SIST EN 60793-2-10:2006

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

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 fibre is a 50/125 ìm graded index fibre. Type A1a.1 (which was defined in the previous edition of this standard as type A1a) applies to 50/125 ìm fibre, while A1a.2 applies to 850 nm laser-optimised 50/125 ìm fibre. Type A1b applies to 62,5/125 ìm graded index fibre and A1d applies to 100/140 ìm 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 and on-premises intra-building and inter-building fibre installations, including LANs, 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

Applicables 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. Trois types d'exigences s'appliquent à ces fibres: les exigences générales, qui sont définies dans la EN 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 familles figurant en annexe.

Optična vlakna – 2-10. del: Specifikacije izdelka – Področna specifikacija za večrodna vlakna kategorije A1 (IEC 60793-2-10:2004)

General Information

• Status: Withdrawn
• Publication Date: 30-Sep-2006
• Withdrawal Date: 11-Dec-2007
• ICS: 33.180.10 - Fibres and cables
• Technical Committee: iTEL - Communication cables
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 11-Dec-2007
• Due Date: 03-Jan-2008
• Completion Date: 12-Dec-2007
• Ref Project: EN 60793-2-10:2004 - Optical fibres - Part 2-10: Product specifications - Sectional specification for category A1 multimode fibres

Relations

• Replaced By: SIST EN 60793-2-10:2008 - Optical fibres -- Part 2-10: Product specifications - Sectional specification for category A1 multimode fibres
• Effective Date: 13-May-2010
• Replaced By: SIST EN 60793-2-10:2008 - Optical fibres -- Part 2-10: Product specifications - Sectional specification for category A1 multimode fibres
• Effective Date: 28-Jan-2023
• Revised: SIST EN 60793-2-10:2004 - Optical fibres -- Part 2-10: Product specifications - Sectional specification for category A1 multimode fibres
• Effective Date: 13-May-2010
• Replaces: SIST EN 60793-2-10:2004 - Optical fibres -- Part 2-10: Product specifications - Sectional specification for category A1 multimode fibres
• Effective Date: 29-Jan-2023
• Replaces: SIST EN 60793-2-10:2004 - Optical fibres -- Part 2-10: Product specifications - Sectional specification for category A1 multimode fibres
• Effective Date: 07-Jun-2022

Standards Content (Sample)

SLOVENSKI SIST EN 60793-2-10:2006

STANDARD
oct 2006
Optična vlakna – 2-10. del: Specifikacije izdelka – Področna specifikacija za
večrodna vlakna kategorije A1 (IEC 60793-2-10:2004)
Optical fibres – Part 2-10: Product specifications – Sectional specification for
category A1 multimode fibres (IEC 60793-2-10:2004)
ICS 33.180.10 Referenčna številka
SIST EN 60793-2-10:2006(en)
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

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EUROPEAN STANDARD EN 60793-2-10
NORME EUROPÉENNE
EUROPÄISCHE NORM December 2004

ICS 33.180.10 Supersedes EN 60793-2-10:2002


English version


Optical fibres
Part 2-10: Product specifications -
Sectional specification for category A1 multimode fibres
(IEC 60793-2-10:2004)


Fibres optiques Lichtwellenleiter
Partie 2-10: Spécifications de produits - Teil 2-10: Produktspezifikationen -
Spécification intermédiaire pour les fibres Rahmenspezifikation
multimodales de catégorie A1 für Mehrmodenfasern der Kategorie A1
(CEI 60793-2-10:2004) (IEC 60793-2-10:2004)






This European Standard was approved by CENELEC on 2004-10-01. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden,
Switzerland and United Kingdom.

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

Central Secretariat: rue de Stassart 35, B - 1050 Brussels


© 2004 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 60793-2-10:2004 E

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EN 60793-2-10:2004 - 2 -
Foreword
The text of document 86A/966/FDIS, future edition 2 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 was
approved by CENELEC as EN 60793-2-10 on 2004-10-01.
This European Standard supersedes EN 60793-2-10:2002.
This new edition adds environmental test requirements and A1a.2 (50/125 µm) fibre to support
10 Gb/s applications.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2005-08-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2007-10-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 60793-2-10:2004 was approved by CENELEC as a
European Standard without any modification.
__________

