IEC 61300-2-1:2023

IEC 61300-2-1 ®
Edition 4.0 2023-01
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures –
Part 2-1: Tests – Vibration (sinusoidal)

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IEC 61300-2-1 ®
Edition 4.0 2023-01
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures –
Part 2-1: Tests – Vibration (sinusoidal)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.180.20 ISBN 978-2-8322-6414-0

– 2 – IEC 61300-2-1:2023 RLV © IEC 2023
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 General description . 5
5 Apparatus . 6
5.1 General . 6
5.2 Vibration generator . 6
5.3 Mounting fixture . 6
5.4 Acceleration monitoring device . 6
5.5 Measuring equipment . 6
6 Procedure . 6
6.1 Preparation of DUT . 6
6.2 Preconditioning . 6
6.3 Initial examination and measurement . 6
6.4 Conditioning Mounting and test procedure . 7
6.5 Monitoring . 8
6.6 Recovery . 8
6.7 Final examination and measurement . 8
7 Severity . 8
8 Details to be specified and reported. 9
Bibliography . 12

Figure 1 – Example of vibration apparatus . 7

Table 1 – Recommended values of the test parameters for connectors and passive
components . 9
Table 2 – Recommended values of the test parameters for fibre management systems
and closures . 9
Table 3 – Recommended values of the test parameters for mechanical splices and field
mountable connectors . 9
Table 4 – Recommended values of the test parameters for wall outlets and optical
distribution frame modules . 10
Table 5 – Recommended values of the test parameters for hardened optical
connectors . 10
Table 6 – Recommended values of the test parameters for boxes and closures . 10
Table 7 – Recommended values of the test parameters for street cabinets . 10

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
BASIC TEST AND MEASUREMENT PROCEDURES –

Part 2-1: Tests – Vibration (sinusoidal)

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
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
This redline version of the official IEC Standard allows the user to identify the changes made to
the previous edition IEC 61300-2-1:2009. A vertical bar appears in the margin wherever a change
has been made. Additions are in green text, deletions are in strikethrough red text.

– 4 – IEC 61300-2-1:2023 RLV © IEC 2023
IEC 61300-2-1 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 fourth edition cancels and replaces the third edition published in 2009. This edition
constitutes a technical revision.
This edition includes the following significant technical change with respect to the previous
edition: harmonizing with the test conditions in IEC 61753-1:2018 and revising severities.
The text of this International Standard is based on the following documents:
Draft Report on voting
86B/4692/FDIS 86B/4724/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/publications.
A list of all parts of IEC 61300 series, published under the general title Fibre optic
interconnecting devices and passive components – Basic test and measurement procedures,
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.

FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
BASIC TEST AND MEASUREMENT PROCEDURES –

Part 2-1: Tests – Vibration (sinusoidal)

1 Scope
This part of IEC 61300 evaluates the effects of vibration on fibre optic devices at the
predominant frequency ranges and magnitudes that may be are encountered during field service
on attenuation.
NOTE Most vibrations encountered in service are not of a simple harmonic nature. However, it has been shown that
tests based on vibrations of this type are satisfactory to simulating actual service.
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 60068-2-6, Environmental testing – Part 2-6: Tests − Test Fc: Vibration (sinusoidal)
IEC 61300-1, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 1: General and guidance
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
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 61300-1 apply.
ISO and IEC maintain terminology 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
4 General description
This procedure is derived from IEC 60068-2-6, test Fc. The device under test (DUT) is mounted
on a vibration generator and vibrated with a sinusoidal motion. The DUT is exposed to vibration
in three mutually perpendicular directions, one of which is parallel to the optical axis. The

