SIST EN 60793-2-10:2016

Optical fibres - Part 2-10: Product specifications - Sectional specification for category A1 multimode fibre (IEC 60793-2-10:2015)

This part of IEC 60793 is applicable to optical fibre types A1a, A1b, and A1d. These fibres are
used or can be incorporated in information transmission equipment and optical fibre cables.
Type A1a applies to 50/125 μm graded index fibre. Three bandwidth grades are defined as
A1a.1, A1a.2 and A1a.3. Each of these bandwidth grades is defined for two levels of
macrobend loss performance that are distinguished by “a” or “b” suffix. Those with suffix “a”
are specified to meet traditional macrobend loss performance levels. Those with suffix “b” are
specified to meet enhanced macrobend loss (i.e. lower loss) performance levels.
Type A1b applies to 62,5/125 μm graded index fibre and A1d applies to 100/140 μm graded
index fibre.
Other applications include, but are not restricted to, the following: short reach, high bit-rate
systems in telephony, distribution and local networks carrying data, voice and/or video
services; on-premises intra-building and inter-building fibre installations including data
centres, local area networks (LANs), storage area networks (SANs), private branch
exchanges (PBXs), video, various multiplexing uses, outside telephone cable plant use, and
miscellaneous related uses.
Three types of requirements apply to these fibres:
• general requirements, as defined in IEC 60793-2;
• specific requirements common to the category A1 multimode fibres covered in this
standard and which are given in Clause 3;
• particular requirements applicable to individual fibre types or specific applications, which
are defined in the normative family specification annexes.

Lichtwellenleiter - Teil 2-10: Produktspezifikationen - Rahmenspezifikation für Mehrmodenfasern der Kategorie A1

Fibres optiques - Partie 2-10: Spécifications de produits - Spécification intermédiaire pour les fibres multimodales de catégorie A1

IEC 60793-2-10:2015 est applicable aux fibres optiques de type A1a, A1b et A1d. Ces fibres sont utilisées ou peuvent être intégrées dans des équipements destinés à la transmission de l'information et dans des câbles à fibres optiques. Le type A1a s'applique aux fibres à gradient d'indice de 50/125 μm. Il existe trois grades de largeur de bande, appelés A1a.1, A1a.2 et A1a.3. Chacun de ces grades de largeur de bande est défini pour deux niveaux de performances en matière de pertes dues aux macrocourbures, qui se distinguent par le suffixe "a" ou "b". Ceux qui comportent le suffixe "a" sont spécifiés de façon à satisfaire aux niveaux de performances classiques en matière de pertes dues aux macrocourbures. Ceux qui comportent le suffixe "b" sont spécifiés de façon à satisfaire aux niveaux de performances avancés en matière de pertes dues aux macrocourbures (c'est-à-dire des niveaux de perte plus faibles). Le type A1b s'applique aux fibres à gradient d'indice de 62,5/125 μm et le type A1d à celles de gradient d'indice de 100/140 μm. D'autres applications comprennent, mais sans s'y limiter, ce qui suit:
- les systèmes téléphoniques de courtes distances à haut débit, les réseaux de distribution et les réseaux locaux qui transportent des données, la voix et/ou des services vidéo;
- et les connexions par fibres intra ou inter bâtiment dans les locaux utilisateurs, englobant les centres de traitement de données, les réseaux locaux (LAN), les réseaux dédiés sauvegarde (SAN), les centraux téléphoniques privés (PABX), la vidéo, les différentes utilisations de multiplexage, l'utilisation d'une installation de câble du réseau téléphonique externe et les différentes utilisations associées.
Trois types d'exigences s'appliquent à ces fibres:
- les exigences générales, qui sont définies dans l'IEC 60793-2;
- des exigences spécifiques communes aux fibres multimodales de catégorie A1, couvertes par la présente norme et qui sont données à l'Article 3;
- des exigences particulières applicables à des types particuliers  de fibres ou à des applications spécifiques, qui sont définies dans les spécifications de famille figurant dans les annexes normatives.
Cette cinquième édition annule et remplace la quatrième édition parue en 2011. Cette édition constitue une révision technique. La présente édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- ajout des fibres multimodales à macrocourbures améliorées A1a.1b, A1a.2b et A1a.3b;
- intégration de la longueur d'onde d'essai et de la longueur d'échantillon spécifiées pour le diamètre du coeur (CD), l'ouverture numérique (NA), le retard de mode différentiel (DMD), et inclusion des valeurs de seuil pour le CD et la NA;
- ajout d'une longueur d'échantillon pour la largeur de bande à 850 nm des fibres A1a et A1b.
Mots clés: fibres optiques de type A1a, A1b et A1d

