IEC 60793-2-20:2007

Optical fibres - Part 2-20: Product specifications - Sectional specification for category A2 multimode fibres

Covers specific requirements of optical fibres type A2a, A2b and A2c. These fibres are used in information transmission equipment and optical fibre cables (typically up to 2 km). For general requirements, see IEC 60793-2. The main changes from the previous edition are: the additionof tensile strength requirement; the removal of water immersion requirement; and the addition of environmental requirements.

Fibres optiques - Partie 2-20: Spécifications de produits - Spécification intermédiaire pour les fibres multimodales de catégorie A2

Décrit des prescriptions spécifiques des fibres optiques de type A2a, A2b et A2c. Ces fibres sont utilisées dans des équipements pour la transmission de l'information et dans des câbles à fibres optiques (généralement jusqu'à 2 km). Pour les prescriptions générales, voir la CEI 60793-2. Les principaux changements par rapport à l'édition précédente sont: l'addition d'exigences concernant la force de traction; la suppression des exigences concernant l'immersion dans l'eau; l'addition d'exigences environnementales.

General Information

• Status: Published
• Publication Date: 29-Oct-2007
• ICS: 33.180.10 - Fibres and cables
• Technical Committee: SC 86A - Fibres and cables
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 19-Nov-2015

Relations

• Revised: IEC 60793-2-20:2015 - Optical fibres - Part 2-20: Product specifications - Sectional specification for category A2 multimode fibres
• Effective Date: 05-Sep-2023
• Revises: IEC 60793-2-20:2001 - Optical fibres - Part 2-20: Product specifications - Sectional specification for category A2 multimode fibres
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 60793-2-20
Edition 2.0 2007-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Optical fibres –
Part 2-20: Product specifications – Sectional specification for category A2
multimode fibres
Fibres optiques –
Partie 2-20: Spécifications de produits – Spécification intermédiaire pour les
fibres multimodales de catégorie A2

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IEC 60793-2-20
Edition 2.0 2007-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Optical fibres –
Part 2-20: Product specifications – Sectional specification for category A2
multimode fibres
Fibres optiques –
Partie 2-20: Spécifications de produits – Spécification intermédiaire pour les
fibres multimodales de catégorie A2

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
N
CODE PRIX
ICS 33.180.10 ISBN 2-8318-9333-X

– 2 – 60793-2-20 © IEC:2007
CONTENTS
FOREWORD.0H3

1 Scope.1H5
2 Normative references .2H5
3 Specifications .3H6
3.1 General .4H6
3.2 Dimensional requirements .5H6
3.3 Mechanical requirements.6H7
3.4 Transmission requirements .7H7
3.5 Environmental requirements .8H8

Annex A (normative) Family specifications for A2a multimode fibres .9H9
Annex B (normative) Family specifications for A2b multimode fibres .10H11
Annex C (normative) Family specifications for A2c multimode fibres .11H13

Bibliography.12H15

Table 1 – Relevant dimensional attributes and measurement methods.13H6
Table 2 – Requirements common to category A2 fibres.14H7
Table 3 – Additional attributes required in the family specifications.15H7
Table 4 – Relevant mechanical attributes and test methods .16H7
Table 5 – Requirements common to category A2 fibres.17H7
Table 6 – Relevant transmission attributes and measurement methods.18H8
Table 7 – Requirements common to fibres of category A2.19H8
Table 8 – Relevant environmental attributes and test methods.20H8
Table A.1 –Dimensional requirements specific to A2a fibres .21H9
Table A.2 – Mechanical requirements specific to A2a fibres.22H9
Table A.3 – Transmission requirements specific to A2a fibres.23H9
Table A.4.1 – Environmental exposure tests .24H10
Table A.4.2 – Attributes measured .25H10
Table B.1 – Dimensional requirements specific to A2b fibres .26H11
Table B.2 – Mechanical requirements specific to A2b fibres.27H11
Table B.3 – Transmission requirements specific to A2b fibres.28H11
Table B.4.1 – Environmental exposure tests .29H12
Table B.4.2 – Attributes measured .30H12
Table C.1 – Dimensional requirements specific to A2c fibres .31H13
Table C.2 – Mechanical requirements specific to A2c fibres.32H13
Table C.3 – Transmission requirements specific to A2c fibres.33H13
Table C.4.1 – Environmental exposure tests .34H14
Table C.4.2 – Attributes measured.35H14

60793-2-20 © IEC:2007 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
OPTICAL FIBRES −
Part 2-20: Product specifications –
Sectional specification for category A2 multimode fibres

FOREWORD
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patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60793-2-20 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. It constitutes a
technical revision.
The main changes from the previous edition are:
– the addition of tensile strength requirement;
– the removal of water immersion requirement;
– the addition of environmental requirements.

– 4 – 60793-2-20 © IEC:2007
The text of this standard is based on the following documents:
CDV Result of voting
86A/1129/CDV 86A/1151/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 of 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 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.
60793-2-20 © IEC:2007 – 5 –
OPTICAL FIBRES −
Part 2-20: Product specifications –
Sectional specification for category A2 multimode fibres

1 Scope
This part of IEC 60793-2 is applicable to optical fibres type A2a, A2b, and A2c. These fibres
are used or can be incorporated in information transmission equipment and optical fibre
cables (ty
...