IEC 60793-2:2007

IEC 60793-2
Edition 6.0 2007-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Optical fibres –
Part 2: Product specifications – General

Fibres optiques –
Partie 2: Spécifications de produits – Généralités

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IEC 60793-2
Edition 6.0 2007-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Optical fibres –
Part 2: Product specifications – General

Fibres optiques –
Partie 2: Spécifications de produits – Généralités

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
J
CODE PRIX
ICS 33.180.10 ISBN 2-8318-9366-6

– 2 – 60793-2 © IEC:2007
CONTENTS
FOREWORD.3

1 Scope.5
2 Normative references .5
3 Terms and definitions .6
4 Quality assurance.7
5 Construction of optical fibres .7
5.1 Category A – Multimode fibres.7
5.2 Category B – Single-mode fibres .7
5.3 Category C – Single-mode fibres for intraconnection .8
6 General requirements .9
6.1 Coating .9
6.2 Buffer .9
6.3 Colours of the coating and/or buffer .9

Table 1 − Sectional specifications.5
Table 2 – Categories of multimode fibres .7
Table 3 – Categories of glass core/glass clad single-mode fibres.8
Table 4 – Categories of glasscor/glass clad single mode fibres for intraconnection.8

60793-2 © IEC:2007 – 3–
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
OPTICAL FIBRES –
Part 2: Product specifications –
General
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
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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 has been prepared by subcommittee 86A: Fibres and
cables, of IEC technical committee 86: Fibre optics.
This sixth edition cancels and replaces the fifth edition published in 2003. This modification
has been necessary because of the addition of new fibre categories to IEC 60793-2-40, IEC
60793-2-50 and IEC 60793-2-60.
Document ID Fibre category
60793-2-10 A1
60793-2-20 A2
60793-2-30 A3
60793-2-40 A4
60793-2-50 B (all)
60793-2-60 C
– 4 – 60793-2 © IEC:2007
This standard is to be read in conjunction with IEC 60793-1 series.
The text of this standard is based on the following documents:
FDIS Report on voting
86A/1168/FDIS 86A/1192/RVD
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.
A list of all parts of the IEC 60793 series, published under the general title Optical fibres, can
be found 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.
60793-2 © IEC:2007 – 5–
OPTICAL FIBRES –
Part 2: Product specifications –
General
1 Scope
This part of IEC 60793 contains the general specifications for both multimode and single-
mode optical fibres. Sectional specifications for each of the four multimode categories: A1,
A2, A3, and A4 contain requirements specific to each category. A sectional specification for
all single-mode categories contains requirements common to all single-mode fibres. Within
each sectional specification, family specifications – found as normative annexes – contain
requirements for the applicable sub-categories. These sub-categories are distinguished on
the basis of different fibre types or applications.
The requirements of this standard apply to all categories. Each sectional specification
contains the requirements that are common to all the family specifications that are within it.
These common requirements are copied to the family specification for ease of reference.
Tests or measurement methods are defined for each specified attribute. Where possible,
these definitions are by reference to an IEC standard – otherwise the test or measurement
method is outlined in the relevant sectional specification.
The following table defines the sectional specifications. The relevant family specifications are
defined within the sectional specifications as normative annexes (see Tables 2 and 3)
Table 1 − Sectional specifications
Document ID Fibre category Cladding material Core material Index profile
60793-2-10 A1 multi-mode Glass Glass Graded
60793-2-20 A2 multi-mode Glass Glass Quasi step or step
60793-2-30 A3 multi-mode Plastic Glass Step
60793-2-40 A4 multi-mode Plastic Plastic Step, multi-step, or
graded index fibre
60793-2-50 B single-mode Glass Glass Not applicable
60793-2-60 C single mode Glass Glass Not applicable

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 60304, Standard colours for insulation for low-frequency cables and wires
IEC 60793-1 (all parts), Optical fibres − Part 1: Measurement methods and test procedures
IEC 60793-2-10, Optical fibres − Part 2-10: Product specifications – Sectional specification
for category A1 multimode fibres

– 6 – 60793-2 © IEC:2007
IEC 60793-2-20, Optical fibres − Part 2-20: Product specifications – Sectional specification for
category A2 multimode fibres
IEC 60793-2-30, Optical fibres − Part 2-30: Product specifications – Sectional specification for
category A3 multimode fibres
IEC 60793-2-40, Optical fibres − Part 2-40: P
...