IEC 60603-7-7:2010

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 60603-7-7:2010 covers 8-way, shielded, free and fixed connectors, 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 600 MHz. These connectors are typically used as category 7 connectors in class F 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 60603-7-1. This third edition of IEC 60603-7-7 cancels and replaces the second edition issued in 2006, and constitutes a technical revision. The main technical changes are as follows:
- Removal of test methods that are now referenced to IEC 60512-26-100;
- addition of TCL and TCTL requirements and removal of the electrical, mechanical, dimensional, environmental conditioning tests by reference to IEC 60603-7.

Connecteurs pour équipements électroniques - Partie 7-7: Spécification particulière pour les fiches et les embases blindées à 8 voies pour la transmission de données à des fréquences jusqu'à 600 MHz

La CEI 60603-7-7:2010 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 des exigences de transmission électrique pour des fréquences jusqu'à 600 MHz. Ces connecteurs sont normalement utilisés comme connecteurs de catégorie 7 dans les systèmes de câblage de classe F 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 60603-7-1. La présente troisième édition de la CEI 60603-7-7 annule et remplace la seconde édition publiée en 2006, et constitue une révision technique. Les principales différences techniques par rapport à l'édition précédente sont les suivantes:
- retrait des méthodes d'essai qui sont désormais référencées dans la CEI 60512-26-100;
- ajout des exigences TCL et TCTL, retrait des essais électriques, mécaniques, dimensionnels, et de conditionnement environnemental avec renvoi à la CEI 60603-7.

General Information

• Status: Published
• Publication Date: 30-May-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: 31-May-2010
• Completion Date: 30-Jun-2010

Relations

• Revises: IEC 60603-7-7:2006 - 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
• Effective Date: 05-Sep-2023

Overview

IEC 60603-7-7:2010 is an international standard published by the International Electrotechnical Commission (IEC) focusing on 8-way, shielded connectors designed for electronic equipment. This third edition specifies detailed requirements for both free and fixed connectors utilized in data transmission at frequencies up to 600 MHz. These connectors are integral components in Category 7 (Class F) cabling systems as defined by ISO/IEC 11801, ensuring reliable high-frequency data transmission with appropriate electromagnetic shielding.

The standard provides comprehensive specifications covering dimensional, mechanical, electrical, and environmental characteristics. It references general tests and requirements from IEC 60603-7 and IEC 60603-7-1, while adding specific electrical transmission criteria suitable for high-performance data communication applications.

Key Topics

• Connector Types: The standard defines both free (plug) and fixed (socket) shielded connectors with 8-way configurations. These connectors are designed to be interchangeable and interoperable with other connectors in the IEC 60603-7 series.

• Frequency Range: Supports data transmission frequencies up to 600 MHz, making it suitable for advanced networking protocols requiring high bandwidth and low signal loss.

• Electrical Requirements: Includes critical transmission parameters such as insertion loss, return loss, propagation delay, delay skew, and near-end crosstalk (NEXT). The addition of transverse conversion loss (TCL) and transverse conversion transfer loss (TCTL) requirements enhance signal integrity assurance.

• Mechanical and Environmental Tests: Maintains robustness by referencing established mechanical and environmental conditioning tests in IEC 60603-7, ensuring connectors withstand physical stresses and harsh conditions.

• Interoperability: Ensures compatibility with the broader IEC 60603-7 connector series, facilitating system flexibility and simplifying equipment integration.

• Test Methods Update: This edition removes certain test procedures now incorporated in IEC 60512-26-100, streamlining the testing process without compromising quality and reliability.

Applications

IEC 60603-7-7 connectors are widely used in high-speed data communication networks requiring reliable shielding and signal integrity. Key applications include:

• Structured Cabling Systems: Particularly Class F cabling installations within commercial buildings, data centers, and telecommunication facilities.

• High-Frequency Data Transmission: Suitable for networks supporting Gigabit Ethernet and other protocols up to frequencies of 600 MHz.

