EN 62496-4:2011

SLOVENSKI STANDARD
01-maj-2011
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Optical circuit boards - Part 4: Interface standards - General and guidance (IEC 62496-
4:2011)
Optische Leiterplatten - Teil 4: Schnittstellennormen - Allgemeines und Leitfaden (IEC
62496-4:2011)
Cartes à circuits optiques - Partie 4: Normes d'interface - Généralités et lignes directrices
(CEI 62496-4:2011)
Ta slovenski standard je istoveten z: EN 62496-4:2011
ICS:
31.180 7LVNDQDYH]MD7,9LQWLVNDQH Printed circuits and boards
SORãþH
33.180.01 6LVWHPL]RSWLþQLPLYODNQLQD Fibre optic systems in
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 62496-4
NORME EUROPÉENNE
March 2011
EUROPÄISCHE NORM
ICS 33.180.01
English version
Optical circuit boards -
Part 4: Interface standards -
General and guidance
(IEC 62496-4:2011)
Cartes à circuits optiques -  Optische Leiterplatten -
Partie 4: Normes d'interface - Teil 4: Schnittstellennormen -
Généralités et lignes directrices Allgemeines und Leitfaden
(CEI 62496-4:2011) (IEC 62496-4:2011)

This European Standard was approved by CENELEC on 2011-03-02. 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 Central Secretariat 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 Central Secretariat 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, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62496-4:2011 E
Foreword
The text of document 86/379/FDIS, future edition 1 of IEC 62496-4, prepared by IEC TC 86, Fibre optics,
was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 62496-4 on
2011-03-02.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
(dop) 2011-12-02
national standard or by endorsement
– latest date by which the national standards conflicting
(dow) 2014-03-02
with the EN have to be withdrawn
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 62496-4:2011 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 60027 series NOTE  Harmonized in EN 60027 series (not modified).
IEC 60695-11-5 NOTE  Harmonized as EN 60695-11-5.
IEC 60825-1 NOTE  Harmonized as EN 60825-1.
IEC 60825-2 NOTE  Harmonized as EN 60825-2.
IEC 61300 series NOTE  Harmonized in EN 61300 series (not modified).
ISO 286-1 NOTE  Harmonized as EN ISO 286-1.
ISO 1101 NOTE  Harmonized as EN ISO 1101.
ISO 7083 NOTE  Harmonized as EN ISO 7083.
__________
- 3 - EN 62496-4:2011
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

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.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

IEC 60793-1-45 - Optical fibres - EN 60793-1-45 -
(mod) Part 1-45: Measurement methods and test
procedures - Mode field diameter

IEC 62496-4 ®
Edition 1.0 2011-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Optical circuit boards –
Part 4: Interface standards – General and guidance

Cartes à circuits optiques –
Partie 4: Normes d'interface – Généralités et lignes directrices

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX U
ICS 33.180.01 ISBN 978-2-88912-317-9
– 2 – 62496-4  IEC:2011
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
3.1 General definitions . 6
3.2 Core shape definitions . 7
4 Coordinates of I/O ports of waveguide OCB . 9
4.1 Structural types of waveguide OCB . 9
4.2 Origin point and coordinate axis . 11
4.2.1 General . 11
4.2.2 Origin point and coordinate axis by internal coordinate . 12
4.2.3 Origin point and axis by external coordinate . 14
4.2.4 Origin point and axis employing both internal and external
coordinates. 15
5 Misalignment angle of I/O ports . 16
5.1 General . 16
5.2 Misalignment angle of I/O port in edge type . 16
5.3 Misalignment angle in surface type I/O port . 18
6 Mirror angle . 19
7 Hole . 21
8 Dimensioning system . 22
9 Gauges . 22
10 Tolerance grade of the OCB . 22
10.1 General . 22
10.2 Shape accuracy of the OCB body of fibre flexible OCB . 23
10.3 Position accuracy of the OCB port/I/O port of fibre flexible OCB . 23
10.4 Length accuracy of the OCB tails of fibre flexible OCB . 24
Annex A (normative) OCB interfaces . 25
Annex B (informative) Example of the OCB . 28
Bibliography . 30

Figure 1 – Examples of shapes of square core (quasi-square made by extrapolation or

interpolation) . 8
Figure 2 – Examples of shapes of circular core . 8
Figure 3 – Six structural parameters of square core shape of waveguide OCB . 9
Figure 4 – Example of OCB with end face I/O ports at edge of board . 10
Figure 5 – Example of OCB with end face I/O type. 10
Figure 6 – Example of OCB with surface I/O ports . 11
Figure 7 – Example of OCB with surface I/O ports . 11
Figure 8 – Definition of origin point 1): A specific port is used as the origin point . 12
Figure 9 – Definition of origin point 2): Determination of an origin point at a place
where there is no port (a mid-point of adjacent two ports at the centre of bottom line is
used as the origin) . 13

62496-4  IEC:2011 – 3 –
Figure 10 – Definition of the direction of coordinate axis 1): Use the direction of
alignment of multiple ports . 13
Figure 11 – Definition of direction of coordinate axis 2): Along a specific optical circuit
(only if the wire is recognizable). 13
Figure 12 – Origin point and coordinate axis (1) . 14
Figure 13 – Origin point and coordinate axis (2) . 14
Figure 14 – Origin point and direction of coordinate axis (combination of Figure 12 and
Figure 13) . 15
Figure 15 – Use of both internal coordinate and external coordinate systems: Internal
for the origin point (a specific optical input/output port) and external for the direction of
the axis (dedicated structures) . 15
Figure 16 – Use of both internal coordinate and external coordinate systems: Internal
for the origin point (coordinates of a specific optical input/output port) and external for
the direction of the axis (periphery of the board) . 16
Figure 17 – Definition of misalignment angle of I/O port in edge type . 17
Figure 18 – Definition of vertical and horizontal rotational misalignment angle of I/O
port in edge type . 17
Figure 19 – Definition of misalignment angle of I/O port in surface type . 18
Figure 20 – Definition of longitudinal and lateral misalignment angle of I/O port in
surface type . 19
Figure 21 – Mirror angle 1 . 19
Figure 22 – Mirror angle 2 . 19
Figure 23 – Mirror angle 3 . 20
Figure 24 – Mirror angle 4 . 20
Figure 25 – Mirror tilt angle . 21
Figure 26 – Example of optical alignment hole . 21
Figure 27 – Hole and objects to be measured . 22
Figure 28 – Classification of shape accuracy of OCB body of fibre flexible OCB . 23
Figure B.1 – Example of the fibre flexible OCB . 28
Figure B.2 – Origin point and coordinate for the fibre flexible OCB . 29

Table 1 – The coordinate system, origin point and coordinate axis . 12

– 4 – 62496-4  IEC:2011
INTERNATIONAL ELECTROTECHNICAL COMMISSION
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OPTICAL CIRCUIT BOARDS –
Part 4:
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