IEC 61753-051-02:2022

Fibre optic interconnecting devices and passive components - Performance standard - Part 051-02: Plug-receptacle style single-mode fibre fixed optical attenuators for category C - Controlled environments

IEC 61753-051-02:2022 contains the minimum initial test and measurement requirements and severities which plug-receptacle style single-mode fibre fixed optical attenuators need to satisfy in order to be categorized as meeting the requirements of category C – Controlled environments, as defined in IEC 61753-1:2018, Annex A. This first edition cancels and replaces IEC 61753-051-3 published in 2013. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to IEC 61753‑051‑3:2013:  
change the category from U to C and the test items and their conditions according to IEC 61753-1;
change the requirements reflecting the survey results.

Dispositifs d’interconnexion et composants passifs fibroniques - Norme de performance - Partie 051-02: Affaiblisseurs optiques fixes à fibres unimodales de type fiche-embase pour la catégorie C - Environnements contrôlés

IEC 61753-051-02:2022 contient les exigences minimales initiales d’essai et de mesure, ainsi que les sévérités auxquelles les affaiblisseurs optiques fixes à fibres unimodales de type fiche-embase doivent satisfaire pour être classés comme étant conformes aux exigences de la catégorie C, environnements contrôlés, selon la définition donnée à l’IEC 61753-1:2018, Annexe A. Cette première édition annule et remplace l'IEC 61753-051-3 parue en 2013. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'IEC 61753­051-3:2013:
modification de la catégorie qui était U et devient C et des éléments d'essai et de leurs conditions conformément à l'IEC 61753-1;
modification des exigences reflétant les résultats de l'étude.

General Information

• Status: Published
• Publication Date: 12-Jul-2022
• 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: 13-Jul-2022

Standards Content (sample)

IEC 61753-051-02
Edition 1.0 2022-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fibre optic interconnecting devices and passive components – Performance
standard –

Part 051-02: Plug-receptacle style single-mode fibre fixed optical attenuators for

category C – Controlled environments
Dispositifs d’interconnexion et composants passifs fibroniques – Norme de
performance –
Partie 051-02: Affaiblisseurs optiques fixes à fibres unimodales de type fiche-
embase pour la catégorie C – Environnements contrôlés
IEC 61753-051-02:2022-07(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 61753-051-02
Edition 1.0 2022-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fibre optic interconnecting devices and passive components – Performance
standard –

Part 051-02: Plug-receptacle style single-mode fibre fixed optical attenuators for

category C – Controlled environments
Dispositifs d’interconnexion et composants passifs fibroniques – Norme de
performance –
Partie 051-02: Affaiblisseurs optiques fixes à fibres unimodales de type fiche-
embase pour la catégorie C – Environnements contrôlés
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.20 ISBN 978-2-8322-3967-4

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

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 61753-051-02:2022 © IEC 2022
CONTENTS

FOREWORD ........................................................................................................................... 3

INTRODUCTION ..................................................................................................................... 5

1 Scope .............................................................................................................................. 6

2 Normative references ...................................................................................................... 6

3 Terms and definitions ...................................................................................................... 7

4 Test conditions ................................................................................................................ 8

5 Test report ....................................................................................................................... 8

6 Performance requirements............................................................................................... 8

6.1 Dimensions ............................................................................................................. 8

6.2 Sample size ............................................................................................................ 8

6.3 Test details and requirements ................................................................................. 9

Annex A (normative) Sample size ........................................................................................ 14

Bibliography .......................................................................................................................... 15

Table 1 – Single-mode spectral bands .................................................................................... 8

Table 2 – Test details and requirements for category C .......................................................... 9

Table A.1 – Number of samples for each test ........................................................................ 14

---------------------- Page: 4 ----------------------
IEC 61753-051-02:2022 © IEC 2022 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE
COMPONENTS – PERFORMANCE STANDARD –
Part 051-02: Plug-receptacle style single-mode fibre fixed optical
attenuators for category C – Controlled environments
FOREWORD

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

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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 61753-051-02 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 61753-051-3 published in 2013. This edition

constitutes a technical revision.