• Industrial and Commercial Electronic Equipment: Used in equipment panels and interfaces where durable, shielded connectors ensure minimal electromagnetic interference (EMI) and robust data links.

• Interconnect Solutions: Enables modular and flexible connectivity in both fixed infrastructure and patch panels.

Related Standards

• IEC 60603-7: General specification covering modular connectors for electronic equipment, providing the foundation for mechanical and dimensional requirements.

• IEC 60603-7-1: Establishes generic detailed specifications applicable to various connector types within the IEC 60603-7 series.

• IEC 60512-26-100: Details test methods related to contact resistance and connector reliability now referenced in IEC 60603-7-7.

• ISO/IEC 11801: Defines Class F structured cabling systems that utilize these connectors for specified data transmission performance.

• Other IEC 60603-7 Series Parts: Ensures comprehensive coverage of related modular connectors for electronic systems.

---

Keywords: IEC 60603-7-7, 8-way shielded connectors, Category 7 connectors, Class F cabling, high frequency connectors, data transmission connectors, electronic equipment connectors, IEC connector standards, shielded modular connectors, structured cabling systems, signal integrity, electromagnetic shielding.

Standards Content (Sample)

IEC 60603-7-7 ®
Edition 3.0 2010-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
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

Connecteurs pour équipements électroniques –
Partie 7-7: Spécification particulière pour les fiches et les embases blindées à
8 voies pour la transmission de données à des fréquences jusqu'à 600 MHz

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IEC 60603-7-7 ®
Edition 3.0 2010-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
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

Connecteurs pour équipements électroniques –
Partie 7-7: Spécification particulière pour les fiches et les embases blindées à
8 voies pour la transmission de données à des fréquences jusqu'à 600 MHz

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
U
CODE PRIX
ICS 31.220.10 ISBN 978-2-88910-967-8
– 2 – 60603-7-7 © IEC:2010
CONTENTS
FOREWORD.4
INTRODUCTION.6
1 General .7
1.1 Scope.7
1.2 Normative references .7
2 Terms and definitions .8
3 Common features and isometric view .8
3.1 General .8
3.2 Isometric view .9
3.3 Common features .9
3.4 Engagement (mating) information.9
3.5 Fixed connectors .10
3.6 Free connectors .12
4 Cable terminations and internal connections.14
4.1 General .14
4.1.1 Complete connectors (pairs).14
4.1.2 Switch function .15
4.2 Termination types.15
5 Gauges .15
5.1 Fixed connectors .15
5.2 Free connectors .18
6 Characteristics .20
6.1 General .20
6.2 Pin and pair grouping assignment .21
6.3 Climatic category.22
6.4 Electrical characteristics.22
6.5 Transmission characteristics .22
6.5.1 General .22
6.5.2 Insertion loss.23
6.5.3 Return loss .23
6.5.4 Propagation delay .23
6.5.5 Delay skew.23
6.5.6 NEXT .23
6.5.7 Power sum NEXT (for information only) .24
6.5.8 FEXT.24
6.5.9 Power sum FEXT (for information only) .24
6.5.10 Transverse conversion loss .24
6.5.11 Transverse conversion transfer loss .24
6.6 Mechanical characteristics .25
6.6.1 Mechanical operation .25
6.6.2 Effectiveness of connector coupling devices.25
6.6.3 Insertion and withdrawal forces .25
7 Tests and test schedule.25
7.1 General .25
7.2 Arrangement for contact resistance test: .25
7.3 Arrangement for vibration test .25

60603-7-7 © IEC:2010 – 3 –
7.4 Test procedures and measuring methods .25
7.5 Preconditioning .25
7.6 Wiring and mounting of specimens .25
7.6.1 Wiring.25
7.6.2 Mounting .25
7.7 Test schedules .25
7.7.1 Basic (minimum) test schedule .25
7.7.2 Full test schedule .26
Bibliography.28

