IEC 62496-3-1:2009

Optical circuit boards - Part 3-1: Performance standards - Flexible optical circuit boards using unconnectorized optical glass fibres

IEC 62496-3-1:2009 defines the performance of flexible optical circuit boards (FOCBs) using unconnectorized optical glass fibres for controlled environment. This standard clarifies the requirements for quality classification of the flexible OCBs incorporating optical glass fibres.

Cartes à circuits optiques - Partie 3-1: Norme de performance - Cartes à circuits optiques souples utilisant des fibres optiques en verre, non connectorisées

La CEI 62496-3-1:2009 définit les performances des cartes à circuits optiques souples (FOCB ) utilisant des fibres optiques en verre, non connectorisées, pour environnement contrôlé. La présente norme clarifie les exigences de classification de la qualité des OCB souples intégrant des fibres optiques en verre.

General Information

• Status: Published
• Publication Date: 17-Aug-2009
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 31.180 - Printed circuits and boards
• ICS: 33.180.01 - Fibre optic systems in general
• Technical Committee: TC 86 - Fibre optics
• Drafting Committee: JWG 9 - TC 86/JWG 9
• Current Stage: PPUB - Publication issued
• Start Date: 15-Nov-2009
• Completion Date: 18-Aug-2009

Standards Content (Sample)

IEC 62496-3-1 ®
Edition 1.0 2009-08
INTERNATIONAL
STANDARD
Optical circuit boards –
Part 3-1: Performance standards – Flexible optical circuit boards using
unconnectorized optical glass fibres

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
3, rue de Varembé
CH-1211 Geneva 20
Switzerland
Email: [e-mail]
Web: www.iec.ch
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 corrigenda or an amendment might have been published.
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IEC 62496-3-1 ®
Edition 1.0 2009-08
INTERNATIONAL
STANDARD
Optical circuit boards –
Part 3-1: Performance standards – Flexible optical circuit boards using
unconnectorized optical glass fibres

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
N
ICS 31.180; 33.180.01 ISBN 978-2-88910-740-7
– 2 – 62496-3-1 © IEC:2009(E)
CONTENTS
FOREWORD.3
1 Scope.5
2 Normative references .5
3 Terms and definitions .5
4 Tests .7
5 Test report.7
6 Reference components.7
7 Visual inspection .7
8 Connectivity inspection.7
9 Performance requirements .8
9.1 Sample size, test sequencing and grouping.8
9.2 Performance details .8
Annex A (normative) Test method of bending endurance of fibre flexible OCB .10
Annex B (normative) Optical fibre routing pattern and dimension of test specimen.11
Annex C (normative) Test sample size, test sequencing and grouping requirements.12
Annex D (normative) Test method of static pressure endurance of OCB body .13
Bibliography.14

Figure 1 – Example of fibre flexible OCB .6
Figure A.1 – Configuration of the bending endurance test.10
Figure B.1 – Optical fibre routing pattern and the dimensional outline drawing of
OCB body for the test specimen .11
Figure D.1 – Configuration of static pressure endurance test .13

Table 1 – Optical fibres for FFOCB -1 .6
Table 2 – Optical fibres for FFOCB -2 .7
Table 3 – Performance details .8
Table C.1 – Sample size and sequencing for the performance standard.12

62496-3-1 © IEC:2009(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
OPTICAL CIRCUIT BOARDS –
Part 3-1: Performance standards –
Flexible optical circuit boards using
unconnectorized optical glass 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 62496-3-1 has been prepared by IEC technical committee 86:
Fibre optics.
The text of this standard is based on the following documents:
CDV Report on voting
86/319/CDV 86/342/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.
A list of all parts of IEC 62496 series, published under the general title Optical circuit
boards, can be found on the IEC website.

– 4 – 62496-3-1 © IEC:2009(E)
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.

62496-3-1 © IEC:2009(E) – 5 –
OPTICAL CIRCUIT BOARDS –
Part 3-1: Performance standards –
Flexible optical circuit boards using
unconnectorized optical glass fibres

1 Scope
This part of IEC 62496 defines the performance of flexible optical circuit boards (FOCBs)
using unconnectorized optical glass fibres for controlled environment. This standard
clarifies the requirements for quality classification of the flexible OCBs incorporating optical
glass fibres.
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 61300-2-18, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-18: Tests – Dry heat – High temperature endurance
IEC61300-2-19, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-19: Tests – Damp heat (steady state)
IEC61300-2-22, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-22: Tests – Change of temperature
IEC 61300-3-1, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 3-1: Examinations and measurements – Visual
examination
IEC 61300-3-4, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 3-4: Examinations and measurements – Attenuation
IEC 61300-3-6, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 3-6: Examinations and measurements – Return loss
ISO 5999, Flexible cellular polymeric materials – Polyurethane foam for load-bearing
applications excluding carpet underlay – Specification
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
FFOCB (fibre flexible OCB)
an OCB on which arbitrary routing patterns are made by fixing optical fibres and covered by
a protection layer as illustrated in Figure 1. The fibre flexible OCB consists of a portion
where the optical fibre is adhered to the flexible substrate as a routing pattern (OCB body)
and “OCB tails” where the optical fibre is stacked out from the OCB body. The substrate for