Optična vlakna - 2-10. del: Specifikacije izdelka - Področna specifikacija za večrodna vlakna kategorije A1 (IEC 60793-2-10:2015)

Ta del standarda IEC 60793 se uporablja za vrste optičnih vlaken A1a, A1b in A1d. Ta vlakna se uporabljajo ali jih je mogoče vgraditi v opremo za prenos informacij in optične kable. Vrsta A1a se uporablja za vlakno z zveznim lomnim likom 50/125 μm. Opredeljene so tri stopnje pasovne širine: A1a.1, A1a.2 in A1a.3. Vsaka od teh stopenj je določena za dve ravni odpornosti na makropregibe, ki ju ločujemo s priponama »a« in »b«. Stopnje s pripono »a« ustrezajo ravnem običajne odpornosti na makropregibe. Stopnje s pripono »b« ustrezajo ravnem izboljšane odpornosti na makropregibe (tj. večja odpornost).
Vrsta A1b se uporablja za vlakno z zveznim lomnim likom 62,5/125 μm in vrsta A1d se uporablja za vlakno z zveznim lomnim likom 100/140 μm.
Drugi načini uporabe med drugim vključujejo: povezave kratkega dosega, sisteme z visoko bitno hitrostjo na področju telefonije, distribucijska in lokalna omrežja, prenos podatkov, glasovne in/ali video storitve; napeljave vlaken za povezave znotraj enega objekta in med več objekti na mestu uporabe, vključno s podatkovnimi centri, lokalna omrežja (LAN), pomnilniška omrežja (SAN), zasebna telefonska omrežja (PBX), video storitve, različne uporabe multipleksiranja, uporabo zunanje telefonske kabelske opreme ter razne povezane načine uporabe.
Za ta vlakna veljajo tri vrste zahtev:
• splošne zahteve, kot so opredeljene v standardu IEC 60793-2;
• posebne zahteve, ki so skupne večrodnim vlaknom kategorije A1 iz tega standarda in so navedene v točki 3;
• posebne zahteve, ki veljajo za posamezne vrste vlaken ali posebne načine uporabe in so opredeljene v normativnih dodatkih o skupinski specifikaciji.

General Information

• Status: Withdrawn
• Publication Date: 03-Mar-2016
• Withdrawal Date: 21-Sep-2020
• ICS: 33.180.10 - Fibres and cables
• Technical Committee: MOC - Mobile Communications
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 22-Sep-2020
• Due Date: 15-Oct-2020
• Completion Date: 22-Sep-2020
• Ref Project: EN 60793-2-10:2016 - Optical fibres - Part 2-10: Product specifications - Sectional specification for category A1 multimode fibre

Relations

• Revised: SIST EN 60793-2-10:2011 - Optical fibres - Part 2-10: Product specifications - Sectional specification for category A1 multimode fibres (IEC 60793-2-10:2011)
• Effective Date: 14-Jan-2015
• Replaced By: SIST EN 60793-2-10:2018 - Optical fibres - Part 2-10: Product specifications - Sectional specification for category A1 multimode fibres (IEC 60793-2-10:2017)
• Effective Date: 13-Nov-2017
• Replaces: SIST EN 60793-2-10:2011 - Optical fibres - Part 2-10: Product specifications - Sectional specification for category A1 multimode fibres (IEC 60793-2-10:2011)
• Effective Date: 23-Feb-2016
• Revised: SIST EN 60793-2-10:2018 - Optical fibres - Part 2-10: Product specifications - Sectional specification for category A1 multimode fibres (IEC 60793-2-10:2017)
• Effective Date: 02-Aug-2016

