IEC 61753-053-02:2022

Fibre optic interconnecting devices and passive components - Performance standard - Part 053-02: Non-connectorized, single-mode fibre, electrically controlled, variable optical attenuator for category C - Controlled environments

IEC 61753-053-02: 2022 contains the minimum initial test and measurement requirements and severities which non-connectorized single-mode fibre electrically controlled variable optical attenuator needs to satisfy in order to be categorised as meeting the requirements of category C – Controlled environments, as defined in Annex A of IEC 61753-1:2018.
This first edition cancels and replaces IEC 61753-053-2 published in 2014. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to IEC 61753-053-2:2014:
a) harmonization of terms and definitions with those in IEC 60869-1 and IEC TS 62627-09;
b) 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 053-02: Affaiblisseur optique variable commandé électriquement, à fibres unimodales, non connectorisé, pour la catégorie C - Environnements contrôlés

IEC 61753-053-02: 2022 contient les exigences minimales initiales d’essai et de mesure, ainsi que les sévérités auxquelles un affaiblisseur optique variable commandé électriquement, à fibres unimodales, non connectorisé, doit satisfaire pour être classé comme étant conforme aux exigences de la catégorie C – Environnements contrôlés, selon la définition donnée à l’Annexe A de l’IEC 61753-1:2018.
Cette première édition annule et remplace l'IEC 61753-053-2 parue en 2014. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l’IEC 61753‑053‑2:2014:
a) harmonisation des termes et définitions avec ceux de l’IEC 60869-1 et de l’IEC TS 62627-09;
b) 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: 26-Jul-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: 27-Jul-2022
• Completion Date: 02-Sep-2022

Relations

• Replaces: IEC 61753-053-2:2014 - Fibre optic interconnecting devices and passive components - Performance standard - Part 053-2: Non-connectorized single-mode fibre, electrically controlled, variable optical attenuator for category C - Controlled environments
• Effective Date: 05-Sep-2023

Overview

IEC 61753-053-02:2022 is an international standard published by the International Electrotechnical Commission (IEC) that establishes performance requirements for non-connectorized, single-mode fibre, electrically controlled variable optical attenuators (VOAs) intended for category C environments, classified as controlled environments. This standard specifies the minimum initial test and measurement requirements and severities that such VOAs must meet to ensure reliable operation under these conditions.

This first edition replaces the earlier 2014 version and includes significant technical updates, such as harmonization of terminology and test procedures aligned with IEC 60869-1, IEC TS 62627-09, and the latest IEC 61753-1:2018 standards and amendments. The standard is essential for manufacturers, testers, and quality assurance professionals involved in the design, production, and deployment of fibre optic components for controlled environment applications.

Key Topics

• Scope and Application: Defines requirements for non-connectorized, single-mode fibre VOAs that use electrical control mechanisms, aimed at category C environments (controlled settings). It excludes connectorized devices and multi-mode fibre attenuators.

• Test and Measurement Requirements: Covers a comprehensive suite of standardized test methods that VOAs must undergo, including:

  • Dimensional verification and sample sizing.
  • Vibration and shock testing for operational reliability.
  • Optical performance assessments such as insertion loss, attenuation repeatability, wavelength dependence, and response time.
  • Environmental stress tests including cold, dry heat, damp heat, and temperature cycling.
  • Mechanical tests such as strain relief, flexing, torsion, and cable retention.

• Harmonization: Incorporates updated terminology and test protocols consistent with related international standards like IEC 60869-1 (generic specifications for fibre optic passive power control devices) and IEC TS 62627-09 (vocabulary for passive optical devices).

• Test Reporting: Specifies the format and content required in test reports for compliance verification, supporting traceability and quality assurance.

Applications

IEC 61753-053-02:2022 is crucial for industries and sectors relying on precision fibre optic components operating in controlled environments, including:

• Telecommunications: Ensuring high reliability and performance in fibre optic networks for data transmission and signal management.

• Data Centers: Managing optical signal attenuation with precision in tightly controlled indoor environments.

• Research and Development: Standardizing test procedures for developing new fibre optic VOA products that meet stringent performance criteria.

• Manufacturing Quality Control: Facilitating consistent production standards and enabling manufacturers to certify their VOAs for controlled environment applications.

• Military and Aerospace: Where controlled environments demand strict optical component performance and durability.

By adopting this standard, stakeholders benefit from improved product reliability, interoperability, and alignment with international best practices.

Related Standards

• IEC 61753-1:2018 – General performance standard and guidance for fibre optic interconnecting devices and passive components.

• IEC 60869-1 – Generic specification for fibre optic passive power control devices.

• IEC TS 62627-09 – Vocabulary for passive optical devices, aiding consistent terminology.

