EN 60793-2-60:2008

SLOVENSKI STANDARD
01-julij-2008
2SWLþQDYODNQDGHO6SHFLILNDFLMHL]GHOND3RGURþQDVSHFLILNDFLMD]D
HQRURGQDYODNQDNDWHJRULMH&]DQRWUDQMHSRYH]RYDQMH,(&
Optical fibres - Part 2-60: Product specifications - Sectional specification for category C
single-mode intraconnection fibres (IEC 60793-2-60:2008)
Lichtwellenleiter - Teil 2-60: Produktspezifikationen - Rahmenspezifikation für
Einmodenfasern für interne Verbindungen der Kategorie C (IEC 60793-2-60:2008)
Fibres optiques - Partie 2-60: Spécifications de produit - Spécification intermédiaire des
fibres unimodales pour connexions internes en catégorie C (CEI 60793-2-60:2008)
Ta slovenski standard je istoveten z: EN 60793-2-60:2008
ICS:
33.180.10 2SWLþQDYODNQDLQNDEOL Fibres and cables
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 60793-2-60
NORME EUROPÉENNE
May 2008
EUROPÄISCHE NORM
ICS 33.180.10
English version
Optical fibres -
Part 2-60: Product specifications -
Sectional specification for category C single-mode intraconnection fibres
(IEC 60793-2-60:2008)
Fibres optiques -  Lichtwellenleiter -
Partie 2-60: Spécifications de produit - Teil 2-60: Produktspezifikationen -
Spécification intermédiaire des fibres Rahmenspezifikation für Einmodenfasern
unimodales pour connexions internes für interne Verbindungen der Kategorie C
en catégorie C (IEC 60793-2-60:2008)
(CEI 60793-2-60:2008)
This European Standard was approved by CENELEC on 2008-04-01. 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, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the 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

© 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60793-2-60:2008 E
Foreword
The text of document 86A/1160A/CDV, future edition 1 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 was
approved by CENELEC as EN 60793-2-60 on 2008-04-01.
The following dates were fixed:

– latest date by which the EN has to be implemented

at national level by publication of an identical
(dop) 2009-01-01
national standard or by endorsement

– latest date by which the national standards conflicting
(dow) 2011-04-01
with the EN have to be withdrawn
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 60793-2-60:2008 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 standards indicated:
IEC 60793-1-34 NOTE  Harmonized as EN 60793-1-34:2006 (not modified).
IEC 60793-1-42 NOTE  Harmonized as EN 60793-1-42:2007 (not modified).
IEC 60793-1-53 NOTE  Harmonized as EN 60793-1-53:2002 (not modified).
IEC 60793-1-54 NOTE  Harmonized as EN 60793-1-54:2003 (not modified).
__________
- 3 - EN 60793-2-60:2008
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  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

1) 2)
IEC 60793-1-20 - Optical fibres - EN 60793-1-20 2002
Part 1-20: Measurement methods and test
procedures - Fibre geometry
1) 2)
IEC 60793-1-21 - Optical fibres - EN 60793-1-21 2002
Part 1-21: Measurement methods and test
procedures - Coating geometry
1) 2)
IEC 60793-1-22 - Optical fibres - EN 60793-1-22 2002
Part 1-22: Measurement methods and test
procedures - Length measurement

1) 2)
IEC 60793-1-30 - Optical fibres - EN 60793-1-30 2002
Part 1-30: Measurement methods and test
procedures - Fibre proof test
1) 2)
IEC 60793-1-31 - Optical fibres - EN 60793-1-31 2002
Part 1-31: Measurement methods and test
procedures - Tensile strength
1) 2)
IEC 60793-1-32 - Optical fibres - EN 60793-1-32 2003
(mod) Part 1-32: Measurement methods and test
procedures - Coating strippability

1) 2)
IEC 60793-1-33 - Optical fibres - EN 60793-1-33 2002
Part 1-33: Measurement methods and test
procedures - Stress corrosion susceptibility