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 60793-2-10:2016
01-maj-2016
1DGRPHãþD
SIST EN 60793-2-10:2011
2SWLþQDYODNQDGHO6SHFLILNDFLMHL]GHOND3RGURþQDVSHFLILNDFLMD]D
YHþURGQDYODNQDNDWHJRULMH$,(&
Optical fibres - Part 2-10: Product specifications - Sectional specification for category A1
multimode fibre (IEC 60793-2-10:2015)
Ta slovenski standard je istoveten z: EN 60793-2-10:2016
ICS:
33.180.10 2SWLþQDYODNQDLQNDEOL Fibres and cables
SIST EN 60793-2-10:2016 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 60793-2-10:2016

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SIST EN 60793-2-10:2016


EUROPEAN STANDARD EN 60793-2-10

NORME EUROPÉENNE

EUROPÄISCHE NORM
February 2016
ICS 33.180.10 Supersedes EN 60793-2-10:2011
English Version
Optical fibres - Part 2-10: Product specifications - Sectional
specification for category A1 multimode fibre
(IEC 60793-2-10:2015)
Fibres optiques - Partie 2-10: Spécifications de produits - Lichtwellenleiter - Teil 2-10: Produktspezifikationen -
Spécification intermédiaire pour les fibres multimodales de Rahmenspezifikation für Mehrmodenfasern der
catégorie A1 Kategorie A1
(IEC 60793-2-10:2015) (IEC 60793-2-10:2015)
This European Standard was approved by CENELEC on 2015-12-24. 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
© 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN 60793-2-10:2016 E

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SIST EN 60793-2-10:2016
EN 60793-2-10:2016
European foreword
The text of document 86A/1631/CDV, future edition 5 of IEC 60793-2-10, prepared by SC 86A "Fibres
and cables" of IEC/TC 86 "Fibre optics" was submitted to the IEC-CENELEC parallel vote and
approved by CENELEC as EN 60793-2-10:2016.
The following dates are fixed:
(dop) 2016-09-24
• latest date by which the document has to be implemented at
national level by publication of an identical national
standard or by endorsement
(dow) 2018-12-24
• latest date by which the national standards conflicting with
the document have to be withdrawn

This document supersedes EN 60793-2-10:2011.
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 60793-2-10:2015 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 61280-1-4 NOTE Harmonized as EN 61280-1-4.
IEC 61280-1-3 NOTE Harmonized as EN 61280-1-3.
IEC 60793-1-1 NOTE Harmonized as EN 60793-1-1.
IEC 60794-1-1 NOTE Harmonized as EN 60794-1-1.
2

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SIST EN 60793-2-10:2016
EN 60793-2-10:2016
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 Year Title EN/HD Year
IEC 60793-1 series Optical fibres - EN 60793-1 series
Part 1: Measurement methods and test
procedures
IEC 60793-1-20 -  Optical fibres - EN 60793-1-20 -
Part 1-20: Measurement methods and
test procedures - Fibre geometry
IEC 60793-1-21 -  Optical fibres - EN 60793-1-21 -
Part 1-21: Measurement methods and
test procedures - Coating geometry
IEC 60793-1-22 -  Optical fibres - EN 60793-1-22 -
Part 1-22: Measurement methods and
test procedures - Length measurement
IEC 60793-1-30 -  Optical fibres - EN 60793-1-30 -
Part 1-30: Measurement methods and
test procedures - Fibre proof test
IEC 60793-1-31 -  Optical fibres - EN 60793-1-31 -
Part 1-31: Measurement methods and
test procedures - Tensile strength
IEC 60793-1-32 -  Optical fibres - EN 60793-1-32 -
Part 1-32: Measurement methods and
test procedures - Coating strippability
IEC 60793-1-33 -  Optical fibres - EN 60793-1-33 -
Part 1-33: Measurement methods and
test procedures - Stress corrosion
susceptibility
IEC 60793-1-34 -  Optical fibres - EN 60793-1-34 -
Part 1-34: Measurement methods and
test procedures - Fibre curl
IEC 60793-1-40 -  Optical fibres - EN 60793-1-40 -
Part 1-40: Measurement methods and
test procedures - Attenuation
3