• IEC 61300 Series – Basic test and measurement procedures for fibre optic devices, including tests on vibration, shock, temperature, and mechanical stress.

• IEC 60793-2-50 – Product specification for class B single-mode optical fibres.

• IEC 60794-2-50 – Family specification for simplex and duplex indoor optical fibre cables.

Practical Value

Adhering to IEC 61753-053-02:2022 ensures that variable optical attenuators designed for controlled environments meet rigorous quality standards that:

• Guarantee stable optical performance under mechanical, thermal, and environmental stresses.

• Facilitate interoperability between fibre optic components from different vendors.

• Reduce risk of network failures due to component malfunction.

• Enhance lifecycle reliability, lowering maintenance and replacement costs.

This standard is vital for optical component manufacturers, test laboratories, and end-users aiming to maintain high-quality standards in fibre optic communications and passive device performance within controlled settings.

Standards Content (Sample)

IEC 61753-053-02 ®
Edition 1.0 2022-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fibre optic interconnecting devices and passive components – Performance
standard –
Part 053-02: Non-connectorized, single-mode fibre, electrically controlled,
variable optical attenuator for category C – Controlled environments

Dispositifs d'interconnexion et composants passifs fibroniques –
Norme de performance –
Partie 053-02: Affaiblisseur optique variable commandé électriquement, à fibres
unimodales, non connectorisé, pour la catégorie C – Environnements contrôlés

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IEC 61753-053-02 ®
Edition 1.0 2022-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fibre optic interconnecting devices and passive components – Performance

standard –
Part 053-02: Non-connectorized, single-mode fibre, electrically controlled,

variable optical attenuator for category C – Controlled environments

Dispositifs d'interconnexion et composants passifs fibroniques –

Norme de performance –
Partie 053-02: Affaiblisseur optique variable commandé électriquement, à fibres

unimodales, non connectorisé, pour la catégorie C – Environnements contrôlés

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.20 ISBN 978-2-8322-4435-7

– 2 – IEC 61753-053-02:2022 © 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. 8
7.1 Dimensions . 8
7.2 Sample size . 8
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 . 8
Table A.1 – Number of samples for each test . 13

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

Part 053-02: Non-connectorized, single-mode fibre, electrically controlled,
variable optical attenuator 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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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 61753-053-02 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 61753-053-2 published in 2014. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to
IEC 61753-053-2:2014:
a) harmonization of terms and definitions with those in IEC 60869-1 and IEC TS 62627-09;
b) harmonization of test items and their conditions with IEC 61753-1:2018 and
IEC 61753-1:2018/AMD1:2020.
– 4 – IEC 61753-053-02:2022 © IEC 2022
The text of this International Standard is based on the following documents:
Draft Report on voting
86B/4622/FDIS 86B/4644/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 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.
FIBRE OPTIC INTERCONNECTING DEVICES AND
PASSIVE COMPONENTS – PERFORMANCE STANDARD –

Part 053-02: Non-connectorized, single-mode fibre, electrically controlled,
variable optical attenuator for category C – Controlled environments

1 Scope
This part of IEC 61753 contains the minimum initial test and measurement requirements and
severities which non-connectorized single-mode fibre electrically controlled variable optical
attenuator needs to satisfy in order to be categorised as meeting the requirements of category C
– Controlled environments, as defined in Annex A of IEC 61753-1:2018.
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 60869-1, Fibre optic interconnecting devices and passive components – Fibre optic passive
power control devices – Part 1: Generic specification
IEC 61300 (all parts), Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures
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

– 6 – IEC 61753-053-02:2022 © IEC 2022
IEC 61300-2-19, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-19: Tests – Damp heat (steady state)
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: 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 61300-3-7, 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 61300-3-14, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-14: Examinations and measurements – Error and
repeatability of the attenuation settings of a variable optical attenuator
IEC 61300-3-21, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-21: Examinations and measurements – Switching time
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 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 60869-1 and
IEC TS 62627-09, as well as the following, apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.1
operational vibration
vibration test in which relevant parameters should be monitored during the test

3.2
operational shock
shock test in which relevant parameters should be monitored during the test
3.3
response time
elapsed time from the time the control energy (voltage or current) is applied (changed) to the
time attenuation reaches between 90 % and 110 % dB of steady-state value
4 Test conditions
Unless otherwise specified, all test methods shall be in accordance with the IEC 61300 series.
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. Non-connectorized single-mode fibre electrically controlled
variable 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. 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 Ultra long wavelength 1 625 to 1 675
Source: ITU-T G. Supplement 39 [1] .

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.
___________
Numbers in square bracket refer to the Bibliography.

