Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 2-9: Tests - Shock

IEC 61300-2-9: 2017 defines a test method to reveal mechanical weakness and/or degradation of fibre optic devices when subjected to repetitive or non-repetitive mechanical shocks. It simulates infrequent repetitive or non-repetitive shocks likely to be encountered in normal service or during transportation. This third edition cancels and replaces the second edition published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- inserted clause "Terms and definitions";
- added precise descriptions to clause "Apparatus";
- added sub clause "Testing" into clause "Procedure";
- added "Bibliography".

Dispositifs d'interconnexion et composants passifs à fibroniques - Procédures fondamentales d'essais et de mesures - Partie 2-9: Essais - Chocs

IEC 61300-2-9:2017 définit une méthode d’essai destinée à mettre en évidence les faiblesses mécaniques et/ou les dégradations des dispositifs fibroniques lorsque ceux-ci sont soumis à des chocs mécaniques, répétitifs ou non. Cette procédure consiste à simuler les chocs peu fréquents, répétitifs ou non, qui sont susceptibles de se produire dans des conditions normales de fonctionnement ou au cours du transport. Cette troisième édition annule et remplace la deuxième édition parue en 2010. Cette édition constitue une révision technique.Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: article inséré «Termes et définitions», descriptions précises ajoutées à l’article «Appareillage».

General Information

Status
Published
Publication Date
05-Jan-2017
Current Stage
PPUB - Publication issued
Completion Date
06-Jan-2017
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IEC 61300-2-9
Edition 3.0 2017-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures –
Part 2-9: Tests – Shock
Dispositifs d’interconnexion et composants passifs fibroniques – Procédures
fondamentales d’essais et de mesures –
Partie 2-9: Essais – Chocs
IEC 61300-2-9:2017-01(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 61300-2-9
Edition 3.0 2017-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures –
Part 2-9: Tests – Shock
Dispositifs d’interconnexion et composants passifs fibroniques – Procédures
fondamentales d’essais et de mesures –
Partie 2-9: Essais – Chocs
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.20 ISBN 978-2-8322-4946-8

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

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

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 61300-2-9:2017 © IEC 2017
CONTENTS

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

1 Scope .............................................................................................................................. 5

2 Normative references ...................................................................................................... 5

3 Terms and definitions ...................................................................................................... 5

4 General description ......................................................................................................... 7

5 Apparatus ........................................................................................................................ 7

5.1 Shock machine ....................................................................................................... 7

5.1.1 General ........................................................................................................... 7

5.1.2 Repetition rate ................................................................................................. 8

5.1.3 Velocity change tolerances .............................................................................. 8

5.1.4 Cross axis motion ............................................................................................ 8

5.1.5 Acceleration measuring system ....................................................................... 8

5.2 Mounting fixture ...................................................................................................... 9

5.3 Optical power measuring equipment ....................................................................... 9

6 Procedure ........................................................................................................................ 9

6.1 Preparation of DUT ................................................................................................. 9

6.2 Pre-conditioning .................................................................................................... 10

6.3 Initial examinations and measurements ................................................................. 10

6.4 Testing ................................................................................................................. 10

6.5 Recovery .............................................................................................................. 10

6.6 Final examination and measurements ................................................................... 10

7 Shock severity ............................................................................................................... 11

8 Details to be specified ................................................................................................... 11

Bibliography .......................................................................................................................... 12

Figure 1 – Fixing points .......................................................................................................... 6

Figure 2 – Pulse shape and limits of tolerance for half-sine pulse ........................................... 7

Figure 3 – Frequency characteristics of the overall measuring system without low-pass

filter ........................................................................................................................................ 9

Table 1 – Required frequency characteristic values for the overall measuring system ............ 9

Table 2 – Severity for passive components and modules ...................................................... 11

Table 3 – Severity for fibre management systems and closures ............................................ 11

---------------------- Page: 4 ----------------------
IEC 61300-2-9:2017 © IEC 2017 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
BASIC TEST AND MEASUREMENT PROCEDURES –
Part 2-9: Tests – Shock
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

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2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

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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.

