SIST EN IEC 60793-2-60:2026
(Main)Optical fibres - Part 2-60: Product specifications - Sectional specification for class C single-mode interconnection fibres (IEC 60793-2-60:2025)
Optical fibres - Part 2-60: Product specifications - Sectional specification for class C single-mode interconnection fibres (IEC 60793-2-60:2025)
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.
Lichtwellenleiter - Teil 2-60: Produktspezifikationen - Rahmenspezifikation für Einmoden-Verbindungsfasern der Kategorie C (IEC 60793-2-60:2025)
Fibres optiques - Partie 2-60: Spécifications de produits - Spécification intermédiaire pour les fibres d’interconnexion unimodales de classe C (IEC 60793-2-60:2025)
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.
Optična vlakna - 2-60. del: Specifikacije izdelka - Področna specifikacija za enorodovna vlakna razreda C za notranje povezovanje (IEC 60793-2-60:2025)
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2026
Optična vlakna - 2-60. del: Specifikacije izdelka - Področna specifikacija za
enorodovna vlakna razreda C za notranje povezovanje (IEC 60793-2-60:2025)
Optical fibres - Part 2-60: Product specifications - Sectional specification for class C
single-mode interconnection fibres (IEC 60793-2-60:2025)
Lichtwellenleiter - Teil 2-60: Produktspezifikationen - Rahmenspezifikation für Einmoden-
Verbindungsfasern der Kategorie C (IEC 60793-2-60:2025)
Fibres optiques - Partie 2-60: Spécifications de produits - Spécification intermédiaire
pour les fibres d’interconnexion unimodales de classe C (IEC 60793-2-60:2025)
Ta slovenski standard je istoveten z: EN IEC 60793-2-60:2025
ICS:
33.180.10 (Optična) vlakna in kabli Fibres and cables
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 60793-2-60
NORME EUROPÉENNE
EUROPÄISCHE NORM November 2025
ICS 33.180.10 Supersedes EN 60793-2-60:2008
English Version
Optical fibres - Part 2-60: Product specifications - Sectional
specification for class C single-mode interconnection fibres
(IEC 60793-2-60:2025)
Fibres optiques - Partie 2-60: Spécifications de produits - Lichtwellenleiter - Teil 2-60: Produktspezifikationen -
Spécification intermédiaire pour les fibres d'interconnexion Rahmenspezifikation für Einmoden-Verbindungsfasern der
unimodales de classe C Kategorie C
(IEC 60793-2-60:2025) (IEC 60793-2-60:2025)
This European Standard was approved by CENELEC on 2025-11-03. 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60793-2-60:2025 E
European foreword
The text of document 86A/2599/FDIS, future edition 2 of IEC 60793-2-60, 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 IEC 60793-2-60:2025.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2026-11-30
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2028-11-30
document have to be withdrawn
This document supersedes EN 60793-2-60:2008 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 60793-2-60:2025 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 standard indicated:
IEC 60793-1-34 NOTE Approved as EN IEC 60793-1-34
IEC 60793-1-42 NOTE Approved as EN 60793-1-42
IEC 60793-1-53 NOTE Approved as EN 60793-1-53
IEC 60793-1-54 NOTE Approved as EN IEC 60793-1-54
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 1 Where 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.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 60793-1-20 - Optical fibres - Part 1-20: Measurement EN 60793-1-20 -
methods and test procedures - Fibre
geometry
IEC 60793-1-21 - Optical fibres - Part 1-21: Measurement EN 60793-1-21 -
methods and test procedures - Coating
geometry
IEC 60793-1-22 - Optical fibres - Part 1-22: Measurement EN IEC 60793-1-22 -
methods and test procedures - Length
measurement
IEC 60793-1-30 - Optical fibres - Part 1-30: Measurement EN 60793-1-30 -
methods and test procedures - Fibre proof
test