– 6 – 62496-3-1 © IEC:2009(E)
FFOCB is a mechanically flexible polymer sheet on which optical fibres are adhered using
adhesive or attached to the polymer sheet
OCB body
Section
AA
A - A ’ OCB tail
Crossing point
Optical fibre
B B ’
OCB port
I/O port
A ’ Alignment mark
Protection layer
Thickness of fibre flexible OCB
Optical fibre
Substrate
OCB body
Section B-B’
IEC  1650/09
Figure 1 – Example of fibre flexible OCB
3.2
optical fibres for FFOCB
categories of optical fibres to be used for fibre flexible OCB are multimode fibres and
single-mode fibres with glass core/glass cladding (see Tables 1 and 2)
NOTE 1 IEC 60793-2 provides the specifications for the fibres.
Table 1 – Optical fibres for FFOCB-1
Class Category Type Reference
A1 Graded index fibre IEC 60793-2-10
A – Multimode fibres
A2 Quasi step index fibre IEC 60793-2-20
B1.1 Dispersion unshifted
B1.2 Cut-off shifted
B1.3 Extended band
B – Single-mode fibres B2 Dispersion shifted IEC 60793-2-50
B4 Non-zero dispersion shifted
B5 Wideband non-zero dispersion-shifted
B6 Bending loss insensitive
62496-3-1 © IEC:2009(E) – 7 –
NOTE 2 IEC 60793-2-60 also specifies the specification of single-mode intraconnection optical fibres for wiring
in OCB.
Table 2 – Optical fibres for FFOCB-2
Nominal MFD
Family Transmission window Reference
(mode field diameter)
C1 1 300 nm to 1 625 nm
8,6 μm -9,5 μm at 1 310
nm
C2 1 310 nm
5,0 μm -7,0 μm at 1 310
nm
IEC 60793-2-60
C3 1 550 nm
5,5 μm -7,5 μm at 1 550
nm
C4 980 nm
4,0 μm -7,0 μm at 980
nm
3.3
crossing point of optical fibres
position where optical fibres cross each other in the OCB body. The optical fibre overrides
another optical fibre at the crossing point (see Figure 1
...

IEC 62496-3-1 ®
Edition 1.0 2009-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Optical circuit boards –
Part 3-1: Performance standards – Flexible optical circuit boards using
unconnectorized optical glass fibres

Cartes à circuits optiques –
Partie 3-1: Norme de performance – Cartes à circuits optiques souples utilisant
des fibres optiques en verre, non connectorisées

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.

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Switzerland
Email: [e-mail]
Web: www.iec.ch
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 corrigenda or an amendment might have been published.
 Catalogue of IEC publications: www.iec.ch/searchpub
The IEC on-line Catalogue enables you to search by a variety of criteria (reference number, text, technical committee,…).
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The world's leading online dictionary of electronic and electrical terms containing more than 20 000 terms and definitions
in English and French, with equivalent terms in additional languages. Also known as the International Electrotechnical
Vocabulary online.
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IEC 62496-3-1 ®
Edition 1.0 2009-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Optical circuit boards –
Part 3-1: Performance standards – Flexible optical circuit boards using
unconnectorized optical glass fibres

Cartes à circuits optiques –
Partie 3-1: Norme de performance – Cartes à circuits optiques souples utilisant
des fibres optiques en verre, non connectorisées

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX N
ICS 31.180; 33.180.01 ISBN 978-2-88912-766-5

– 2 – 62496-3-1  IEC:2009
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Tests . 7
5 Test report. 7
6 Reference components . 7
7 Visual inspection . 7
8 Connectivity inspection . 7
9 Performance requirements . 8
9.1 Sample size, test sequencing and grouping . 8
9.2 Performance details . 8
Annex A (normative) Test method of bending endurance of fibre flexible OCB . 10
Annex B (normative) Optical fibre routing pattern and dimension of test specimen . 11
Annex C (normative) Test sample size, test sequencing and grouping requirements . 12
Annex D (normative) Test method of static pressure endurance of OCB body . 13
Bibliography . 14

Figure 1 – Example of fibre flexible OCB . 6
Figure A.1 – Configuration of the bending endurance test . 10
Figure B.1 – Optical fibre routing pattern and the dimensional outline drawing of
OCB body for the test specimen . 11
Figure D.1 – Configuration of static pressure endurance test . 13

Table 1 – Optical fibres for FFOCB -1 . 6
Table 2 – Optical fibres for FFOCB -2 . 7
Table 3 – Performance details . 8
Table C.1 – Sample size and sequencing for the performance standard . 12

62496-3-1  IEC:2009 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
OPTICAL CIRCUIT BOARDS –
Part 3-1: Performance standards –
Flexible optical circuit boards using
unconnectorized optical glass 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 62496-3-1 has been prepared by IEC technical committee 86:
Fibre optics.
This bilingual version (2011-11) corresponds to the monolingual English version, published
in 2009-08.
The text of this standard is based on the following documents:
CDV Report on voting
86/319/CDV 86/342/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.
The French version of this standard has not been voted upon.

– 4 – 62496-3-1  IEC:2009
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of IEC 62496 series, published under the general title Optical circuit
boards, 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.
62496-3-1  IEC:2009 – 5 –
OPTICAL CIRCUIT BOARDS –
Part 3-1: Performance standards –
Flexible optical circuit boards using
unconnectorized optical glass fibres

1 Scope
This part of IEC 62496 defines the performance of flexible optical circuit boards (FOCBs)
using unconnectorized optical glass fibres for controlled environment. This standard
clarifies the requirements for quality classification of the flexible OCBs incorporating optical
glass fibres.
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 61300-2-18, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-18: Tests – Dry heat – High temperature endurance
IEC 61300-2-19, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-19: Tests – Damp heat (steady state)
IEC 61300-2-22, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-22: Tests – Change of temperature
IEC 61300-3-1, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 3-1: Examinations and measurements – Visual
examination
...