Figure 1 – Isometric view, example of fixed and free connector, free connector shown
with both switch positions .9
Figure 2 – Contact interface dimensions with terminated free connector .10
Figure 3 – Physical interface, fixed connector, front view .11
Figure 4 – Physical interface, fixed connector, side view.11
Figure 5 – Physical interface, free connector .13
Figure 6 – Fixed connector additional go gauge .16
Figure 7 – Fixed connector additional no-go gauges .17
Figure 8 – Free connector additional no-go gauges.19
Figure 9 – Free connector additional go gauges.20
Figure 10 – Fixed connector pin and pair grouping assignment (front view of
connector) .21
Figure 11 – Basic switch function (Note: colours stated are an example of colours
which may be used) .21
Figure 12 – Additional switch function (Note: colours stated are an example of colours
which may be used) .22

Table 1 – Physical interface, contacts interface .10
Table 2 – Fixed connector common dimensions .12
Table 3 – Common dimensions – free connector.14
Table 4 – Fixed connector, additional, gauge dimensions .18
Table 5 – Free connector additional gauges dimensions .20
Table 6 – Test group EP .26

– 4 – 60603-7-7 © IEC:2010
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
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

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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Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
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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
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
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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
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
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services carried out by independent certification bodies.
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
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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 60603-7-7 has been prepared by subcommittee 48B: Connectors,
of IEC technical committee 48: Electromechanical components and mechanical structures for
electronic equipment.
This third edition of IEC 60603-7-7 cancels and replaces the second edition issued in 2006,
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.
60603-7-7 © IEC:2010 – 5 –
The text of this standard is based on the following documents:
FDIS Report on voting
48B/2152/FDIS 48B/2187/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.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
– 6 – 60603-7-7 © IEC:2010
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)
60603-7-7 © IEC:2010 – 7 –
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

1 General
1.1 Scope
This part of IEC 60603 covers 8-way, shielded, free and fixed connectors, 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 600 MHz. These connectors are typically used as category 7 connectors in
class F 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 60603-7-1,
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 60512-25-9, Connectors for electrical equipment – Tests and measurements – Part 25-9:
Signal integrity tests – Test 25i: Alien crosstalk
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: Detail specification for 8-
way, shielded, free and fixed connectors
IEC 60603-7-71, Connectors for electronic equipment – Part 7-51: Detail specification for 8-
way, shielded, free and fixed connectors, for data transmissions with frequencies up to 1
000 MHz
IEC 61156 (all parts): Multi-core and symmetrical pair/quad cables for digital communications
—————————
To be published.
To be published.
– 8 – 60603-7-7 © IEC:2010
2 Terms and definitions
For the purposes of this document, the terms and definitions given in Clause 2 of IEC 60603-7
and Clause 2 of IEC 60603-7-1 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 for dimensions, views and requirements applicable to all
IEC 60603-7 connectors. See Clause 3 of IEC 60603-7-1 for dimensions, views and
requirements applicable to all shielded IEC 60603-7 connectors.
Dimensions, views and requirements applicable to all IEC 60603-7-7 connectors are given
herein for fixed connectors and free connectors.
3.1 General
The shape of the connectors may deviate from those given in the following drawings as long
as the specified dimensions are not influenced.
Dimensions are given in millimetres.
Drawings are shown in first angle projection unless specifically stated otherwise in the figure.

