BS EN 61753-053-2:2014

BSI Standards Publication

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


BRITISH STANDARD

BS EN 61753-053-2:2014
National foreword

This British Standard is the UK implementation of EN 61753-053-2:2014. It
is identical to IEC 61753-053-2:2014.
The UK participation in its preparation was entrusted by Technical
Committee GEL/86, Fibre optics, to Subcommittee GEL/86/2, Fibre optic
interconnecting devices and passive components.
A list of organizations represented on this committee can be obtained on
request to its secretary.
This publication does not purport to include all the necessary provisions of
a contract. Users are responsible for its correct application.
© The British Standards Institution 2014.
Published by BSI Standards Limited 2014
ISBN 978 0 580 81741 0

ICS 33.180.20

Compliance with a British Standard cannot confer immunity from
legal obligations.

This British Standard was published under the authority of the
Standards Policy and Strategy Committee on 31 August 2014.

Amendments/corrigenda issued since publication
Date

Text affected


BS EN 61753-053-2:2014

EUROPEAN STANDARD

EN 61753-053-2

NORME EUROPÉENNE
EUROPÄISCHE NORM

July 2014

ICS 33.180.20

English Version

Fibre optic interconnecting devices and passive components Performance standard - Part 053-2: Non-connectorized singlemode fibre, electrically controlled, variable optical attenuator for

category C - Controlled environments
(IEC 61753-053-2:2014)
Dispositifs d'interconnexion et composants passifs à fibres
optiques - Norme de performance - Partie 053-2:
Affaiblisseur optique variable commandé électriquement, à
fibres unimodales non connectorisé pour la catégorie C Environnements contrôlés
(CEI 61753-053-2:2014)

Lichtwellenleiter - Verbindungselemente und passive
Bauteile - Betriebsverhalten - Teil 053-2: Nicht mit
Steckverbindern versehene, elektrisch kontrolliert
änderbare optische Dämpfungsglieder für Einmodenfasern
für die Kategorie C - Kontrollierte Umgebung
(IEC 61753-053-2:2014)

This European Standard was approved by CENELEC on 2014-04-23. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung


CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2014 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 61753-053-2:2014 E


BS EN 61753-053-2:2014
EN 61753-053-2:2014

-2-

Foreword
The text of document 86B/3645/CDV, future edition 1 of IEC 61753-053-2, prepared by SC 86B "Fibre
optic interconnecting devices and passive components" of IEC/TC 86 "Fibre optics" was submitted to
the IEC-CENELEC parallel vote and approved by CENELEC as EN 61753-053-2:2014.
The following dates are fixed:
–

latest date by which the document has to be implemented at
national level by publication of an identical national
standard or by endorsement

(dop)

2015-01-23

–

latest date by which the national standards conflicting with

the document have to be withdrawn

(dow)

2017-04-23

Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.

Endorsement notice
The text of the International Standard IEC 61753-053-2:2014 was approved by CENELEC as a
European Standard without any modification.


-3-

BS EN 61753-053-2:2014
EN 61753-053-2:2014

Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.


NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.

Publication
IEC 60793-2-50

Year
-

IEC 60794-2-50

-

IEC 60869-1

-

IEC 61300

series

IEC 61300-2-1

-

IEC 61300-2-4

-

IEC 61300-2-9


-

IEC 61300-2-14

-

IEC 61300-2-17

-

Title
Optical fibres -- Part 2-50: Product
specifications - Sectional specification for
class B single-mode fibres
Optical fibre cables -- Part 2-50: Indoor
cables - Family specification for simplex
and duplex cables for use in terminated
cable assemblies
Fibre optic interconnecting devices and
passive components - Fibre optic passive
power control devices -- Part 1: Generic
specification
Fibre optic interconnecting devices and
passive components - Basic test and
measurement procedures
Fibre optic interconnecting devices and
passive components - Basic test and
measurement procedures -- Part 2-1: Tests
- Vibration (sinusoidal)

Fibre optic interconnecting devices and
passive components - Basic test and
measurement procedures -- Part 2-4: Tests
- Fibre/cable retention
Fibre optic interconnecting devices and
passive components - Basic test and
measurement procedures -- Part 2-9: Tests
- Shock
Fibre optic interconnecting devices and
passive components - Basic test and
measurement procedures -- Part 2-14:
Tests - High optical power
Fibre optic interconnecting devices and
passive components - Basic test and
measurement procedures -- Part 2-17:
Tests - Cold

