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EUROPEAN STANDARD
EN 60603-7-7
NORME EUROPÉENNE
July 2006
EUROPÄISCHE NORM
ICS 31.220.10 Supersedes EN 60603-7-7:2002

English version
Connectors for electronic equipment
Part 7-7: Detail specification for 8-way, shielded,
free and fixed connectors for data transmission
with frequencies up to 600 MHz
(IEC 60603-7-7:2006)
Connecteurs pour équipements Steckverbinder für elektronische
électroniques Einrichtungen
Partie 7-7: Spécification particulière Teil 7-7: Bauartspezifikation
pour les fiches et les embases blindées für geschirmte freie und feste
à 8 voies pour la transmission Steckverbinder, 8-polig, für
des données à des fréquences Datenübertragungen bis 600 MHz
jusqu'à 600 MHz (IEC 60603-7-7:2006)
(CEI 60603-7-7:2006)
This European Standard was approved by CENELEC on 2006-07-01. 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, 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

© 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60603-7-7:2006 E
Foreword
The text of document 48B/1664/FDIS, future edition 2 of IEC 60603-7-7, 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 60603-7-7 on 2006-07-01.
This European Standard supersedes EN 60603-7-7: 2002.
The following changes have been made:
– Many minor detail changes concerning the harmonization of this document, its specifications and its
test procedures with those contained in the other IEC/EN 60603-7 series standards.
– Significant performance improvements have been made to insertion loss and return loss, now
specified to 1 000 MHz, for special applications (ISO/IEC 15018).
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
(dop) 2007-04-01
national standard or by endorsement
– latest date by which the national standards conflicting
(dow) 2009-07-01
with the EN have to be withdrawn
The International Electrotechnical Commission (IEC) and CENELEC draw attention to the fact that it is
claimed that compliance with this document may involve the use of a patent concerning the switch given
in 2.2.2.
The IEC and CENELEC take no position concerning the evidence, validity and scope of this patent right.
The holder of this patent right has assured the IEC that he/she is willing to negotiate licences under
reasonable and non-discriminatory terms and conditions with applicants throughout the world. In this
respect, the statement of the holder of this patent right is registered with the IEC. Information may be
obtained from:
Nexans
16, rue de Monceau
75008 Paris
France
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights other than those identified above. IEC and CENELEC shall not be held responsible for
identifying any or all such patent rights.
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 60603-7-7:2006 was approved by CENELEC as a European
Standard without any modification.
__________
- 3 - EN 60603-7-7:2006
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)
IEC 60050-581 - International Electrotechnical Vocabulary - -
(IEV)
Chapter 581: Electromechanical components
for electronic equipment
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

1)
IEC 60169-16 - Radio-frequency connectors - -
Part 16: R.F. coaxial connectors with inner
diameter of outer conductor 7 mm (0,276 in)
with screw coupling - Characteristic
impedance 50 ohms (75 ohms) (Type N)

1) 2)
IEC 60352-2 - Solderless connections EN 60352-2 2006
Part 2: Solderless 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 2001
Part 5: Press-in connections - General + A1 2003
requirements, test methods and practical
guidance
1)
Undated reference.
2)
Valid edition at date of issue.

Publication Year Title EN/HD Year
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
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

1) 2)
IEC 60603-1 - Connectors for frequencies below 3 MHz for EN 60603-1 1998
use with printed boards
Part 1: Generic specification - General
requirements and guide for the preparation of
detail specifications, with assessed quality

1) 2)
IEC 60603-7 - Connectors for frequencies below 3 MHz for EN 60603-7 1997
use with printed boards
Part 7: Detail specification for connectors,
8-way, including fixed and free connectors
with common mating features, with assessed
quality
1)
IEC 60603-7-5 - Connectors for electronic equipment - -
Part 7-5: Detail specification for 8-way,
shielded, free and fixed connectors, for data
transmissions with frequencies up to
250 MHz
1) 2)
IEC 60664-1 (mod) - Insulation coordination for equipment within EN 60664-1 2003
low-voltage systems
Part 1: Principles, requirements and tests