This edition includes the following significant technical changes with respect to

IEC 61753-051-3:2013:

a) change the category from U to C and the test items and their conditions according to

IEC 61753-1;
b) change the requirements reflecting the survey results.
---------------------- Page: 5 ----------------------
– 4 – IEC 61753-051-02:2022 © IEC 2022
The text of this International Standard is based on the following documents:
Draft Report on voting
86B/4531/CDV 86B/4588A/RVC

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 in the 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.
---------------------- Page: 6 ----------------------
IEC 61753-051-02:2022 © IEC 2022 – 5 –
INTRODUCTION

The performance standard of single-mode plug style optical attenuators has been published in

2001 as IEC 61753-051-3 [1] . After publication of the corrigendum in 2004, the second edition,

in which test details and requirements were reconsidered, has been published in 2013. In 2019,

the market survey of five Japanese suppliers, two Chinese ones and one Swiss has been carried

out. As a result of the survey, it was revealed that some suppliers could not comply to the

category U requirements. It was decided to withdraw IEC 61753-051-3 and establish this

document for category C reflecting the survey result.
___________
Figures in square brackets refer to the Bibliography.
---------------------- Page: 7 ----------------------
– 6 – IEC 61753-051-02:2022 © IEC 2022
FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE
COMPONENTS – PERFORMANCE STANDARD –
Part 051-02: Plug-receptacle style single-mode fibre fixed optical
attenuators for category C – Controlled environments
1 Scope

This part of IEC 61753 contains the minimum initial test and measurement requirements and

severities which plug-receptacle style single-mode fibre fixed optical attenuators need to satisfy

in order to be categorized as meeting the requirements of category C – Controlled environments,

as defined in IEC 61753-1:2018, Annex A.
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 60793-2-50, Optical fibres – Part 2-50: Product specifications – Sectional specification for

class B single-mode fibres

IEC 60869-1, Fibre optic interconnecting devices and passive components – Fibre optic passive

power control devices – Part 1: Generic specification

IEC 61300-2-1, Fibre optic interconnecting devices and passive components – Basic test and

measurement procedures – Part 2-1: Tests – Vibration (sinusoidal)

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

measurement procedures – Part 2-2: Tests – Mating durability

IEC 61300-2-6, Fibre optic interconnecting devices and passive components – Basic test and

measurement procedures – Part 2-6: Tests – Tensile strength of coupling mechanism

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 61300-2-14, Fibre optic interconnecting devices and passive components – Basic test and

measurement procedures – Part 2-14: Tests – High optical power

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

IEC 61300-2-19, Fibre optic interconnecting devices and passive components – Basic test and

measurement procedures – Part 2-19: Tests – Damp heat (steady state)
---------------------- Page: 8 ----------------------
IEC 61753-051-02:2022 © IEC 2022 – 7 –

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

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

IEC 61300-3-2, Fibre optic interconnecting devices and passive components – Basic test and

measurement procedures – Part 3-2: Examination and measurements – Polarization dependent

loss in a single-mode fibre optic device

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 61300-3-4, Fibre optic interconnecting devices and passive components – Basic test and

measurement procedures – Part 3-4: Examinations and measurements – Attenuation

IEC 61300-3-6, Fibre optic interconnecting devices and passive components – Basic test and

measurement procedures – Part 3-6: Examinations and measurements – 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 61754 (all parts), Fibre optic interconnecting devices and passive components – Fibre optic

connector interfaces

IEC 61755-2-4, Fibre optic interconnecting devices and passive components – Connector

optical interfaces – Part 2-4: Connection parameters of non-dispersion shifted single-mode

physically contacting fibres – Non-angled for reference connection applications

IEC 61755-2-5, Fibre optic interconnecting devices and passive components – Connector

optical interfaces – Part 2-5: Connection parameters of non-dispersion shifted single-mode

physically contacting fibres – Angled for reference connection applications

IEC TS 62627-09, Fibre optic interconnecting devices and passive components – Vocabulary

for passive optical devices
3 Terms and definitions

For the purposes of this document, terms and definitions given in IEC 60869-1, IEC TS 62627-

09 and the following 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
plug-receptacle style single-mode fibre fixed optical attenuator

single-mode fibre fixed optical attenuator which has an optical connector plug interface and an

optical receptacle interface
3.2
attenuation tolerance

allowable attenuation differences from the nominal attenuation for fixed optical attenuators

---------------------- Page: 9 ----------------------
– 8 – IEC 61753-051-02:2022 © IEC 2022
Note 1 to entry: The attenuation tolerance is expressed in ±x dB.
4 Test conditions

Unless otherwise specified, all test methods are in accordance with the IEC 61300 series. Plug-

receptacle style single-mode fibre fixed optical attenuators used for each test are intended to

be previously unstressed new samples but may also be selected from previously used samples

if desired. All measurements shall be carried out under standard atmospheric conditions, unless

otherwise stated. Before the connection with optical connector plugs and adaptors for the test

and the measurements of the optical performances, all optical connector plug end-faces shall

be cleaned.

NOTE IEC 61300-3-35 [2] defines the visual inspection of the end-face for optical connector plugs. IEC TR 62627-

01 [3] describes the cleaning method of optical connectors.

Table 1 is intended to provide guidance on the wavelength ranges of the various spectral bands.