EN/HD
EN 60793-2-50

Year
-

EN 60794-2-50

-

EN 60869-1

-


EN 61300

series

EN 61300-2-1

-

EN 61300-2-4

-

EN 61300-2-9

-

+AC
EN 61300-2-14

2011
-

EN 61300-2-17

-


BS EN 61753-053-2:2014
EN 61753-053-2:2014

IEC 61300-2-18

-

IEC 61300-2-19

-

IEC 61300-2-22

-

IEC 61300-2-42

-

IEC 61300-3-2

-

IEC 61300-3-3

-

IEC
(mod)

61300-3-7-

IEC 61300-3-14


-

IEC 61300-3-21

-

IEC 61753-1

2007

IEC/TR 62343-6-5 -

-4Fibre optic interconnecting devices and
passive components - Basic test and
measurement procedures -- Part 2-18:
Tests - Dry heat - High temperature
endurance
Fibre optic interconnecting devices and
passive components - Basic test and
measurement procedures -- Part 2-19:
Tests - Damp heat (steady state)
Fibre optic interconnecting devices and
passive components - Basic test and
measurement procedures -- Part 2-22:
Tests - Change of temperature
Fibre optic interconnecting devices and
passive components - Basic test and
measurement procedures -- Part 2-42:
Tests - Static side load for strain relief

Fibre optic interconnecting devices and
passive components - Basic test and
measurement procedures -- Part 3-2:
Examinations
and
measurements
Polarization dependent loss in a singlemode fibre optic device
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
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
Fibre optic interconnecting devices and
passive components - Basic test and
measurement procedures -- Part 3-14:
Examinations
and
measurements
Accuracy and repeatability of the
attenuation settings of a variable attenuator
Fibre optic interconnecting devices and

passive components - Basic test and
measurement procedures - Part 3-21:
Examinations
and
measurements
Switching time
Fibre optic interconnecting devices and
passive components performance standard
-- Part 1: General and guidance for
performance standards
Dynamic modules - Part 6-5: Design guide
- Investigation of operating mechanical
shock and vibration tests for dynamic
modules

EN 61300-2-18

-

EN 61300-2-19

-

EN 61300-2-22

-

EN 61300-2-42

-


EN 61300-3-2

-

EN 61300-3-3

-

EN 61300-3-7

-

+FprAA
EN 61300-3-14

2011
-

FprEN 61300-3-21

EN 61753-1

2007

-

-



–2–

BS EN 61753-053-2:2014
IEC 61753-053-2:2014 © IEC 2014

CONTENTS
1

Scope .............................................................................................................................. 5

2

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

3

Terms and definitions ...................................................................................................... 6

4

Test conditions ................................................................................................................ 6

5

Test report ....................................................................................................................... 7

6

Reference components .................................................................................................... 7


7

Performance requirements .............................................................................................. 7

7.1
Dimensions ............................................................................................................. 7
7.2
Test details and requirements ................................................................................. 7
Annex A (normative) Sample size ........................................................................................ 11
Bibliography .......................................................................................................................... 12
Table 1 – Single-mode spectral bands .................................................................................... 7
Table 2 – Test details and requirements ................................................................................. 8
Table A.1 – Number of samples for each test ........................................................................ 11


BS EN 61753-053-2:2014
IEC 61753-053-2:2014 © IEC 2014

–5–

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

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 61753-1:2007.

2

Normative references

The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. 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/cable retention
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 – High temperature endurance
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–

BS EN 61753-053-2:2014
IEC 61753-053-2:2014 © IEC 2014

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 connectors
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 – Accuracy and
repeatability of the attenuation settings of a variable 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
and bounce time

IEC 61753-1:2007, Fibre optic interconnecting devices and passive components performance
standard – Part 1: General and guidance for performance standard
IEC TR 62343-6-5, Dynamic modules – Part 6-5: Investigation of operating mechanical shock
and vibration tests for dynamic modules

3

Terms and definitions

For the purposes of this document, the terms and definitions given in IEC 60869-1, as well as
the following, apply.
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 are in accordance with the IEC 61300 series. The
samples shall be terminated onto single-mode fibres as per IEC 60793-2-50, category B1.1,
B1.3 or B6 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



BS EN 61753-053-2:2014
IEC 61753-053-2:2014 © IEC 2014

–7–

attenuator 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

NOTE

5

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.

