Fibre optic interconnecting devices and passive components - Fibre optic connector optical interfaces - Part 3-31: End face geometry - Flat PC PPS rectangular ferrule multimode fibres

IEC PAS 63267-3-31:2020 defines certain dimensional limits of a flat PC rectangular polyphenylene sulphide (PPS) ferrule optical interface in order to meet specific longitudinal offset requirements for fibre-to-fibre interconnection. Ferrules made from the material specified in this PAS are suitable for use in categories C, U, E, and O as defined in IEC 61753-1.
Ferrule interface dimensions and features are contained in IEC 61754 (all parts), which deals with fibre optic connector interfaces.

General Information

Status
Published
Publication Date
06-Feb-2020
Current Stage
PPUB - Publication issued
Completion Date
07-Feb-2020
Ref Project

Buy Standard

Technical specification
IEC PAS 63267-3-31:2020 - Fibre optic interconnecting devices and passive components - Fibre optic connector optical interfaces - Part 3-31: End face geometry - Flat PC PPS rectangular ferrule multimode fibres
English language
16 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (sample)

IEC PAS 63267-3-31
Edition 1.0 2020-02
PUBLICLY AVAILABLE
SPECIFICATION
colour
inside
Fibre optic interconnecting devices and passive components – Fibre optic
connector optical interfaces –
Part 3-31: End face geometry – Flat PC PPS rectangular ferrule multimode fibres
IEC PAS 63267-3-31:2020-02(en)
---------------------- Page: 1 ----------------------
THIS PUBLICATION IS COPYRIGHT PROTECTED
Copyright © 2020 IEC, Geneva, Switzerland

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form

or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from

either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC

copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or

your local IEC member National Committee for further information.
IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC

The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes

International Standards for all electrical, electronic and related technologies.
About IEC publications

The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the

latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org

The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,

variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English

committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.

and withdrawn publications. Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Just Published - webstore.iec.ch/justpublished

Stay up to date on all new IEC publications. Just Published IEC Glossary - std.iec.ch/glossary

details all new publications released. Available online and once 67 000 electrotechnical terminology entries in English and

a month by email. French extracted from the Terms and Definitions clause of IEC
publications issued since 2002. Some entries have been

IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and

If you wish to give us your feedback on this publication or need CISPR.
further assistance, please contact the Customer Service
Centre: sales@iec.ch.
---------------------- Page: 2 ----------------------
IEC PAS 63267-3-31
Edition 1.0 2020-02
PUBLICLY AVAILABLE
SPECIFICATION
colour
inside
Fibre optic interconnecting devices and passive components – Fibre optic
connector optical interfaces –
Part 3-31: End face geometry – Flat PC PPS rectangular ferrule multimode fibres
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.180.20 ISBN 978-2-8322-7814-7

Warning! Make sure that you obtained this publication from an authorized distributor.

® Registered trademark of the International Electrotechnical Commission
---------------------- Page: 3 ----------------------
– 2 – IEC PAS 63267-3-31:2020 © IEC 2020
CONTENTS

FOREWORD ........................................................................................................................... 3

1 Scope .............................................................................................................................. 5

2 Normative references ...................................................................................................... 5

3 Terms and definitions ...................................................................................................... 5

4 Description ...................................................................................................................... 5

5 Interface parameters ....................................................................................................... 6

Annex A (normative) Minus coplanarity ............................................................................... 10

Annex B (informative) Minimum normal force required to achieve physical contact ............. 11

Bibliography .......................................................................................................................... 16

Figure 1 – Fibre numbering conventions ................................................................................. 7

Figure 2– Interface dimensions related to longitudinal offset ................................................... 7

Figure A.1 – Illustration of fibre line and minus coplanarity parameters ................................. 10

Figure B.1 – Geometry Limit, GL, needed to mate 12 fibres, as a function of absolute

X-angle, SX for different magnitudes of minus coplanarity and flat fibre tips ...................... 12

Figure B.2 – Geometry Limit, GL, needed to mate 12 fibres, as a function of absolute

