SIST EN 61076-3-110:2008

Connectors for electronic equipment - Product requirements -- Part 3-110: Rectangular connectors - Detail specification for shielded, free and fixed connectors for data transmission with frequencies up to 1 000 MHz

This part of IEC 61076 is a detail specification, forming part of IEC 61076-3, for IEC 61076-3- 110, two-part connector. It covers mechanical and environmental requirements, and electrical transmission requirements for frequencies up to 1 000 MHz. These connectors can be used as category 7 connectors in class F cabling systems, as specified in ISO/IEC 11801:2002.1 The connectors are intermateable with IEC 60603-7-X series connectors.2 The connectors are interoperable with IEC 60603-7-7 and IEC 60603-7-71 connectors.3 The connectors are backward compatible with IEC 60603-7-7 and IEC 60603-7-71 connectors.4

Steckverbinder für elektronische Einrichtungen - Produktanforderungen -- Teil 3-110: Rechteckige Steckverbinder - Bauartspezifikation für geschirmte freie und feste Steckverbinder für Datenübertragungen bis 1 000 MHz

Connecteurs pour équipements électroniques - Exigences de produit -- Partie 3-110: Connecteurs rectangulaires - Spécification particulière pour les fiches et les embases écrantées pour la transmission de données à des fréquences jusqu'à 1 000 MHz

Couvre les exigences mécaniques et environnementales, et les exigences de transmission électrique pour des fréquences jusqu'à 1 000 MHz. Les connecteurs décrits dans cette norme peuvent être utilisés comme connecteurs de la catégorie 7 dans les systèmes de câblage de la classe F, telle qu'ils sont spécifiés dans l'ISO/CEI 11801:2002.

Konektorji za elektronsko opremo - Zahteve za izdelek - 3-110. del: Pravokotni konektorji - Podrobna specifikacija za zaslonjene, proste in fiksne konektorje za prenos podatkov s frekvencami do 1 000 MHz (IEC 61076-3-110:2007)

General Information

• Status: Withdrawn
• Publication Date: 04-May-2008
• Withdrawal Date: 25-May-2016
• ICS: 31.220.10 - Plug-and-socket devices. Connectors
• Technical Committee: I11 - Imaginarni 11
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 25-May-2016
• Due Date: 17-Jun-2016
• Completion Date: 26-May-2016
• Ref Project: EN 61076-3-110:2008 - Connectors for electronic equipment - Product requirements - Part 3-110: Rectangular connectors - Detail specification for shielded, free and fixed connectors for data transmission with frequencies up to 1 000 MHz

Relations

• Revised: SIST EN 61076-3-110:2012 - Connectors for electronic equipment - Product requirements - Part 3-110: Detail specification for shielded, free and fixed connectors for data transmission with frequencies up to 1000 mhz
• Effective Date: 06-May-2014
• Replaced By: SIST EN 61076-3-110:2012 - Connectors for electronic equipment - Product requirements - Part 3-110: Detail specification for shielded, free and fixed connectors for data transmission with frequencies up to 1000 mhz
• Effective Date: 29-Jan-2023
• Replaced By: SIST EN 61076-3-110:2012 - Connectors for electronic equipment - Product requirements - Part 3-110: Detail specification for shielded, free and fixed connectors for data transmission with frequencies up to 1000 mhz
• Effective Date: 08-Mar-2011

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 61076-3-110:2008
01-junij-2008
Konektorji za elektronsko opremo - Zahteve za izdelek - 3-110. del: Pravokotni
konektorji - Podrobna specifikacija za zaslonjene, proste in fiksne konektorje za
prenos podatkov s frekvencami do 1 000 MHz (IEC 61076-3-110:2007)
Connectors for electronic equipment - Product requirements - Part 3-110: Rectangular
connectors - Detail specification for shielded, free and fixed connectors for data
transmission with frequencies up to 1 000 MHz (IEC 61076-3-110:2007)
Steckverbinder für elektronische Einrichtungen - Produktanforderungen - Teil 3-110:
Rechteckige Steckverbinder - Bauartspezifikation für geschirmte freie und feste
Steckverbinder für Datenübertragungen bis 1 000 MHz (IEC 61076-3-110:2007)
Connecteurs pour équipements électroniques - Exigences de produit - Partie 3-110:
Connecteurs rectangulaires - Spécification particuliere pour les fiches et les embases
écrantées pour la transmission de données a des fréquences jusqu'a 1 000 MHz (CEI
61076-3-110:2007)
Ta slovenski standard je istoveten z: EN 61076-3-110:2008
ICS:
31.220.10 9WLþLLQYWLþQLFHNRQHNWRUML Plug-and-socket devices.
Connectors
SIST EN 61076-3-110:2008 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