60603-7-7 © IEC:2010 – 9 –
3.2 Isometric view
IEC  1128/10
NOTE The free connector protrusions move together, between the extended position and the retracted position, to
activate the switch within the free connector see 4.1 .
Figure 1 – Isometric view, example of fixed and free connector,
free connector shown with both switch positions
3.3 Common features
These connectors have common features concerning the arrangement of the contacts, mating
information, and the coupling device.
These connectors have the same common features as the IEC 60603-7 series connectors.
Mating alignment is controlled by a vertical and horizontal reference position and the
centering of the coupling device (latch).
3.4 Engagement (mating) information
Common dimensions are given in Figure 2 and in Table 1.
Care shall be taken that contacts avoid interference with the plastic of the free connector.
The mating information shown can only be achieved with a free connector with a cable
attached.
– 10 – 60603-7-7 © IEC:2010
C
H2
C
B
D2
A
E2
IEC  1129/10
Figure 2 – Contact interface dimensions with terminated free connector
Table 1 – Physical interface, contacts interface
Maximum Minimum
Letter
mm mm
D2 2,79
E2 4,11
a
H2 0,38
CK2 0,60 0,50
CR2 1,70
a
H2: Burrs shall not project above top of contact in this area, since it
may be a contact area.
3.5 Fixed connectors
Common dimensions are given in Figure 3 and Figure 4 and in Table 2.
All internal corners in the connector cavity shall have a maximum radius of 0,38 mm unless
otherwise specified.
Contacts are shown at rest. Contacts shall always be contained inside guide slots. Contacts
shall move freely within their guide slots.
CK2
CR2
60603-7-7 © IEC:2010 – 11 –
7× AH1
0,05 mm C
0,002 in
C
AH1
0,15 maximum taper
1 8
B
CQ1
AB1
6′ 3′ 4′ 5′
AH1
CS1
0,25 mm C
0,010 in C
S1
C
CT1
IEC  1130/10
Figure 3 – Physical interface, fixed connector, front view
SE1
B
SA1 Y1
SG1 CB1
AL1
A
IEC  1131/10
Figure 4 – Physical interface, fixed connector, side view
CA1
CG1
CK1
CP1
CN1
– 12 – 60603-7-7 © IEC:2010
Table 2 – Fixed connector common dimensions
Maximum Minimum Nominal
Letter
mm mm mm
S1 12,04 11,84 11,94
Y1 2,34
a
AA1 1,24
AB1 0,38
f
AH1  1,02
b
AL1 1,40
CA1 2,30 2,20
CB1 3,95
CG1 0,10
a
CK1 0,65
CN1 1,40 1,30
CP1 5,05 4,95
CQ1 6,00 5,80
CS1  7,66
CT1 13,0 12,9
SA1 5,31
c
SE1 5,80
d, e
SG1 5,80
a
AA1: Preferred male free connector stop.
b
AL1: Front surface need not be planar or coincident with the surface below the locking device as long as
insertion, latching and unlatching of free connectors is not inhibited. Projections beyond AL1 dimension shall not
prevent finger access to the free connector locking (coupling) device.
c
SE1: Maximum forward extension of contacts below surface AC1, to avoid contact with shields of free
connectors. Applies in the mated state.
d
SG1: Maximum forward extension of contacts above surface reference plane B, to avoid contact with shields of
free connectors. Applies in the mated state.
e
SG1: When this dimension is greater than 2,5 mm, and the fixed connector is mated with a lower frequency
60603-7 series free connector, then “additional switch function” (see Figure 12) should be utilised, The clearance
requirement between signal conductors 6’,3’,4’,5’ of the fixed connector and the screen of a IEC 60603-7-1,2,3,4,5
free connector is maintained when this dimension is 2,5 mm or less while the “basic switch function” (see Figure
11) is utilised. SG1 is typically 0,0 mm in the mated state with a IEC 60603-7-1,2,3,4,5 free connector.
f
AH1: True position.
NOTE 1 Care should be taken that all screen contacts of the fixed connector always make contact with the
screen contacts of the free connector in worst case condition to ensure reliable performance.
NOTE 2 All internal corners in the connector cavity should be 0,38 mm radius maximum unless otherwise
specified.
3.6 Free connectors
Common dimensions are given in Figure 5 and in Table 3.
Full radius permitted on all contact slots.

