IEC 60793-2-60:2025
(Main)Optical fibres - Part 2-60: Product specifications - Sectional specification for class C single-mode interconnection fibres
Optical fibres - Part 2-60: Product specifications - Sectional specification for class C single-mode interconnection fibres
IEC 60793-2-60:2025 is applicable to optical fibre types C1, C2, C3, and C4, as described in Table 1. These fibres are used for the interconnections within or between optical components systems and are optimized to support dense optical connectivity. While the fibres can be overcoated or buffered for the purpose of making protected pigtails, they can be used without overcoating. They can, however, be colour coded. This second edition cancels and replaces the first edition published in 2008. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) replacement of "intraconnection" with "interconnection" and addition of the definition of "interconnection fibres";
b) modification of the nominal MFD limit of C1 fibres;
c) addition of "Primary coating diameter-coloured" limits for class C fibres and change of "Primary coating diameter-uncoloured" limits for class C_80 fibres;
d) change of coating strip force limits for class C1, class C2, and class C3 fibres;
e) replacement of "Fibre cut-off wavelength" with "Cable cut-off wavelength" and revision of "Note b" in Table 6;
f) replacement of "Fibre cut-off wavelength" with "Cable cut-off wavelength" and deletion of the "Note" in Table 8;
g) addition of 200 μm coating diameter requirements for C1_125 fibres and change of coating diameters limits for C1_80 fibres in Table A.1;
h) addition of 200 µm coating diameter requirements for C1_125 fibres and change of coating strip force limits in Table A.2 and in Table A.5;
i) replacement of "Fibre cut-off wavelength" with "Cable cut-off wavelength", modification of the "Cable cut-off wavelength" limit and addition of a new "Note" in Table A.3;
j) addition of a transmission requirements at 1 625 nm and deletion of 1 310 nm for C1 fibres in Table A.4;
k) modification of "Fibre cut-off wavelength" limits of C3 fibres in Table C.3;
l) replacement of "Fibre cut-off wavelength" with "Cable cut-off wavelength" for C4 fibres in Table D.3.
Fibres optiques - Partie 2-60: Spécifications de produits - Spécification intermédiaire pour les fibres d’interconnexion unimodales de classe C
L'IEC 60793-2-60:2025 s’applique aux types de fibres optiques C1, C2, C3 et C4, tels que décrits dans le Tableau 1. Ces fibres sont utilisées pour les interconnexions au sein de composants ou systèmes optiques, ou entre de tels composants ou systèmes, et sont optimisées pour assurer une connectivité optique supposant une densité élevée. Lorsque les fibres peuvent être équipées d’un revêtement supplémentaire ou d’un revêtement protecteur dans le but de réaliser des fibres amorces protégées, elles peuvent être utilisées sans revêtement supplémentaire. Toutefois, elles peuvent disposer d’un code couleur. Cette deuxième édition annule et remplace la première édition parue en 2008. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente:
a) remplacement de "d’intraconnexion" par "d’interconnexion", et ajout de la définition du concept "fibres d’interconnexion";
b) modification de la limite des diamètres de champ de mode (MFD) nominaux pour les fibres de type C1;
c) ajout de limites pour la propriété "Diamètre du revêtement primaire - coloré" des fibres de classe C, et modification des limites de la propriété "Diamètre du revêtement primaire - incolore" pour les fibres C_80;
d) modification de la force de dénudage pour les fibres de classe C1, de classe C2 et de classe C3;
e) dans le Tableau 6, remplacement de la propriété "Longueur d’onde de coupure d’une fibre" par "Longueur d’onde de coupure en câble" et révision de la Note b;
f) dans le Tableau 8, remplacement de la propriété "Longueur d’onde de coupure d’une fibre" par "Longueur d’onde de coupure en câble" et suppression de la note;
g) dans le Tableau A.1, ajout d’une exigence de diamètre de revêtement de 200 µm pour les fibres C1_125 et modification des limites de diamètre de revêtement pour les fibres C1_80;
h) dans le Tableau A.2 et le Tableau A.5, ajout d’une exigence de diamètre de revêtement de 200 µm pour les fibres C1_125 et modification des limites de force de dénudage;
i) dans le Tableau A.3, remplacement de la propriété "Longueur d’onde de coupure d’une fibre" par "Longueur d’onde de coupure en câble", modification de la limite de la propriété "Longueur d’onde de coupure en câble" et ajout d’une nouvelle note;
j) dans le Tableau A.4, ajout d’exigences de transmission à 1 625 nm et suppression de la longueur d’onde 1 310 nm pour les fibres de type C1;
k) dans le Tableau C.3, modification des limites de la propriété "Longueur d’onde de coupure d’une fibre" pour les fibres de type C3;
l) dans le Tableau D.3, remplacement de la propriété "Longueur d’onde de coupure d’une fibre" par "Longueur d’onde de coupure en câble" pour les fibres de type C4.