– 6 – IEC 61300-2-1:2023 RLV © IEC 2023
vibration amplitude is specified either in terms of constant displacement or constant
acceleration.
5 Apparatus
5.1 General
The apparatus shall be in accordance with IEC 60068-2-6, test Fc, and consists of the following
elements.
5.2 Vibration generator
A vibration generator capable of generating a sinusoidal excitation and its auxiliary test
equipment.
5.3 Mounting fixture
A suitable DUT mounting fixture capable of transmitting the vibration conditions specified shall
be used. The mounting fixture shall be designed so that the resonant vibration inherent in the
fixture shall not have an effect on the specified frequency range.
5.4 Acceleration monitoring device
The amplitude and the acceleration of the applied vibration shall be monitored by an
acceleration monitoring device, i.e. accelerometer on the test mounting fixture near the DUT
mounting points.
5.5 Measuring equipment
Unless otherwise specified, measuring equipment specified in IEC 61300-3-3 shall be
connected to the DUT for monitoring the optical performances during the test; moreover The
transient loss measuring measurement equipment specified in IEC 61300-3-28 shall be
connected to the DUT and used to detect fast variation of attenuation during and after the test,
unless otherwise specified in the relevant specification.
6 Procedure
6.1 Preparation of DUT
Prepare the DUT according to the manufacturer’s instructions or and as specified in the relevant
specification.
6.2 Preconditioning
Precondition the DUT for more than or equal to 2 h at the standard test atmospheric conditions
specified in IEC 61300-1, unless otherwise specified in the relevant specification.
6.3 Initial examination and measurement
Complete initial examinations and measurements of the DUT as required by the relevant
specification.
Unless otherwise specified, visually examine the DUT in accordance with IEC 61300-3-1. Check
for evidence of any degradation in the DUT. The following are possible examples of degradation:
– broken, loose or damaged parts or accessories;
– breaking or damage to the cable jacket, seals, strain relief, or fibres;
– displaced, bent, broken or chipped parts.

6.4 Conditioning Mounting and test procedure
The DUT shall be mounted rigidly to the fixture in a manner that simulates normal mounting as
closely as possible. A minimum of 200 mm Greater than 20 cm of optical fibre/cable shall be
unsupported on both ends of the DUT and be attached free of tension to the vibrating surface.
Conduct the procedure in accordance with IEC 60068-2-6, test Fc. The DUT shall be vibrated
in three mutually perpendicular axes coincident with the principal axes of the device. If the
sample has axial symmetry, the number of axes to be tested can be reduced to two. The
vibration endurance shall be performed by sweeping continuously between minimum and
maximum frequency at a specified rate. An example of vibration apparatus test is outlined in
Figure 1.
Figure 1 – Example of vibration apparatus

– 8 – IEC 61300-2-1:2023 RLV © IEC 2023
6.5 Monitoring
The attenuation and/or return transient loss of the DUT shall be monitored during and after the
test using an x-y-plotter, a recording mean such as a computer, oscilloscope or /and a digital
data acquisition system for recording with memory as described in IEC 61300-3-28, unless
otherwise specified in the relevant specification. Any change in optical performance shall be
within the limit given in the relevant specification.
6.6 Recovery
Allow the DUT to remain under standard test atmospheric conditions for more than or equal to
2 h, as defined in IEC 61300-1, unless otherwise specified in the relevant specification. Clean
the DUT in accordance with the manufacturer’s instructions.
6.7 Final examination and measurement
On After completion of the test, remove all the DUT shall be removed from the fixtures, and
make the final measurements shall be made, as defined by the relevant specification, to ensure
that there is no permanent damage to the DUT. The results of the final measurement shall be
within the limit established in the relevant specification.
Unless otherwise specified, visually examine the DUT in accordance with IEC 61300-3-1. Check
for evidence of any degradation in the DUT. This may include, for example
The following are possible examples of degradation:
– broken, loose or damaged parts or accessories;
– breaking or damage to the cable jacket, seals, strain relief, or fibres;
– displaced, bent, broken or chipped parts.
7 Severity
The severity consists of the combination of frequency range, vibration amplitude, sweep rate
and either number of sweeps or endurance duration per axis. The severity shall be specified in
the relevant specification. Recommended values of the test parameters are given below in Table
1 and 2 Table 1 through Table 7 for the various configurations.

Table 1 – Recommended values of the test parameters for
connectors and passive components
Category Parameter Value
HD
Frequency range 10 Hz to 55 Hz
Categories C, U, C , OP, OP+,
HD
OP+ and E
Sweep rate 1 oct/min
Number of sweeps 15/axis
Amplitude 0,75 mm
Category O Frequency range 10 Hz – 55 Hz
Sweep rate 1 oct/min for passive
components
45 Hz/min for connectors
Duration 2 h/axis
Amplitude 1,52 mm for passive
components
0,75 mm for connectors
HD
Frequency range 2 Hz to 200 Hz
Categories I and I
Sweep rate 1 oct/min
Number of sweeps 15/axis
Amplitude 15 mm at frequencies
below 9 Hz
Acceleration
50 m/s at frequencies
above 9 Hz
NOTE Categories are defined in IEC 61753-1.