EUROPEAN STANDARD
EN 61076-3-110

NORME EUROPÉENNE
April 2008
EUROPÄISCHE NORM

ICS 31.220.10


English version


Connectors for electronic equipment -
Product requirements -
Part 3-110: Rectangular connectors -
Detail specification for shielded, free and fixed connectors
for data transmission with frequencies up to 1 000 MHz
(IEC 61076-3-110:2007)


Connecteurs pour équipements Steckverbinder für elektronische
électroniques - Einrichtungen -
Exigences de produit - Produktanforderungen -
Partie 3-110: Connecteurs rectangulaires - Teil 3-110: Rechteckige Steckverbinder -
Spécification particulière pour les fiches Bauartspezifikation für geschirmte freie
et les embases écrantées und feste Steckverbinder
pour la transmission de données für Datenübertragungen bis 1 000 MHz
à des fréquences jusqu'à 1 000 MHz (IEC 61076-3-110:2007)
(CEI 61076-3-110:2007)


This European Standard was approved by CENELEC on 2008-03-01. 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, 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

Central Secretariat: rue de Stassart 35, B - 1050 Brussels


© 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61076-3-110:2008 E

---------------------- Page: 2 ----------------------

EN 61076-3-110:2008 - 2 -
Foreword
The text of document 48B/1796/FDIS, future edition 1 of IEC 61076-3-110, prepared by SC 48B,
Connectors, of IEC TC 48, Electromechanical components and mechanical structures for electronic
equipment, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as
EN 61076-3-110 on 2008-03-01.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
(dop) 2008-12-01
national standard or by endorsement
– latest date by which the national standards conflicting
(dow) 2011-03-01
with the EN have to be withdrawn
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61076-3-110:2007 was approved by CENELEC as a European
Standard without any modification.
__________

---------------------- Page: 3 ----------------------

- 3 - EN 61076-3-110:2008
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

1)
- - Communication cables - Specifications EN 50289-1-14 -
for test methods -
Part 1-14: Electrical test methods - Coupling
attenuation or screening attenuation of
connecting hardware


1) 2)
IEC 60068-1 - Environmental testing - EN 60068-1 1994
Part 1: General and guidance


1) 2)
IEC 60068-2-38 - Environmental testing - EN 60068-2-38 1999
Part 2: Tests - Test Z/AD: Composite
temperature/humidity cyclic test


IEC 60352 Series Solderless connections EN 60352 Series


1) 2)
IEC 60352-2 - Solderless connections - EN 60352-2 2006
Part 2: Crimped connections - General
requirements, test methods and practical
guidance


1) 2)
IEC 60352-3 - Solderless connections - EN 60352-3 1994
Part 3: Solderless accessible insulation
displacement connections - General
requirements, test methods and practical
guidance


1) 2)
IEC 60352-4 - Solderless connections - EN 60352-4 1994
Part 4: Solderless non-accessible insulation
displacement connections - General
requirements, test methods and practical
guidance


1) 2)
IEC 60352-5 - Solderless connections - EN 60352-5 2008
Part 5: Press-in connections - General
requirements, test methods and practical
guidance


1) 2)
IEC 60352-6 - Solderless connections - EN 60352-6 1997
Part 6: Insulation piercing connections -
General requirements, test methods and
practical guidance


1) 2)
IEC 60352-7 - Solderless connections - EN 60352-7 2002
Part 7: Spring clamp connections - General
requirements, test methods and practical
guidance



1)
Undated reference.
2)
Valid edition at date of issue.