International Standard IEC 61300-2-9 has been prepared by subcommittee 86B: Fibre optic

interconnecting devices and passive components, of IEC technical committee 86: Fibre optics.

This bilingual version (2017-10) corresponds to the monolingual English version, published in

2017-01.

This third edition cancels and replaces the second edition published in 2010. This edition

constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous

edition:
a) inserted clause "Terms and definitions";
b) added precise descriptions to clause "Apparatus";
---------------------- Page: 5 ----------------------
– 4 – IEC 61300-2-9:2017 © IEC 2017
c) added sub clause "Testing" into clause "Procedure";
d) added "Bibliography".
The text of this International Standard is based on the following documents:
CDV Report on voting
86B/3979/CDV 86B/4017/RVC

Full information on the voting for the approval of this International Standard can be found in

the report on voting indicated in the above table.
The French version of this standard has not been voted upon.

This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

A list of all parts in the IEC 61300 series, published under the general title Fibre optic

interconnecting devices and passive components, 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 "http://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 publication 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.
---------------------- Page: 6 ----------------------
IEC 61300-2-9:2017 © IEC 2017 – 5 –
FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
BASIC TEST AND MEASUREMENT PROCEDURES –
Part 2-9: Tests – Shock
1 Scope

This part of IEC 61300 defines a test method to reveal mechanical weakness and/or

degradation of fibre optic devices when subjected to repetitive or non-repetitive mechanical

shocks. It simulates infrequent repetitive or non-repetitive shocks likely to be encountered in

normal service or during transportation.
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 60068-1, Environmental testing – Part 1: General and guidance

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

ISO 2041, Mechanical vibration, shock and condition monitoring – Vocabulary
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 2041 and

IEC 60068-1 apply.

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

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

point located on the fixture, on the table surface of the shock machine, or on the DUT as

close as possible to the fixing point and rigidly connected to it

Note 1 to entry A number of check points may be used to ensure the test requirements are satisfied.

Note 2 to entry If the DUT is attached by more than four fixing points, the relevant specification should state the

number of fixing points that are to be used as check points.
---------------------- Page: 7 ----------------------
– 6 – IEC 61300-2-9:2017 © IEC 2017

Note 3 to entry In special cases, for example, for large or complex DUTs, the check points will be prescribed by

the relevant specification.

Note 4 to entry If a small DUT is mounted on one fixture or a large number of small DUTs are mounted on one

fixture, or where there are a number of fixing points, a single check point (that is the reference point) may be

selected for the derivation of the control signal. This signal is then related to the fixture rather than to the fixing

points of the DUT(s). This procedure is only valid when the lowest resonance frequency of the loaded fixture is well

above the upper frequency of the test.
3.2
fixing point

point on the DUT in contact with the fixture (Figure 1a) or the table of the shock machine at a

location where the DUT is normally fastened in service

Note 1 to entry If a part of the real mounting structure is used as the fixture, the fixing points are taken as those

where the real mounting structure contacts the table (Figure 1b) and not where the product contacts the real

mounting structure.
DUT
Fixing points
Fixture
Table of shock-testing machine
IEC
a) Fixing points using a fixture
DUT
Real mounting structure
Fixing points
Table of shock-testing machine
IEC
b) Fixing points using a real mounting structure as a fixture
Figure 1 – Fixing points
3.3
repetition rate
number of shocks per second
3.4
shock severity

combination of the peak acceleration, the duration of the nominal pulse and the number of

shocks
---------------------- Page: 8 ----------------------
IEC 61300-2-9:2017 © IEC 2017 – 7 –
3.5
velocity change

absolute value of the sudden change of velocity resulting from the application of the specified

acceleration
4 General description

A device under test (DUT) is mounted on the table of the shock machine and is subjected to

half-sinusoidal shock pulses. The DUT is exposed to two or three shock pulses applied in

each direction of three mutually perpendicular axes in accordance with severities (see

Clause 7).