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SIST EN 60793-2-10:2016
EN 60793-2-10:2016
Publication Year Title EN/HD Year
IEC 60793-1-41 -  Optical fibres - EN 60793-1-41 -
Part 1-41: Measurement methods and
test procedures - Bandwidth
IEC 60793-1-42 -  Optical fibres - EN 60793-1-42 -
Part 1-42: Measurement methods and
test procedures - Chromatic dispersion
IEC 60793-1-43 -  Optical fibres - EN 60793-1-43 -
Part 1-43: Measurement methods and
test procedures - Numerical aperture
measurement
IEC 60793-1-46 -  Optical fibres - EN 60793-1-46 -
Part 1-46: Measurement methods and
test procedures - Monitoring of changes
in optical transmittance
IEC 60793-1-47 -  Optical fibres - EN 60793-1-47 -
Part 1-47: Measurement methods and
test procedures - Macrobending loss
IEC 60793-1-49 -  Optical fibres - EN 60793-1-49 -
Part 1-49: Measurement methods and
test procedures - Differential mode delay
IEC 60793-1-50 -  Optical fibres - EN 60793-1-50 -
Part 1-50: Measurement methods and
test procedures - Damp heat (steady
state) tests
IEC 60793-1-51 -  Optical fibres - EN 60793-1-51 -
Part 1-51: Measurement methods and
test procedures - Dry heat (steady state)
tests
IEC 60793-1-52 -  Optical fibres - EN 60793-1-52 -
Part 1-52: Measurement methods and
test procedures - Change of
temperature tests
IEC 60793-1-53 -  Optical fibres - EN 60793-1-53 -
Part 1-53: Measurement methods and
test procedures - Water immersion tests
IEC 60793-2 2011 Optical fibres - EN 60793-2 2012
Part 2: Product specifications - General
IEC 61280-4-1 -  Fibre optic communication subsystem EN 61280-4-1 -
test procedures -
Part 4-1: Installed cable plant -
Multimode attenuation measurement
IEC/TR 61931 -  Fibre optic - Terminology - -

4

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SIST EN 60793-2-10:2016




IEC 60793-2-10

®


Edition 5.0 2015-11




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE
colour

inside










Optical fibres –

Part 2-10: Product specifications – Sectional specification for category A1

multimode fibres




Fibres optiques –

Partie 2-10: Spécifications de produits – Spécification intermédiaire pour les


fibres multimodales de catégorie A1













INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE


INTERNATIONALE




ICS 33.180.10 ISBN 978-2-8322-3006-0



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

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SIST EN 60793-2-10:2016
– 2 – IEC 60793-2-10:2015 © IEC 2015
CONTENTS
FOREWORD . 5
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and abbreviations . 9
3.1 Terms and definitions . 9
3.2 Abbreviations . 9
4 Specifications . 9
4.1 Dimensional requirements . 9
4.2 Mechanical requirements . 10
4.3 Transmission requirements . 11
4.4 Environmental requirements . 13
4.4.1 General . 13
4.4.2 Mechanical environmental requirements (common to all fibres in
category A1) . 14
4.4.3 Transmission environmental requirements . 15
Annex A (normative) Family specifications for A1a multimode fibres . 16
A.1 General . 16
A.2 Dimensional requirements . 16
A.3 Mechanical requirements . 17
A.4 Transmission requirements . 17
A.5 Environmental requirements . 18
Annex B (normative) Family specifications for A1b multimode fibres . 19
General . 19
B.1
B.2 Dimensional requirements . 19
B.3 Mechanical requirements . 19
B.4 Transmission requirements . 19
B.5 Environmental requirements . 20
Annex C (normative) Family specifications for A1d multimode fibres . 21
C.1 General . 21
C.2 Dimensional requirements . 21
C.3 Mechanical requirements . 21
C.4 Transmission requirements . 21
C.5 Environmental requirements . 22
Annex D (normative) Fibre differential mode delay (DMD) and calculated effective
modal bandwidth (EMBc) requirements . 23
D.1 A1a.2 fibre DMD requirements . 23
D.1.1 General . 23
D.1.2 DMD templates . 23
D.1.3 DMD interval masks . 24
D.2 A1a.2 fibre EMB requirements . 25
c
D.2.1 General . 25
D.2.2 Calculated effective bandwidth . 25
D.3 A1a.3 DMD requirements . 27
D.3.1 General . 27
D.3.2 DMD templates . 27
D.3.3 DMD interval masks . 28

