EN IEC 61300-3-30:2021

SLOVENSKI STANDARD
01-april-2021
Nadomešča:
SIST EN 61300-3-30:2004
Optični spojni elementi in pasivne komponente - Postopki osnovnega preskušanja
in meritev- 3-30. del: Preiskave in meritve - Geometrija čela za pravokotne tulce
(IEC 61300-3-30:2020)
Fibre optic interconnecting devices and passive components - Basic test and
measurement procedures - Part 3-30: Examinations and measurements - Endface
geometry of rectangular ferrule (IEC 61300-3-30:2020)
Lichtwellenleiter - Verbindungselemente und passive Bauteile - Grundlegende Prüf- und
Messverfahren - Teil 3-30: Untersuchungen und Messungen - Endflächen-Geometrie
einer rechteckigen Ferrule (IEC 61300-3-30:2020)
Dispositifs d’interconnexion et composants passifs fibroniques - Procédures
fondamentales d’essais et de mesures - Partie 3-30: Examens et mesures - Géométrie
de la face terminale de la ferrule rectangulaire (IEC 61300-3-30:2020)
Ta slovenski standard je istoveten z: EN IEC 61300-3-30:2021
ICS:
33.180.20 Povezovalne naprave za Fibre optic interconnecting
optična vlakna devices
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 61300-3-30

NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2021
ICS 33.180.20 Supersedes EN 61300-3-30:2003 and all of its
amendments and corrigenda (if any)
English Version
Fibre optic interconnecting devices and passive components -
Basic test and measurement procedures - Part 3-30:
Examinations and measurements - Endface geometry of
rectangular ferrule
(IEC 61300-3-30:2020)
Dispositifs d'interconnexion et composants passifs Lichtwellenleiter - Verbindungselemente und passive
fibroniques - Procédures fondamentales d'essais et de Bauteile - Grundlegende Prüf- und Messverfahren - Teil 3-
mesures - Partie 3-30: Examens et mesures - Géométrie de 30: Untersuchungen und Messungen - Endflächen-
la face terminale de la ferrule rectangulaire Geometrie einer rechteckigen Ferrule
(IEC 61300-3-30:2020) (IEC 61300-3-30:2020)
This European Standard was approved by CENELEC on 2021-01-18. 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,
Turkey 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
© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61300-3-30:2021 E

European foreword
The text of document 86B/4357/FDIS, future edition 2 of IEC 61300-3-30, prepared by SC 86B "Fibre
optic interconnecting devices and passive components" of IEC/TC 86 "Fibre optics" was submitted to
the IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 61300-3-30:2021.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2021-10-18
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2024-01-18
document have to be withdrawn
This document supersedes EN 61300-3-30:2003 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.
Endorsement notice
The text of the International Standard IEC 61300-3-30:2020 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 61300 (series) NOTE Harmonized as EN 61300 (series)
IEC 61755-3-31:2015 NOTE Harmonized as EN 61755-3-31:2015 (not modified)
IEC 61755-3-32:2015 NOTE Harmonized as EN 61755-3-32:2016 (not modified)

IEC 61300-3-30 ®
Edition 2.0 2020-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fibre optic interconnecting devices and passive components – Basic test and

measurement procedures –
Part 3-30: Examinations and measurements – Endface geometry of rectangular

ferrule
Dispositifs d’interconnexion et composants passifs fibroniques – Procédures

fondamentales d’essais et de mesures –

Partie 3-30: Examens et mesures – Géométrie de la face terminale de la ferrule

rectangulaire
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.20 ISBN 978-2-8322-9121-4