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- 3 - EN 60793-2-10:2004
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application 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.
NOTE Where an international publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
Publication Year Title EN/HD Year
IEC 60793-1-1 2002 Optical fibres EN 60793-1-1 2003
Part 1-1: Measurement methods and test
procedures - General and guidance

IEC 60793-1-20 2001 Part 1-20: Measurement methods and EN 60793-1-20 2002
test procedures - Fibre geometry

IEC 60793-1-21 2001 Part 1-21: Measurement methods and EN 60793-1-21 2002
test procedures - Coating geometry

IEC 60793-1-22 2001 Part 1-22: Measurement methods and EN 60793-1-22 2002
test procedures - Length measurement

IEC 60793-1-30 2001 Part 1-30: Measurement methods and EN 60793-1-30 2002
test procedures - Fibre proof test

IEC 60793-1-31 2001 Part 1-31: Measurement methods and EN 60793-1-31 2002
test procedures - Tensile strength

IEC 60793-1-32 2001 Part 1-32: Measurement methods and EN 60793-1-32 2003
(mod) test procedures - Coating strippability

IEC 60793-1-33 2001 Part 1-33: Measurement methods and EN 60793-1-33 2002
test procedures - Stress corrosion
susceptibility

IEC 60793-1-34 2001 Part 1-34: Measurement methods and EN 60793-1-34 2002
test procedures - Fibre curl

IEC 60793-1-40 2001 Part 1-40: Measurement methods and EN 60793-1-40 2003
(mod) test procedures - Attenuation

1)
IEC 60793-1-41 2001 Part 1-41: Measurement methods and EN 60793-1-41 2002
test procedures – Bandwidth

IEC 60793-1-42 2001 Part 1-42: Measurement methods and EN 60793-1-42 2002
test procedures - Chromatic dispersion

IEC 60793-1-43 2001 Part 1-43: Measurement methods and EN 60793-1-43 2002
test procedures - Numerical aperture


1)
EN 60793-1-41:2002 is superseded by EN 60793-1-41:2003, which is based on IEC 60793-1-41:2003.

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EN 60793-2-10:2004 - 4 -
Publication Year Title EN/HD Year
IEC 60793-1-46 2001 Part 1-46: Measurement methods and EN 60973-1-46 2002
test procedures - Monitoring of changes
in optical transmittance

IEC 60793-1-47 2001 Part 1-47: Measurement methods and EN 60793-1-47 2002
test procedures - Macrobending loss

IEC 60793-1-49 2003 Part 1-49: Measurement methods and EN 60793-1-49 2003
test procedures - Differential mode delay

IEC 60793-1-50 2001 Part 1-50: Measurement methods and EN 60793-1-50 2002
test procedures - Damp heat (steady
state)

IEC 60793-1-51 2001 Part 1-51: Measurement methods and EN 60793-1-51 2002
test procedures - Dry heat

IEC 60793-1-52 2001 Part 1-52: Measurement methods and EN 60793-1-52 2002
test procedures - Change of temperature

IEC 60793-1-53 2001 Part 1-53: Measurement methods and EN 60793-1-53 2002
test procedures - Water immersion

IEC 60793-2 2003 Part 2: Product specifications - General EN 60793-2 2004

2) 3)
IEC 60794-2 - Optical fibre cables EN 60794-2 2003
Part 2: Indoor cables - Sectional
specification

2) 3)
IEC 61280-1-4 - Fibre optic communication subsystem test EN 61280-1-4 2003
procedures
Part 1-4: General communication
subsystems - Collection and reduction of
two-dimensional nearfield data for
multimode fibre laser transmitters

IEC/TR 62048 2002 Optical fibres - Reliability - Power law - -
theory




2)
Undated reference.
3)
Valid edition at date of issue.

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NORME CEI
INTERNATIONALE IEC
60793-2-10
INTERNATIONAL
Deuxième édition
STANDARD
Second edition
2004-11
Fibres optiques–
Partie 2-10:
Spécifications de produits –
Spécification intermédiaire pour
les fibres multimodales de catégorie A1
Optical fibres –
Part 2-10:
Product specifications –
Sectional specification for category A1
multimode fibres
© IEC 2004 Droits de reproduction réservés ⎯ Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in any
utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including
électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: [phone] Telefax: [phone] E-mail: [e-mail] Web: www.iec.ch
CODE PRIX
PRICE CODE W
Commission Electrotechnique Internationale
International Electrotechnical Commission
ɆɟɠɞɭɧɚɪɨɞɧɚɹɗɥɟɤɬɪɨɬɟɯɧɢɱɟɫɤɚɹɄɨɦɢɫɫɢɹ
Pour prix, voir catalogue en vigueur
For price, see current catalogue

