IEC 60603-7-7:2002

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 (category 7, shielded)

Covers 8 way connectors, up to 4 pairs, to be used up to 600 MHz, when used with an appropriate cable. These cables are specified in the IEC 61156 series and used in cabling systems specified in ISO/IEC 11801. The connectors are backward compatible with the already defined IEC 60603-7-X connectors. The connectors are interoperable with the already defined IEC 60603-7-X connectors.

General Information

• Status: Published
• Publication Date: 29-Apr-2002
• ICS: 31.220.10 - Plug-and-socket devices. Connectors
• Technical Committee: SC 48B - Electrical connectors
• Current Stage: DELPUB - Deleted Publication
• Start Date: 22-Jun-2006
• Completion Date: 13-Feb-2026

Relations

• Revised: 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 60603-7-7:2002 is an international detail specification for 8‑way, shielded, free and fixed connectors used for high‑frequency data transmission up to 600 MHz (Category 7, shielded). The standard defines mechanical dimensions, electrical and transmission performance, gauging, test procedures and interoperability requirements so that connectors work reliably when paired with appropriate cables and cabling systems.

Key topics and requirements

• Scope and compatibility
  • 8‑way connectors (up to 4 pairs) for shielded installations.
  • Designed for use with cables specified in the IEC 61156 series and cabling systems per ISO/IEC 11801.
  • Backward compatible and interoperable with other IEC 60603‑7‑X connectors.
• Mechanical details
  • Detailed dimensions, mating interfaces, switch actuator specifications, termination styles and gauge requirements for both free (plug) and fixed (socket) connectors.
• Electrical and transmission characteristics
  • Requirements and test methods for insertion loss, return loss, near‑end (NEXT) and far‑end crosstalk (FEXT), longitudinal conversion loss, transfer impedance, and coupling attenuation up to 600 MHz.
• Performance and mechanical tests
  • Environmental/climatic classification, creepage/clearance, contact resistance, mechanical life and durability tests.
  • Normative annexes provide precision test fixture constructions, measurement set‑ups, calibration references and detailed test procedures.
• Gauging and interchangeability
  • GO/NO‑GO gauges, switch actuator gauges and requirements to ensure interchangeability across manufacturers.

Applications and who uses this standard

• Connector manufacturers - to design and certify Category 7 shielded connectors that meet international mechanical and electrical criteria.
• Cable and system designers - to ensure connectors are matched to IEC 61156 cables and to structured cabling systems (ISO/IEC 11801).
• Test laboratories - for conducting standardized transmission and shielding tests (insertion loss, return loss, NEXT/FEXT, transfer impedance).
• Data center and enterprise network engineers - when specifying shielded connector hardware for high‑frequency networks and EMC‑sensitive environments.
• Specifiers and procurement teams - for product selection, interoperability verification and compliance documentation.

Related standards

• IEC 61156 (multi‑pair screened cables) - cable construction and electrical properties.
• ISO/IEC 11801 - structured cabling system requirements and channel performance.
• IEC 60603‑7 series - other connector families and compatibility references.

Keywords: IEC 60603-7-7, Category 7 shielded connectors, 8-way shielded connectors, 600 MHz connectors, connector interoperability, IEC 61156, ISO/IEC 11801, insertion loss, crosstalk.

Standards Content (Sample)

INTERNATIONAL IEC
STANDARD
60603-7-7
First edition
2002-04
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
(category 7, shielded)
Reference number
Publication numbering
As from 1 January 1997 all IEC publications are issued with a designation in the

60000 series. For example, IEC 34-1 is now referred to as IEC 60034-1.

Consolidated editions
The IEC is now publishing consolidated versions of its publications. For example,

edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the base publication, the

base publication incorporating amendment 1 and the base publication incorporating

amendments 1 and 2.
Further information on IEC publications
The technical content of IEC publications is kept under constant review by the IEC,
thus ensuring that the content reflects current technology. Information relating to
this publication, including its validity, is available in the IEC Catalogue of
publications (see below) in addition to new editions, amendments and corrigenda.
Information on the subjects under consideration and work in progress undertaken
by the technical committee which has prepared this publication, as well as the list
of publications issued, is also available from the following:
• IEC Web Site (www.iec.ch)
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The on-line catalogue on the IEC web site (www.iec.ch/catlg-e.htm) enables
you to search by a variety of criteria including text searches, technical
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INTERNATIONAL IEC
STANDARD
60603-7-7
First edition
2002-04
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
(category 7, shielded)
 IEC 2002  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: [phone] Telefax: [phone] E-mail: [e-mail]  Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale
XC
International Electrotechnical Commission
Международная Электротехническая Комиссия
For price, see current catalogue