– 8 – IEC 61753-053-02:2022 © IEC 2022
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.
7.3 Test details and requirements
The test details and requirements are shown in Table 2. The requirements are given only for a
pigtailed electrically controlled variable optical attenuator. A minimum length of fibre or cable
of 2,0 m per port shall be included in all climatic and environmental test chambers.
Fibre for input and output ports may be connected by fusion splice as temporary joints to
achieve more than or equal to 2 m during the test.
Table 2 – Test details and requirements
No Tests Requirements Details
Minimum
1 ≤ 1,5 dB Launch fibre length: ≥ 2,0 m
insertion loss
Source: Unpolarized
(Minimum
Measurement ≤ 0,1 dB
attenuation)
uncertainty:
IEC 61300-3-7
Variable
2 ≥ 20 dB Launch fibre length: ≥ 2,0 m
attenuation
Source: Unpolarized
range
Measurement ≤ 0,5 dB
IEC 61300-3-7
uncertainty:
3 Wavelength ≤ 0,7 dB (attenuation Launch fibre length: ≥ 2,0 m
dependent loss ≤ 10 dB)
Source: Unpolarized
IEC 61300-3-7 ≤ 1,0 dB
Measurement ≤ 0,05 dB
(attenuation > 10 dB)
uncertainty:
4 Polarization ≤ 0,3 dB (attenuation Launch fibre length: ≥ 2,0 m
dependent loss ≤ 10 dB)
Measurement ≤ 0,05 dB
(PDL)
≤ 0,5 dB uncertainty:
IEC 61300-3-2 (attenuation > 10 dB)
5 Return loss ≥ 40 dB Launch fibre length: ≥ 2,0 m
IEC 61300-3-7 Source: Unpolarized
Measurement ≤ 1 dB
uncertainty:
6 Response time ≤ 20 ms Launch fibre length: ≥ 2,0 m
IEC 61300-3-21 Measurement ≤ 1 ms
uncertainty:
7 Error of the ±15 % of set value (in dB) Launch fibre length: ≥ 2,0 m
setting
Source: Unpolarized
attenuation
value
Measurement ≤ 0,1 dB
uncertainty:
(if applicable)
IEC 61300-3-14
No Tests Requirements Details
8 Repeatability of ±5 % of set value (in dB) Launch fibre length: ≥ 2,0 m
the setting
Source: Unpolarized
attenuation
value
Measurement ≤ 0,1 dB
uncertainty:
(if applicable)
IEC 61300-3-14
9 High optical Before and after the test, Optical power: 300 mW
power the limits of insertion loss
Wavelength: 1 550 nm
and return loss of test no.
IEC 61300-2-14
1 and 5 shall be met.
Duration of the
30 min
optical power
During the test, the
exposure:
insertion loss change is
monitored. During and
Temperature: 60 °C ± 2 °C
after the test, the insertion
loss change shall be within
Relative humidity:
+
±0,3 dB of the initial value. 93 % % RH
−
During the test, the return
loss change is monitored.
The sum of the initial
value and the change of
the return loss shall be
within the value defined at
test no. 5.
Insertion loss (attenuation)
change shall be monitored
by IEC 61300-3-3.
10 Cold Before and after the test, Temperature: −10 °C ± 2 °C
the limits of insertion loss
IEC 61300-2-17 Duration of exposure: 96 h
and return loss of test
no. 1 and 5 shall be met.
During the test, the
insertion loss change is
monitored. During and
after the test, the insertion
loss change shall be within
±0,3 dB of the initial value.
During the test, the return
loss change is monitored.
The sum of the initial
value and the change of
the return loss shall be
within the value defined at
test no. 5.
Insertion loss (attenuation)
change shall be monitored
by IEC 61300-3-3.
– 10 – IEC 61753-053-02:2022 © IEC 2022
No Tests Requirements Details
11 Dry heat - High Before and after the test, Temperature: +60 °C ± 2 °C
temperature the limits of insertion loss
Duration of exposure: 96 h
endurance and return loss of test
no. 1 and 5 shall be met.
IEC 61300-2-18
During the test, the
insertion loss change is
monitored. During and
after the test, the insertion
loss change shall be within
±0,3 dB of the initial value.
During the test, the return
loss change is monitored.
The sum of the initial
value and the change of
the return loss shall be
within the value defined at
test no. 5.
Insertion loss (attenuation)
change shall be monitored
by IEC 61300-3-3.
12 Damp heat Before and after the test, Temperature: +40 °C ± 2 °C
(steady state) the limits of insertion loss
Relative humidity:
+
and return loss of test no.
IEC 61300-2-19 93 % % RH
1 and 5 shall be met. 3
−
During the test, the
Duration of exposure: 96 h
insertion loss change is
monitored.
During and after the test,
the insertion loss change
shall be within ±0,3 dB of
the initial value.
Insertion loss (attenuation)
change shall be monitored