---------------------- Page: 4 ----------------------

EN 61076-3-110:2008 - 4 -
Publication Year Title EN/HD Year
IEC 60512 Series Connectors for electronic equipment - Tests EN 60512 Series
and measurements


1) 2)
IEC 60512-1-100 - Connectors for electronic equipment - Tests EN 60512-1-100 2006
and measurements -
Part 1-100: General - Applicable publications


IEC 60603-7 Series Connectors for electronic equipment - EN 60603-7 Series
Part 7: Detail specification for 8-way, shielded
free and fixed connectors with common
mating features, with assessed quality


1) 2)
IEC 60664-1 - Insulation coordination for equipment within EN 60664-1 2007
low-voltage systems -
Part 1: Principles, requirements and tests


IEC 61076-1 2006 Connectors for electronic equipment - Product EN 61076-1 2006
requirements -
Part 1: Generic specification


3) 3)
IEC 61076-3 200X Connectors for electronic equipment - Product EN 61076-3 200X
requirements -
Part 3: Rectangular connectors - Sectional
specification


IEC 61156 Series Multicore and symmetrical pair/quad cables - -
for digital communications


1)
IEC 61156-2 - Multicore and symmetrical pair/quad cables - -
for digital communications -
Part 2: Horizontal floor wiring - Sectional
specification


1)
IEC 61156-3 - Multicore and symmetrical pair/quad cables - -
for digital communications -
Part 3: Work area wiring - Sectional
specification


1)
IEC 61156-4 - Multicore and symmetrical pair/quad cables - -
for digital communications -
Part 4: Riser cables - Sectional specification


1)
IEC 61156-5 - Multicore and symmetrical pair/quad cables - -
for digital communications -
Part 5: Symmetrical pair/quad cables with
transmission characteristics up to 600 MHz -
Horizontal floor wiring - Sectional specification


1)
IEC 61156-6 - Multicore and symmetrical pair/quad cables - -
for digital communications -
Part 6: Symmetrical pair/quad cables with
transmission characteristics up to 600 MHz -
Work area wiring - Sectional specification


ISO/IEC 11801 2002 Information technology - Generic cabling for - -
customer premises


1) 2)
ISO 1302 - Geometrical Product Specifications (GPS) - EN ISO 1302 2002
Indication of surface texture in technical
product documentation


1)
ITU-T - Resistibility of telecommunication equipment - -
Recommendation installed in a telecommunications centre to
K.20 overvoltages and overcurrents



3)
At draft stage.

---------------------- Page: 5 ----------------------

- 5 - EN 61076-3-110:2008
Publication Year Title EN/HD Year
ITU-T 2000 Resistibility tests for telecommunication - -
Recommendation equipment exposed to overvoltages and
K.44 overcurrents - Basic Recommendation

---------------------- Page: 6 ----------------------

IEC 61076-3-110
Edition 1.0 2007-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE


Connectors for electronic equipment – Product requirements –
Part 3-110: Rectangular connectors – Detail specification for shielded, free and
fixed connectors for data transmission with frequencies up to 1 000 MHz

Connecteurs pour équipements électroniques – Exigences de produit –
Partie 3-110: Connecteurs rectangulaires – Spécification particulière pour les
fiches et les embases écrantées pour la transmission de données à des
fréquences jusqu'à 1 000 MHz

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
XA
CODE PRIX
ICS 31.220.10 ISBN 2-8318-9431-X

---------------------- Page: 7 ----------------------

– 2 – 61076-3-110 © IEC:2007
CONTENTS
FOREWORD.4
INTRODUCTION.6

1 General .8
1.1 Scope.8
1.2 Normative references .8
2 Technical information.10
2.1 Terms and definitions .10
2.2 Systems of levels.10
2.3 Complete connectors (pairs) .10
2.4 Fixed connectors .11
2.5 Free connectors .11
2.6 Classification into climate categories .11
2.7 Clearance and creepage distances .11
2.8 Current carrying capacity .11
2.9 IEC type designation.12
2.10 Marking .12
3 Dimensional information .13
3.1 General .13
3.2 Isometric view and common features .13
3.3 Mating information .13
3.4 Fixed connectors .15
3.5 Free connectors .18
3.6 Terminations .21
3.7 Mounting information .22
3.8 Gauges .22
4 Characteristics.30
4.1 General .30
4.2 Pin and pair grouping assignment .30
4.3 Climatic category.31
4.4 Electrical characteristics .31
4.5 Transmission characteristics.33
4.6 Mechanical characteristics.36
5 Test schedule .36
5.1 General .36
5.2 Test procedures and measuring methods.37
5.3 Preconditioning.37
5.4 Wiring and mounting of specimens .37
5.5 Test schedules .39