60603-7-7 © IEC:2010 – 13 –
0,05 mm C SG2
0,002 in C
CS2
C
0,05 mm
0,002 in C
CT2
CB2
C
0,05 mm
B2
BC2
0,002 in C
B
X2
B2
A2
BB2 BM2 S2
C
BP2
BA2
A
IEC  1132/10
Figure 5 – Physical interface, free connector
AX2
CG2
CA2
CQ2
AH2
AY2
BL2
CP2
CN2
– 14 – 60603-7-7 © IEC:2010
Table 3 – Common dimensions – free connector
Maximum Minimum Nominal
Letter
mm mm mm
A2 1,45 0,89 1,17
B2 0,61 0,51 0,56
S2 11,79 11,58 11,68
X2 6,51 6,36
a
AH2  1,02
AX2 1,32
AY2 2,87 2,67
BA2 12,32
BB2 1,14 0,38
BC2 1,02 0,51
b
BL2 8,36
BM2 15,88 14,61
BP2 23,11
CA2 2,20 2,00
CB2 3,95 3,75
CG2 0,22 0,12
CN2 1,30 1,20
CP2 5,05 4,95
CQ2 5,70 5,50
a
CS2  7,66
CT2 12,85 12,75
SG2 6,85
a
AH2, CS2: These dimensions apply to the locations of the contact
slots.
b
BL2: Applies with locking device depressed.
NOTE Full radius permitted on all slots.
4 Cable terminations and internal connections
4.1 General
4.1.1 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 (See Figures 11 and 12).
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 below 600 MHz,
see 4.1.1.2.
Switch operation is implemented by means of moving switch actuator protrusions on the free
connector (see 4.1.1.1 and 4.1.1.2).
4.1.1.1 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.
60603-7-7 © IEC:2010 – 15 –
The fixed connector (rear) switch actuator is operated by the free connector front switch
actuator protrusion placed in the extended position.
4.1.1.2 Free connectors
IEC 60603-7-7 free connectors include front and side switch actuator protrusions.
The free connector front switch actuator protrusion, when placed in the extended position,
operates the fixed connector switch actuator.
The free connector side switch actuator protrusions operate the free connector switch. The
absence of fixed connector side channels (as in IEC 60603-7 series connectors other than
IEC 60603-7-7 and IEC 60603-7-71) cause the extended free connector switch actuator
protrusions to move into the retracted position upon insertion.
NOTE A free connector with fixed protrusions, which is not backward compatible with IEC 60603-7 series
connectors, but is intermateable and interoperable with IEC 60603-7-7 fixed connectors, is specified in
IEC 61076-3-110.
4.1.2 Switch function
4.1.2.1 General
Minimum switch function requirements are given and are identified as “basic switch function”.
Additional switch functions are given and are identified as “additional switch function”.
Switch functions are diagrammed in 6.2, NOTE Colours stated are an example of colours which may
be used.
Figure 11 and NOTE Colours stated are an example of colours which may be used.
Figure 12.
4.1.2.2 Basic switch function
The basic switch function uses a single pole switch for each alternative contact to connect the
respective standard contact to either the screen or the alternative contact. The alternative
contact is permanently connected to the termination.
4.1.2.3 Additional switch function
The additional switch function uses a double pole switch for each alternative contact to
connect the respective standard contact to either the screen or the termination while the
alternative contact is respectively connected to the termination or the screen. Neither the
alternative contact nor the respective standard contact is permanently connected to the
termination.
4.2 Termination types
See 4.2 of IEC 60603-7.
5 Gauges
5.1 Fixed connectors
See 5.1 of IEC 60603-7-1.
– 16 – 60603-7-7 © IEC:2010
In addition to the gauges described in IEC 60603-7-1, 5.1, the following gauges will test
IEC 60603-7-7 specific features.
CT3
CQ3
CB3
IEC  1074/06
Figure 6 – Fixed connector additional go gauge
CA3
60603-7-7 © IEC:2010 – 17 –
CT5
CQ5
Width gauge
CT7
CQ7
Height gauge
CT9
CQ9
Depth gauge
IEC  1133/10
Figure 7 – Fixed connector additional no-go gauges
CA5
CA7
CA9
– 18 – 60603-7-7 © IEC:2010
Table 4 – Fixed connector, additional, gauge dimensions
Maximum Minimum
Letter
mm mm
CA3 2,17 2,03
CA5 2,17 2,03
CA7 2,31 2,3
CA9 2,17 2,03
CB3 2,27 2,08
CQ3 5,7 5,55
CQ5 5,7 5,55
CQ7 5,7 5,55
CQ9 6,01 6,0
CT3 12,87 12,81
CT5 13,01 13,0
CT7 12,87 12,81
CT9 12,87 12,81
5.2 Free connectors
See 5.2 of IEC 60603-7-1. In addition to the gauges described in IEC 60603-7-1, 5.1,
the following gauges will test IEC 60603-7-7 specific features.