Table 2 – Recommended values of the test parameters for
fibre management systems and closures
Category Parameter Value
HD
Frequency range 5 Hz to 500 Hz
Categories C, A, G and S C , OP, OP+,
HD HD
OP+ and OP
Sweep rate 1 oct/min
Number of sweeps 10/axis
Amplitude 3,5 mm below 9
Hz
Acceleration
9,8 10 m/s
above 9 Hz
NOTE Categories are defined in IEC 61753-1.

Table 3 – Recommended values of the test parameters for
mechanical splices and field mountable connectors
Category Parameter Value
HD
Frequency range 10 Hz to 55 Hz
Categories C, C , OP, OP+,
HD HD
OP+ and OP
Sweep rate 1 oct/min
Number of sweeps 15/axis
Amplitude 0,75 mm
NOTE Categories are defined in IEC 61753-1.

– 10 – IEC 61300-2-1:2023 RLV © IEC 2023
Table 4 – Recommended values of the test parameters for
wall outlets and optical distribution frame modules
Category Parameter Value
HD
Frequency range 5 Hz to 500 Hz
Categories C and C
Sweep rate 1 oct/min
Number of sweeps 10/axis
Amplitude 1,5 mm at frequencies
below 9 Hz
Acceleration
5 m/s above 9 Hz
NOTE Categories are defined in IEC 61753-1.

Table 5 – Recommended values of the test parameters for hardened optical connectors
Category Parameter Value
Categories A, G, and S Frequency range 5 Hz to 500 Hz
Sweep rate 1 oct/min
Number of sweeps 10/axis
Amplitude 3,5 mm below 9 Hz
Acceleration
10 m/s above 9 Hz
NOTE Categories are defined in IEC 61753-1.

Table 6 – Recommended values of the test parameters for boxes and closures
Category Parameter Value
HD
Frequency range 5 Hz to 500 Hz
Categories C and C
Sweep rate 1 oct/min
Number of sweeps 10/axis
Amplitude 1,5 mm at frequencies
below 9 Hz
Acceleration
5 m/s above 9 Hz
Categories A, G, and S Frequency range 5 Hz to 500 Hz
Sweep rate 1 oct/min
Number of sweeps 10/axis
Amplitude 3,5 mm below 9 Hz
Acceleration
10 m/s above 9 Hz
NOTE Categories are defined in IEC 61753-1.

Table 7 – Recommended values of the test parameters for street cabinets
Category Parameter Value
Category A Frequency range 5 Hz to 500 Hz
Sweep rate 1 oct/min
Number of sweeps 10/axis
Amplitude 1,2 mm at frequencies
below 9 Hz
Acceleration
4 m/s above 9 Hz
NOTE Categories are defined in IEC 61753-1.

8 Details to be specified and reported
The following details, as applicable, shall be specified in the relevant specification and shall be
reported in the test report:
– frequency range;
– vibration amplitude or acceleration;
– number of sweeps or duration per axis;
− endurance duration per axis;
– frequency change at constant (sweep rate);
– initial examinations and measurements and performance requirements;
– examinations and measurements during test and performance requirements;
– final examinations and measurements and performance requirements;
– deviations from this test procedure;
– additional pass/fail criteria.

– 12 – IEC 61300-2-1:2023 RLV © IEC 2023
Bibliography
IEC 61753-1:2018, Fibre optic interconnecting devices and passive components – Performance
standard – Part 1: General and guidance

___________
IEC 61300-2-1 ®
Edition 4.0 2023-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures –
Part 2-1: Tests – Vibration (sinusoidal)

Dispositifs d’interconnexion et composants passifs fibroniques – Procédures
fondamentales d’essais et de mesures –
Partie 2-1: Essais – Vibrations (sinusoïdales)

– 2 – IEC 61300-2-1:2023 © IEC 2023
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 General description . 5
5 Apparatus . 6
5.1 General . 6
5.2 Vibration generator . 6
5.3 Mounting fixture . 6
5.4 Acceleration monitoring device . 6
5.5 Measuring equipment . 6
6 Procedure . 6
6.1 Preparation of DUT . 6
6.2 Preconditioning . 6
6.3 Initial examination and measurement . 6
6.4 Mounting and test procedure . 7
6.5 Monitoring . 7
6.6 Recovery . 7
6.7 Final examination and measurement . 7
7 Severity . 8
8 Details to be specified and reported. 10
Bibliography . 11