Annex A (normative) Gauging continuity procedure.47
Annex B (normative) Locking device mechanical operation – Test procedure and
requirements.50
Annex C (normative) High frequency transmission interoperability testing .51
Annex D (normative) Gauging requirements .53

---------------------- Page: 8 ----------------------

61076-3-110 © IEC:2007 – 3 –
Bibliography .54

Figure 1 – Isometric view, fixed 8 and 12 pole and free 8, 12 and 4 pole connectors .13
Figure 2 – Physical interface, contacts interface dimensions.14
Figure 3 – Physical interface, fixed connector, front view – Dimensions .16
Figure 4 – Physical interface, fixed connector, side view – Dimensions .16
Figure 5 – Fixed connector, board mounted – Example.18
Figure 6 – Physical interface, free connector – Dimensions .19
Figure 7 – Fixed connector “Go” gauge.23
Figure 8 – Fixed connector “No-Go” gauge – Width .23
Figure 9 – Fixed connector “No-Go” gauge – Height .24
Figure 10 – Fixed connector additional “Go” gauge.24
Figure 11 – Fixed connector additional “No-Go” gauges.25
Figure 12 – Free connector “Go” gauge .27
Figure 13 – Free connector “No-go” gauges .28
Figure 14 – Fixed connector pin and pair grouping assignment (front view of connector) .30
Figure 15 – Connector de-rating curve.32
Figure 16 – Arrangement for contact resistance measurement.38
Figure 17 – Arrangement for dynamic stress tests .39
Figure A.1 – Continuity gauge, isometric views .48
Figure A.2 – Continuity gauge .48
Figure A.3 – Continuity gauge insertion .49
Figure C.1 – Free test connector – Precision test fixture .51
Figure C.2 – Fixed test-connector – Precision test fixture .52

Table 1 – Physical interface, contacts interface – Dimensions.15
Table 2 – Fixed connector common dimensions.17
Table 3 – Common dimensions – Free connector .20
Table 4 – Fixed connector gauges – Dimensions .26
Table 5 – Free connector gauges – Dimensions .29
Table 6 – Climatic categories – Selected values .31
Table 7 – Minimum distances .31
Table 8 – Test group P.40
Table 9 – Test group AP.41
Table 10 – Test group BP.42
Table 11 – Test group CP .43
Table 12 – Test group DP .44
Table 13 – Test group EP.45
Table 14 – Test group FP.46
Table 15 – Test group GP .46
Table A.1 – Continuity gauge dimensions .49

---------------------- Page: 9 ----------------------

– 4 – 61076-3-110 © IEC:2007
INTERNATIONAL ELECTROTECHNICAL COMMISSION
––––––––––––

CONNECTORS FOR ELECTRONIC EQUIPMENT –
PRODUCT REQUIREMENTS –

Part 3-110: Rectangular connectors – Detail specification for shielded,
free and fixed connectors for data transmission
with frequencies up to 1 000 MHz


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 61076-3-110 has been prepared by subcommittee 48B: Connectors,
of IEC technical committee 48: Electromechanical components and mechanical structures for
electronic equipment.
This International Standard cancels and replaces IEC/PAS 61076-3-110 (2002).

---------------------- Page: 10 ----------------------

61076-3-110 © IEC:2007 – 5 –
The text of this standard is based on the following documents:
FDIS Report on voting
48B/1796/FDIS 48B/1827/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.
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.