1) 2)
IEC 61076-1 - Connectors for electronic equipment - EN 61076-1 2006
Product requirements
Part 1: Generic specification
IEC 61156 Series Multicore and symmetrical pair/quad cables - -
for digital communications
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 G.117 - Transmission aspects of unbalance about - -
earth
1)
ITU-T K.20 - Resistibility of telecommunication equipment - -
installed in a telecommunications centre to
overvoltages and overcurrents
- 5 - EN 60603-7-7:2006
Publication Year Title EN/HD Year
1)
ITU-T K.44 - Resistibility tests for telecommunication - -
equipment exposed to overvoltages and
overcurrents - Basic Recommendation

1)
ITU-T O.9 - Measuring arrangements to assess the - -
degree of unbalance about earth

1)
- - Communication cables - Specifications for EN 50289-1-14 -
test methods
Part 1-14: Electrical test methods - Coupling
attenuation or screening attenuation of
connecting hardware
INTERNATIONAL IEC
STANDARD 60603-7-7
Second edition
2006-06
Connectors for electronic equipment –
Part 7-7:
Detail specification for 8-way, shielded,
free and fixed connectors, for data
transmissions with frequencies up to 600 MHz

 IEC 2006  Copyright - all rights reserved
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 the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale XC
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue

– 2 – 60603-7-7  IEC:2006(E)
CONTENTS
FOREWORD.6
INTRODUCTION.8

1 General .10
1.1 Scope.10
1.2 Normative references .10
2 Technical information.11
2.1 Terms and definitions .11
2.2 Information on application.11
2.2.1 Transmission performance categories.12
2.2.2 Complete connectors (pairs) .12
2.2.3 Interchangeability level.12
2.2.4 Shielding/grounding .13
2.2.5 Terminations.13
2.3 IEC type designation.13
3 Dimensional information .15
3.1 General .15
3.2 Isometric view .15
3.3 Common features .16
3.4 Engagement (mating) information .16
3.5 Fixed connectors .18
3.6 Free connectors .21
4 Terminations.23
4.1 Referenced termination types .23
4.1.1 Insulation displacement terminations.23
4.1.2 Crimp terminations.23
4.1.3 Insulation piercing terminations.23
4.1.4 Compliant pin (press-in).23
4.1.5 Spring clamp terminations.23
4.1.6 Non-referenced termination types .23
4.1.7 Solder terminations.24
4.2 Switch function .24
4.2.1 Basic switch function .24
4.2.2 Additional switch function.24
4.3 Accessories.24
4.4 Mounting information for fixed connectors .24
4.4.1 Hole pattern on printed boards .24
4.4.2 Mounting on panels.24
4.5 Mounting information for free connectors .24
5 Gauges.24
5.1 Fixed connectors .24
5.2 Free connectors .29
5.3 Probes.33
5.4 Contact resistance gauge .33
5.5 Test panel (for voltage proof test) .33

60603-7-7  IEC:2006(E) – 3 –
6 Characteristics.33
6.1 General .33
6.2 Pin and pair grouping assignment .34
6.3 Climatic category.35
6.4 Electrical characteristics .35
6.4.1 Creepage and clearance distance .35
6.4.2 Voltage proof .36
6.4.3 Current-carrying capacity .36
6.4.4 Initial contact resistance .37
6.4.5 Input to output d.c. resistance .37
6.4.6 Input to output d.c. resistance unbalance .37
6.4.7 Insulation resistance .37
6.4.8 Transfer impedance.38
6.5 Transmission characteristics.38
6.5.1 Insertion loss .38
6.5.2 Return loss .38
6.5.3 Propagation delay .39
6.5.4 Delay skew .39
6.5.5 NEXT loss .39
6.5.6 Power sum NEXT loss (for information only) .39
6.5.7 FEXT loss.39
6.5.8 Power sum FEXT loss (for information only).39
6.5.9 Transverse conversion loss.40
6.5.10 Transverse conversion transfer loss.40
6.5.11 Coupling attenuation .40
6.6 Mechanical characteristics.40
6.6.1 Mechanical operation .40
6.6.2 Effectiveness of connector coupling devices.41
6.6.3 Insertion and withdrawal forces .41
7 Tests and test schedule .41
7.1 General .41
7.2 Test procedures and measuring methods.41
7.3 Preconditioning.41
7.4 Wiring and mounting of specimens .42
7.4.1 Wiring.42
7.4.2 Mounting.42
7.5 Contact resistance measurement arrangement and procedure .42
7.5.1 Arrangement for contact resistance measurement.42
7.5.2 Test procedure for contact resistance measurement .43
7.6 Arrangement for dynamic stress tests (test phase CP1) .43
7.7 Test schedules .43
7.7.1 Basic (minimum) test schedule.44
7.7.2 Full test schedule.44