Figure 1 – Example of vibration apparatus . 7

Table 1 – Recommended values of the test parameters for connectors and passive
components . 8
Table 2 – Recommended values of the test parameters for fibre management systems . 8
Table 3 – Recommended values of the test parameters for mechanical splices and field
mountable connectors . 8
Table 4 – Recommended values of the test parameters for wall outlets and optical
distribution frame modules . 9
Table 5 – Recommended values of the test parameters for hardened optical
connectors . 9
Table 6 – Recommended values of the test parameters for boxes and closures . 9
Table 7 – Recommended values of the test parameters for street cabinets . 9

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
BASIC TEST AND MEASUREMENT PROCEDURES –

Part 2-1: Tests – Vibration (sinusoidal)

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
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
IEC 61300-2-1 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 fourth edition cancels and replaces the third edition published in 2009. This edition
constitutes a technical revision.
This edition includes the following significant technical change with respect to the previous
edition: harmonizing with the test conditions in IEC 61753-1:2018 and revising severities.

– 4 – IEC 61300-2-1:2023 © IEC 2023
The text of this International Standard is based on the following documents:
Draft Report on voting
86B/4692/FDIS 86B/4724/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/publications.
A list of all parts of IEC 61300 series, published under the general title Fibre optic
interconnecting devices and passive components – Basic test and measurement procedures,
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.

FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
BASIC TEST AND MEASUREMENT PROCEDURES –

Part 2-1: Tests – Vibration (sinusoidal)

1 Scope
This part of IEC 61300 evaluates the effects of vibration on fibre optic devices at the
predominant frequency ranges and magnitudes that are encountered during field service on
attenuation.
NOTE Most vibrations encountered in service are not of a simple harmonic nature. However, it has been shown that
tests based on vibrations of this type are satisfactory to simulating actual service.
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 60068-2-6, Environmental testing – Part 2-6: Tests − Test Fc: Vibration (sinusoidal)
IEC 61300-1, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 1: General and guidance
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 61300-3-28, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-28: Examinations and measurements – Transient loss
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 61300-1 apply.
ISO and IEC maintain terminology 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
4 General description
This procedure is derived from IEC 60068-2-6, test Fc. The device under test (DUT) is mounted
on a vibration generator and vibrated with a sinusoidal motion. The DUT is exposed to vibration
in three mutually perpendicular directions, one of which is parallel to the optical axis. The
vibration amplitude is specified either in terms of constant displacement or constant
acceleration.
– 6 – IEC 61300-2-1:2023 © IEC 2023
5 Apparatus
5.1 General
The apparatus shall be in accordance with IEC 60068-2-6, test Fc, and consists of the following
elements.
5.2 Vibration generator
A vibration generator capable of generating a sinusoidal excitation and its auxiliary test
equipment.
5.3 Mounting fixture
A suitable DUT mounting fixture capable of transmitting the vibration conditions specified shall
be used. The mounting fixture shall be designed so that the resonant vibration inherent in the
fixture shall not have an effect on the specified frequency range.
5.4 Acceleration monitoring device
The amplitude and the acceleration of the applied vibration shall be monitored by an
acceleration monitoring device, i.e. accelerometer on the mounting fixture near the DUT.
5.5 Measuring equipment
The transient loss measurement equipment specified in IEC 61300-3-28 shall be connected to
the DUT and used to detect fast variation of attenuation during and after the test, unless
otherwise specified in the relevant specification.
6 Procedure
6.1 Preparation of DUT
Prepare the DUT according to the manufacturer’s instructions and as specified in the relevant
specification.
6.2 Preconditioning
Precondition the DUT for more than or equal to 2 h at the standard atmospheric conditions
specified in IEC 61300-1, unless otherwise specified in the relevant specification.
6.3 Initial examination and measurement
Complete initial examinations and measurements of the DUT as required by the relevant
specification.
Unless otherwise specified, visually examine the DUT in accordance with IEC 61300-3-1. Check
for evidence of any degradation in the DUT. The following are possible examples of degradation:
– broken, loose or damaged parts or accessories;
– breaking or damage to the cable jacket, seals, strain relief, or fibres;
– displaced, bent, broken or chipped parts.

6.4 Mounting and test procedure
The DUT shall be mounted rigidly to the fixture in a manner that simulates normal mounting as
closely as possible. Greater than 20 cm of optical fibre/cable shall be unsupported on both ends
of the DUT and be attached free of tension to the vibrating surface. Conduct the procedure in
accordance with IEC 60068-2-6, test Fc. The DUT shall be vibrated in three mutually
perpendicular axes coincident with the principal axes of the device. If the sample has axial
symmetry, the number of axes to be tested can be reduced to two. The vibration endurance
shall be performed by sweeping continuously between minimum and maximum frequency at a
specified rate. An example of vibration apparatus test is outlined in Figure 1.

