SIST EN 61753-056-2:2013

Fibre optic interconnecting devices and passive components - Performance standard - Part 056-2: Single mode fibre pigtailed style optical fuse for category C - Controlled environment (IEC 61753-056-2:2012)

This part of IEC 61753 contains the minimum initial test and measurement requirements and severities which a fibre optical fuse satisfies in order for it to be categorised as meeting the requirements of single mode fibre pigtailed style optical fuse used in controlled environments. Optical performance specified in this document relates to in-line type configurations fuses only.

Lichtwellenleiter - Verbindungselemente und passive Bauteile – Betriebsverhalten – Teil 056-2: Optische Sicherung mit Einmoden-Pigtail für die Kategorie C – Kontrollierte Umgebung (IEC 61753-056-2:2012)

Dispositifs d’interconnexion et composants passifs à fibres optiques - Norme de performance - Partie 056-2 : Fusible optique de type fibre amorce en fibre unimodale pour catégorie C - Environnement contrôlé (CEI 61753-056-2:2012)

IEC 61753-056-2: 2012 contient les exigences et les sévérités initiales minimales d’essai et de mesure auxquelles un fusible optique est tenu de satisfaire pour entrer dans une catégorie satisfaisant aux exigences du fusible optique du type fibre amorce à fibre unimodale, utilisé dans des environnements contrôlés. La performance optique spécifiée dans le présent document concerne des fusibles ayant des configurations de type en ligne uniquement.
Mots clés: exigences mesure et initiale d’essai, fusible optique du type fibre amorce à fibre unimodale

Optični spojni elementi in pasivne komponente - Tehnični standard - 056-2. del: Svitkasta optična varovalka enorodnega vlakna za kategorijo C - Nadzorovano okolje (IEC 61753-056-2:2012)

Ta del standarda IEC 61753 zajema najmanjše začetne zahteve in stopnje zahtevnosti za preskuse in meritve, ki jih mora izpolnjevati optična varovalka, da ustreza zahtevam za svitkaste optične varovalke enorodnega vlakna, ki se uporabljajo v nadzorovanem okolju. V tem dokumentu navedena optična zmogljivost velja samo za varovalke z linijsko konfiguracijo.

General Information

• Status: Published
• Publication Date: 04-Mar-2013
• ICS: 29.120.50 - Fuses and other overcurrent protection devices
• ICS: 33.180.20 - Fibre optic interconnecting devices
• Technical Committee: iTEL - Communication cables
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 26-Feb-2013
• Due Date: 03-May-2013
• Completion Date: 05-Mar-2013
• Ref Project: EN 61753-056-2:2013 - Fibre optic interconnecting devices and passive components - Performance standard - Part 056-2: Single mode fibre pigtailed style optical fuse for category C - Controlled environment

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 61753-056-2:2013
01-april-2013
2SWLþQLVSRMQLHOHPHQWLLQSDVLYQHNRPSRQHQWH7HKQLþQLVWDQGDUGGHO
6YLWNDVWDRSWLþQDYDURYDONDHQRURGQHJDYODNQD]DNDWHJRULMR&1DG]RURYDQR
RNROMH,(&
Fibre optic interconnecting devices and passive components - Performance standard -
Part 056-2: Single mode fibre pigtailed style optical fuse for category C - Controlled
environment (IEC 61753-056-2:2012)
Lichtwellenleiter - Verbindungselemente und passive Bauteile – Betriebsverhalten – Teil
056-2: Optische Sicherung mit Einmoden-Pigtail für die Kategorie C – Kontrollierte
Umgebung (IEC 61753-056-2:2012)
Dispositifs d’interconnexion et composants passifs à fibres optiques - Norme de
performance - Partie 056-2 : Fusible optique de type fibre amorce en fibre unimodale
pour catégorie C - Environnement contrôlé (CEI 61753-056-2:2012)
Ta slovenski standard je istoveten z: EN 61753-056-2:2013
ICS:
29.120.50 9DURYDONHLQGUXJD Fuses and other overcurrent
PHGWRNRYQD]DãþLWD protection devices
33.180.20 3RYH]RYDOQHQDSUDYH]D Fibre optic interconnecting
RSWLþQDYODNQD devices
SIST EN 61753-056-2:2013 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 61753-056-2:2013