Wherever possible, the severity of the pulse applied to the DUT should be such as to

reproduce the effects of the actual transport or operational environment to which the DUT will

be subjected, or to satisfy the design requirements. The DUT is always mounted to the fixture

or the table of the shock machine during testing.
5 Apparatus
5.1 Shock machine
5.1.1 General

The shock machine may be of the free fall, resilient rebound, nonresilient, hydraulic,

compressed gas or other activating type. The shock machine shall be capable of generating a

calibrated acceleration when loaded with a DUT, with or without a fixture. The shock machine

shall be capable of generating a half-sinusoidal excitation measured at the checkpoints, within

the tolerance shown by the solid lines in Figure 2.
Integration time
1,5 D
1,2 A
A
0,8 A
+0,2 A
0,2 A 0,2 A
0 0
–0,2 A –0,2 A
0,1 D
0,4 D
D D
2,5 D 2,5 D
2,4 D = T
6 D = T
IEC
Time (relative value)
Key
– – – nominal pulse
A = peak acceleration of nominal pulse
tolerence

T = minimum time during which the pulse shall be monitored for shocks produced using a conventional shock

machine
D = duration of nominal pulse

T = minimum time during which the pulse shall be monitored for shocks produced using a vibration generator

Figure 2 – Pulse shape and limits of tolerance for half-sine pulse
Acceleration (relative value)
---------------------- Page: 9 ----------------------
– 8 – IEC 61300-2-9:2017 © IEC 2017
5.1.2 Repetition rate

The repetition rate shall be such that the relative motion within the DUT between shocks shall

be substantially zero and the value of acceleration at the check point shall be within the limits

shown in Figure 2.
5.1.3 Velocity change tolerances

For all pulse shapes, the actual velocity change shall be within ±15 % of the value

corresponding to the nominal pulse.

Where the velocity change is determined by integration of the actual acceleration pulse, this

shall be effected from 0,4 D before the pulse to 0,1 D beyond the pulse, where D is the

duration of the nominal pulse.

If the velocity change tolerance cannot be achieved without the use of elaborate facilities, the

relevant specification shall state the alternative procedure to be adopted.
5.1.4 Cross axis motion

The positive or negative peak acceleration at the check point(s), perpendicular to the intended

shock direction, shall not exceed 30 % of the value of the peak acceleration of the nominal

pulse in the intended direction, when determined by 5.1.5.

If the cross axis motion tolerance cannot be achieved, the relevant specification shall state

the alternative procedure to be adopted.
5.1.5 Acceleration measuring system

The characteristics of the measuring system shall be such that it can be determined that the

true value of the actual pulse, as measured above, in the intended direction at the

checkpoint(s) is within the tolerances required by Figure 2.

The requirements of Figure 3 apply to the frequency response of the measuring system

without the use of a low-pass filter on the control signal. When a low-pass filter is used, the

characteristics of the filter should be such that its cut-off frequency fg (–3 dB point) is not

lower than:
1,5
fg =
where
fg is the cut-off frequency of a low-pass filter in kHz;
D is the duration of nominal pulse in ms.

The frequency response of the overall measuring system, which includes the accelerometer,

can have a significant effect on the accuracy and shall be within the limits shown in Figure 3

and Table 1.
---------------------- Page: 10 ----------------------
IEC 61300-2-9:2017 © IEC 2017 – 9 –
24 dB/octave
–10
f f f f
1 2 3 4
Frequency (Hz)
IEC
Figure 3 – Frequency characteristics of the overall measuring system
without low-pass filter
Table 1 – Required frequency characteristic values
for the overall measuring system
Duration of pulse Low-frequency High-frequency Frequency beyond
cut-off cut-off which the response may
rise above +1 dB
ms Hz kHz kHz
D f f f f
1 2 3 4
1 4 20 10 20
11 0,5 2 1 2
SOURCE: adapted from IEC 60068-2-27:2008
5.2 Mounting fixture

The DUT shall be prepared and mounted with accessories as specified in the relevant

specification and fastened to the table of the shock machine.
5.3 Optical power measuring equipment

Unless otherwise specified, measuring equipment specified in IEC 61300-3-28 shall be

connected to the DUT for monitoring the transient loss to detect fast variation of attenuation.