1) 2)
IEC 60793-1-40 - Optical fibres - EN 60793-1-40 2003
(mod) Part 1-40: Measurement methods and test
procedures - Attenuation
1) 2)
IEC 60793-1-44 - Optical fibres - EN 60793-1-44 2002
Part 1-44: Measurement methods and test
procedures - Cut-off wavelength

1) 2)
IEC 60793-1-45 - Optical fibres - EN 60793-1-45 2003
(mod) Part 1-45: Measurement methods and test + corr. April 2004
procedures - Mode field diameter

1) 2)
IEC 60793-1-46 - Optical fibres - EN 60793-1-46 2002
Part 1-46: Measurement methods and test
procedures - Monitoring of changes in optical
transmittance
1) 2)
IEC 60793-1-47 - Optical fibres - EN 60793-1-47 2007
Part 1-47: Measurement methods and test
procedures - Macrobending loss

1)
Undated reference.
2)
Valid edition at date of issue.

Publication Year Title EN/HD Year

1) 2)
IEC 60793-1-50 - Optical fibres - EN 60793-1-50 2002
Part 1-50: Measurement methods and test
procedures - Damp heat (steady state)

1) 2)
IEC 60793-1-51 - Optical fibres - EN 60793-1-51 2002
Part 1-51: Measurement methods and test
procedures - Dry heat
1) 2)
IEC 60793-1-52 - Optical fibres - EN 60793-1-52 2002
Part 1-52: Measurement methods and test
procedures - Change of temperature

1) 2)
IEC 60793-2 - Optical fibres - EN 60793-2 2008
Part 2: Product specifications - General

1)
IEC/TR 61931 - Fibre optic - Terminology - -

IEC 60793-2-60
Edition 1.0 2008-02
INTERNATIONAL
STANDARD
Optical fibres –
Part 2-60: Product specifications – Sectional specification for category C single-
mode intraconnection fibres
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
T
ICS 33.180.10 ISBN 2-8318-9629-0

– 2 – 60793-2-60 © IEC:2008(E)
CONTENTS
FOREWORD.4

1 Scope.6
2 Normative references .7
3 Terms, definitions, symbols and abbreviations.8
3.1 Terms and definitions .8
3.2 Symbols and abbreviations.8
4 Specifications .8
4.1 Dimensional requirements .8
4.2 Mechanical requirements.9
4.3 Transmission requirements .9
4.4 Environmental requirements .10
4.4.1 Transmission requirements.11
4.4.2 Mechanical requirements.11

Annex A (normative) Family specification for C1 single-mode fibre .13
Annex B (normative)  Family specification for C2 single-mode fibre .16
Annex C (normative) Family specification for C3 single-mode fibre .19
Annex D (normative) Family specification for C4 single-mode fibre .21

Bibliography.23

Table 1 – List of families and main differences.6
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 dependant 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 .13
Table A.3 – Transmission requirements for C1 fibres .14
Table A.4 – Environment dependant transmission requirements for C1 fibres .14
Table A.5 – Environment dependant 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

60793-2-60 © IEC:2008(E) – 3 –
Table B.4 – Environment dependant transmission requirements for C2 fibres .17
Table B.5 – Environment dependant mechanical requirements for C2 fibres .18
Table C.1 – Dimensional requirements for C3 fibres .19
Table C.2 – Mechanical requirements for C3 fibres .19
Table C.3 – Transmission requirements for C3 fibres.20
Table C.4 – Environment dependant transmission requirements for C3 fibres .20
Table C.5 – Environment dependant mechanical requirements for C3 fibres .20
Table D.1 – Dimensional requirements for C4 fibres .21
Table D.2 – Mechanical requirements for C4 fibres .21
Table D.3 – Transmission requirements for C4 fibres.22
Table D.4 – Environment dependant transmission requirements for C4 fibres .22

– 4 – 60793-2-60 © IEC:2008(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
OPTICAL FIBRES –
Part 2-60: Product specifications –
Sectional specification for category C
single-mode intraconnection 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 60793-2-60 has been prepared by subcommittee 86A: Fibres and
cables, of IEC technical committee 86: Fibre optics.
The text of this standard is based on the following documents:
CDV Report on voting
86A/1160A/CDV 86A/1201/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.

