IEC 60603-7-5:2010

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 60603-7-5:2010 covers 8-way, shielded, free and fixed connectors and references dimensional, mechanical, electrical and environmental characteristics and tests in IEC 60603-7 and IEC 60603-7-1, and specifies electrical transmission requirements for frequencies up to 250 MHz. These connectors are typically used as category 6 connectors in class E cabling systems specified in ISO/IEC 11801. These connectors are intermateable and interoperable with other IEC 60603-7 series connectors as defined in Clause 2 of IEC 60603-7. These connectors are backward compatible with other IEC 60603-7 series connectors.

Connecteurs pour équipements électroniques - Partie 7-5: Spécification particulière pour les fiches et les embases blindées à 8 voies pour la transmission de données à des fréquences jusqu'à 250 MHz

La CEI 60603-7-5:2010 couvre les fiches et les embases blindées à 8 voies et renvoie à la CEI 60603-7 et à la CEI 60603-7-1 pour les caractéristiques et les essais dimensionnels, mécaniques, électriques et d'environnement et elle spécifie les exigences de transmission électrique pour des fréquences jusqu'à 250 MHz. Ces connecteurs sont normalement utilisés comme connecteurs de catégorie 6 dans les systèmes de câblage de classe E spécifiés dans l'ISO/CEI 11801. Ces connecteurs sont accouplables et interopérables avec les autres connecteurs de la série CEI 60603-7 comme cela est défini à l'article 2 de la CEI 60603-7. Ces connecteurs offrent une compatibilité amont avec les autres connecteurs de la série CEI 60603-7.

General Information

• Status: Published
• Publication Date: 25-Apr-2010
• ICS: 31.200 - Integrated circuits. Microelectronics
• ICS: 31.220.10 - Plug-and-socket devices. Connectors
• Technical Committee: SC 48B - Electrical connectors
• Current Stage: PPUB - Publication issued
• Start Date: 26-Apr-2010
• Completion Date: 15-May-2010

Relations

• Revises: IEC 60603-7-5:2007 - 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
• Effective Date: 05-Sep-2023

Overview

IEC 60603-7-5:2010 is an international standard published by the International Electrotechnical Commission (IEC). It specifies the detailed requirements for 8-way, shielded, free and fixed connectors designed for data transmission frequencies up to 250 MHz. These connectors are commonly applied in category 6 cabling systems compliant with ISO/IEC 11801 standards, primarily serving in high-performance data communication networks.

This standard builds upon and references the basic dimensional, mechanical, electrical, and environmental parameters outlined in IEC 60603-7 and IEC 60603-7-1. It ensures that connectors compliant with this specification are intermateable, interoperable, and backward compatible within the IEC 60603-7 family of connectors, maintaining system integrity and reliability in various electronic equipment.

Key Topics

• Scope and Compatibility
  IEC 60603-7-5 governs 8-way shielded connectors for frequencies up to 250 MHz, typical within Category 6/Class E cabling. The connectors meet strict dimensional and electrical transmission requirements and maintain backward compatibility with earlier IEC 60603-7 series connectors.

• Transmission Performance
  The standard defines critical electrical characteristics necessary for high-frequency data transmission up to 250 MHz, including:

  • Insertion loss: Measures signal attenuation.
  • Return loss: Reflects signal reflections due to impedance mismatches.
  • Propagation delay and delay skew: Timing parameters critical for data integrity.
  • Near-end crosstalk (NEXT) and far-end crosstalk (FEXT): Evaluate interference between pairs.
  • Transverse conversion loss and transfer loss: Assess shielding effectiveness and signal isolation.

• Mechanical & Environmental Requirements
  Connectors must meet mechanical stability and environmental conditions referenced from IEC 60603-7 and IEC 60603-7-1. This includes tests for vibration, contact resistance, and preconditioning to ensure durability in real-world installations.

• Testing Procedures
  Detailed test methods for verifying electrical and mechanical performance are specified with references to IEC 60512 series. Both basic and full test schedules ensure quality assurance during manufacturing and deployment.