Annex A (normative) Gauging continuity procedure.53
Annex B (normative) Locking device mechanical operation – Test procedure and
requirements.56
Annex C (normative) High frequency (category 7) transmission interoperability testing .57

– 4 – 60603-7-7  IEC:2006(E)
Annex D (normative) General requirements for the measurement set-up.59
Annex E (normative) Insertion loss .64
Annex F (normative) Return loss .66
Annex G (normative) Near end cross talk (NEXT) .68
Annex H (normative) Far end cross talk (FEXT).70
Annex I (normative) Transfer impedance .72
Annex J (normative) Transverse conversion loss (TCL) and transverse conversion
transfer loss (TCTL) .78
Annex K (normative) Termination of balun .81
Annex L (normative) Gauging requirements .82

Figure 1 – Isometric view, example fixed and free connector, free connector shown with
both switch positions .15
Figure 2 – Contact interface dimensions with terminated free connector .16
Figure 3 – Physical interface, fixed connector, front view .18
Figure 4 – Physical interface, fixed connector, side view.19
Figure 5 – Physical interface, free connector .21
Figure 6 – “Go” gauge .25
Figure 7 – Fixed connector additional go gauge.25
Figure 8 – “No-go” gauge width .26
Figure 9 – “No-go” gauge height.26
Figure 10 – Fixed connector additional no-go gauges .27
Figure 11 – “No-go” gauges.29
Figure 12 – Free connector additional no-go gauges.30
Figure 13 – “Go” gauge .31
Figure 14 – Free connector additional go gauges.32
Figure 15 – Fixed connector pin and pair grouping assignment (front view of connector) .34
Figure 16 – Basic switch function .34
Figure 17 – Additional switch function.35
Figure 18 – Connector de-rating curve.36
Figure 19 – Arrangement for contact resistance measurement.42
Figure 20 – Arrangement for dynamic stress tests .43
Figure A.1 – Gauge.54
Figure A.2 – Gauge insertion.55
Figure C.1 – Free connector precision test fixture.57
Figure C.2 – Fixed connector precision test fixture .58
Figure D.1 – 180° hybrid used as a balun .60
Figure D.2 – Calibration of reference loads.61
Figure D.3 – Resistor load.62
Figure D.4 – Screened pyramid .63
Figure D.5 – Definition of reference planes.63
Figure E.1 – Calibration.64
Figure E.2 – Measuring set-up.65

60603-7-7  IEC:2006(E) – 5 –
Figure G.1 – NEXT measurement differential and common mode terminations.68
Figure H.1 – FEXT measurement differential and common mode terminations .70
Figure I.1 – Preparation of test specimen .73
Figure I.2 – Triaxial test set-up.74
Figure I.3 – Impedance matching for R < 50 Ω .75
Figure I.4 – Impedance matching for R >50 Ω .76
Figure J.1 – TCL measurement .78
Figure J.2 – TCTL measurement .79
Figure K.1 – Balanced attenuator for balun centre tap grounded .81
Figure K.2 – Balanced attenuator for balun centre tap open .81

Table 1 – Physical interface, contacts interface .17
Table 2 – Fixed connector common dimensions.20
Table 3 – Common dimensions – free connector .22
Table 4 – Fixed connector gauge dimensions .28
Table 5 – Fixed connector, additional, gauge dimensions .28
Table 6 – Free connector NO-GO gauge dimensions .31
Table 7 – Free connector GO gauges dimensions.32
Table 8 – Free connector additional gauges dimensions .33
Table 9 – Climatic categories – selected values.35
Table 10 – Minimum distances .36
Table 11 – Test group P.44
Table 12 – Test group AP.45
Table 13 – Test group BP.47
Table 14 – Test group CP .48
Table 15 – Test group DP .49
Table 16 – Test group EP.50
Table 17 – Test group FP.51
Table 18 – Test group GP .52
Table A.1 – Continuity gauge dimensions .55
Table D.1 – Test balun performance characteristics .61
Table F.1 – Uncertainty band of return loss measurement at frequencies below 100 MHz .67
Table F.2 – Uncertainty band of return loss measurement at frequencies above
100 MHz .67