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
7.1

Performance requirements
Dimensions

Dimensions shall comply with those given in appropriate manufacturers’ drawings.
7.2

Test details and requirements


The test details and requirements are shown in Table 2. The word "Att." means attenuation
value of the device under test. 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.


–8–

BS EN 61753-053-2:2014
IEC 61753-053-2:2014 © IEC 2014

Table 2 – Test details and requirements
No
1

Tests
Attenuation
(insertion loss)

Requirements
Launch fibre length:

≥ 2,0 m

Source:

Unpolarized

Measurement
uncertainty:


± 0,1 dB

Note:

Attenuation (insertion loss) with
Att. = 0 dB

Launch fibre length:

≥ 2,0 m

Source:

Unpolarized

Measurement
uncertainty:

± 0,5 dB

≤ 0,7 dB (Att. ≤ 10 dB)

Launch fibre length:

≥ 2,0 m

≤ 1,0 dB (Att. > 10 dB)

Source:


Unpolarized

Measurement
uncertainty:

±0,05 dB

≤ 0,3 dB (Att. ≤ 10 dB)

Launch fibre length:

≥ 2,0 m

≤ 0,5 dB (Att. > 10 dB)

Measurement
uncertainty:

± 0,05 dB

≥ 40 dB

Launch fibre length:

≥2,0 m

Source:

Unpolarized


Measurement
uncertainty:

±1 dB

Launch fibre length:

≥ 2,0 m

Measurement
uncertainty:

± 1 ms

Launch fibre length:

≥ 2,0 m

Source:

Unpolarized

Measurement
uncertainty:

± 0,1 dB

Launch fibre length:


≥ 2,0 m

Source:

Unpolarized

Measurement
uncertainty:

± 0,1 dB

Optical power:

300 mW

Wavelength:

1 550 nm

Duration of the
optical power
exposure:

30 min

Temperature:

60 °C ± 2 °C

Relative humidity:


+2
93 − 3 % RH

≤1,5 dB

IEC 61300-3-7

2

Variable
attenuation
range

≥20 dB

IEC 61300-3-7
3

Wavelength
dependent loss
IEC 61300-3-7

4

Polarization
dependent loss
(PDL)
IEC 61300-3-2


5

Return loss
IEC 61300-3-7

6

Response time

≤ 20 ms

IEC 61300-3-21
7

Accuracy of the
setting
attenuation
value

Details

±15 % of set value (in dB)

(if applicable)
IEC 61300-3-14
8

Repeatability of
the setting
attenuation

value

± 5 % of set value (in dB)

(if applicable)
IEC 61300-3-14
9

High optical
power
IEC 61300-2-14

Before and after the test,
the limits of insertion loss
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



BS EN 61753-053-2:2014
IEC 61753-053-2:2014 © IEC 2014

–9–

Table 2 (continued)
No
10

Tests
Cold
IEC 61300-2-17

Requirements
Before and after the test,
the limits of insertion loss
and return loss of test no.
1 and 5 shall be met.

Details
Temperature:

–10 °C ± 2 °C

Duration of exposure: 96 h

The insertion loss change
after the test shall be

within ± 0,3 dB of the
initial value
11

High temperature
endurance
IEC 61300-2-18

Before and after the test,
the limits of insertion loss
and return loss of test no.
1 and 5 shall be met.

Temperature:

+ 60 °C ± 2 °C

Duration of exposure: 96 h

The insertion loss change
after the test shall be
within ± 0,3 dB of the
initial value
12

Damp heat
(steady state)
IEC 61300-2-19

Before and after the test,

the limits of insertion loss
and return loss of test no.
1 and 5 shall be met.

Temperature:

+ 40 °C ± 2 °C

Relative humidity:

+2
93 − 3 % RH

During the test, the
insertion loss change is
monitored.

Duration of exposure: 96 h

During and after the test,
the insertion loss change
shall be within ± 0,3 dB of
the initial value
13

Change of
temperature
IEC 61300-2-22

High temperature:


+ 60 °C ± 2 °C.

Low temperature:

–10 °C ± 2 °C.

Number of cycles:

5 cycles

Duration at extreme
temperature:

60 min

During and after the test,
the insertion loss change
shall be within ± 0,5 dB of
the initial value

Rate of change:

1 °C/min

Before and after the test,
the limits of insertion loss
and return loss of test no.
1 and 5 shall be met.