Applications

• High-Speed Data Networks
  These connectors are critical components within structured cabling systems for enterprise networks, supporting Gigabit Ethernet and other high-speed data standards.

• Telecommunications Equipment
  Used extensively in telecom infrastructure where reliable shielded connectors are needed for noise reduction and signal integrity at frequencies up to 250 MHz.

• Industrial and Commercial Electronics
  Suitable for electronic equipment requiring robust connector solutions with guaranteed transmission performance in challenging electromagnetic environments.

• Backward Compatibility in Upgrades
  Enables seamless system upgrades and expansions by maintaining compatibility with existing IEC 60603-7 connectors of lower frequency categories.

Related Standards

• IEC 60603-7: Base standard for 8-way unshielded connectors for data transmissions up to 100 MHz-provides foundational mechanical and dimensional requirements.
• IEC 60603-7-1: Detail specification for shielded free and fixed connectors up to 100 MHz-complements IEC 60603-7 and provides shielding specifics.
• ISO/IEC 11801: International standard for generic cabling systems, defining categories such as Category 6/Class E cabling which these connectors support.
• IEC 60512 Series: Comprehensive test methods related to electrical continuity, contact resistance, and signal integrity vital for connector evaluation.
• IEC 61156 Series: Pertains to multi-core symmetrical cables used alongside IEC 60603-7-5 connectors in digital communication systems.

---

By adhering to IEC 60603-7-5:2010, manufacturers and system designers ensure high-quality, reliable, and interoperable connectors essential for modern electronic equipment that operates at data transmission frequencies up to 250 MHz. This standard plays a crucial role in enabling efficient and error-free communication in structured cabling environments worldwide.

Standards Content (Sample)

IEC 60603-7-5 ®
Edition 2.0 2010-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Connectors for electronic equipment –
Part 7-5: Detail specification for 8-way, shielded, free and fixed connectors,
for data transmission with frequencies up to 250 MHz

Connecteurs pour équipements électroniques –
Partie 7-5: Spécification particulière pour les fiches et les embases blindées
à 8 voies pour la transmission de données à des fréquences jusqu'à 250 MHz

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IEC 60603-7-5 ®
Edition 2.0 2010-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Connectors for electronic equipment –
Part 7-5: Detail specification for 8-way, shielded, free and fixed connectors,
for data transmission with frequencies up to 250 MHz

Connecteurs pour équipements électroniques –
Partie 7-5: Spécification particulière pour les fiches et les embases blindées
à 8 voies pour la transmission de données à des fréquences jusqu'à 250 MHz

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
M
CODE PRIX
ICS 31.220.10 ISBN 978-2-88910-232-7
– 2 – 60603-7-5 © IEC:2010
CONTENTS
FOREWORD.3
INTRODUCTION.5
1 General .6
1.1 Scope.6
1.2 Normative references .6
2 Terms and definitions .7
3 Common features and isometric view .7
4 Cable terminations and internal connections – Fixed and free connectors .7
5 Gauges .7
6 Characteristics .7
6.1 General .7
6.2 Pin and pair grouping assignment. .7
6.3 Classification into climatic category.7
6.4 Electrical characteristics.7
6.5 Transmission characteristics .7
6.5.1 General .7
6.5.2 Insertion loss.8
6.5.3 Return loss .8
6.5.4 Propagation delay .8
6.5.5 Delay skew.8
6.5.6 NEXT .8
6.5.7 Power sum NEXT (for information only) .8
6.5.8 FEXT.9
6.5.9 Power sum FEXT (for information only) .9
6.5.10 Transverse conversion loss .9
6.5.11 Transverse conversion transfer loss .9
6.6 Mechanical.9
7 Tests and test schedule.10
7.1 General .10
7.2 Arrangement for contact resistance test: .10
7.3 Arrangement for vibration test .10
7.4 Test procedures and measuring methods .10
7.5 Preconditioning .10
7.6 Wiring and mounting of specimens .10
7.6.1 Wiring.10
7.6.2 Mounting .10
7.7 Test schedules .10
7.7.1 Basic (minimum) test schedule .10
7.7.2 Full test schedule .10
Bibliography.13