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60793-2-10 © IEC:2004 – 3 –
CONTENTS
FOREWORD.7
1 Scope.11
2 Normative references .11
3 Specifications .15
3.1 Dimensional requirements .15
3.2 Mechanical requirements.17
3.3 Transmission requirements.17
3.4 Environmental requirements .23
Annex A (normative) Family specifications for A1a multimode fibres .29
Annex B (normative) Family specifications for A1b multimode fibres .33
Annex C (normative) Family specifications for A1d multimode fibres .37
Annex D (normative) Transmitter centre wavelength and encircled flux (EF), fibre
differential mode delay (DMD) and calculated effective modal bandwidth (EMBc)
requirements.41
Annex E (informative) Applications supported by A1 fibres.65
Annex F (informative) 1-Gigabit and 10-Gigabit Ethernet applications .71
Annex G (informative) Preliminary indications for items needing further study.75
Bibliography.79
Figure 1 – Category A1 chromatic dispersion requirement .19
Figure 2 – Relation between bandwidths at 850 nm and 1 300 nm .23
Figure D-1 – DMD requirements.43
Table 1 – Dimensional attributes and measurement methods.15
Table 2 – Requirements common to category A1 fibres.15
Table 3 – Additional attributes required in the family specifications .17
Table 4 – Mechanical attributes and test methods.17
Table 5 – Requirements common to category A1 fibres.17
Table 6 – Transmission attributes and measurement methods .19
Table 7 – Requirements common to category A1 fibres.19
Table 8 – Additional attributes required in family specifications.21
Table 9 – Environmental exposure tests.23
Table 10 – Attributes measured .23
Table 11 – Strip force for environmental tests .25
Table 12 – Tensile strength for environmental tests .25
Table 13 – Stress corrosion susceptibility for environmental tests .25
Table 14 – Change in attenuation for environmental tests .27

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60793-2-10 © IEC:2004 – 5 –
Table A.1 – Dimensional requirements specific to A1a fibres .29
Table A.2 – Mechanical requirements specific to A1a fibres .29
Table A.3 – Transmission requirements specific to A1a fibres.31
Table B.1 – Dimensional requirements specific to A1b fibres .33
Table B.2 – Mechanical requirements specific to A1b fibres .33
Table B.3 – Transmission requirements specific to A1b fibres.35
Table C.1 – Dimensional requirements specific to A1d fibres .37
Table C.2 – Mechanical requirements specific to A1d fibres.37
Table C.3 – Transmission requirements specific to A1d fibres.39
Table D.1 – DMD templates .43
Table D.2 – DMD interval masks.45
Table D.3 – DMD weightings.49
Table E.1 – Some internationally standardised applications supported by A1a
and A1b fibres .65
Table E.2 – Typically used commercial bandwidth specifications for A1a and A1b
graded-index multimode fibres. .67
Table E.3 – Cross reference table of fibre types and bandwidth cells for this standard
and ISO/IEC 11801 .69
Table F.1 – Summary of 1 and 10 Gb/s Ethernet requirements and capabilities .73

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60793-2-10 © IEC:2004 – 7 –
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 provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60793-2-10 has been prepared by subcommittee 86A: Fibres and
cables, of IEC technical committee 86: Fibre optics.
This second edition cancels and replaces the first edition published in 2002, of which it
constitutes a technical revision. It adds to the previous edition environmental test
requirements and A1a.2 (50/125 µm) fibre to support 10 Gb/s applications.

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60793-2-10 © IEC:2004 – 9 –
The text of this standard is based on the following documents:
FDIS Report on voting
86A/966/FDIS 86A/973/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.
IEC 60793-2 consists of the following parts, under the general title Optical fibres – Product
specifications:
Part 2-10: Sectional specification for category A1 multimode fibres
Part 2-20: Sectional specification for category A2 multimode fibres
Part 2-30: Sectional specification for category A3 multimode fibres
Part 2-40: Sectional specification for category A4 multimode fibres
Part 2-50: Sectional specification for class B single-mode fibres
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result 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.