60603-7-7 © IEC:2010 – 19 –
CT4
CQ4
Width gauge
CT6
CQ6
Width gauge
CT8
CQ8
Height gauge
IEC  1134/10
Figure 8 – Free connector additional no-go gauges
CA4
CA8
CA6
– 20 – 60603-7-7 © IEC:2010
CT2
CQ2
IEC  1081/06
Figure 9 – Free connector additional go gauges
Table 5 – Free connector additional gauges dimensions
Maximum Minimum
Letter
mm Mm
CA2 2,22 2,21
CA4 2,22 2,21
CA6 2,22 2,21
CA8 2,0 1,99
CQ2 5,81 5,71
CQ4 5,81 5,71
CQ6 5,7 5,69
CQ8 5,81 5,71
CT2 12,96 12,86
CT4 12,85 12,84
CT6 12,96 12,86
CT8 12,96 12,86
6 Characteristics
6.1 General
All the requirements and test schedules apply to the mated connectors including the switch
unless otherwise specified.
Connectors according to IEC 60603-7-7 shall also conform to all relevant requirements
specified by IEC 60603-7-1 and IEC 60603-7-1.
CA2
60603-7-7 © IEC:2010 – 21 –
6.2 Pin and pair grouping assignment
For those specifications for which pin and pair groupings are relevant, unless otherwise
specified, the pin and pair grouping assignments shall be as shown in Figure 10.

1 2 3 4 5 6 7 8
6’ 3’ 4’ 5’
IEC  1082/06
Figure 10 – Fixed connector pin and pair grouping assignment
(front view of connector)
White-orange
Orange
3′
White-green
4′
BluBluee
5′
White-blue
6′
Green
White-brown
Brown
IEC  1083/06
NOTE Colours stated are an example of colours which may be used.
Figure 11 – Basic switch function

– 22 – 60603-7-7 © IEC:2010
White-orange
Orange
3a
White-green
4a
Blue
5a
White-blue
6a
Green
White-brown
Brown
IEC  1084/06
NOTE Colours stated are an example of colours which may be used.
Figure 12 – Additional switch function
6.3 Climatic category
Connectors according to IEC 60603-7-71 are classified in the same climatic categories as
defined by IEC 60603-7.
6.4 Electrical characteristics
6.4.8 Transfer impedance
Conditions:
IEC 60512, Test 26e
Mated connectors, terminated with each cable construction intended to be allowed
for these connectors
0,3
All types: ≤0,05f Ω from 1 MHz to 10 MHz
≤0,01f Ω from 10 MHz to 80 MHz
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 compliant to this standard shall be demonstrated by testing the

60603-7-7 © IEC:2010 – 23 –
fixed connectors with the full range of free connectors according to IEC 60512-27-100 up to
500 MHz . Compliance to this standard in respect to the alien (exogenous) crosstalk is
determined according to specific test methods described in IEC 60512-25-9.
Transmission performance and 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 for the 60603-7-1 interface
A future IEC standard for the 60603-7-7 interface
Mated connectors
All pairs ≤0,02 √f dB from 1 MHz to 600 MHz
Whenever the requirement 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 for the 60603-7-1 interface
A future IEC standard for the 60603-7-7 interface
Mated connectors
All pairs ≥ 68-20log (f) dB from 1 MHz to 600 MHz
Whenever the requirement 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 from 1 MHz to 1 000 MHz where f is the frequency in MHz.
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 his 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 for the 60603-7-1 interface
A future IEC standard for the 60603-7-7 interface
Mated connectors
All pair combinations: ≥ 102,4 - 15log(f) dB, from 1 MHz to 600 MHz.
—————————
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 60603-7-7 edition 1 in the IEC 60603-7-1 interface. Where IEC 60512-26-100 is used that shall be
reported
A future IEC 60512 test method standard up to 600 MHz is under consideration.