– 6 – 60603-7-7  IEC:2006(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
––––––––––––
CONNECTORS FOR ELECTRONIC EQUIPMENT –

Part 7-7: Detail specification for 8-way, shielded, free and fixed
connectors, for data transmissions with frequencies up to 600 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.
The International Electrotechnical Commission (IEC) draws attention to the fact that it is claimed that compliance
with this document may involve the use of a patent concerning the switch given in 2.2.2.
The IEC takes no position concerning the evidence, validity and scope of this patent right.
The holder of this patent right has assured the IEC that he/she is willing to negotiate licences under reasonable and
non-discriminatory terms and conditions with applicants throughout the world. In this respect, the statement of the
holder of this patent right is registered with IEC. Information may be obtained from:
Nexans
16, rue de Monceau
75008 Paris
France
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights
other than those identified above. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60603-7-7 has been prepared by subcommittee 48B: Connectors, of
IEC technical committee 48: Electromechanical components and mechanical structures for
electronic equipment.
This second edition cancels and replaces the first edition published in 2002. This edition
constitutes a technical revision.

60603-7-7  IEC:2006(E) – 7 –
The following changes to the first edition have been made in this second edition:
• Many minor detail changes concerning the harmonization of this document, its
specifications and its test procedures with those contained in the other IEC 60603-7 series
standards.
• Significant performance improvements have been made to insertion loss and return loss,
now specified to 1 000 MHz, for special applications (ISO/IEC 15018).
The text of this standard is based on the following documents:
FDIS Report on voting
48B/1664/FDIS 48B/1691/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.
A list of all parts of IEC 60603 series, under the general title Connectors for frequencies below
3 MHz for use with printed 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.
A bilingual version of this publication may be issued at a later date.

– 8 – 60603-7-7  IEC:2006(E)
INTRODUCTION
This detail specification describes connectors according to IEC 60603-7 series connectors
requirements.
This detail specification describes connectors that are similar to and backward compatible with
IEC 60603-7 series connectors. Backward compatibility definition and requirements are given
in 2.2.
The complete requirements for the connectors described herein correspond to this detail
specification and the current issues of IEC 60603-7 series, which are referenced herein
accordingly.
60603-7-7  IEC:2006(E) – 9 –
CONNECTORS FOR ELECTRONIC EQUIPMENT –

Part 7-7: Detail specification for 8-way, shielded, free and fixed
connectors, for data transmissions with frequencies up to 600 MHz

IEC SC 48B: LF connectors IEC 60603-7-7

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

Detail specification for two-part
cable to cable connector used in:

- high speed
communications
applications up to 600 MHz
- 4 balanced contact pairs (8
contacts)
- compatible with
IEC 60603-7 series
connectors
- intended for inside-building
cabling systems
Typical construction is for cable
mount for use in communication
cabling systems
Performance level(s): 1, 2
Assessment level(s): not applicable

IEC  1068/06
Reference data: not applicable

Information on the availability of components qualified to this detail specification is not covered.

– 10 – 60603-7-7  IEC:2006(E)
1 General
1.1 Scope
This part of IEC 60603, which is part of the IEC 60603-7 series, covers 8 way connectors, up to
4 pairs, and specifies mechanical and environmental requirements, and electrical transmission
requirements for frequencies up to 600 MHz. These connectors are typically used as
category 7 connectors in class F cabling systems specified in IS0/IEC 11801:2002.
The connectors are intermateable with IEC 60603-7-X series connectors.
The connectors are interoperable with IEC 60603-7-X series connectors.
The connectors are backward compatible with IEC 60603-7-X series 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 60050(581), International Electrotechnical Vocabulary (IEV) – Chapter 581: Electro-
mechanical components for electronic equipment
IEC 60068-1, Environmental testing – Part 1: General and guidance
IEC 60068-2-38, Environmental testing – Part 2: Tests – Test Z/AD: Composite temperature/
humidity cyclic test
IEC 60169-16, Radio-frequency connectors – Part 16: R.F. coaxial connectors with inner
diameter of outer conductor 7 mm (0.276 in) with screw coupling – Characteristic impedance
50 ohms (75 ohms) (Type N)
IEC 60352-2, Solderless connections – Part 2: Solderless 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
IEC 60352-5, Solderless connections – Part 5: Press-in connections – General requirements,
test methods and practical guidance
IEC 60352-6, Solderless connections – Part 6: Insulation piercing connections – General
requirements, test methods and practical guidance
IEC 60352-7, Solderless connections – Part 7: Spring clamp connections – General
requirements, test methods and practical guidance
IEC 60512 (all parts), Connectors for electronic equipment – Tests and measurements
___________
ISO/IEC 11801 contains various ‘category’ designations corresponding to various frequency ranges.
Intermateability definition and requirements are given in 2.2.
Interoperability definition and requirements are given in 2.2.
Backward compatibility definition and requirements are given in 2.2.