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SIST EN 61753-056-2:2013

EUROPEAN STANDARD
EN 61753-056-2

NORME EUROPÉENNE
February 2013
EUROPÄISCHE NORM

ICS 33.180.20


English version


Fibre optic interconnecting devices and passive components -
Performance standard -
Part 056-2: Single mode fibre pigtailed style optical fuse for category C -
Controlled environment
(IEC 61753-056-2:2012)


Dispositifs d’interconnexion et Lichtwellenleiter -
composants passifs à fibres optiques - Verbindungselemente und passive
Norme de performance - Bauteile - Betriebsverhalten -
Partie 056-2 : Fusible optique de type fibre Teil 056-2: Optische Sicherung mit
amorce en fibre unimodale Einmoden-Pigtail für die Kategorie C -
pour catégorie C - Kontrollierte Umgebung
Environnement contrôlé (IEC 61753-056-2:2012)
(CEI 61753-056-2:2012)




This European Standard was approved by CENELEC on 2013-01-08. 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.

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

Management Centre: Avenue Marnix 17, B - 1000 Brussels


© 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61753-056-2:2013 E

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SIST EN 61753-056-2:2013
EN 61753-056-2:2013 - 2 -

Foreword
The text of document 86B/3500/FDIS, future edition 1 of IEC 61753-056-2, 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 61753-056-2:2013.
The following dates are fixed:
(dop) 2013-10-08
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2016-01-08
• latest date by which the national
standards conflicting with the

document have to be withdrawn

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 61753-056-2:2012 was approved by CENELEC as a European
Standard without any modification.

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SIST EN 61753-056-2:2013
- 3 - EN 61753-056-2:2013
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  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.

Publication Year Title EN/HD Year

IEC 60793-2-50 - Optical fibres - EN 60793-2-50 -
Part 2-50: Product specifications - Sectional
specification for class B single-mode fibres


IEC 60869-1 - Fibre optic interconnecting devices and EN 60869-1 -
passive components - Fibre optic passive
power control devices -
Part 1: Generic specification


IEC 61300-1 - Fibre optic interconnecting devices and EN 61300-1 -
passive components - Basic test and
measurement procedures -
Part 1: General and guidance


IEC 61300-2-1 - Fibre optic interconnecting devices and EN 61300-2-1 -
passive components - Basic test and
measurement procedures -
Part 2-1: Tests - Vibration (sinusoidal)


IEC 61300-2-4 - Fibre optic interconnecting devices and EN 61300-2-4 -
passive components - Basic test and
measurement procedures -
Part 2-4: Tests - Fibre/cable retention


IEC 61300-2-9 - Fibre optic interconnecting devices and EN 61300-2-9 -
passive components - Basic test and
measurement procedures -
Part 2-9: Tests - Shock


IEC 61300-2-14 - Fibre optic interconnecting devices and EN 61300-2-14 -
passive components - Basic test and
measurement procedures -
Part 2-14: Tests - High optical power


IEC 61300-2-17 - Fibre optic interconnecting devices and EN 61300-2-17 -
passive components - Basic test and
measurement procedures -
Part 2-17: Tests - Cold


IEC 61300-2-18 - Fibre optic interconnecting devices and EN 61300-2-18 -
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 EN 61300-2-19 -
passive components - Basic test and
measurement procedures -
Part 2-19: Tests - Damp heat (steady state)

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SIST EN 61753-056-2:2013
EN 61753-056-2:2013 - 4 -
IEC 61300-2-22 - Fibre optic interconnecting devices and EN 61300-2-22 -
passive components - Basic test and
measurement procedures -
Part 2-22: Tests - Change of temperature


IEC 61300-2-42 - Fibre optic interconnecting devices and EN 61300-2-42 -
passive components - Basic test and
measurement procedures -
Part 2-42: Tests - Static side load for
connectors


IEC 61300-2-44 - Fibre optic interconnecting devices and EN 61300-2-44 -
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 EN 61300-3-2 -
passive components - Basic test and
measurement procedures -
Part 3-2: Examinations and measurements -
Polarization dependent loss in a single-mode
fibre optic device


