IEC 60793-2-40:2015

Optical fibres - Part 2-40: Product specifications - Sectional specification for category A4 multimode fibres

IEC 60793-2-40:2015 is applicable to category A4 optical multimode fibres and the related sub-categories A4a, A4b, A4c, A4d, A4e, A4f, A4g and A4h. These fibres have a plastic core and plastic cladding and may have step-index, multi-step index or graded-index profiles. The fibres are used in information transmission equipment and other applications employing similar light transmitting techniques, and finally in fibre optic cables. Table 1 of this document summarizes some of the salient characteristics and applications of these fibres. This fourth edition cancels and replaces the third edition published in 2009. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- harmonization of terminology within the IEC 60793-2 series;
- added measurement parameters for numerical aperture and fibre geometry. Keywords: category A4 optical multimode fibres, information transmission equipment

Fibres optiques - Partie 2-40: Spécifications de produits - Spécification intermédiaire pour les fibres multimodales de la catégorie A4

L'IEC 60793-2-40:2015 s'applique à la catégorie de fibres optiques multimodales A4 et à ses sous-catégories A4a, A4b, A4c, A4d, A4e, A4f, A4g et A4h. Ces fibres possèdent un coeur et une gaine en plastique et elles peuvent avoir des profils de type en saut d'indice, en sauts multiples d'indice ou en gradient d'indice. Ces fibres sont utilisées dans les équipements destinés à la transmission de l'information et dans d'autres applications employant des techniques similaires de transmission du rayonnement lumineux, et finalement dans des câbles à fibres optiques. Le Tableau 1 résume certaines des caractéristiques et applications principales de ces fibres. Cette quatrième édition annule et remplace la troisième édition parue en 2009. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- une harmonisation de la terminologie au sein de la série IEC 60793-2;
- l'ajout de paramètres de mesure pour l'ouverture numérique et la géométrie des fibres. Mots clés: la catégorie de fibres optiques multimodales A4, la transmission de l'information

General Information

• Status: Published
• Publication Date: 18-Nov-2015
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 33.180.10 - Fibres and cables
• Technical Committee: SC 86A - Fibres and cables
• Drafting Committee: WG 1 - TC 86/SC 86A/WG 1
• Current Stage: DELPUB - Deleted Publication
• Start Date: 21-Dec-2018
• Completion Date: 25-Feb-2021

Relations

• Revised: IEC 60793-2-40:2021 - Optical fibres - Part 2-40: Product specifications - Sectional specification for category A4 multimode fibres
• Effective Date: 05-Sep-2023
• Revises: IEC 60793-2-40:2009 - Optical fibres - Part 2-40: Product specifications - Sectional specification for category A4 multimode fibres
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 60793-2-40 ®
Edition 4.0 2015-11
INTERNATIONAL
STANDARD
colour
inside
Optical fibres –
Part 2-40: Product specifications – Sectional specification for category A4
multimode fibres
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form

or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or

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International Standards for all electrical, electronic and related technologies.

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IEC 60793-2-40 ®
Edition 4.0 2015-11
INTERNATIONAL
STANDARD
colour
inside
Optical fibres –
Part 2-40: Product specifications – Sectional specification for category A4

multimode fibres
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.180.10 ISBN 978-2-8322-3022-0

– 2 – IEC 60793-2-40:2015 © IEC 2015

CONTENTS
FOREWORD . 5

1 Scope . 7

2 Normative references . 8

3 Specifications . 8

3.1 Dimensional requirements . 8

3.2 Mechanical requirements . 9

3.2.1 General . 9

3.2.2 Tensile load test . 10
3.3 Transmission requirements . 11
3.4 Environmental requirements . 12
3.4.1 General . 12
3.4.2 Mechanical environmental requirements . 13
3.4.3 Transmission environmental requirements . 13
Annex A (normative) Family specifications for sub-category A4a multimode fibres . 14
A.1 General . 14
A.2 Dimensional requirements . 14
A.3 Mechanical requirements . 14
A.4 Transmission requirements . 14
A.5 Environmental requirements . 15
Annex B (normative) Family specifications for sub-category A4b multimode fibres . 16
B.1 General . 16
B.2 Dimensional requirements . 16
B.3 Mechanical requirements . 16
B.4 Transmission requirements . 16
B.5 Environmental requirements . 17
Annex C (normative) Family specifications for sub-category A4c multimode fibres . 18
C.1 General . 18
C.2 Dimensional requirements . 18
C.3 Mechanical requirements . 18
C.4 Transmission requirements . 18
C.5 Environmental requirements . 19
Annex D (normative) Family specifications for sub-category A4d multimode fibres . 20

D.1 General . 20
D.2 Dimensional requirements . 20
D.3 Mechanical requirements . 20
D.4 Transmission requirements . 20
D.5 Environmental requirements . 21
Annex E (normative) Family specifications for sub-category A4e multimode fibres . 22
E.1 General . 22
E.2 Dimensional requirements . 22
E.3 Mechanical requirements . 22
E.4 Transmission requirements . 22
E.5 Environmental requirements . 23
Annex F (normative) Family specifications for sub-category A4f multimode fibres . 24
F.1 General . 24

F.2 Dimensional requirements . 24

F.3 Mechanical requirements . 24

F.4 Transmission requirements . 24

F.5 Environmental requirements . 25

Annex G (normative) Family specifications for sub-category A4g multimode fibres . 26