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60793-2-10 © IEC:2004 – 11 –
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 fibre is a 50/125 µm graded index fibre. Type A1a.1 (which was defined in the
previous edition of this standard as type A1a) applies to 50/125 µm fibre, while A1a.2 applies
to 850 nm laser-optimised 50/125 µm fibre. 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 and on-premises intra-building and inter-building fibre installations, including LANs,
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 referenced documents are indispensable for the application 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 60793-1-1:2002, Optical fibres – Part 1-1: Measurement methods and test procedures –
General and guidance
IEC 60793-1-20:2001, Optical fibres – Part 1-20: Measurement methods and test procedures –
Fibre geometry
IEC 60793-1-21:2001, Optical fibres – Part 1-21: Measurement methods and test procedures –
Coating geometry
IEC 60793-1-22:2001, Optical fibres – Part 1-22: Measurement methods and test procedures –
Length measurement

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60793-2-10 © IEC:2004 – 13 –
IEC 60793-1-30:2001, Optical fibres – Part 1-30: Measurement methods and test procedures –
Fibre proof test
IEC 60793-1-31:2001, Optical fibres – Part 1-31: Measurement methods and test procedures –
Tensile strength
IEC 60793-1-32:2001, Optical fibres – Part 1-32: Measurement methods and test procedures –
Coating strippability
IEC 60793-1-33:2001, Optical fibres – Part 1-33: Measurement methods and test procedures –
Stress corrosion susceptibility
IEC 60793-1-34:2001, Optical fibres – Part 1-34: Measurement methods and test procedures –
Fibre curl
IEC 60793-1-40:2001, Optical fibres – Part 1-40: Measurement methods and test procedures –
Attenuation
IEC 60793-1-41:2001, Optical fibres – Part 1-41: Measurement methods and test procedures –
Bandwidth
IEC 60793-1-42:2001, Optical fibres – Part 1-42: Measurement methods and test procedures –
Chromatic dispersion
IEC 60793-1-43:2001, Optical fibres – Part 1-43: Measurement methods and test procedures –
Numerical aperture
IEC 60793-1-46:2001, Optical fibres – Part 1-46: Measurement methods and test procedures –
Monitoring of changes in optical transmittance
IEC 60793-1-47:2001, Optical fibres – Part 1-47: Measurement methods and test procedures –
Macrobending loss
IEC 60793-1-49: 2003, Optical fibres – Part 1-49: Measurement methods and test procedures
– Differential mode delay
IEC 60793-1-50:2001, Optical fibres – Part 1-50: Measurement methods and test procedures –
Damp heat (steady state)
IEC 60793-1-51:2001, Optical fibres – Part 1-51: Measurement methods and test procedures –
Dry heat
IEC 60793-1-52:2001, Optical fibres – Part 1-52: Measurement methods and test procedures –
Change of temperature
IEC 60793-1-53:2001, Optical fibres – Part 1-53: Measurement methods and test procedures –
Water immersion
IEC 60793-2:2003, Optical fibres − Part 2: Product specifications - General
IEC 60794-2, Optical fibre cables – Part 2: Indoor cables – Sectional specification
IEC 61280-1-4 Fibre optic communication subsystem test procedures – General
communication subsystems – Collection and reduction of two-dimensional nearfield data for
multimode fibre laser transmitters
IEC 62048:2002, Optical fibres – Reliability – Power law theory

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60793-2-10 © IEC:2004 – 15 –
3 Specifications
The fibre shall consist of a glass core with a graded index profile and a glass cladding in
accordance with 5.1 in IEC 60793-2.
The term “glass” usually refers to material consisting of non-metallic oxides.
3.1 Dimensional requirements
Dimensional attributes and measurement methods are given in Table 1.
Requirements common to all fibres in category A1 are indicated in Table 2.
Table 3 lists additional attributes that shall be specified by each family specification.
Table 1 – Dimensional attributes and measurement methods
Attributes Measurement
methods
Cladding diameter IEC 60793-1-20
Core diameter IEC 60793-1-20
Cladding non-circularity IEC 60793-1-20
Core non-circularity IEC 60793-1-20
Core-cladding concentricity error IEC 60793-1-20
Primary coating diameter IEC 60793-1-21
Primary coating non-circularity IEC 60793-1-21
Primary coating-cladding concentricity error IEC 60793-1-21
Fibre length IEC 60793-1-22
Table 2 – Requirements common to category A1 fibres
Attributes Unit Limits
Core non-circularity %
≤6
b
Primary coating diameter – uncoloured µm 245 ± 10
b
Primary coating diameter – coloured
µm 250 ± 15
Primary coating-cladding concentricity error
µm ≤12,5
a
Fibre length km
a
Length requirements vary and should be agreed between supplier and customer.
b
The above limits on primary coating diameter are most commonly used in
telecommunications cables. There are other applications, which use other primary
coating diameters, several of which are listed below.
Alternative nominal primary coating diameters and tolerance (µm):
400 ± 40
500 ± 50
700 ± 100
900 ± 100