X-angle, SX for different magnitudes of minus coplanarity and 1 mm fibre tips .................. 13

Table 1 – Optical interface variant information ........................................................................ 6

Table 2 – Physical contact end face geometry dimensions having <50% fibres with

core dip for optical interface variant 1112 ............................................................................... 8

Table 3 – Physical contact end face geometry dimensions having >50% fibres with

core dip for optical interface variant 1112 ............................................................................... 9

Table B.1 – Parameter constants for 12-fibre optical interface variant 1112 .......................... 15

---------------------- Page: 4 ----------------------
IEC PAS 63267-3-31:2020 © IEC 2020 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC INTERCONNECTING DEVICES
AND PASSIVE COMPONENTS –
FIBRE OPTIC CONNECTOR OPTICAL INTERFACES –
Part 3-31: End face geometry – Flat PC PPS rectangular ferrule
multimode 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 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.

A PAS is an intermediate specification made available to the public and needing a lower level

of consensus than an International Standard to be approved by vote (simple majority).

IEC PAS 63267-3-31 has been processed by subcommittee 86B: Fibre optic interconnecting

devices and passive components, of IEC technical committee 86: Fibre optics.
The text of this PAS is based on the This PAS was approved for
following document: publication by the P-members of the
committee concerned as indicated in
the following document
Draft PAS Report on voting
86B/4231/PAS 86B/4249/RVDPAS

Following publication of this PAS, which is a pre-standard publication, the technical committee

or subcommittee concerned may transform it into an International Standard.
---------------------- Page: 5 ----------------------
– 4 – IEC PAS 63267-3-31:2020 © IEC 2020

This PAS shall remain valid for an initial maximum period of 2 years starting from the publication

date. The validity may be extended for a single period up to a maximum of 2 years, at the end

of which it shall be published as another type of normative document, or shall be withdrawn.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates

that it contains colours which are considered to be useful for the correct understanding

of its contents. Users should therefore print this document using a colour printer.

---------------------- Page: 6 ----------------------
IEC PAS 63267-3-31:2020 © IEC 2020 – 5 –
FIBRE OPTIC INTERCONNECTING DEVICES
AND PASSIVE COMPONENTS –
FIBRE OPTIC CONNECTOR OPTICAL INTERFACES –
Part 3-31: End face geometry – Flat PC PPS rectangular ferrule
multimode fibres
1 Scope

This part of IEC 63267 defines certain dimensional limits of a flat PC rectangular polyphenylene

sulphide (PPS) ferrule optical interface in order to meet specific longitudinal offset requirements

for fibre-to-fibre interconnection. Ferrules made from the material specified in this PAS are

suitable for use in categories C, U, E, and O as defined in IEC 61753-1.

Ferrule interface dimensions and features are contained in IEC 61754 (all parts), which deals

with fibre optic connector interfaces.
2 Normative references

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.

IEC 61300-3-30, Fibre optic interconnecting devices and passive components – Basic test and

measurement procedures – Part 3-30: Examinations and measurements – Polish angle and

fibre position on single ferrule multifibre connectors
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 Description

The performance of a multimode flat PC rectangular ferrule optical interface is determined by

the accuracy with which the optical datum targets of two mating ferrules are aligned with each

other. There are three conditions affecting the alignment of the optical datum targets: lateral

offset, angular offset, and longitudinal offset.

Parameters influencing the lateral and angular offset of the optical fibre axes include the

following:
– fibre hole deviation from designated location;
– fibre cladding diameter relative to fibre hole clearance;
– fibre hole angular misalignment;
– fibre core concentricity relative to the cladding diameter;
– alignment pin diameter relative to the guide hole clearance.
---------------------- Page: 7 ----------------------
– 6 – IEC PAS 63267-3-31:2020 © IEC 2020

Parameters influencing the longitudinal offset of the optical fibre axes include the following:

– fibre protrusion;
– fibre array minus coplanarity;
– adjacent fibre height differential;
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.