– 2 – IEC 61300-3-30:2020 © IEC 2020
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 General description . 6
5 Measurement regions . 7
6 Apparatus . 8
6.1 General . 8
6.2 Ferrule holder . 8
6.3 Positioning stage . 9
6.4 Three-dimensional interferometry analyser . 9
7 Procedure . 9
8 Details to be specified . 11
Annex A (normative) Formulae for approximating the end face geometry . 12
A.1 Approximation of the ferrule surface. 12
A.2 Approximation of the fibre tip radii. 12
Annex B (normative) Surface angle sign convention (shown graphically) . 13
Annex C (normative) Fibre counting convention (shown graphically) . 14
Annex D (normative) Minus coplanarity and fibre plane angle determination . 15
D.1 Overview. 15
D.1.1 General . 15
D.1.2 Minus coplanarity. 15
D.1.3 Fibre plane x-axis and y-axis angles . 15
D.2 Method for analysis . 15
D.2.1 Single row ferrules . 15
D.2.2 Multi-row ferrules . 15
D.3 Documentation . 16
Annex E (normative) Calculation of core dip using the paraboloid method. 17
E.1 General . 17
E.2 Method for analysis . 17
Annex F (normative) Calculation of GL parameter . 18
F.1 General . 18
F.2 Method for analysis . 18
Bibliography . 20

Figure 1 – Measurement regions on ferrule and fibre . 7
Figure 2 – Measurement setup . 8
Figure B.1 – Surface angle sign convention . 13
Figure C.1 – Fibre counting convention . 14
Figure E.1 – Paraboloid fit to a fibre endface exhibiting core dip . 17

Table 1 – Ferrule measurement areas and parameters . 8
Table F.1 – Parameter constants for 4-fibre ferrules . 19

IEC 61300-3-30:2020 © IEC 2020 – 3 –
Table F.2 – Parameter constants for 8-fibre ferrules . 19
Table F.3 – Parameter constants for 12-fibre ferrules . 19

– 4 – IEC 61300-3-30:2020 © IEC 2020
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONNECTING DEVICES
AND PASSIVE COMPONENTS –
BASIC TEST AND MEASUREMENT PROCEDURES –

Part 3-30: Examinations and measurements –
Endface geometry of rectangular ferrule

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 itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
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 61300-3-30 has been prepared by subcommittee 86B: Fibre optic
interconnecting devices and passive components, of IEC technical committee 86: Fibre optics.
This second edition cancels and replaces the first edition published in 2003. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) measurement of the individual fibre tip radii;
b) introduction of the geometry limit (GL) metric;
c) introduction of the minus coplanarity metric;
d) new method for measuring the core dips;
e) all measurement regions are now identical for MM and SM fibres;

IEC 61300-3-30:2020 © IEC 2020 – 5 –
f) the ferrule surface angle sign convention has been changed.
The text of this International Standard is based on the following documents:
FDIS Report on voting
86B/4357/FDIS 86B/4378/RVD
Full information on the voting for the approval of this International Standard can be found in the
report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 61300 series, published under the general title Fibre optic
interconnecting devices and passive components – Basic test and measurement procedures,
can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
– 6 – IEC 61300-3-30:2020 © IEC 2020
FIBRE OPTIC INTERCONNECTING DEVICES
AND PASSIVE COMPONENTS –
BASIC TEST AND MEASUREMENT PROCEDURES –

Part 3-30: Examinations and measurements –
Endface geometry of rectangular ferrule

1 Scope
This part of IEC 61300 describes a method of measuring the end face geometry of rectangular
multifibre ferrules having an IEC defined optical interface. The primary attributes are fibre
position relative to the end face, either withdrawal or protrusion, end face angle relative to the
guide pin bores, fibre tip radii and core dip for multimode fibres.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
4 General description
Guide pin based multifibre connector plugs typically have a rectangular end face with a long
axis and a short axis. Ideally, a flat polish is desired on the end face with the fibres protruding
slightly and all in the same plane to assure physical contact of the fibre cores when two
connectors are intermated. In practice, the end face typically has two different curvatures across
the surface along the long and short axis. Since mated ferrules are aligned by pins in the guide
holes, the end face of the ferrule shall be properly oriented (S and S angles) with respect to
x y
the guide holes to achieve positive contact. The end face angle S in the x axis and the end
x
face angle S in the y axis are measured by finding the best fit plane based on a percentage of
y
the highest points in a specified region of interest. The highest points typically show the greatest
modulation from an interferometric standpoint. This allows for more robust measurements and
greater repeatability between different interferometers.
The angle of the best fit plane is calculated by comparing it to the reference plane which is
perpendicular to the axis of each guide hole. The height H (positive is a protrusion) of the fibres
is a planar height defined as the distance between the fibre end face and the best fit plane.
Core di
...