IEC 61300-3-3 - Fibre optic interconnecting devices and EN 61300-3-3 -
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 EN 61300-3-7 -
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 61300-3-32 - Fibre optic interconnecting devices and EN 61300-3-32 -
passive components - Basic test and
measurement procedures -
Part 3-32: Examinations and measurements -
Polarisation mode dispersion measurement
for passive optical components

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SIST EN 61753-056-2:2013



IEC 61753-056-2

®


Edition 1.0 2012-12




INTERNATIONAL



STANDARD



















Fibre optic interconnecting devices and passive components – Performance

standard –

Part 056-2: Single mode fibre pigtailed style optical fuse for category C –


Controlled environment

























INTERNATIONAL

ELECTROTECHNICAL

COMMISSION

PRICE CODE
R


ICS 33.180.20 ISBN 978-2-83220-515-0



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


® Registered trademark of the International Electrotechnical Commission

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SIST EN 61753-056-2:2013
– 2 – 61753-056-2 © IEC:2012(E)
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Tests . 7
4 Test reports . 7
5 Performance requirements . 7
5.1 Sample size, sequencing and grouping. 7
5.2 Dimensions . 7
5.3 Test details and requirements . 8
Annex A (normative) Sample size and product sourcing requirements . 14
Annex B (normative) Power thresholds for optical fuses . 15
Annex C (informative) Example of dimensions for optical fuses . 16
Annex D (normative) Testing of optical fuses . 17

Figure C.1 – Optical fuse, in-line configuration, regularly without connectors . 16
Figure D.1 – Test set-up schematics . 17
Figure D.2 – Example of power threshold and blocking attenuation at threshold

measurements for sample 1280A of an optical fuse . 18
Figure D.3 – Response time curve of an optical fuse. 19
Figure D.4 – Response time testing set-up. 19


Table 1 – Performance requirements for optical fuses . 8
Table A.1 – Sample size and product sourcing requirements . 14
Table B.1 – Powers for optical fuses, single-mode . 15

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SIST EN 61753-056-2:2013
61753-056-2 © IEC:2012(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

FIBRE OPTIC INTERCONNECTING DEVICES
AND PASSIVE COMPONENTS –
PERFORMANCE STANDARD –

Part 056-2: Single mode fibre pigtailed
style optical fuse for category C –
Controlled environment

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.
International Standard IEC 61753-056-2 has been prepared by subcommittee SC86B: Fibre
optic interconnecting devices and passive components, of IEC technical committee TC86:
Fibre optics.
The text of this standard is based on the following documents:
FDIS Report on voting
86B/3500/FDIS 86B/3544/RVD

Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

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SIST EN 61753-056-2:2013
– 4 – 61753-056-2 © IEC:2012(E)
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 publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

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SIST EN 61753-056-2:2013
61753-056-2 © IEC:2012(E) – 5 –
INTRODUCTION
1) The International Electrotechnical Commission (IEC) draws attention to the fact that it is
claimed that compliance with this document may involve the use of a patent concerning
optical fuse.
IEC takes no position concerning the evidence, validity and scope of this patent right.
The holder of this patent right has assured the IEC that he/she is willing to negotiate
licences either free of charge or under reasonable and non-discriminatory terms and
conditions with applicants throughout the world. In this respect, the statement of the
holder of this patent right is registered with IEC. Information may be obtained from:
KiloLambda technologies, Ltd.
22a Wallenberg street,
Tel-Aviv 69719,
Israel
Attention is drawn to the possibility that some of the elements of this document may be the
subject of patent rights other than those identified above. IEC shall not be held
responsible for identifying any or all such patent rights.
ISO (www.iso.org/patents) and IEC (http://patents.iec.ch) maintain on-line data bases of
patents relevant to their standards. Users are encouraged to consult these data bases for
the most up-to-date information concerning patents.
US patent US-7162,114 B2, Optical Energy switching device and method", granted
January 9, 2007.
Japan patent 4376632, Optical Energy switching device and method", granted September
18, 2009.
2) The optical fuse is a passive device, designed to protect equipment and fibre cables from
damage due to optical overpower, spikes and surges. The optical fuse produces a
controlled, permanent, signal blocking at a predetermined power threshold in an optical
fibre transmission line. The optical fuse is wavelength independent over its entire specified
spectral range. IEC 60869-1 contains generic information on optical fuses. The optical
fuse has a maximum allowed power input P . Beyond this power it is dysfunctional
in max
and can let light through. Numerical values for P are given in Annex B.
in max