---------------------- Page: 11 ----------------------

– 6 – 61076-3-110 © IEC:2007
INTRODUCTION
This part of IEC 61076 describes connectors according to IEC 61076-3 series connectors
requirements.
The connectors are similar to and compatible with IEC 60603-7 series connectors.
The IEC 61076-3-110 free connector can be used in data communication cabling systems with
the IEC 60603-7-7 and IEC 60603-7-71 fixed connector.
The IEC 61076-3-110 connector includes up to 12 contacts, including up to 8 contacts
(1,2,3,4,5,6,7,8) that are similar to a standard IEC 60603-7 series connector. In addition, the
IEC 61076-3-110 connector includes up to 4 additional contacts (6’,3’,4’,5’) located on the
opposite side from the original contact positions of a basic IEC 60603-7 series connector.
For use in high speed communications cabling systems, IEC 60603-7-7 and IEC 60603-7-71
fixed connectors include a switch or other means to engage these two different sets of four
contacts to enable backward compatibility for transmission performance. In this application the
IEC 61076-3-110 free connector simply uses 8 contacts (1,2,3’,4’,5’,6’,7,8) and no switch.
The IEC 61076-3-110 fixed connector includes a board mounted style in addition to the cable
mounted style.
The complete requirements for the connectors described in this specification correspond to this
detail specification and the current issues of IEC 61076-3 and IEC 60603-7 series, which are
referenced herein accordingly.

---------------------- Page: 12 ----------------------

61076-3-110 © IEC:2007 – 7 –

IEC SC 48B: CONNECTORS IEC 61076-3-110

Specification available from:
IEC Central Office or from the addresses shown on the inside cover

Detail specification for two-part
connector used in:

− high speed communications
applications up to 1 000 MHz
− up to 6 balanced contact pairs (up
to 12 contacts)
− compatible with IEC 60603-7
series connectors 4 balanced
contact pairs (1,2,3,4,5,6,7,8) up
to 500 MHz and
4 balanced contact pairs
(1,2,3’,4’,5’,6’,7,8) of
IEC 60603-7-7 up to 600 MHz and
IEC 60603-7-71 up to 1 000 MHz
− intended for inside-building
cabling systems
Fixed connector: cable mount or for
mounting on printed boards

Free connector: cable mount only
Performance level(s): 1, 2
Assessment level(s): not specified
IEC  2276/07
Reference data: not available

---------------------- Page: 13 ----------------------

– 8 – 61076-3-110 © IEC:2007
CONNECTORS FOR ELECTRONIC EQUIPMENT –
PRODUCT REQUIREMENTS –

Part 3-110: Rectangular connectors – Detail specification for shielded,
free and fixed connectors for data transmission
with frequencies up to 1 000 MHz



1 General
1.1 Scope
This part of IEC 61076 is a detail specification, forming part of IEC 61076-3, for IEC 61076-3-
110, two-part connector.
It covers mechanical and environmental requirements, and electrical transmission
requirements for frequencies up to 1 000 MHz.
These connectors can be used as category 7 connectors in class F cabling systems, as
1
specified in ISO/IEC 11801:2002.
2
The connectors are intermateable with IEC 60603-7-X series connectors.
3
The connectors are interoperable with IEC 60603-7-7 and IEC 60603-7-71 connectors.
4
The connectors are backward compatible with IEC 60603-7-7 and IEC 60603-7-71 connectors.
1.2 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 60068-1, Environmental testing – Part 1: General and guidance
IEC 60068-2-38, Environmental testing – Part 2-38: Tests − Test Z/AD: Composite
temperature/ humidity cyclic test
IEC 60352 (all parts), Solderless connections
IEC 60352-2, Solderless connections – Part 2: Crimped connections − General requirements,
test methods and practical guidance
IEC 60352-3, Solderless connections – Part 3: Solderless accessible insulation displacement
connections − General requirements, test methods and practical guidance
IEC 60352-4, Solderless connections – Part 4: Solderless non-accessible insulation displace-
ment connections − General requirements, test methods and practical guidance
___________
1
 ISO/IEC 11801 contains various ‘category’ designations corresponding to various frequency ranges.
2
 Intermateability definition and requirements are given in 2.2.2.
3
 Interoperability definition and requirements are given in 2.2.3.
4
 Backward compatibility definition and requirements are given in
...