Figure 1 – Example of vibration apparatus
6.5 Monitoring
The transient loss of the DUT shall be monitored during and after the test using a recording
mean such as a computer, oscilloscope or a digital data acquisition system with memory as
described in IEC 61300-3-28, unless otherwise specified in the relevant specification. Any
change in optical performance shall be within the limit given in the relevant specification.
6.6 Recovery
Allow the DUT to remain under standard atmospheric conditions for more than or equal to 2 h,
as defined in IEC 61300-1, unless otherwise specified in the relevant specification.
6.7 Final examination and measurement
After completion of the test, the DUT shall be removed from the fixtures, and the final
measurements shall be made, as defined by the relevant specification, to ensure that there is
no permanent damage to the DUT. The results of the final measurement shall be within the limit
established in the relevant specification.
Unless otherwise specified, visually examine the DUT in accordance with IEC 61300-3-1. Check
for evidence of any degradation in the DUT. The following are possible examples of degradation:
– broken, loose or damaged parts or accessories;
– breaking or damage to the cable jacket, seals, strain relief, or fibres;
– displaced, bent, broken or chipped parts.

– 8 – IEC 61300-2-1:2023 © IEC 2023
7 Severity
The severity consists of the combination of frequency range, vibration amplitude, sweep rate
and either number of sweeps or duration per axis. The severity shall be specified in the relevant
specification. Recommended values of the test parameters are given below in Table 1 through
Table 7 for the various configurations.
Table 1 – Recommended values of the test parameters for
connectors and passive components
Category Parameter Value
HD
Frequency range 10 Hz to 55 Hz
Categories C, C , OP, OP+,
HD
OP+ and E
Sweep rate 1 oct/min
Number of sweeps 15/axis
Amplitude 0,75 mm
HD
Frequency range 2 Hz to 200 Hz
Categories I and I
Sweep rate 1 oct/min
Number of sweeps 15/axis
Amplitude 15 mm at frequencies
below 9 Hz
Acceleration
50 m/s at frequencies
above 9 Hz
NOTE Categories are defined in IEC 61753-1.

Table 2 – Recommended values of the test parameters for
fibre management systems
Category Parameter Value
HD
Frequency range 5 Hz to 500 Hz
Categories C, C , OP, OP+,
HD HD
OP+ and OP
Sweep rate 1 oct/min
Number of sweeps 10/axis
Amplitude 3,5 mm below 9 Hz
Acceleration
10 m/s above 9 Hz
NOTE Categories are defined in IEC 61753-1.

Table 3 – Recommended values of the test parameters for
mechanical splices and field mountable connectors
Category Parameter Value
HD
Frequency range 10 Hz to 55 Hz
Categories C, C , OP, OP+,
HD HD
OP+ and OP
Sweep rate 1 oct/min
Number of sweeps 15/axis
Amplitude 0,75 mm
NOTE Categories are defined in IEC 61753-1.

Table 4 – Recommended values of the test parameters for
wall outlets and optical distribution frame modules
Category Parameter Value
HD
Frequency range 5 Hz to 500 Hz
Categories C and C
Sweep rate 1 oct/min
Number of sweeps 10/axis
Amplitude 1,5 mm at frequencies
below 9 Hz
Acceleration
5 m/s above 9 Hz
NOTE Categories are defined in IEC 61753-1.

Table 5 – Recommended values of the test parameters for hardened optical connectors
Category Parameter Value
Categories A, G, and S Frequency range 5 Hz to 500 Hz
Sweep rate 1 oct/min
Number of sweeps 10/axis
Amplitude 3,5 mm below 9 Hz
Acceleration
10 m/s above 9 Hz
NOTE Categories are defined in IEC 61753-1.

Table 6 – Recommended values of the test parameters for boxes and closures
Category Parameter Value
HD
Frequency range 5 Hz to 500 Hz
Categories C and C
Sweep rate 1 oct/min
Number of sweeps 10/axis
Amplitude 1,5 mm at frequencies
below 9 Hz
Acceleration
5 m/s above 9 Hz
Categories A, G, and S Frequency range 5 Hz to 500 Hz
Sweep rate 1 oct/min
Number of sweeps 10/axis
Amplitude 3,5 mm below 9 Hz
Acceleration
10 m/s above 9 Hz
NOTE Categories are defined in IEC 61753-1.

Table 7 – Recommended values of
...