IEC 61753-091-02:2022

Fibre optic interconnecting devices and passive components - Performance standard - Part 091-02: Non-connectorized 3-port incompletely circulated single-mode fibre optic circulators for category C - Controlled environments

IEC 61753-091-02:2022 contains the minimum test and measurement requirements and severities which a fibre optic circulator as specified by IEC 62077 is expected to satisfy in order to be categorized as meeting the requirements of circulators used in controlled environments as specified in IEC 61753-1:2018 and IEC 61753-1:2018/AMD1:2020. The requirements cover non-connectorized single-mode fibre 3-port incompletely circulated type optical circulators for category C used in controlled environments.
This first edition cancels and replaces IEC 61753-091-2 published in 2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to IEC 61753-091-2:
a) change of title adding the 3-port incompletely circulated type;
b) harmonization of terms and definitions with those in IEC 61977 and IEC TS 62627-09;
c) harmonization of test items and their conditions with IEC 61753-1:2018 and IEC 61753-1:2018/AMD1:2020.

Dispositifs d’interconnexion et composants passifs fibroniques - Norme de performance - Partie 091-02: Circulateurs fibroniques à circulation partielle à 3 ports, non connectorisés et équipés de fibres optiques unimodales, pour la catégorie C - Environnements contrôlés

IEC 61753-091-02:2022 contient les sévérités et les exigences minimales d'essai et de mesure auxquelles un circulateur fibronique tel que spécifié dans l’IEC 62077 est censé satisfaire afin d'être classé comme conforme aux exigences des circulateurs utilisés dans des environnements contrôlés, tels que spécifiés dans l’IEC 61753-1:2018 et l’IEC 61753‑1:2018/AMD1:2020. Les exigences couvrent les circulateurs optiques à circulation partielle à 3 ports, non connectorisés et équipés de fibres optiques unimodales, pour la catégorie°C, utilisés dans des environnements contrôlés. Cette première édition annule et remplace l'IEC 61753-091-2 parue en 2012. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l’IEC 61753‑091‑2:
a) modification du titre pour ajouter le type à circulation partielle à 3 ports;
b) harmonisation des termes et définitions avec ceux de l’IEC 61977 et de l’IEC TS 62627‑09;
c) harmonisation des éléments soumis à essai et des conditions d’essai avec l’IEC 61753‑1:2018 et l’IEC 61753‑1:2018/AMD1:2020.

General Information

• Status: Published
• Publication Date: 15-Feb-2022
• ICS: 33.180.20 - Fibre optic interconnecting devices
• Technical Committee: SC 86B - Fibre optic interconnecting devices and passive components
• Drafting Committee: WG 7 - TC 86/SC 86B/WG 7
• Current Stage: PPUB - Publication issued
• Start Date: 16-Feb-2022
• Completion Date: 18-Feb-2022

Relations

• Replaces: IEC 61753-091-2:2012 - Fibre optic interconnecting devices and passive components - Performance standard - Part 091-2: Non-connectorized single-mode fibre optic pigtailed circulators for category C - Controlled environments
• Effective Date: 05-Sep-2023

Overview

IEC 61753-091-02:2022 is an international performance standard developed by the International Electrotechnical Commission (IEC) focusing on non-connectorized 3-port incompletely circulated single-mode fibre optic circulators designed for category C controlled environments. This standard specifies the minimum test and measurement requirements that fibre optic circulators must meet to ensure reliable performance in controlled environment applications. It replaces and updates the earlier 2012 edition (IEC 61753-091-2), incorporating significant technical revisions including harmonized terminology and testing protocols aligned with related IEC standards.

This standard targets fibre optic devices without connectors, specifically three-port circulators operating with single-mode fibre. It sets comprehensive criteria covering mechanical dimensions, environmental testing, optical performance, and durability to guarantee functionality in precise and stable environments such as laboratories, data centers, and specialized telecommunications settings.

Key Topics

• Scope and Application: Details requirements for non-connectorized 3-port incompletely circulated single-mode fibre optic circulators used in controlled environments (category C). It defines performance thresholds for optical and mechanical properties based on IEC 62077 generic specifications.

• Test and Measurement Requirements: Includes rigorous protocols for vibration resistance, fibre retention, torsion, shock, high optical power endurance, and environmental factors like cold, dry heat, damp heat, and temperature variation.

• Performance Parameters: Specifies criteria for optical performance such as polarization dependent loss, insertion loss, return loss, directivity, transient loss, and polarization mode dispersion.