Frequency range:

5 Hz – 55 Hz

Number of axes:

3 orthogonal axes.

Number of sweeps:

15 /axis

Sweep rate:

1 octave./min

Amplitude:

0,75 mm

Tensile force:

2 N for reinforced cable

Number of cycles:

30 cycles, ±90°

Before and after the test,
the limits of insertion loss

and return loss of test no.
1 and 5 shall be met.
During the test, the
insertion loss change is
monitored.

14

Vibration
IEC 61300-2-1

The insertion loss change
after the test shall be
within ± 0,3 dB of the
initial value
15

Optical fibre
cable flexing
IEC 61300-2-44

Before and after the test,
the limits of insertion loss
and return loss of test no.
1 and 5 shall be met.
The insertion loss change
after the test shall be
within ± 0,3 dB of the
initial value



– 10 –

BS EN 61753-053-2:2014
IEC 61753-053-2:2014 © IEC 2014

Table 2 (continued)
No
16

Tests
Fibre/cable
retention
IEC 61300-2-4

Requirements
Before and after the test,
the limits of insertion loss
and return loss of test no.
1 and 5 shall be met.
The insertion loss change
after the test shall be
within ± 0,3 dB of the
initial value

Details
Magnitude and rate
of application:

(10 ± 1) N at 5 N/s for reinforced

cables.
(5,0 ± 0,5) N at 0,5 N/s for
secondary coated fibres.
(2,0 ± 0,2) N at 0,5 N/s for primary
coated fibres.

Duration of the test:

120 s duration at 10 N
60 s duration at 2 N or 5 N

17

Static side load
IEC 61300-2-42

Before and after the test,
the limits of insertion loss
and return loss of test no.
1 and 5 shall be met.

Point of application
of tensile load:

0,3 m from the exit point of the 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

Magnitude and
duration of the
tensile load:

1 N for 1 h for reinforced cable

Direction of
The insertion loss change
application:
after the test shall be
within ±0,3 dB of the initial
value
18

Shock
IEC 61300-2-9

Before and after the test,
the limits of insertion loss
and return loss of tests 1
and 5 shall be met.
The insertion loss change
after the test shall be
within ± 0,3 dB of the
initial value


19

Operational
vibration
IEC 61300-2-1

20

Operational
shock
IEC 61300-2-9

During the test the
insertion loss shall be
within ± 0,3 dB of initial
value under ambient
environmental conditions

During the test the
insertion loss shall be
within ± 0,3 dB of original
value under ambient
environmental conditions

Acceleration:

0,2 N for 5 min for secondary
coated fibres
Two mutually perpendicular
directions


Components: 5 000 m/s 2
Modules:
0,125 kg < module mass ≤0,225 kg:
2 000 m/s 2
0,225 kg < module mass ≤1 kg:
500 m/s 2

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

Frequency range:

50 – 500 Hz

Condition:

2 G for three orthogonal axes

Duration:


2 sweeps/direction

Sampling rate:

5 KHz

Note:

Test condition is based on IEC
TR 62343-6-5

Condition:

40 G, 5 ms for three orthogonal
axes

Duration:

3 times/direction

Sampling rate:

5 KHz

Note:

Test condition is based on IEC
TR 62343-6-5



BS EN 61753-053-2:2014
IEC 61753-053-2:2014 © IEC 2014

– 11 –

Annex A
(normative)
Sample size
All samples shall be subjected to tests 1 – 5. 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 – Number of samples for each test
No

Tests

Sample size

1

Insertion loss

12

2

Variable attenuation range

12


3

Wavelength dependent loss

12

4

Polarisation dependent loss (PDL)

12

5

Return loss

12

6

Response time

6

7

Accuracy of the setting attenuation value

6


8

Repeatability of the setting attenuation value

6

9

High optical power

6

10

Cold

6

11

High temperature endurance

6

12

Damp heat (steady state)

6


13

Change of temperature

6

14

Vibration (sinusoidal)

6

15

Optical fibre cable flexing

6

16

Fibre/cable retention

6

17

Static side load

6


18

Shock

6

19

Operational vibration

3

20

Operational shock

3


– 12 –

BS EN 61753-053-2:2014
IEC 61753-053-2:2014 © IEC 2014

Bibliography
ITU-T Recommendation G series – Supplement No. 39, Optical system design and
engineering considerations

_____________



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