Table 1 – Test Group EP .11

60603-7-5 © IEC:2010 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CONNECTORS FOR ELECTRONIC EQUIPMENT –

Part 7-5: Detail specification for 8-way, shielded, free and fixed
connectors, for data transmission with frequencies up to 250 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,
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in the subject dealt with may participate in this preparatory work. International, governmental and non-
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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
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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
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between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
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5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
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6) All users should ensure that they have the latest edition of this publication.
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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 60603-7-5 has been prepared by subcommittee 48B: Connectors,
of IEC technical committee 48: Electromechanical components and mechanical structures for
electronic equipment.
This second edition of IEC 60603-7-5 cancels and replaces the first edition issued in 2007,
and constitutes a technical revision.
The main technical changes with regard to the previous edition are as follows:
– Removal of test methods that are now referenced to IEC 60512-26-100.
– Addition of TCL and TCTL requirements.
– Removal of the electrical, mechanical, dimensional, environmental conditioning tests by
reference to IEC 60603-7.
– 4 – 60603-7-5 © IEC:2010
The text of this standard is based on the following documents:
FDIS Report on voting
48B/2138/FDIS 48B/2179/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 electronic
equipment, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability 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.
60603-7-5 © IEC:2010 – 5 –
INTRODUCTION
IEC 60603-7 is the base specification of the whole series. Subsequent specifications do not
duplicate information given in the base document, but list only additional requirements. For
complete specification regarding a component of a higher number document all lower
numbered documents shall be considered as well. The following diagram shows the
interrelation of the documents:

Unshielded Shielded
IEC 60603-7 IEC 60603-7-1
3 MHz
100 MHz
IEC 60603-7-2 IEC 60603-7-3
IEC 60603-7-4 IEC 60603-7-5
250 MHz
IEC 60603-7-41 IEC 60603-7-51
500 MHz
600 MHz
Indicates reference for IEC 60603-7-7
dimensions, mechanical and
electrical characteristics,
tests and test schedules.
IEC 60603-7-71
1 000 MHz
Indicates reference for
transmission performance
(backward compatibility)
– 6 – 60603-7-5 © IEC:2010
CONNECTORS FOR ELECTRONIC EQUIPMENT –

Part 7-5: Detail specification for 8-way, shielded, free and fixed
connectors, for data transmission with frequencies up to 250 MHz