General Information
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Standards Content (Sample)
IEC 60793-2-60 ®
Edition 2.0 2025-09
INTERNATIONAL
STANDARD
REDLINE VERSION
Optical fibres -
Part 2-60: Product specifications - Sectional specification for class C single-
mode interconnection fibres
ICS 33.180.10 ISBN 978-2-8327-0756-2
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CONTENTS
FOREWORD . 3
1 Scope . 1
2 Normative references . 6
3 Terms, definitions, symbols, and abbreviated terms . 7
3.1 Terms and definitions. 7
3.2 Symbols and abbreviated terms . 7
4 Specifications . 7
4.1 General . 7
4.2 Dimensional requirements . 8
4.3 Mechanical requirements . 9
4.4 Transmission requirements . 9
4.5 Environmental requirements . 10
4.5.1 General . 10
4.5.2 Transmission requirements . 11
4.5.3 Mechanical requirements . 11
Annex A (normative) Family specification for C1 single-mode fibres. 13
A.1 IntroductionGeneral . 13
A.2 Dimensional requirements . 13
A.3 Mechanical requirements . 13
A.4 Transmission requirements . 14
A.5 Environmental requirements . 14
A.5.1 General . 14
A.5.2 Transmission requirements . 14
A.5.3 Mechanical requirements – Coating strip force . 15
Annex B (normative) Family specification for C2 single-mode fibres. 16
B.1 IntroductionGeneral . 16
B.2 Dimensional requirements . 16
B.3 Mechanical requirements . 16
B.4 Transmission requirements . 17
B.5 Environmental requirements . 17
B.5.1 General . 17
B.5.2 Transmission requirements . 17
B.5.3 Mechanical requirements – Coating strip force . 17
Annex C (normative) Family specification for C3 single-mode fibres . 18
C.1 IntroductionGeneral . 18
C.2 Dimensional requirements . 18
C.3 Mechanical requirements . 18
C.4 Transmission requirements . 19
C.5 Environmental requirements . 19
C.5.1 General . 19
C.5.2 Transmission requirements . 19
C.5.3 Mechanical requirements – Coating strip force . 19
Annex D (normative) Family specification for C4 single-mode fibres . 20
D.1 IntroductionGeneral . 20
D.2 Dimensional requirements . 20
D.3 Mechanical requirements . 20
D.4 Transmission requirements . 21
D.5 Environmental requirements . 21
D.5.1 General . 21
D.5.2 Transmission requirements . 21
D.5.3 Mechanical requirements – Coating strip force . 21
Bibliography . 22
Table 1 – List of families and main differences . 8
Table 2 – Dimensional attributes and measurement methods . 8
Table 3 – Requirements common to class C fibres . 9
Table 4 – Mechanical attributes and measurement methods . 9
Table 5 – Mechanical requirements common to class C fibres . 9
Table 6 – Transmission attributes and measurement methods . 10
Table 7 – Transmission requirements common to class C fibres . 10
Table 8 – Transmission attributes required in family specifications . 10
Table 9 – Environmental attributes and test methods . 10
Table 10 – Environment-dependent mechanical or transmission attributes and test
methods . 11
Table 11 – Tensile strength requirements common to class C fibres . 11
Table 12 – Stress corrosion susceptibility requirements common to class C fibres . 12
Table A.1 – Dimensional requirements for C1 fibres. 13
Table A.2 – Mechanical requirements for C1 fibres . 14
Table A.3 – Transmission requirements for C1 fibres . 14
Table A.4 – Environment-dependent transmission requirements for C1 fibres . 15
Table A.5 – Environment-dependent mechanical requirements for C1 fibres . 15
Table B.1 – Dimensional requirements for C2 fibres. 16
Table B.2 – Mechanical requirements for C2 fibres . 16
Table B.3 – Transmission requirements for C2 fibres . 17
Table B.4 – Environment-dependent transmission requirements for C2 fibres . 17
Table B.5 – Environment-dependent mechanical requirements for C2 fibres . 17
Table C.1 – Dimensional requirements for C3 fibres . 18
Table C.2 – Mechanical requirements for C3 fibres . 18
Table C.3 – Transmission requirements for C3 fibres . 19
Table C.4 – Environment-dependent transmission requirements for C3 fibres . 19
Table C.5 – Environment-dependent mechanical requirements for C3 fibres . 19
Table D.1 – Dimensional requirements for C4 fibres . 20
Table D.2 – Mechanical requirements for C4 fibres . 20
Table D.3 – Transmission requirements for C4 fibres . 21
Table D.4 – Environment-dependent transmission requirements for C4 fibres . 21
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Optical fibres -
Part 2-60: Product specifications - Sectional specification
for class C single-mode interconnection fibres
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