• Sample Size and Testing Conditions: Defines minimum sample sizes and test conditions to ensure statistically valid and reproducible results, aligned with the general guidance of IEC 61753-1:2018 and its amendment IEC 61753-1:2018/AMD1:2020.

• Harmonization of Terminology: Aligns with IEC 61977 and IEC TS 62627-09 to provide clear, consistent definitions vital for global interoperability and mutual understanding in passive optical component manufacturing and testing.

Applications

IEC 61753-091-02:2022 is essential for manufacturers, test laboratories, and quality assurance teams involved in the design and evaluation of fibre optic components used in controlled environments. Its practical applications include:

• Telecommunications Infrastructure: Ensuring fibre optic circulators maintain performance standards in central office facilities and controlled telecommunication hubs.

• Laboratory and Research Settings: Providing reliable single-mode fibre optic circulators that meet strict environmental and optical performance demands.

• Data Centers: Supporting the deployment of high-precision optical interconnects requiring durability under controlled humidity and temperature.

• Optical Component Manufacturing: Guiding production and quality control processes to satisfy international requirements for controlled environment certification.

Adherence to IEC 61753-091-02 improves product reliability, extends lifespan, and enhances system integrity where precise optical routing and signal management are critical.

Related Standards

• IEC 62077: Provides generic specifications for fibre optic circulators, forming the foundational requirements referenced in IEC 61753-091-02.

• IEC 61753-1:2018 and IEC 61753-1:2018/AMD1:2020: General and guidance performance standards for fibre optic interconnecting devices and passive components, establishing environmental categories and test conditions.

• IEC 61977 and IEC TS 62627-09: Standardize the vocabulary and definitions for passive optical devices, ensuring consistent terminology across the industry.

• IEC 61300 Series: Covers basic test and measurement procedures used to assess the mechanical and optical properties of fibre optic devices as referenced throughout IEC 61753-091-02.

• IEC 60793-2-50 and IEC 60794-2-50: Detail specifications for single-mode optical fibres and cables utilized in the assembly of fibre optic interconnecting devices.

By integrating these related standards, IEC 61753-091-02 supports a cohesive framework for the development, testing, and deployment of fibre optic circulators with guaranteed performance in controlled environmental conditions.

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Keywords: IEC 61753-091-02, fibre optic circulators, single-mode fibre optic devices, non-connectorized circulators, 3-port circulators, controlled environments, category C, optical performance standard, fibre optic interconnecting devices, IEC 62077, environmental testing, optical component standards, fibre optic industry compliance.

Standards Content (Sample)

IEC 61753-091-02 ®
Edition 1.0 2022-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fibre optic interconnecting devices and passive components – Performance
standard –
Part 091-02: Non-connectorized 3-port incompletely circulated single‑mode fibre
optic circulators for category C – Controlled environments

Dispositifs d'interconnexion et composants passifs fibroniques – Norme de
performance –
Partie 091-02: Circulateurs fibroniques à circulation partielle à 3 ports, non
connectorisés et équipés de fibres optiques unimodales, pour la catégorie C –
Environnements contrôlés
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IEC 61753-091-02 ®
Edition 1.0 2022-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fibre optic interconnecting devices and passive components – Performance

standard –
Part 091-02: Non-connectorized 3-port incompletely circulated single‑mode fibre

optic circulators for category C – Controlled environments

Dispositifs d'interconnexion et composants passifs fibroniques – Norme de

performance –
Partie 091-02: Circulateurs fibroniques à circulation partielle à 3 ports, non

connectorisés et équipés de fibres optiques unimodales, pour la catégorie C –

Environnements contrôlés
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.20 ISBN 978-2-8322-1069-1

– 2 – IEC 61753-091-02:2022 © IEC 2022
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Test conditions . 7
5 Test report . 7
6 Reference components . 7
7 Performance requirements. 7
7.1 Dimensions . 7
7.2 Sample size . 7
7.3 Test details and requirements . 8
Annex A (normative) Sample size . 13
Bibliography . 14

Table 1 – Single-mode spectral bands . 7
Table 2 – Test details and requirements (1 of 5) . 8
Table A.1 – Sample size . 13