60603-7-7  IEC:2006(E) – 11 –
IEC 60512-1-100, Connectors for electronic equipment – Tests and measurements – Part 1-
100: General – Applicable publications
IEC 60603-1, Connectors for frequencies below 3 MHz for use with printed boards – Part 1:
Generic specification – General requirements and guide for the preparation of detail
specifications, with assessed quality
IEC 60603-7, Connectors for frequencies below 3 MHz for use with printed boards – Part 7:
Detail specification for connectors, 8-way, including fixed and free connectors with common
mating features
IEC 60603-7-5, Connectors for electronic equipment – Part 7-5: Detail specification for 8-way,
shielded, free and fixed connectors, for data transmissions with frequencies up to 250 MHz
IEC 60664-1, Insulation coordination for equipment within low-voltage systems – Part 1:
Principles, requirements and tests
IEC 61076-1, Connectors for electronic equipment – Product requirements – Part 1: Generic
specification
IEC 61156 (all parts), Multicore and symmetrical pair/quad cables for digital communications
ISO/IEC 11801:2002, Information technology – Generic cabling for customer premises
ISO 1302, Geometrical Product Specifications (GPS) – Indication of surface texture in technical
product documentation
ITU-T G.117, Transmission aspects of unbalance about earth
ITU-T K.20, Resistibility of telecommunication equipment installed in a telecommunications
centre to overvoltages and overcurrents
ITU-T K.44, Resistibility tests for telecommunication equipment exposed to overvoltages and
overcurrents – Basic recommendation
ITU-T O.9, Measuring arrangements to assess the degree of unbalance about earth
EN 50289-1-14, Communication Cables – Specifications for Test Methods – Part 1-14:
Electrical Test Methods – Coupling attenuation or screening attenuation of connecting
hardware
2 Technical information
This detail specification covers connectors intended for use in inside-building communication
cabling systems.
2.1 Terms and definitions
For the purposes of this part of IEC 60603, the terms and definitions given in 2.1 of
IEC 61076-1 and IEC 60050(581) apply. Some applicable terms are also covered in
IEC 60512-1.
2.2 Information on application
These connectors are interoperable with lower frequency or “category” IEC 60603-7 series
connectors.
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To be published.
– 12 – 60603-7-7  IEC:2006(E)
2.2.1 Transmission performance categories
In this detail specification, the term “category”, when used in reference to transmission
performance, refers to those categories defined by ISO/IEC 11801:2002.
2.2.2 Complete connectors (pairs)
The complete connectors engage a total of 8 contacts.
The IEC 60603-7-7 connector includes the 8 contacts (1,2,3,4,5,6,7,8) of a standard
IEC 60603-7 series connector. In addition, the IEC 60603-7-7 connector includes 4 alternative
contacts (6’,3’,4’,5’) located on the opposite side to the original contacts of a basic
IEC 60603-7 series connector.
A switch is employed within the connectors to engage transmission paths between 4 pairs of
terminations and the respective 4 out of 6 pairs of contacts, which operate above or below
250 MHz, see 4.2.
Switch operation is implemented by means of moving switch actuator protrusions on the free
connector (see 2.2.2.1 and 2.2.2.2).
2.2.2.1 Fixed connectors
IEC 60603-7-7 fixed connectors include a rear switch actuator and side channels.
These features accommodate the switch actuator protrusions on IEC 60603-7-7 free
connectors.
The fixed connector (r
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