60793-2-60 © IEC:2008(E) – 5 –
A list of all parts of the IEC 60793 series can be found, under the general title Optical Fibres,
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.
A bilingual version of this publication may be issued at a later date.

– 6 – 60793-2-60 © IEC:2008(E)
OPTICAL FIBRES –
Part 2-60: Product specifications –
Sectional specification for category C
single-mode intraconnection fibres

1 Scope
This part of IEC 60793 is applicable to optical fibre types C1, C2, C3, C4, as described in
Table 1. These fibres are used for the intraconnections within or between components or
photonic systems or subsystems. While the fibres are sold in lengths on the scale of
kilometres, they are normally cut into short lengths for use in these intraconnections. While
the fibres could be overcoated or buffered for the purpose of making protected pigtails, they
may be used without overcoating. They may, however, be colour-coded.
The general requirements defined in IEC 60793-2 apply to these fibres. Specific requirements
that are common to these fibres are found in the body of this text. Particular requirements for
individual fibre types or applications are defined in Annexes A, B, C and D, which refer to
normative family specifications. These family specifications are distinguished based on
optimum transmission wavelengths and nominal Mode Field Diameter (MFD), which affects
splice loss.
For each family specification, there are two sub-categories that are distinguished on the basis
of the cladding diameter and other related attributes. The conventional nominal cladding
diameter of 125 μm is augmented with the reduced cladding type product with a nominal
diameter of 80 μm. These are distinguished with the suffixes: “_125” or “_80”. For example C1
fibre can be selected as either C1_125 or C1_80. The transmission characteristics of the two
cladding diameter choices should be the same.
For each family specification except C1, there are two sub-categories that are distinguished
on the basis of transmission characteristics that relate to MFD. To denote these sub-
categories, a "_a" or "_b" suffix is added, for lower or higher MFD. In general, the fibres can
be optimised for either splice loss or macro-bend loss using MFD as a main variable. A C2
fibre with 80 μm cladding diameter and lower MFD is designated as C2_80_a.
Fibres for the C1_125 family specification can be selected fom category B1.1 or B1.3 single-
mode fibres and are suitable for use with any category B single-mode fibre at wavelengths
from 1 280 nm to 1 625 nm. Fibres for the C2 and C3 family specifications are optimized at
nominal wavelengths of 1 310 nm and 1 550 nm respectively for connection to any category B
single-mode fibre. Fibres for the C4 family specification are optimized for transporting optical
amplifier pump light at 980 nm or higher.
Table 1 – List of families and main differences
Families Nominal transmission wavelengths Nominal MFDs
nm
C1 1 260, 1 550 and 1 625 8,6 – 9,5 μm at 1 310 nm
C2 1 310 5,0 – 7,0 μm at 1 310 nm
C3 1 550 and 1 625
5,5 – 7,5 μm at 1 550 nm
C4 980
4,0 – 7,0 μm at 980 nm
60793-2-60 © IEC:2008(E) – 7 –
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 60793-1-20, Optical fibres – Part 1-20: Measurement methods and test procedures –
Fibre geometry
IEC 60793-1-21, Optical fibres – Part 1-21: Measurement methods and test procedures –
Coating geometry
IEC 60793-1-22, Optical fibres – Part 1-22: Measurement methods and test procedures –
Length measurement
IEC 60793-1-30, Optical fibres – Part 1-30: Measurement methods and test procedures –
Fibre proof test
IEC 60793-1-31, Optical fibres – Part 1-31: Measurement methods and test procedures –
Tensile strength
IEC 60793-1-32, Optical fibres – Part 1-32: Measurement methods and test procedures –
Coating strippability
IEC 60793-1-33, Optical fibres – Part 1-33: Measurement methods and test procedures –
Stress corrosion susceptibility
IEC 60793-1-40, Optica
...