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SIST EN 61753-056-2:2013
– 6 – 61753-056-2 © IEC:2012(E)
FIBRE OPTIC INTERCONNECTING DEVICES
AND PASSIVE COMPONENTS –
PERFORMANCE STANDARD –

Part 056-2: Single mode fibre pigtailed
style optical fuse for category C –
Controlled environment



1 Scope
This part of IEC 61753 contains the minimum initial test and measurement requirements and
severities which a fibre optical fuse satisfies in order for it to be categorised as meeting the
requirements of single mode fibre pigtailed style optical fuse used in controlled environments.
Optical performance specified in this document relates to in-line type configurations fuses
only.
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 60869-1, Fibre optic interconnecting devices and passive components – Fibre optic
1
passive power control devices – Part 1: Generic specification
IEC 61300-1, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 1: General and guidance
IEC 61300-2-1, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-1: Tests – Vibration (sinusoidal)
IEC 613000-2-4, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-4: 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
1
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
___________
1
 To be published.

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SIST EN 61753-056-2:2013
61753-056-2 © IEC:2012(E) – 7 –
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 connectors
IEC 61300-2-44, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-44: Tests – Flexing of the strain relief of fibre optic
devices
IEC 61300-3-2, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-2: Examinations and measurements –Polarization
dependent loss in a single-mode fibre optic device
IEC 61300-3-3, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-3: Examinations and measurements – Active monitoring of
changes in attenuation and return loss
IEC 61300-3-7, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-7: Examinations and measurements – Wavelength
dependence of attenuation and return loss of single mode components
IEC 61300-3-32, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 3-32: Examinations and measurements – Polarization
mode dispersion measurement for passive optical components
3 Tests
All test methods are in accordance with the IEC 61300 series.
All tests are to be carried out to validate performance over the required operating wavelength
and power range. As a result, single or multiple spectral bands may be chosen for the
qualification in addition to threshold power.
4 Test reports
Fully documented test reports and supporting evidence shall be prepared and shall be
available for inspection as evidence that the tests have been carried out and complied with.
5 Performance requirements
5.1 Sample size, sequencing and grouping
Sample sizes for the tests are defined in Annex A.
5.2 Dimensions
Dimensions shall comply with either an appropriate IEC interface standard or with those given
in appropriate manufacturers’ drawings, where the IEC interface standard does not exist or
cannot be used.

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SIST EN 61753-056-2:2013
– 8 – 61753-056-2 © IEC:2012(E)
5.3 Test details and requirements
Table 1 specifies the optical environmental and mechanical performance requirements and
test methods for optical fuses pertaining to this standard.
Compliance to this standard requires demonstration of the ability to meet the performance
requirement in Table 1.
Table 1 – Performance requirements for optical fuses (1 of 6)
No. Tests Requirements Details
1 Insertion loss Operating wavelength range: Method: IEC 61300-3-7, test sample configuration
1 520 nm to1 625 nm according to Method B2.1

Insertion loss ≤ 1,5 dB Launch patchcord ≥ 2 m. Only the fundamental mode shall
length: propagate at the fuse interface and at the
Insertion loss is measured
detector.
with input power ≤ –5 dBm
Launch conditions: The wavelength of the source shall be longer
than cut-off wavelength of the fibre.
Source power Less than or equal or equal ± 0,05 dB over
stability:
the measuring period or at least 1 h
Wavelength range: 1 520 nm to 1 625 nm
Total uncertainty
≤ ± 0,05 dB
2 Return loss Method: IEC 61300-3-7 measurement, Method 1
≥ 35 dB Grade T
below power OCWR for grades T,R, U
≥ 40 dB Grade R
threshold
IEC 61300-3-7, measurement method 1
≥ 50 dB Grade U
OFDR for grade V
≥ 60 dB Grade V
Source: LD 1 520 nm and 1 625 nm
Return loss is measured with
Test every sample with the two wavelengths.
input power ≤ –5 dBm
Total uncertainty ≤± 2 dB
3 Return loss Method: IEC 61300-3-7, measurement method 1
≥ 30 dB
above power OCWR
Return loss is measured with
threshold, after
input power ≤ –5 dBm Source: LD 1 520 nm and 1 625 nm
fuse response
Test every sample with the two wavelengths.