It is not intended to serve as a specification. Values of operating wavelength used in

performance verification shall be specified between the customer and the supplier or shall be

as defined in the manufacturer’s specification.
Table 1 – Single-mode spectral bands
Range
Band Descriptor
O-band Original 1 260 to 1 360
E-band Extended 1 360 to 1 460
S-band Short wavelength 1 460 to 1 530
C-band Conventional 1 530 to 1 565
L-band Long wavelength 1 565 to 1 625
U-band Ultralong wavelength 1 625 to 1 675
NOTE This table is based on ITU-T G. Supplement 39 [4].
5 Test report

Fully documented test reports and supporting evidence shall be prepared and be available for

inspection as evidence that the tests have been carried out and complied with.
6 Performance requirements
6.1 Dimensions

Dimensions of interfaces of an optical connector plug and an optical receptacle shall comply

with the IEC 61754 series as well as those given in appropriate manufacturers’ drawings. When

implementing this document, be aware that there have been problems when using a rigid

interface component (without spring loaded ferrule) with SC plug style adaptors and plugs. See

IEC TR 62627-02:2010, Clause 6 [5].
6.2 Sample size

Sample sizes shall be accordance with Annex A. Number of samples for each test is described

in Table A.1.
---------------------- Page: 10 ----------------------
IEC 61753-051-02:2022 © IEC 2022 – 9 –
6.3 Test details and requirements

The requirements are given only for plug-receptacle style single-mode fibre fixed optical

attenuators. The test details and requirements for category C are shown in Table 2.

Table 2 – Test details and requirements for category C
No Tests Requirements Details
1 Attenuation Deviation of attenuation from the Launch fibre ≤ 2,0 m
tolerance nominal attenuation shall be: length
IEC 61300-3-4, –0,75 dB ≤ deviation of attenuation
Source 1 310 nm and 1 550 nm
insertion method from the nominal attenuation
wavelength
≤ +0,75 dB for the nominal
attenuation: ≤ 0 dB and ≤ 5 dB.
Measurement ≤ 0,2 dB
uncertainty
–15 % dB of the nominal attenuation
≤ deviation of attenuation from the
Optical connector Fibre shall comply with
nominal attenuation ≤ +15 % dB of
plugs for IEC 60793-2-50, B-652.
the nominal attenuation for the
measurement
nominal attenuation: > 5 dB and
Optical connector plugs
≤ 20 dB.
shall be the reference grade
defined in IEC 61755-2-4
(physical contact; PC) or
IEC 61755-2-5 (angled PC;
APC).
2 Return loss ≤ 60 dB (mated) and ≤ 55 dB Source 1 310 nm and 1 550 nm
(unmated) for grade 1 (APC); wavelength
IEC 61300-3-6,
OCWR method ≤ 45 dB (mated) for grade 2 (PC); Measurement ≤ 1,0 dB
uncertainty
≤ 35 dB (mated) for grade 3 (PC);
Optical connector Fibre shall comply with
≤ 26 dB (mated) for grade 4 (PC).
plugs for IEC 60793-2-50, B-652.
measurement
3 Polarization ≤ 0,3 dB for PC and APC Launch fibre ≤ 2,0 m
dependent loss length
(PDL)
Source 1 310 nm and 1 550 nm
IEC 61300-3-2, wavelength
all polarization
Measurement ≤ 0,1 dB
method
uncertainty
---------------------- Page: 11 ----------------------
– 10 – IEC 61753-051-02:2022 © IEC 2022
No Tests Requirements Details
4 High optical Before and after the test, the Input power 100 mW for the nominal
power attenuation tolerance in test no.1 attenuation: ≤ 4,0 dB;
and return loss in test no.2 shall be
IEC 61300-2-14 200 mW for the nominal
met.
attenuation: 3,0 dB
During the test, the attenuation
300 mW tor the nominal
change shall be monitored. During
attenuation: 2,0 dB
the test, the attenuation change from
that at the starting to input high
500 mW for the nominal
optical power of the test shall be :
attenuation: 1,0 dB
–0,3 dB ≤ attenuation change
Source 1 310 nm and/or 1 550 nm
≤ +0,3 dB for the nominal
wavelength
attenuation of 1 dB;
Duration 30 min
–0,5 dB ≤ attenuation change
≤ +0,5 dB for the nominal
Test temperature 60 °C ± 2 °C
attenuation: > 1 dB and ≤ 2 dB;
Relative humidity
93 % % RH
–1,0 dB ≤ attenuation change −3
≤ +1,0 dB for the nominal
NOTE The internal temperature
attenuation: > 2 dB and ≤ 10 dB;
can increase when high
–2,0 dB ≤ attenuation change
optical power is inserted.
≤ +2,0 dB for the nominal
See IEC TR 62627-03-03
attenuation: > 10 dB and ≤ 20 dB.
[6].
After the test, the attenuation
change from the initial value shall
be:
–0,3 dB ≤ attenuation change
≤ +0,3 dB for the nominal
attenuation of 1 dB;
–0,5 dB ≤ attenuation change
≤ +0,5 dB for the nominal
attenuation: > 1 dB and ≤ 2 dB;
–1,0 dB ≤ attenuation change
≤ +1,0 dB for the nominal
attenuation: > 2 dB and ≤ 10 dB;
–2,0 dB ≤ attenuation change
≤ +2,0 dB for the nominal
attenuation: > 10 dB and ≤ 20 dB.
During the test, the return loss shall
be monitored. During the test, the
return loss in test no.2 shall be met.
During the test, the attenuation and
the return loss shall be monitored by
IEC 61300-3-3.