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SIST EN 60793-2-10:2016
IEC 60793-2-10:2015 © IEC 2015 – 3 –
D.4 A1a.3 fibre EMB requirements . 28
c
D.4.1 General . 28
D.4.2 Calculated effective bandwidth . 28
Annex E (informative) Modal bandwidth considerations and transmitter requirements . 29
E.1 Background. 29
E.2 Transmitter encircled flux (EF) and centre wavelength requirements . 29
E.2.1 Encircled flux . 29
E.2.2 Centre wavelength . 29
E.3 EMB . 30
Annex F (informative) Bandwidth nomenclature explanation . 31
Annex G (informative) Preliminary indications for items needing further study . 32
G.1 Effective modal bandwidth (EMB) at 1 300 nm . 32
G.2 Scaling of EMB with DMD . 32
Annex H (informative) Applications supported by A1 fibres . 34
H.1 Internationally standardised applications . 34
H.2 Used commercial bandwidth specifications . 34
H.3 Cross reference of fibre types in this standard and ISO/IEC 11801 . 35
H.4 Reference documents . 35
Annex I (informative) 1-Gigabit, 10-Gigabit, 40-Gigabit and 100-Gigabit Ethernet
applications . 36
Bibliography . 40

Figure 1 – Relation between bandwidths at 850 nm and 1 300 nm . 13
Figure D.1 – DMD template requirements . 24

Table 1 – Dimensional attributes and measurement methods . 10
Table 2 – Dimensional requirements common to category A1 fibres . 10
Table 3 – Additional dimensional attributes required in family specifications . 10
Table 4 – Mechanical attributes and measurement methods . 11
Table 5 – Mechanical requirements common to category A1 fibres . 11
Table 6 – Transmission attributes and measurement methods . 12
Table 7 – Additional transmission attributes required in family specifications . 12
Table 8 – Environmental exposure tests . 13
Table 9 – Attributes measured for environmental tests . 14
Table 10 – Strip force for environmental tests . 14
Table 11 – Tensile strength for environmental tests . 14
Table 12 – Stress corrosion susceptibility for environmental tests . 15
Table 13 – Change in attenuation for environmental tests . 15
Table A.1 – Dimensional requirements specific to A1a fibres . 16
Table A.2 – Mechanical requirements specific to A1a fibres . 17
Table A.3 – Transmission requirements specific to A1a fibres . 18
Table B.1 – Dimensional requirements specific to A1b fibres . 19
Table B.2 – Mechanical requirements specific to A1b fibres . 19
Table B.3 – Transmission requirements specific to A1b fibres . 20
Table C.1 – Dimensional requirements specific to A1d fibres . 21

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SIST EN 60793-2-10:2016
– 4 – IEC 60793-2-10:2015 © IEC 2015
Table C.2 – Mechanical requirements specific to A1d fibres . 21
Table C.3 – Transmission requirements specific to A1d fibres. 22
Table D.1 – DMD templates for A1a.2 fibres . 23
Table D.2 – DMD interval masks for A1a.2 fibres . 25
Table D.3 – DMD weightings (1 of 2) . 26
Table D.4 – DMD templates for A1a.3 fibres . 28
Table D.5 – DMD interval masks for A1a.3 fibres . 28
Table F.1 – Bandwidth nomenclature explanation . 31
Table H.1 – Some internationally standardised applications supported by A1a and A1b
fibres . 34
Table H.2 – Typically used commercial bandwidth specifications for A1a and A1b
graded-index multimode fibres . 35
Table H.3 – Cross reference between this standard and ISO/IEC 11801 . 35
Table I.1 – Summary of 1 Gb/s, 10 Gb/s, 40 Gb/s and 100 Gb/s Ethernet requirements
and capabilities (1 of 3) . 37