Total uncertainty
≤ ± 2 dB
4 Polarization Method: IEC 61300-3-2, all polarization methods
≤0,2 dB
dependent loss
Over the specified operating Optical source
1 550 nm ± 10 nm

wavelength range Wavelength:
The samples shall be
Total uncertainty: ≤ ± 0,05 dB over the dynamic range to be
terminated onto single-mode
measured
fibres as per IEC 60793-2-
50, Type B 1.1, in either
coated fibres (primary and
secondary) or reinforced
cable format
5 Polarization ≤ 0,2 ps Method: IEC 61300-3-32, MPS method
mode dispersion
Over the specified operating Optical source 1 550 nm ± 10 nm

wavelength range Wavelength:
Total uncertainty:
≤ ± 0,05 dB over the dynamic range to be
measured

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SIST EN 61753-056-2:2013
61753-056-2 © IEC:2012(E) – 9 –
Table 1 (2 of 6)
No. Tests Requirements Details
6 High optical The fuse will not change its Method: IEC 61300-2-14
power insertion and return loss up
Optical source
1 550 nm ± 10 nm
to power threshold
Below power
Wavelength:
threshold Before and after the test the
Test power: 3 dB below power threshold
Insertion loss shall meet the
requirements of test 1
Test temperature:
25 °C ± 2 °C
Before and after the test the
Test duration: Long-term test: 96 h at test power
return loss shall meet the
requirements of test 2
The insertion loss change
during the test shall be
within ± 0,5 dB of the initial
value
7 High optical The fuse will block the Method: IEC 61300-2-14
power power from power threshold
to ≥ 30 dBm input power or
Optical source
Above power 1 550 nm ± 10 nm
higher value specified in
Wavelength:
threshold
Annex B
(destructive Test power: 3 dB above power threshold
Before the test the Insertion
test)
loss shall meet the
requirements of test 1
Test temperature:
25 °C ± 2 °C
After and during the test the
Insertion loss shall meet the
requirements of test 9
Test duration: Long-term test: 96 h at test power
Before and after the test the
return loss shall meet the
requirements of test 2
8 Power threshold Method: See Annex D for detailed test description.
The tolerance is ± 1 dB from
the specified optical fuse
(destructive The test power input is 1 dB to 3 dB above
power threshold
test) power threshold and the blocking attenuation
The fuse will meet the power is measured accordingly.
threshold requirements as
Samples from every batch will be
specified when operated at
destructively tested, all will comply.
the 3 specified temperatures
Optical source 1 550 nm

Wavelength:

Test temperature: 10 °C ± 2 °C
25 °C ± 2 °C
60 °C ± 2 °C
9 Blocking >30 dB Method: See Annex D for detailed test description.
attenuation at
The fuse will  meet the The test power input is 1 to 3 dB above
threshold
requirement as specified, power threshold and the blocking attenuation
(destructive when operated at the 3 is measured accordingly.
test) specified temperatures for
Samples from every batch will be
the specified duration
destructively tested, all will comply.
Optical source 1 550 nm
Wavelength:
Test duration: 96 h at test power
Test temperature:
10 °C ± 2 °C
25 °C ± 2 °C
60 °C ± 2 °C

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SIST EN 61753-056-2:2013
– 10 – 61753-056-2 © IEC:2012(E)
Table 1 (3 of 6)
No. Tests Requirements Details
10 Response time Method: See Annex D for detailed test description.
<100 µs
The test power input is 1 dB to 3 dB above
The fuse will meet the
power threshold and the blocking attenuation
requirement as specified,
when operated at the 3 is measured accordingly.
specified temperatures
Samples
...