. mise à jour des sévérités d’essai selon la nouvelle édition de l’IEC 61753-1:2018;
d. modification à 20 kPa de la surpression d’essai pour les essais d’étanchéité;
e. ajout du critère d’acceptation/de rejet de la perte de pression en cours d’essai aux essais d’étanchéité mécanique;
f. harmonisation des conditions d’essai en laboratoire avec l’IEC 61300-1 à une température de +23 °C ± 5 °C, sauf spécification contraire;
g. ajout des fibres de type B-657. rayon de courbure minimal des fibres stockées conformément à l’IEC 61756-1:2019;
h. modification de l’essai d’étanchéité aux vibrations (fréquence de 10 Hz, amplitude de 3 mm et 1 000 000 cycles);
i. ajout de charges réduites dans l’essai de rétention du câble pour les câbles et les tubes de petit diamètre;
j. ajout de charges réduites pour l’essai de compression axiale du câble pour les câbles et les tubes de petit diamètre;
k. ajout de la durée des cycles dans l’essai de torsion et de courbure;
l. suppression de l’essai de chute libre (couvert désormais par l'essai de choc optique);
m. réduction à 5 cycles de la durée d’essai de montage et de démontage;
n. réduction à 12 cycles de la durée de variations de température.

General Information

• Status: Published
• Publication Date: 02-Sep-2021
• ICS: 33.180.20 - Fibre optic interconnecting devices
• Technical Committee: SC 86B - Fibre optic interconnecting devices and passive components
• Current Stage: PPUB - Publication issued
• Completion Date: 03-Sep-2021

Standards Content (sample)

IEC 61753-111-07
Edition 1.0 2021-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Fibre optic interconnecting devices and passive components – Performance
standard –
Part 111-07: Sealed closures – Category A – Aerial
Dispositifs d’interconnexion et composants passifs fibroniques – Norme de
performance –
Partie 111-07: Boîtiers étanches pour la catégorie A – Aériens
IEC 61753-111-07:2021-09(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 61753-111-07
Edition 1.0 2021-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Fibre optic interconnecting devices and passive components – Performance
standard –
Part 111-07: Sealed closures – Category A – Aerial
Dispositifs d’interconnexion et composants passifs fibroniques – Norme de
performance –
Partie 111-07: Boîtiers étanches pour la catégorie A – Aériens
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.20 ISBN 978-2-8322-1023-3

Warning! Make sure that you obtained this publication from an authorized distributor.

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® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 61753-111-07:2021 © IEC 2021
CONTENTS

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

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

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

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

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

4 Abbreviated terms ......................................................................................................... 11

5 General requirements .................................................................................................... 11

5.1 Storage, transportation and packaging .................................................................. 11

5.2 Installation and intervention .................................................................................. 11

5.3 Marking and identification ..................................................................................... 12

5.4 Materials ............................................................................................................... 12

5.5 Safety ................................................................................................................... 12

6 Test ............................................................................................................................... 13

6.1 General ................................................................................................................. 13

6.2 Test sample preparation ....................................................................................... 13

6.3 Test and measurement methods ........................................................................... 13

6.4 Sample size .......................................................................................................... 13

6.5 Pass/fail criteria .................................................................................................... 14

6.6 Test report ............................................................................................................ 14

7 Performance requirements............................................................................................. 14

7.1 Sealing, optical and visual examination pass/fail criteria ....................................... 14

7.2 Sealing performance requirements ........................................................................ 16

7.3 Optical performance requirements ........................................................................ 18

Annex A (normative) Sample definition ................................................................................ 21

A.1 Fibre type for test sample ..................................................................................... 21

A.2 Closure optical test sample configuration .............................................................. 22

Annex B (normative) Intervention and reconfiguration/resplicing .......................................... 25

B.1 Handling of the closure ......................................................................................... 25

B.2 Movements of splice trays to gain access to the actual fibre circuits ..................... 25

B.3 Addition and connection of drop cables ................................................................. 25

B.4 Rearranging splices .............................................................................................. 25

B.5 Rearranging optical connector sets, patchcords or pigtails (when applicable) ........ 26

B.6 Addition and connection of extra FMS elements .................................................... 26

B.7 Handling of the closure ......................................................................................... 26

Bibliography .......................................................................................................................... 27

Figure A.1 – Track/spur joint configuration sample ................................................................ 22

Figure A.2 – Optical circuits in track/spur joint closure .......................................................... 23

Figure A.3 – Distribution joint configuration sample............................................................... 23

Figure A.4 – Optical circuits in the distribution joint closure .................................................. 24

Table 1 – Sealing, optical and visual examination pass/fail criteria ....................................... 15

Table 2 – Sealing performance requirements ........................................................................ 16

Table 3 – Optical performance requirements ......................................................................... 19

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IEC 61753-111-07:2021 © IEC 2021 – 3 –

Table A.1 – Fibre references for IEC 60793-2-50, sub-category B-652.D .............................. 21

Table A.2 – Fibre references for IEC 60793-2-50, sub-category B-657.A1............................. 21

Table A.3 – Fibre references for IEC 60793-2-50, sub-category B-657.A2............................. 22

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– 4 – IEC 61753-111-07:2021 © IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONNECTING DEVICES AND
PASSIVE COMPONENTS – PERFORMANCE STANDARD –
Part 111-07: Sealed closures – Category A – Aerial
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

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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.