1 General
1.1 Scope
This part of IEC 60603 covers 8-way, shielded, free and fixed connectors and references
dimensional, mechanical, electrical and environmental characteristics and tests in
IEC 60603-7 and IEC 60603-7-1, and specifies electrical transmission requirements for
frequencies up to 250 MHz. These connectors are typically used as category 6 connectors in
class E cabling systems specified in ISO/IEC 11801.
These connectors are intermateable and interoperable with other IEC 60603-7 series
connectors as defined in Clause 2 of IEC 60603-7.
These connectors are backward compatible with other IEC 60603-7 series connectors.
NOTE Transmission performance categories: in this IEC standard, the term “category”, when used in reference to
transmission performance, refers to those categories defined by ISO/IEC 11801.
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 60512-1-100, Connectors for electronic equipment – Part 1-100: General – Applicable
publications
IEC 60512-2-1, Connectors for electronic equipment – Tests and measurements – Part 2-1:
Electrical continuity and contact resistance tests – Test 2a: Contact resistance – Millivolt level
method
IEC 60512-27-100, Connectors for electronic equipment – Tests and measurements – Part
27-100: Signal integrity tests up to 500 MHz on IEC 60603-7 series connectors – Tests 27a to
27g
IEC 60603-7:2008, Connectors for electronic equipment – Part 7: Detail specification for 8-
way, unshielded, free and fixed connectors
IEC 60603-7-1:2009, Connectors for electronic equipment – Part 7-1: Detail specification for
8-way, shielded, free and fixed connectors
IEC 61156 (all parts): Multi-core and symmetrical pair/quad cables for digital communications
___________
To be published.
60603-7-5 © IEC:2010 – 7 –
2 Terms and definitions
For the purposes of this document, the terms and definitions given in Clause 2 of IEC 60603-7
apply as well as the following.
2.1
backward compatibility
the backward compatibility requirement ensures that a free or fixed connector which is in
compliance with this standard, mated with a fixed or free connector respectively in compliance
with any lower frequency IEC 60603-7 series connector, fully complies with the requirements
of the lower frequency IEC 60603-7 series connector
3 Common features and isometric view
See Clause 3 of IEC 60603-7-1 for dimensions, views and requirements.
4 Cable terminations and internal connections – Fixed and free connectors
See Clause 4 of IEC 60603-7-1 for cable termination and internal connections types.
5 Gauges
The gauges as defined by Clause 5 of IEC 60603-7-1 shall apply.
6 Characteristics
6.1 General
Connectors according to IEC 60603-7-5 shall also conform to all relevant requirements
specified by IEC 60603-7-1.
6.2 Pin and pair grouping assignment
The pin and pair grouping assignment of 6.2 of IEC 60603-7 applies.
6.3 Classification into climatic category
Connectors according to IEC 60603-7-5 are classified in the same climatic categories as
defined by IEC 60603-7.
6.4 Electrical characteristics
Connectors according to IEC 60603-7-5 shall also conform to the electrical characteristics
specified by IEC 60603-7-1.
6.5 Transmission characteristics
6.5.1 General
Compliance to this standard in respect to transmission characteristics, is determined
according to specific test methods described in test group EP, see Table 1. The
interoperability of connectors complaint to this standard shall be demonstrated by testing the

– 8 – 60603-7-5 © IEC:2010
fixed connectors with the full range of free connectors according to IEC 60512-27-100 .
Transmission performance backward compatibility shall be demonstrated by testing the fixed
connectors with the full range of free connectors described in IEC 60512-27-100.
All transmission performance requirements apply between the reference planes specified in
IEC 60512-27-100.
NOTE In the following subclauses f is the frequency expressed in MHz.
6.5.2 Insertion loss
Conditions:
IEC 60512, test 27a
Mated connectors
All pairs: ≤ 0,02x f dB from 1 MHz to 250 MHz.
Whenever the equation results in a value less than 0,1 dB, the requirement shall revert
to 0,1 dB.
6.5.3 Return loss
Conditions:
IEC 60512, test 27b
Mated connectors
All pairs: ≥ 64-20log (f) dB from 1 MHz to 250 MHz.
Whenever the equation results in a value greater than 30 dB, the requirement shall
revert to 30 dB.
6.5.4 Propagation delay
All pairs: ≤ 2,5 ns
Propagation delay test does not need to be performed, since it is assumed that
connectors comply by design.
6.5.5 Delay skew
All pair combinations: ≤ 1,25 ns
NOTE This characteristic is calculated from the individual propagation delay measurements and, as with
propagation delay (6.5.4), it is assumed that connectors comply by design.
6.5.6 NEXT
Conditions:
IEC 60512, test 27c
Mated connectors
All pair combinations: ≥ 94-20log (f) dB from 1 MHz to 250 MHz.
Whenever the equation results in a value greater than 75 dB, the requirement shall
revert to 75 dB.
6.5.7 Power sum NEXT (for information only)
Conditions:
___________
For transmission performance, interoperability and backwards compatibility, IEC 60512-26-100 may be used as
an alternative to IEC 60512-27-100 for connecting hardware that has been previously qualified to IEC 60603-7-
5 edition 1. Where IEC 60512-26-100 is used that shall be reported.