by IEC 61300-3-3.
13 Change of Before and after the test, High temperature:
+60 °C ± 2 °C
temperature the limits of insertion loss
Low temperature: −10 °C ± 2 °C
and return loss of test no.
IEC 61300-2-22
1 and 5 shall be met.
Number of cycles: 5 cycles
During the test, the
Duration at extreme 60 min
insertion loss change is
temperature:
monitored.
Rate of change: ≤ 1 °C/min
During and after the test,
the insertion loss change
shall be within ±0,3 dB of
the initial value.
Insertion loss (attenuation)
change shall be monitored
by IEC 61300-3-3.
14 Vibration Before and after the test, Frequency range: 10 Hz to 55 Hz to 10 Hz
the limits of insertion loss
IEC 61300-2-1 Number of axes: 3 orthogonal axes
and return loss of test
no. 1 and 5 shall be met.
Number of sweeps: 15/axis
The insertion loss change
Sweep rate: 1 octave/min
after the test shall be
within ±0,3 dB of the initial
Amplitude: 0,75 mm
value
No Tests Requirements Details
15 Operational During the test, the Frequency range: 50 Hz to 500 Hz to 50 Hz
vibration change in minimum
Condition:
19,6 m/s for three orthogonal axes
insertion loss shall be
IEC 61300-2-1
within ±0,3 dB of initial
Duration: 2 sweeps/direction
value under ambient
environmental conditions.
Sampling rate: 5 kHz
Change in minimum
NOTE Test condition is based on
attenuation shall be
IEC 62343-1 [2].
measured by
IEC 61300-3-28.
16 Shock Before and after the test, Acceleration:
Components: 5 000 m/s
the limits of insertion loss
IEC 61300-2-9
Modules:
and return loss of tests
no. 1 and 5 shall be met.
0,125 kg < module mass
≤ 0,225 kg: 2 000 m/s
The insertion loss change
after the test shall be
0,225 kg < module mass ≤ 1 kg:
within ±0,3 dB of the initial
500 m/s
value.
Duration: 1 ms, half sine pulse
Number of axis: 3 axes in 2 directions
Number of shocks: 2 shocks per axis, 12 shock in total
17 Operational During the test, the Acceleration:
392 m/s
shock change in minmum
Duration: 5 ms, half sine pulse
insertion loss shall be
IEC 61300-2-9
within ±0,3 dB of original
Number of axis: 3 axes in 2 directions
value under ambient
environmental conditions.
Number of shocks: 3 shocks per axis, 18 shocks in
total
Change in minimum
attenuation shall be
Sampling rate: 5 kHz
measured by
IEC 61300-3-28. NOTE Test condition is based on
IEC TR 62343-6-5 [3]
18 Optical fibre Before and after the test, Tensile force: 2 N for reinforced cable
cable flexing the limits of insertion loss
Number of cycles: 50 cycles
and return loss of test
IEC 61300-2-44
no. 1 and 5 shall be met.
Angle: ±90°
The insertion loss change
after the test shall be
within ±0,3 dB of the initial
value.
19 Fibre or cable Before and after the test, Magnitude and rate (10 ± 1) N at 5 N/s for reinforced
retention the limits of insertion loss of application: cables
and return loss of test
IEC 61300-2-4
(5,0 ± 0,5) N at 0,5 N/s for
no. 1 and 5 shall be met.
secondary coated fibres
The insertion loss change
(2,0 ± 0,2) N at 0,5 N/s for primary
after the test shall be
coated fibres
within ±0,3 dB of the initial
value.
Duration of the test: 60 s duration
Point of application 0,3 m from the exit point of the fibre
of tensile load: and cable from the device under
test
Method of mounting: The sample shall be rigidly
mounted such that the load is only
applied to the fibre/cable retention
mechanism
– 12 – IEC 61753-053-02:2022 © IEC 2022
No Tests Requirements Details
20 Torsion Before and after the test, Load: 5 N ± 0,5 N at 5 N/s for reinforced
the limits of insertion loss, cables
IEC 61300-2-5
crosstalk and return loss
2,0 N ± 0,2 N at 0,5 N/s for
of test no.1, 2 and 3 shall
secondary coated fibres
be met.
Angle:
±180°
The insertion loss change
during the test shall be Number of cycles:
within ±0,3 dB of the initial
Fibre/cable clamping
value.
25 cm ± 5 cm
distance:
21 Static side load Before and after the test, Magnitude and 1 N for 1 h for reinforced cable
the limits of insertion loss duration of the
IEC 61300-2-42 0,2 N for 5 min for secondary
and return loss of test tensile load:
coated fibres
no. 1 and 5 shall be met.
Direction of Two mutually perpendicular
The insertion loss change
application: directions
after 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 5 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 – Numbe
...