IEC 61753-111-07 has been prepared by subcommittee 86B: Fibre optic interconnecting

devices and passive components, of IEC technical committee 86: Fibre optics. It is an

International Standard.

This first edition cancels and replaces IEC 61753-111-7 published in 2009. This edition

constitutes a technical revision.

This edition includes the following significant technical changes with respect to

IEC 61753-111-7:

a) terms and definitions updated according to IEC 61753-1:2018 and IEC 61756-1:2019;

b) detailed test severities added for UV light and fungus resistance tests of materials;

c) test severities updated according to IEC 61753-1:2018;
d) test overpressure for sealing tests changed to 20 kPa;

e) pass-fail criterion of pressure loss during test added to mechanical sealing tests;

---------------------- Page: 6 ----------------------
IEC 61753-111-07:2021 © IEC 2021 – 5 –

f) laboratory test conditions harmonized with IEC 61300-1 to +23 °C ± 5 °C, unless otherwise

specified;

g) addition of B-657 fibre types with minimum bending radius of stored fibres according to

IEC 61756-1:2019;
h) vibration sealing test changed to 10 Hz, 3 mm amplitude and 1 000 000 cycles;

i) reduced loads added in cable retention test for small diameter cables and tubes;

j) reduced loads for cable axial compression test for small diameter cables and tubes;

k) duration of the cycles in torsion and bending test added;
l) free fall test removed (is covered now by the optical shock test);
m) duration of the assembly and disassembly test reduced to 5 cycles;
n) duration of the change of temperature reduced to 12 cycles.
The text of this International Standard is based on the following documents:
Draft Report on voting
86B/4493/FDIS 86B/4512/RVD

Full information on the voting for its approval can be found in the report on voting indicated in

the above table.
The language used for the development of this International Standard is English.

This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in

accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available

at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are

described in greater detail at www.iec.ch/standardsdev/publications.

A list of all parts of IEC 61753 series, published under the general title Fibre optic

interconnecting devices and passive components – Performance standard, can be found on the

IEC website.

The committee has decided that the contents of this document will remain unchanged until the

stability date indicated on the IEC website under webstore.iec.ch in the data related to the

specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

IMPORTANT – The "colour inside" logo on the cover page of this document indicates

that it contains colours which are considered to be useful for the correct understanding

of its contents. Users should therefore print this document using a colour printer.

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– 6 – IEC 61753-111-07:2021 © IEC 2021
INTRODUCTION

Performance standards for sealed closures define the requirements for standard optical

performance under a set of specified conditions. This subpart of the IEC 61753-111 series

contains a series or a set of tests and measurements with clearly stated conditions, severities

and pass/fail criteria. The set of tests 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 optic closures during all phases

of their life – from acquiring materials to manufacturing, distribution, use, and end-of-life

treatment (i.e. re-use, recycling – recovery and disposal) – is not part of this document, but will

be covered in the generic 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 is 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 product should be evaluated using the procedures

recommended in IEC 62005 (all parts).
---------------------- Page: 8 ----------------------
IEC 61753-111-07:2021 © IEC 2021 – 7 –
FIBRE OPTIC INTERCONNECTING DEVICES AND
PASSIVE COMPONENTS – PERFORMANCE STANDARD –
Part 111-07: Sealed closures – Category A – Aerial
1 Scope

This part of IEC 61753 contains the minimum tests, test severities and measurement

requirements which a sealed fibre optic closure need to meet in order to be categorised as

meeting the IEC standard for category A – Aerial, as defined in Table A.13 of IEC 61753-1:2018.

Free breathing closures are not covered in this document.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

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

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 or cable retention

IEC 61300-2-5, Fibre optic interconnecting devices and passive components – Basic test and

measurement procedures – Part 2-5: Tests – Torsion

IEC 61300-2-9, Fibre optic interconnecting devices and passive components – Basic test and

measurement procedures – Part 2-9: Tests – Shock

IEC 61300-2-11, Fibre optic interconnecting devices and passive components – Basic test and

measurement procedures – Part 2-11: Tests – Axial compression

IEC 61300-2-12, Fibre optic interconnecting devices and passive components – Basic test and

measurement procedures – Part 2-12: Tests – Impact

IEC 61300-2-22, Fibre optic interconnecting devices and passive components – Basic test and

measurement procedures – Part 2-22: Tests – Change of temperature

IEC 61300-2-26, Fibre optic interconnecting devices and passive components – Basic test and

measurement procedures – Part 2-26: Tests – Salt mist
---------------------- Page: 9 ----------------------
– 8 – IEC 61753-111-07:2021 © IEC 2021