5 Mating durability Before and after the test, the Mating times 200 times each for plug side

attenuation tolerance in test no.1 and receptacle side
IEC 61300-2-2
and return loss in test no.2 shall be
Source 1 310 nm and/or 1 550 nm
met.
wavelength
During the test, the maximum
allowed change in attenuation shall
be:
–0,5 dB ≤ attenuators change
≤ +0,5 dB for nominal attenuation:
≤ 5 dB;
–10 % dB of the nominal attenuation
≤ attenuation change ≤ +10 % dB of
the nominal attenuation for nominal
attenuation: > 5 dB and ≤ 20 dB.
---------------------- Page: 12 ----------------------
IEC 61753-051-02:2022 © IEC 2022 – 11 –
No Tests Requirements Details
6 Tensile strength Before and after the test, the Force 40 N ± 1 N
of coupling attenuation tolerance in test no.1
Rate of strength 2 N/s
mechanism and return loss in test no.2 shall be
met.
Measurement ≤ 5 s
IEC 61300-2-6
interval
During the test, the maximum
allowed change in attenuation shall
Duration 60 s
be:
Source 1 310 nm and/or 1 550 nm
–0,5 dB ≤ attenuators change
wavelength
≤ +0,5 dB for nominal attenuation:
≤ 5 dB;
–10 % dB of the nominal attenuation
≤ attenuation change ≤ +10 % dB of
the nominal attenuation for nominal
attenuation: > 5 dB and ≤ 20 dB.
During the test, the return loss shall
be monitored. During the test, the
return loss in test no.2 shall be met.
During the test, the attenuation shall
be monitored by IEC 61300-3-3.
7 Cold Before and after the test, the Temperature −10 °C ± 2 °C
attenuation tolerance in test no.1
IEC 61300-2-17
Duration of 96 h
and return loss in test no.2 shall be
exposure
met.
The attenuation change after the
test from the initial value shall be:
–0,3 dB ≤ attenuation change
≤ +0,3 dB.
During the test, the maximum
allowed change in attenuation shall
be:
–0,5 dB ≤ attenuation change
≤ +0,5 dB for nominal attenuation:
≤ 5 dB;
–10 % dB of the nominal attenuation
≤ attenuation change ≤ +10 % dB of
the nominal attenuation for nominal
attenuation: > 5 dB and ≤ 20 dB.
During the test, the attenuation shall
be monitored by IEC 61300-3-3.
8 Dry heat Before and after the test, the Temperature
+60 °C ± 2 °C
attenuation tolerance and return loss
IEC 61300-2-18
Duration of 96 h
of test no.1 and no.2 shall be met.
exposure
The attenuation change after the
test shall be within ±0,3 dB of the
initial value.
During the test, the maximum
allowed change in attenuation shall
be:
–0,5 dB ≤ attenuation change
≤ +0,5 dB for nominal attenuation:
≤ 5 dB;
–10 % dB of the nominal attenuation
≤ attenuation change ≤ +10 % dB of
the nominal attenuation for nominal
attenuation: > 5 dB and ≤ 20 dB.
During the test, the attenuation shall
be monitored by IEC 61300-3-3.
---------------------- Page: 13 ----------------------
– 12 – IEC 61753-051-02:2022 © IEC 2022
No Tests Requirements Details
9 Damp heat Before and after the test, the Temperature
+40 °C ± 2 °C
(steady state) attenuation tolerance and return loss
Relative humidity
of test no.1 and no.2 shall be met.
93 % % RH
IEC 61300-2-19 −3
During the test, the attenuation
Duration of 96 h
change shall be monitored. The
exposure
attenuation change from that at the
starting time of the test shall be:
Measurement ≤ 1 h
interval
–0,5 dB ≤ attenuation change
≤ +0,5 dB for nominal attenuation:
≤ 5 dB;
–10 % dB of the nominal attenuation
≤ attenuation change ≤ +10 % dB of
the nominal attenuation for nominal
attenuation: > 5 dB and ≤ 20 dB.
During the test, the return lo
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