IEC 60793-1-31 - Optical fibres - Part 1-31: Measurement EN IEC 60793-1-31 -
methods and test procedures - Tensile
strength
IEC 60793-1-32 - Optical fibres - Part 1-32: Measurement EN IEC 60793-1-32 -
methods and test procedures - Coating
strippability
IEC 60793-1-33 - Optical fibres - Part 1-33: Measurement EN 60793-1-33 -
methods and test procedures - Stress
corrosion susceptibility
IEC 60793-1-40 - Optical fibres - Part 1-40: Attenuation EN IEC 60793-1-40 -
measurement methods
IEC 60793-1-44 - Optical fibres - Part 1-44: Measurement EN IEC 60793-1-44 -
methods and test procedures - Cut-off
wavelength
IEC 60793-1-45 - Optical fibres - Part 1-45: Measurement EN IEC 60793-1-45 -
methods and test procedures - Mode field
diameter
IEC 60793-1-46 - Optical fibres - Part 1-46: Measurement EN IEC 60793-1-46 -
methods and test procedures - Monitoring
of changes in attenuation
Publication Year Title EN/HD Year
IEC 60793-1-47 - Optical fibres - Part 1-47: Measurement EN IEC 60793-1-47 -
methods and test procedures -
Macrobending loss
IEC 60793-1-50 - Optical fibres - Part 1-50: Measurement EN 60793-1-50 -
methods and test procedures - Damp heat
(steady state) tests
IEC 60793-1-51 - Optical fibres - Part 1-51: Measurement EN 60793-1-51 -
methods and test procedures - Dry heat
(steady state) tests
IEC 60793-1-52 - Optical fibres - Part 1-52: Measurement EN 60793-1-52 -
methods and test procedures - Change of
temperature tests
IEC 60793-2 - Optical fibres - Part 2: Product EN IEC 60793-2 -
specifications - General
IEC 60793-2-60 ®
Edition 2.0 2025-09
INTERNATIONAL
STANDARD
Optical fibres -
Part 2-60: Product specifications - Sectional specification for class C single-
mode interconnection fibres
ICS 33.180.10 ISBN 978-2-8327-0707-4
IEC 60793-2-60:2025-09(en)
IEC 60793-2-60:2025 © IEC 2025
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms, definitions, symbols, and abbreviated terms . 6
3.1 Terms and definitions. 6
3.2 Symbols and abbreviated terms . 6
4 Specifications . 6
4.1 General . 6
4.2 Dimensional requirements . 7
4.3 Mechanical requirements . 8
4.4 Transmission requirements . 8
4.5 Environmental requirements . 9
4.5.1 General . 9
4.5.2 Transmission requirements . 10
4.5.3 Mechanical requirements . 10
Annex A (normative) Family specification for C1 single-mode fibres. 12
A.1 General . 12
A.2 Dimensional requirements . 12
A.3 Mechanical requirements . 12
A.4 Transmission requirements . 13
A.5 Environmental requirements . 13
A.5.1 General . 13
A.5.2 Transmission requirements . 13
A.5.3 Mechanical requirements – Coating strip force . 14
Annex B (normative) Family specification for C2 single-mode fibres. 15
B.1 General . 15
B.2 Dimensional requirements . 15
B.3 Mechanical requirements . 15
B.4 Transmission requirements . 15
B.5 Environmental requirements . 16
B.5.1 General . 16
B.5.2 Transmission requirements . 16
B.5.3 Mechanical requirements – Coating strip force . 16
Annex C (normative) Family specification for C3 single-mode fibres . 17
C.1 General . 17
C.2 Dimensional requirements . 17
C.3 Mechanical requirements . 17
C.4 Transmission requirements . 18
C.5 Environmental requirements . 18
C.5.1 General . 18
C.5.2 Transmission requirements . 18
C.5.3 Mechanical requirements – Coating strip force . 18
Annex D (normative) Family specification for C4 single-mode fibres . 19
D.1 General . 19
D.2 Dimensional requirements . 19
D.3 Mechanical requirements . 19
IEC 60793-2-60:2025 © IEC 2025
D.4 Transmission requirements . 20
D.5 Environmental requirements . 20
D.5.1 General . 20
D.5.2 Transmission requirements . 20
D.5.3 Mechanical requirements – Coating strip force . 20
Bibliography . 21
Table 1 – List of families and main differences . 7
Table 2 – Dimensional attributes and measurement methods . 7
Table 3 –
...
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