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONNECTING DEVICES AND
PASSIVE COMPONENTS – PERFORMANCE STANDARD –

Part 091-02: Non-connectorized 3-port incompletely circulated
single‑mode fibre optic circulators for category C –
Controlled environments
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization 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
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Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
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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 61753-091-02 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 61753-091-2 published in 2012. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to
IEC 61753-091-2:
a) change of title adding the 3-port incompletely circulated type;
b) harmonization of terms and definitions with those in IEC 61977 and IEC TS 62627-09;
c) harmonization of test items and their conditions with IEC 61753-1:2018 and
IEC 61753-1:2018/AMD1:2020.
– 4 – IEC 61753-091-02:2022 © IEC 2022
The text of this International Standard is based on the following documents:
Draft Report on voting
86B/4555/FDIS 86B/4578/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 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.
Future standards in this series will carry the new general title as cited above. Titles of existing
standards in this series will be updated at the time of the next edition.
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.
FIBRE OPTIC INTERCONNECTING DEVICES AND
PASSIVE COMPONENTS – PERFORMANCE STANDARD –

Part 091-02: Non-connectorized 3-port incompletely circulated
single‑mode fibre optic circulators for category C –
Controlled environments
1 Scope
This part of IEC 61753 contains the minimum test and measurement requirements and
severities which a fibre optic circulator as specified by IEC 62077 is expected to satisfy in order
to be categorized as meeting the requirements of circulators used in controlled environments
as specified in IEC 61753-1:2018 and IEC 61753-1:2018/AMD1:2020. The requirements cover
non-connectorized single-mode fibre 3-port incompletely circulated type optical circulators for
category C used in controlled environments.
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 60794-2-50, Optical fibre cables – Part 2-50: Indoor cables – Family specification for
simplex and duplex cables for use in terminated cable assemblies
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 61300-2-14, 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)

– 6 – IEC 61753-091-02:2022 © IEC 2022
IEC 61300-2-22, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-22: Tests – Change of temperature
IEC 61300-2-42, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-42: Tests – Static side load for strain relief
IEC 61300-2-44, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-44: Tests – Flexing of the strain relief of fibre optic devices
IEC 61300-3-2, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-2: Examinations 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 61300-3-7, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-7: Examinations and measurements – Wavelength
dependence of attenuation and return loss of single mode components
IEC 61300-3-20, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-20: Examinations and measurements – Directivity of fibre
optic branching devices
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 61300-3-32, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-32: Examinations and measurements – Polarization mode
dispersion measurement for passive optical components
IEC 61753-1:2018, Fibre optic interconnecting devices and passive components – Performance
standard – Part 1: General and guidance
IEC 61753-1:2018/AMD1:2020
IEC 62077, Fibre optic interconnecting devices and passive components – Fibre optic
circulators – Generic specification
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, the terms and definitions given in IEC 62077 and
IEC TS 62627-09 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

4 Test conditions
Unless otherwise specified, all test methods are in accordance with IEC 61300 series [1] . The
samples shall be terminated onto single-mode fibres as per IEC 60793-2-50, category B-652.B,
B-652.D or B-657 in either coated fibres (primary and secondary) or reinforced cable format as
per IEC 60794-2-50. Single-mode fibre optic circulators 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. If the device is provided with an active temperature control, this shall be set
at the set-point specified by the manufacturer.
The requirements apply to every combination of input and output port.
Table 1 is intended to provide guidance on the wavelength ranges of the various spectral bands.
It is not intended for specification. Values of operating wavelength used in performance
verification shall be specified between the customer and supplier, or shall be as defined in the
manufacturer’s specification.
Table 1 – Single-mode spectral bands
Band Descriptor Range
nm
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
SOURCE: ITU-T G. Supplement 39 [2].

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 Reference components
The test for these components does not require the use of reference components.
7 Performance requirements
7.1 Dimensions
Dimensions shall comply with those given in appropriate manufacturers’ drawings.
7.2 Sample size
Sample sizes for the tests are defined in Annex A.
___________
Numbers in square bracket refer to the Bibliography.

