IEC 60793-2-60:2008

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
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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
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patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60793-2-60 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
...