6 Procedure
6.1 Preparation of DUT

Prepare the DUT according to the manufacturer´s instructions or as specified in the relevant

specification.
Acceleration (relative value) (dB)
---------------------- Page: 11 ----------------------
– 10 – IEC 61300-2-9:2017 © IEC 2017
6.2 Pre-conditioning

Pre-condition the DUT for 2 h at the standard atmospheric condition specified in IEC 61300-1

unless otherwise specified in the relevant specification.
6.3 Initial examinations and measurements

Complete initial examinations and measurements of the DUT as required by the relevant

specification.
6.4 Testing

The DUT shall be mounted rigidly to the fixture in a manner that simulates normal mounting

as closely as possible. A minimum length of 200 mm of optical fibre/cable shall be

unsupported on both ends of the DUT and be attached free of tension to the table of a shock

machine. Conduct the procedure as outlined in 6.5 and 6.6.

The number of shocks prescribed by the relevant specification shall be applied successively

in each direction of three mutually perpendicular axes of the DUT. When testing a number of

identical DUTs, they may be oriented so that the shocks are applied simultaneously along

these three axes (see Clause 7).

Where the position of the DUT, when mounted or transported, is known, and since shocks are

generally of greatest significance in one direction of one axis, the relevant specification shall

state the specified number of shocks that shall be applied and in which axis, direction and

position. Otherwise, three axes and two directions shall be tested. For example, usually the

highest levels of shock acceleration are along the vertical axis. When the position during

transportation is known, the shocks should be applied in what will be the vertical axis in the

upward direction. Where the position is unknown, the specified number of shocks shall be

applied in each of the axes prescribed by the relevant specification (see Clause 7).

The relevant specification shall state whether the DUT shall operate during testing and if any

functional monitoring is required.
6.5 Recovery

Allow the DUT to remain on the fixture for 1 min unless otherwise specified in the relevant

specification.
6.6 Final examination and measurements

On completion of the test, remove all fixtures, clean the DUT in accordance with the

manufacturer’s instruction and inspect the DUT and make final measurements as defined by

the relevant specification, to ensure that there is no permanent damage to the DUT. The

relevant specification shall provide the criteria upon which the acceptance or rejection of the

DUT shall be based.

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
• broken, loose or damaged parts and/or accessories,
• broken or damaged cable sheath, seals, strain relief or fibres, and
• displaced, bent, broken or damaged parts.
---------------------- Page: 12 ----------------------
IEC 61300-2-9:2017 © IEC 2017 – 11 –
7 Shock severity

The Shock severity consists of the combination of peak acceleration, the duration of the

nominal pulse and number of shocks. The severity shall be specified in the relevant

specification. Recommended values of the test parameters are given in Tables 2 and 3.

Table 2 – Severity for passive components and modules
Parameter Value
Wave form Half sinusoidal
Acceleration Component or module mass ≤ 0,125 kg:
5 000 m/s
Modules:
2 000 m/s for: 0,125 kg < module mass ≤ 0,225 kg
500 m/s for: 0,225 kg < module mass ≤ 1 kg
Duration 1 ms
Number of shocks 2 directions, 2 shocks per axis
Number of axes 3 mutually perpendicular
Table 3 – Severity for fibre management systems and closures
Parameter Value
Wave form Half sinusoidal
Acceleration 150 m/s
Duration 11 ms
Number of shocks 2 directions, 3 shocks per axis
Number of axes 3 mutually perpendicular
8 Details to be specified

The following details, as applicable, shall be specified in the relevant specification:

• initial examinations and measurements and performance requirements;
• examinations and measurements during test and performance requirements;
• final examinations and measurements and performance requirements;
• deviations from test procedure;
• additional pass/fail criteria;
• test conditions.
---------------------- Page: 13 ----------------------
– 12 – IEC 61300-2-9:2017 © IEC 2017
Bibliography
IEC 60068-2-27:2008, Environmental testing – Part 2-27: Tests – Test
...

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