60603-7-5 © IEC:2010 – 9 –
Mated connectors
−NEXT
n ik
PS NEXT = −10log 10
k ∑
=1, ≠
i i k
All pairs: ≥ 90-20log (f) dB from 1 MHz to 250 MHz.
NOTE This characteristic is calculated from the individual NEXT measurements and connector compliance is
achieved by compliance to the NEXT requirements (6.5.6).
6.5.8 FEXT
Conditions:
IEC 60512, test 27d
Mated connectors
All pair combinations: ≥ 83,1-20log (f) dB from 1 MHz to 250 MHz.
Whenever the equation results in a value greater than 75 dB, the requirement shall
revert to 75 dB.
6.5.9 Power sum FEXT (for information only)
Conditions:
Mated connectors
−FEXT
n ik
PS FEXT = −10log 10
k ∑
i=1,i≠k
All pairs: ≥ 80,1-20log (f) dB from 1 MHz to 250 MHz .
NOTE This characteristic is calculated from the individual FEXT measurements and connector compliance is
achieved by compliance to the FEXT requirements (6.5.8).
6.5.10 Transverse conversion loss
Conditions:
IEC 60512, test 27f
Mated connectors
≥ 68-20log (f) dB from 1 MHz to 250 MHz .
All pairs
Whenever the equation results in a value greater than 50 dB, the requirement shall
revert to 50 dB.
6.5.11 Transverse conversion transfer loss
Conditions:
IEC 60512, test 27g
Mated connectors
All pairs: ≥ 68-20log (f) dB from 1 MHz to 250 MHz.
Whenever the equation results in a value greater than 50 dB, the requirement shall
revert to 50 dB.
6.6 Mechanical
Connectors according to IEC 60603-7-5 shall also conform to the mechanical characteristics
specified by IEC 60603-7-1.
– 10 – 60603-7-5 © IEC:2010
7 Tests and test schedule
7.1 General
See 7.1 of IEC 60603-7.
7.2 Arrangement for contact resistance test
For useful information regarding contact resistance tests see 7.2 of IEC 60603-7.
7.3 Arrangement for vibration test
For useful information regarding the principle of vibration tests see 7.3 of IEC 60603-7.
7.4 Test procedures and measuring methods
See 7.4 of IEC 60603-7.
7.5 Preconditioning
See 7.5 of IEC 60603-7.
7.6 Wiring and mounting of specimens
7.6.1 Wiring
Wiring of these connectors shall take into account the wire and cable diameter of the cables
defined in the IEC 61156 series as applicable by manufacturer’s specification.
7.6.2 Mounting
See 7.6.2 of IEC 60603-7.
7.7 Test schedules
The test parameters required shall not be less than those listed in Clause 6.
7.7.1 Basic (minimum) test schedule
Not applicable.
7.7.2 Full test schedule
7.7.2.1 General
In addition to the test schedules of IEC 60603-7 and IEC 60603-7-1, one further group of two
sets of mated connectors is required for group EP. The free connectors for group EP shall
additionally meet the requirements of the IEC 60512-27-100.
7.7.2.2 Test group P preliminary
All the test group specimens shall be subjected to the preliminary groups P of IEC 60603-7
and IEC 60603-7-1.
7.7.2.3 Test group AP
See 7.7.2.3 of IEC 60603-7 and of IEC 60603-7-1.

60603-7-5 © IEC:2010 – 11 –
7.7.2.4 Test group BP
See 7.7.2.4 of IEC 60603-7 and of IEC 60603-7-1.
7.7.2.5 Test group CP
See 7.7.2.5 of IEC 60603-7 and of IEC 60603-7-1.
7.7.2.6 Test group DP
See 7.7.2.6 of IEC 60603-7 and of IEC 60603-7-1.
7.7.2.7 Test group EP
Table 1 – Test Group EP
Test Test Measurement to be performed
phase
Title IEC 60512 Severity or Title IEC 60512 Requirements
Test No. condition of test Test No.

EP1  All pairs, one Insertion loss Test 27a Per 6.5.2
direction
EP 2  All pairs, both NEXT Test 27c Per 6.5.6
directions, (pair to
pair)
EP 3  All pairs, both Return loss Test 27b Per 6.5.3
directions
EP 4  All pairs, both FEXT Test 27d Per 6.5.8
directions, (pair to
pair)
EP 5  A
...