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60793-2-10 © IEC:2004 – 17 –
Table 3 – Additional attributes required in the family specifications
Attributes
Cladding diameter
Cladding non-circularity
Core diameter
Core-cladding concentricity error
3.2 Mechanical requirements
Mechanical attributes and test methods are given in Table 4.
Requirements common to all fibres in category A1 are in Table 5.
Table 4 – Mechanical attributes and test methods
Attributes Test methods
Proof test IEC 60793-1-30
Tensile strength IEC 60793-1-31
Primary coating strippability IEC 60793-1-32
Stress corrosion susceptibility IEC 60793-1-33
Fibre curl IEC 60793-1-34
Table 5 – Requirements common to category A1 fibres
Attributes Unit Limits
a
Proof stress level GPa
≥ 0,69
b
Strip force (average) N 1,0 ≤ F ≤ 5,0
ave.strip
b
Strip force (peak) N
1,0 ≤ F ≤ 8,9
peak.strip
a
The proof test value of 0,69 GPa equals about 1 % strain or about 8,8 N force, for
A1a and A1b fibres. For the relation between these different units, see 4.4 of
IEC 62048.
b
Either average strip force or peak strip force, which are defined in the test
procedure, may be specified by agreement between supplier and customer.
3.3 Transmission requirements
Transmission attributes and measurement methods are given in Table 6.
Requirements common to all fibres in category A1 are indicated in Table 7.
Table 8 lists additional attributes that shall be specified by each family specification.

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60793-2-10 © IEC:2004 – 19 –
Table 6 – Transmission attributes and measurement methods
Attributes Measurement methods
a
Attenuation coefficient IEC 60793-1-40
a
Modal bandwidth IEC 60793-1-41
Numerical aperture IEC 60793-1-43
Chromatic dispersion IEC 60793-1-42
Change of optical transmission IEC 60793-1-46
Macrobending loss IEC 60793-1-47
Differential mode delay IEC 60793-1-49
a
When measuring attenuation and modal bandwidth, the appropriate launching
conditions should be applied. These may differ from those prescribed in the test
methods to which reference is made.
Table 7 – Requirements common to category A1 fibres
Attributes Unit Limits
nm
Zero dispersion wavelength, λ 1 295 ≤ λ ≤ 1 365
0 0
Zero dispersion slope S 2
0 ps/nm km
− from 1 295 nm ≤ λ ≤ 1 300 nm D ≤ 0,105 + 0,001 (λ – 1 295)
0 0
− from 1 300 nm ≤ λ ≤ 1 348 nm D ≤ 0,11
0
− from 1 348 nm ≤ λ ≤ 1 365 nm D ≤ 0,001 (1 458 – λ )
0 0
NOTE See Figure 1 for a schematic representation of the requirements of this table.
Specification compliance of chromatic dispersion can be assured by compliance to the
numerical aperture specification.
0,12
0,11
0,10
0,09
0,08
0,07
1 280 1 300 1 320 1 340 1 360 1 380
Zero-dispersion wavelength (nm)
IEC 073/02
Figure 1 – Category A1 chromatic dispersion requirement
2
Maximum zero-dispersion slope (ps/(nm ⋅ km))

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60793-2-10 © IEC:2004 – 21 –
Table 8 – Additional attributes required
in family specifications
Attributes
Attenuation coefficient
Modal bandwidth
Numerical aperture
Macrobending loss
For attenuation coefficient and modal bandwidth, the family specification contains ranges of
specifiable values instead of fixed limits. The actual values of the maximum attenuation
coefficient and minimum modal bandwidth, at both 850 nm and 1 300 nm (or just at one of
these wavelengths) are to be agreed betwee
...