IEC 61300-2-33, Fibre optic interconnecting devices and passive components – Basic test and

measurement procedures – Part 2-33: Tests – Assembly and disassembly of fibre optic

mechanical splices, fibre management systems and closures

IEC 61300-2-34, Fibre optic interconnecting devices and passive components – Basic test and

measurement procedures – Part 2-34: Tests – Resistance to solvents and contaminating fluids

of interconnecting components and closures

IEC 61300-2-37, Fibre optic interconnecting devices and passive components – Basic test and

measurement procedures – Part 2-37: Tests – Cable bending for fibre optic closures

IEC 61300-2-38, Fibre optic interconnecting devices and passive components – Basic test and

measurement procedures – Part 2-38: Tests – Sealing for pressurized fibre optic closures

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 61753-1:2018, Fibre optic interconnecting devices and passive components – Performance

standard – Part 1: General and guidance

IEC 61756-1:2019, Fibre optic interconnecting devices and passive components – Interface

standard for fibre management systems – Part 1: General and guidance

ISO 4892-3, Plastics – Methods of exposure to laboratory light sources – Fluorescent UV lamps

3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following

addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
distribution joint

protective housing that allows the splicing of the fibres from a feeder cable to the fibres of

multiple smaller drop cable and that allows easy fibre access, maintenance, re-arrangement

and addition of fibre circuits or passive optical components
Note 1 to entry: Storage of uncut fibres and fibre cable elements is allowed.

Note 2 to entry: A distribution joint is typically used in access and distribution networks.

3.2
excursion loss

change in optical attenuation during the slow variations of environmental parameters

Note 1 to entry: Excursion loss is the ± deviation from the original value of the transmitted power at the start of the

test.
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IEC 61753-111-07:2021 © IEC 2021 – 9 –
3.3
fibre management system

system to control, protect and store splices, connectors, passive optical components and fibres

from incoming to outgoing cables

Note 1 to entry: A fibre management system is intended for installation within a protective housing.

Note 2 to entry: A fibre management system is often called an "organiser".
[SOURCE: IEC 61756-1:2019, 3.1.2]
3.4
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 closure
3.5
installation

activities and handling operations to establish and install a protective housing including the

cables or by adding new circuits, splices, connectors and other components
3.6
installation conditions

circumstances that shall be fulfilled for an installation, which includes environmental conditions,

size interface between the protective housing and the fibre management system, optical

performance, additional/special conditions and safety requirements
3.7
multiple element
physical fibre separation level consisting of more than one single element

Note 1 to entry: This separation level has fibres from multiple cable elements on one splice tray and is also called

mass storage. It is the lowest (worst) degree of physical circuit separation.
[SOURCE: IEC 61756-1:2019, 3.1.3]
3.8
multiple ribbon

multiple element consisting of multiple optical fibres (circuits) arranged in ribbons (fibres in

parallel) which are also arranged (for example, in stacks)
[SOURCE: IEC 61756-1:2019, 3.1.5]
3.9
residual loss
change in optical power between initial and final measurements
3.10
sealed closure

watertight and dust-tight housing that can hold a varying overpressure or underpressure caused

by temperature changes or atmospheric pressure changes

Note 1 to entry: There is no exchange of air with the outside environment when exposed to temperatures over the

specified operating temperature range.

Note 2 to entry: Although sealed closures are often referred to as hermetic sealed closures, humidity can enter the

inner closure by diffusion.

[SOURCE: IEC 61753-1:2018, 3.17, modified – Note 2 to entry has been rephrased, and Note 3

to entry and Note 4 to entry have been deleted.]
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– 10 – IEC 61753-111-07:2021 © IEC 2021
3.11
single circuit

physical fibre separation level where the optical circuit consists of one fibre (single fibre), or

more than one fibre, providing all services for one subscriber

Note 1 to entry: This fibre separation level has the fibre(s) of only one customer on one splice tray. It is the highest

(best) degree of physical circuit separation.
[SOURCE: IEC 61756-1:2019, 3.1.7]
3.12
single element

physical fibre separation level in the cable subassembly comprising one or more optical fibres

inside a common covering for example in a tube or inside one groove of a grooved cable (slotted

core cable)
Note 1 to entry: A single element provides services to more than one subscriber.

Note 2 to entry: This fibre separation level has all fibres from a cable element (e.g. loose tube) on one splice tray.

It is an intermediate degree of physical circuit separation (between single circuit and multiple element).

[SOURCE: IEC 61756-1:2019, 3.1.9]
3.13
single ribbon
single element designed to carry all fibres of one ribbon

Note 1 to entry: Depending on the fibres deployment, a single ribbon can contain all the fibres of one circuit (single

circuit) or the fibres of more than one circuit (single element).
[SOURCE: IEC 61756-1:2019, 3.1.11]
3.14
splice tray

structure that organises and controls storage of fibre splices in an orderly manner, together with

the associated excess uncabled fibre length
Note 1 to entry: It can be a part of a fibre management system.
...