– 24 – 60603-7-7 © IEC:2010
Whenever the requirement 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:
Mated connectors
−NEXT
n ik
PS NEXT = −10log 10
k ∑
=1, ≠
i i k
All pairs: ≥99,4 -15log (f) dB from 1 MHz to 600 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 for the 60603-7-1 interface
A future IEC standard for the 60603-7-7 interface
Mated connectors
All pair combinations ≥90-15log (f) dB from 1 MHz to 600 MHz
Whenever the requirement 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: ≥87-15log (f) dB from 1 MHz to 600 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 for the 60603-7-1 interface
A future IEC standard for the 60603-7-7 interface
Mated connectors
All pairs ≥68-20*log(f) dB from 1 MHz to 600 MHz
Whenever the requirement results in a value greater than 50 dB, the requirement shall
revert to 50 dB.
NOTE The test method is currently limited to 100 MHz. (See IEC 60512-27-100)
6.5.11 Transverse conversion transfer loss
Conditions:
IEC 60512, Test 27g for the 60603-7-1 interface
A future IEC standard for the 60603-7-7 interface
Mated connectors
All pairs: ≥68-20log(f) dB from 1 MHz to 600 MHz

60603-7-7 © IEC:2010 – 25 –
Whenever the requirement results in a value greater than 50 dB, the requirement shall
revert to 50 dB.
6.6 Mechanical characteristics
6.6.1 Mechanical operation
See 6.6.1 of IEC 60603-7.
6.6.2 Effectiveness of connector coupling devices
See 6.6.2 of IEC 60603-7.
6.6.3 Insertion and withdrawal forces
See 6.6.3 of IEC 60603-7-1.
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 60603-7-1.
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 60603-7-1.
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 60603-7-1.
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.
– 26 – 60603-7-7 © IEC:2010
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 and IEC 60512-25-9.
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 7.7.2.3 of IEC 60603-7-1.
7.7.2.4 Test group BP
See 7.7.2.4 of IEC 60603-7 and 7.7.2.4 of IEC 60603-7-1.
7.7.2.5 Test group CP
See 7.7.2.5 of IEC 60603-7 and 7.7.2.5 of IEC 60603-7-1.
7.7.2.6 Test group DP
See 7.7.2.6 of IEC 60603-7 and 7.7.2.6 of IEC 60603-7-1.
7.7.2.7 Test group EP
Table 6 – Test group EP
Test Test Measurement to be performed
phase
Title IEC 60512 Severity or Title IEC 60512 Requirements
Test No. condition of Test No.

test
EP1  All pairs, one Insertion loss Test 27a for the 60603- Per 6.5.2
direction 7-1 interface.
A future IEC standard
for the 60603-7-7
Interface
EP 2  All pairs, both NEXT Test 27c for the 60603- Per 6.5.6
directions (pair to 7-1 interface.
pair) A future IEC standard
for the 60603-7-7
Interface
EP 3  All pairs, both Return loss Test 27b for the 60603- Per 6.5.3
directions 7-1 interface.
A future IEC standard
for the 60603-7-7
Interface
EP 4  All pairs, both FEXT Test 27d for the 60603- Per 6.5.8
directions (pair to 7-1 interface.
pair)
A future IEC standard
for the 60603-7-7
Interface
EP 5  All pairs, both TCLs Test 27f for the 60603- Per 6.5.10
directions 7-1 interface.
A future IEC standard
for the 60603-7-7
Interface
60603-7-7 © IEC:2010 – 27 –
Test Test Measurement to be perfor
...