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SIST EN 60793-2-10:2016
IEC 60793-2-10:2015 © IEC 2015 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

OPTICAL FIBRES –

Part 2-10: Product specifications –
Sectional specification for category A1 multimode fibres

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.
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members of its technical committees and IEC National Committees for any personal injury, property damage or
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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.
International Standard IEC 60793-2-10 has been prepared by subcommittee 86A: Fibres and
cables, of IEC technical committee 86: Fibre optics.
This fifth edition cancels and replaces the fourth edition published in 2011. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) addition of enhanced macrobending multimode fibres A1a.1b, A1a.2b and A1a.3b;
b) inclusion of the specified test wavelength and specimen length for core diameter (CD),
numerical aperture (NA), differential mode delay (DMD) and threshold values for CD and
NA;
c) addition of a specimen length for 850 nm bandwidth of A1a and A1b fibres.

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SIST EN 60793-2-10:2016
– 6 – IEC 60793-2-10:2015 © IEC 2015
The text of this standard is based on the following documents:
CDV Report on voting
86A/1631/CDV 86A/1664/RVC

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.
A list of all parts in the IEC 60793 series, published under the general title Optical fibres, 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 website 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.

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.

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SIST EN 60793-2-10:2016
IEC 60793-2-10:2015 © IEC 2015 – 7 –
OPTICAL FIBRES –

Part 2-10: Product specifications –
Sectional specification for category A1 multimode fibres



1 Scope
This part of IEC 60793 is applicable to optical fibre types A1a, A1b, and A1d. These fibres are
used or can be incorporated in information transmission equipment and optical fibre cables.
Type A1a applies to 50/125 µm graded index fibre. Three bandwidth grades are defined as
A1a.1, A1a.2 and A1a.3. Each of these bandwidth grades is defined for two levels of
macrobend loss performance that are distinguished by “a” or “b” suffix. Those with suffix “a”
are specified to meet traditional macrobend loss performance levels. Those with suffix “b” are
specified to meet enhanced macrobend loss (i.e. lower loss) performance levels.
Type A1b applies to 62,5/125 µm graded index fibre and A1d applies to 100/140 µm graded
index fibre.
Other applications include, but are not restricted to, the following: short reach, high bit-rate
systems in telephony, distribution and local networks carrying data, voice and/or video
services; on-premises intra-building and inter-building fibre installations including data
centres, local area networks (LANs), storage area networks (SANs), private branch
exchanges (PBXs), video, various multiplexing uses, outside telephone cable plant use, and
miscellaneous related uses.
Three types of requirements apply to these fibres:
• general requirements, as defined in IEC 60793-2;
• specific requirements common to the category A1 multimode fibres covered in this
standard and which are given in Clause 3;
• particular requirements applicable to individual fibre types or specific applications, which
are defined in the normative family specification annexes.
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 60793-1 (all parts), Optical fibres – Part 1: Measurement methods and test procedures
IEC 60793-1-20, Optical fibres – Part 1-20: Measurement methods and test procedures –
Fibre geometry
IEC 60793-1-21, Optical fibres – Part 1-21: Measurement methods and test procedures –
Coating geometry
IEC 60793-1-22, Optical fibres – Part 1-22: Measurement methods and test procedures –
Length measurement

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SIST EN 60793-2-10:2016
– 8 – IEC 60793-2-10:2015 © IEC 2015
IEC 60793-1-30, Optical fibres – Part 1-30: Measurement methods and test procedures –
Fibre proof test
IEC 60793-1-31, Optical fibres – Part 1-31: Measureme
...