– 8 – IEC 61753-091-02:2022 © IEC 2022
7.3 Test details and requirements
The test details and requirements are shown in Table 2. The requirements are given only for a
non-connectorized 3-port incompletely circulated single-mode fibre optic circulators. A minimum
length of fibre or cable of 2,0 m per port shall be included in all climatic and environmental test
chambers.
Table 2 – Test details and requirements (1 of 5)
No Tests Requirements Details
1 Attenuation ≤ 0,8 dB: O-band, C-band, L- Launch fibre length: ≥ 2,0 m
(insertion loss) band
Polarization state: Any polarization
IEC 61300-3-7 ≤ 1,0 dB: (C+L)-band
Measurement 0,1 dB
uncertainty:
2 Isolation ≥ 38 dB: O-band, C-band, L- Launch fibre length: ≥ 2,0 m
band
IEC 61300-3-7 Polarization state: Any polarization
≥ 30 dB: (C+L)-band
Measurement 0,5 dB
uncertainty:
Other conditions: IEC 61300-3-7 defines the
method to measure insertion
loss. However, it can apply to
the measurement of isolation,
because in the case of a
circulator, isolation is the
insertion loss measured in the
opposite direction to test no.1
3 Return loss ≥ 50 dB (grade U) Launch fibre length: ≥ 2,0 m
IEC 61300-3-7
Polarization state: Any polarization
Measurement
1 dB
uncertainty:
Other conditions: Ports not under test shall be
optically terminated to avoid
unwanted reflections
contributing to the
measurement
4 Directivity ≥ 50 dB Launch fibre length: ≥ 2,0 m
IEC 61300-3-20
Polarization state: Any polarization
Measurement 1 dB
uncertainty:
5 Polarization ≤ 0,10 dB: O-band, C-band, L- Launch fibre length: ≥ 2,0 m
dependent band
Measurement 0,05 dB
loss
≤ 0,15 dB: (C+L)-band uncertainty:
IEC 61300-3-2
6 Polarization ≤ 0,10 ps Launch fibre length: ≥ 2,0 m
mode dispersion
Measurement 0,05 ps
IEC 61300-3-32 uncertainty:
Table 2 (2 of 5)
No Tests Requirements Details
7 High optical Before and after the test, the Optical power: 300 mW
power limits of insertion loss, isolation
Wavelength: 1 550 nm
and return loss of test no. 1, 2
IEC 61300-2-14
and 3 shall be met.
Duration of the optical 30 min
power exposure:
During the test, change in
attenuation is monitored. During
Temperature: 60 °C ± 2 °C
and after the test, change in
attenuation shall be within ±0,3
Relative humidity:
+
dB of the initial value.
93 % % RH
−
During the test, the change in
NOTE Different wavelength is
isolation is monitored. The sum
acceptable when there is a
of the initial value and the
negotiation between customer
change of the isolation shall be
and supplier.
within the value defined at test
no. 2.
During the test, the change in
return loss is monitored. The
sum of the initial value and the
change of the return loss shall
be within the value defined at
test no. 3.
Transient loss during the test
shall be in accordance with
IEC 61300-3-3.
8 Cold Before and after the test, the Temperature: –10 °C ± 2 °C
limits of insertion loss, isolation
IEC 61300-2-17
Duration of exposure: 96 h
and return loss of test no. 1, 2
and 3 shall be met.
During the test, change in
attenuation is monitored. During
and after the test, change in
attenuation shall be within ±0,3
dB of the initial value.
During the test, the change in
isolation is monitored. The sum
of the initial value and the
change of the isolation shall be
within the value defined at test
no. 2.
During the test, the change in
return loss is monitored. The
sum of the initial value and the
change of the return loss shall
be within the value defined at
test no. 3.
Transient loss during the test
shall be in accordance with
IEC 61300-3-3.
– 10 – IEC 61753-091-02:2022 © IEC 2022
Table 2 (3 of 5)
No Tests Requirements Details
9 Dry heat Before and after the test, the Temperature: +60 °C ± 2 °C
limits of insertion loss, isolation
IEC 61300-2-18
Duration of exposure: 96 h
and return loss of test no. 1, 2
and 3 shall be met.
During the test, change in
attenuation is monitored. During
and after the test, change in
attenuation shall be within ±0,3
dB of the initial value.
During the test, the change in
isolation is monitored. The sum
of the initial value and the
change of the isolation shall be
within the value defined at test
no. 2.
During the test, the change in
return loss is monitored. The
sum of the initial value and the
change of the return loss shall
be within the value defined at
test no. 3.
Transient loss during the test
shall be in accordance with
IEC 61300-3-3.
10 Damp heat Before and after the test, the Temperature: +40 °C ± 2 °C
limits of insertion loss, isolation
(steady state)
Relative humidity:
+
and return loss of test no. 1, 2
93 % % RH
and 3 shall be met.
−
IEC 61300-2-19
During the test, change in
Duration of exposure: 96 h
attenuation is monitored. During
and after the test, change in
attenuation shall be within ±0,3
dB of the initial value.
During the test, the change in
isolation is monitored. The sum
of the initial value and the
change of the isolation shall be
within the value defined at test
no. 2.
Transient loss during the test
shall be in accordance with
IEC 61300-3-3.
11 Change of Before and after the test, the High temperature: +60 °C ± 2 °C
temperature limits of insertion loss, isolation
Low temperature: –10 °C ± 2 °C
and return loss of test no. 1, 2
IEC 61300-2-22
and 3 shall be met.
Number of cycles: 5
During the test, change in
Duration at extreme 60 min
attenuation is monitored. During
temperature:
and after the test, change in
attenuation shall be within ±0,3
Rate of change: 1 °C/min
dB of the initial value.
During the test, the change in
isolation is monitored. The sum
of the initial value and the
change of the isolation shall be
within the value defined at test
no. 2.
Transient loss during the test
shall be in accordance with
IEC 61300-3-3.
Table 2 (4 of 5)
No Tests Requirements Details
12 Vibration Before and after the test, the Frequency range: 10 Hz to 55 Hz to 10 Hz
(sinusoidal) limits of insertion loss, isolation
Number of axes: 3 orthogonal axes
and return loss of test no. 1, 2
IEC 61300-2-1
and 3 shall be met.
Number of sweeps: 15/axis
During the test, the transient
Sweep rate: 1 octave/min
loss is monitored. During and
after the test, the transient loss
Amplitude: 0,75 mm
shall be within ±0,3 dB of the