G.1 General . 26

G.2 Dimensional requirements . 26

G.3 Mechanical requirements . 26

G.4 Transmission requirements . 26

G.5 Environmental requirements . 27
Annex H (normative) Family specifications for sub-category A4h multimode fibres . 28
H.1 General . 28
H.2 Dimensional requirements . 28
H.3 Mechanical requirements . 28
H.4 Transmission requirements . 28
H.5 Environmental requirements . 29
Annex I (normative) Mode scramblers for sub-category A4a to A4d fibres . 30
I.1 General . 30
I.2 Specification for mode scramblers . 30
Annex J (informative) Additional transmission requirements for sub-category A4a
multimode fibres for wavelengths below 650 nm . 31
J.1 General . 31
J.2 Transmission requirements . 31
Bibliography . 32

Figure 1 – Tensile load versus elongation for a plastic optical fibre . 10
Figure I.1 – Mode scrambler for category A4 fibre . 30

Table 1 – Characteristics and applications of category A4 fibres . 7
Table 2 – Dimensional attributes and measurement methods . 9
Table 3 – Requirements common to all category A4 fibres . 9
Table 4 – Additional attributes required in A4f through A4h family specifications . 9
Table 5 – Mechanical attributes and test methods . 10

Table 6 – Requirements common to category A4 fibres . 10
Table 7 – Additional attributes required in family specification for sub-category A4f
through A4h fibres . 10
Table 8 – Transmission attributes and measurement methods . 11
Table 9 – Attributes required in family specifications . 12
Table 10 – Environmental exposure tests . 12
Table 11 – Attributes measured . 12
Table 12 – Requirement for tensile strength . 13
Table 13 – Requirement for change in attenuation for A4a through A4e fibre . 13
Table 14 – Requirement for change in attenuation for A4f through A4h fibre . 13
Table A.1 – Dimensional requirements specific to A4a fibres . 14
Table A.2 – Mechanical requirements specific to A4a fibres . 14
Table A.3 – Transmission requirements specific to A4a fibres . 15

– 4 – IEC 60793-2-40:2015 © IEC 2015

Table B.1 – Dimensional requirements specific to A4b fibres . 16

Table B.2 – Mechanical requirements specific to A4b fibres . 16

Table B.3 – Transmission requirements specific to A4b fibres . 17

Table C.1 – Dimensional requirements specific to A4c fibres .
...

IEC 60793-2-40 ®
Edition 4.0 2015-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Optical fibres –
Part 2-40: Product specifications – Sectional specification for category A4
multimode fibres
Fibres optiques –
Partie 2-40: Spécifications de produits – Spécification intermédiaire pour
les fibres multimodales de catégorie A4

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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International Standards for all electrical, electronic and related technologies.

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IEC 60793-2-40 ®
Edition 4.0 2015-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Optical fibres –
Part 2-40: Product specifications – Sectional specification for category A4

multimode fibres
Fibres optiques –
Partie 2-40: Spécifications de produits – Spécification intermédiaire pour

les fibres multimodales de catégorie A4

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.10 ISBN 978-2-8322-3732-8

– 2 – IEC 60793-2-40:2015 © IEC 2015
CONTENTS
FOREWORD . 5
1 Scope . 7
2 Normative references . 8
3 Specifications . 8
3.1 Dimensional requirements . 8
3.2 Mechanical requirements . 9
3.2.1 General . 9
3.2.2 Tensile load test . 10
3.3 Transmission requirements . 11
3.4 Environmental requirements . 11
3.4.1 General . 11
3.4.2 Mechanical environmental requirements . 12
3.4.3 Transmission environmental requirements . 12
Annex A (normative) Family specifications for sub-category A4a multimode fibres . 14
A.1 General . 14
A.2 Dimensional requirements . 14
A.3 Mechanical requirements . 14
A.4 Transmission requirements . 14
A.5 Environmental requirements . 15
Annex B (normative) Family specifications for sub-category A4b multimode fibres . 16
B.1 General . 16
B.2 Dimensional requirements . 16
B.3 Mechanical requirements . 16
B.4 Transmission requirements . 16
B.5 Environmental requirements . 17
Annex C (normative) Family specifications for sub-category A4c multimode fibres . 18
C.1 General . 18
C.2 Dimensional requirements . 18
C.3 Mechanical requirements . 18
C.4 Transmission requirements . 18
C.5 Environmental requirements . 19
Annex D (normative) Family specifications for sub-category A4d multimode fibres . 20
D.1 General . 20
D.2 Dimensional requirements . 20
D.3 Mechanical requirements . 20
D.4 Transmission requirements . 20
D.5 Environmental requirements . 21
Annex E (normative) Family specifications for sub-category A4e multimode fibres . 22
E.1 General . 22
E.2 Dimensional requirements . 22
E.3 Mechanical requirements . 22
E.4 Transmission requirements . 22
E.5 Environmental requirements . 23
Annex F (normative) Family specifications for sub-category A4f multimode fibres . 24
F.1 General . 24
F.2 Dimensional requirements . 24

F.3 Mechanical requirements . 24
F.4 Transmission requirements . 24
F.5 Environmental requirements . 25
Annex G (normative) Family specifications for sub-category A4g multimode fibres . 26
G.1 General . 26
G.2 Dimensional requirements . 26
G.3 Mechanical requirements . 26
G.4 Transmission requirements . 26
G.5 Environmental requirements . 27
Annex H (normative) Family specifications for sub-category A4h multimode fibres . 28
H.1 General . 28
H.2 Dimensional requirements . 28
H.3 Mechanical requirements . 28
H.4 Transmission requirements . 28
H.5 Environmental requirements . 29
Annex I (normative) Mode scramblers for sub-category A4a to A4d fibres . 30
I.1 General . 30
I.2 Specification for mode scramblers . 30
Annex J (informative) Additional transmission requirements for sub-category A4a
multimode fibres for wavelengths below 650 nm . 31
J.1 General . 31
J.2 Transmission requirements .
...