initial value.
During the test, the change in
isolation is monitored. The sum
of the initial value and the
change of the isolation shall be
within the value defined at test
no. 2.
Transient loss during the test
shall be in accordance with
IEC 61300-3-28.
13 Shock Before and after the test, the Acceleration:
5 000 m/s
limits of insertion loss, isolation
IEC 61300-2-9
Duration: 1 ms, half sine pulse
and return loss of test no. 1, 2
and 3 shall be met.
Number of axis: 3 axes in 2 directions
The transient loss after the test
Number of shocks: 2 shocks per axis, 12 shock in
shall be within ±0,3 dB of the
total
initial value.
14 Optical fibre Before and after the test, the Tensile force: 2 N for reinforced cable
cable flexing limits of insertion loss, isolation
Number of cycles: 50 cycles
and return loss of test no. 1, 2
IEC 61300-2-44
and 3 shall be met.
Angle: ±90°
The change in attenuation after

the test shall be within ±0,3 dB
of the initial value
15 Fibre or cable Before and after the test, the Magnitude and rate of (10 ± 1) N at 5 N/s for
retention limits of insertion loss, isolation application: reinforced cables
and return loss of test no. 1, 2
IEC 61300-2-4
(5,0 ± 0,5) N at 0,5 N/s for
and 3 shall be met.
secondary coated fibres
The change in attenuation after
(2,0 ± 0,2) N at 0,5 N/s for
the test shall be within ±0,3 dB
primary coated fibres
of the initial value.
Duration of the test: 60 s
Point of application of 0,3 m from the exit point of the
tensile load: fibre/cable from the specimen
Method of mounting: The sample shall be rigidly
mounted such that the load is
only applied to the fibre/cable
retention mechanism
Before and after the test, the 5 N ± 0,5 N at 5 N/s for
16 Torsion Load:
limits of insertion loss, crosstalk reinforced cables
IEC 61300-2-5
and return loss of test no.1, 2
2,0 N ± 0,2 N at 0,5 N/s for
and 3 shall be met.
secondary coated fibres
The change in attenuation
Angle: ±180°
during the test shall be within
±0,3 dB of the initial value.
Number of cycles: 10
Fibre/cable clamping 25 cm ± 5 cm
distance:
– 12 – IEC 61753-091-02:2022 © IEC 2022
Table 2 (5 of 5)
No Tests Requirements Details
17 Static side load Before and after the test, the Magnitude and 1 N for 1 h for reinforced cable
limits of insertion loss, isolation duration of the tensile
IEC 61300-2-42 0,2 N for 5 min for secondary
and return loss of test no. 1, 2 load:
coated fibres
and 3 shall be met.
Direction of Two mutually perpendicular
The change in attenuation after
application: directions
the test shall be within ±0,3 dB
of the initial value
Annex A
(normative)
Sample size
All samples shall be subjected to tests 1 to 6 as shown in Table A.1. All other tests may be
done in any order. Consecutive testing on the same optical sample is allowed, but in case of
failure during the consecutive testing, a new sample shall be prepared and the failed test shall
be redone.
Table A.1 – Sample size
Test number Test Sample size
1 Insertion loss 12
2 Isolation 12
3 Return l
...