– 2 – 60603-7-7  IEC:2002(E)
CONTENTS
FOREWORD.7

1 General .9

1.1 Scope.9

1.2 Normative references .9

2 IEC type designation.11

2.1 Terminology.12

2.2 Marking .12

2.3 Main functions .12
2.4 Interchangeability .12
3 Common features and isometric view.14
3.1 Isometric view .14
3.2 Mating information .15
4 Dimensions.22
4.1 General .22
4.2 Type C free connectors – switch actuator dimensions .22
4.3 Terminations – fixed and free connectors.23
5 Gauges.23
5.1 Fixed connectors .23
5.2 Free connectors .27
5.3 Switch actuator gauges.29
6 Characteristics.29
6.1 General .29
6.2 Classification into climatic categories.29
6.3 Creepage and clearance distance .30
6.4 Electrical characteristics .30
6.5 Transmission characteristics, category 7.32
6.6 Mechanical characteristics.33
7 Tests and test schedule .34
7.1 General .34
7.2 Test procedures and measuring methods.34
7.3 Preconditioning.34

7.4 Wiring and mounting of specimens .34
7.5 Test schedules .36
Annex A (normative) Gauging requirements.43
A.1 Fixed connectors.43
A.2 Free connectors.43
Annex B (normative) Locking device mechanical operation – Test procedure and
requirements.44
B.1 Object.44
B.2 Preparation of the specimens .44
B.3 Test method.44
B.4 Final measurements.44

60603-7-7  IEC:2002(E) – 3 –
Annex C (normative) High frequency (category 7) transmission interoperability testing .45

C.1 Object.45

C.2 Test equipment .45

C.3 Free connector precision test fixture construction .45

C.4 Fixed connector precision test fixture construction.46

C.5 Alternate fixed or free connector test fixture .46

C.6 Test fixture requirements .46

C.7 Test procedure.46

Annex D (normative) General requirements for the measurement set-up.47
D.1 Test instrumentation .47
D.2 Coaxial cables and test leads for network analysers .47
D.3 Measurement precautions .47
D.4 Balun requirements .48
D.5 Reference components for calibration .49
D.6 Termination loads for termination of conductor pairs.49
D.7 Termination of screens.50
D.8 Test specimen and reference planes .50
Annex E (normative) Insertion loss .52
E.1 Object.52
E.2 Test method.52
E.3 Test set up.52
E.4 Procedure .52
E.5 Test report .53
E.6 Accuracy.53
Annex F (normative) Return loss .54
F.1 Object.54
F.2 Test method.54
F.3 Test set-up .54
F.4 Procedure .54
F.5 Test report .54

F.6 Accuracy.54
Annex G (normative) Near end cross talk .56
G.1 Object.56
G.2 Test method.56
G.3 Test set-up .56
G.4 Procedure .57
G.5 Test report .58
G.6 Accuracy.58
Annex H (normative) Far end cross talk.59
H.1 Object.59
H.2 Test method.59

– 4 – 60603-7-7  IEC:2002(E)
H.3 Test set-up .59

H.4 Procedure .60

H.5 Test report .61

H.6 Accuracy.61

Annex I (normative) Longitudinal conversion loss .62

I.1 Object.62

I.2 Test method.62

I.3 Test set-up .62

I.4 Procedure .63
I.5 Test report .63
I.6 Accuracy.63
Annex J (normative) Transfer impedance .64
J.1 Object.64
J.2 Test method.64
J.3 Definitions.64
J.4 Test set-up .65
J.5 Procedure .68
J.6 Test report .69
J.7 Accuracy.69
Annex K (normative) Coupling attenuation .70
K.1 Object.70
K.2 Test method.70
K.3 Test equipment and set-up.70
K.4 Procedure .71
K.5 Test report .71
Annex L (normative) Termination of balun .73
L.1 Termination of balun with low return loss for common mode .73
Annex M (normative) Gauge dimensions supplement for switch actuator for use with

standard IEC 60603-7 series connectors .74
M.1 Fixed connectors.74
M.2 Free connectors.77
Annex N (normative) Switch function .79
N.1 Basic switch function.79
N.2 Alternate switch function .80
Figure 1 – Examples fixed and free connectors, free connector shown with both switch
positions .14
Figure 2 – Physical interface, contacts interface, see table 1 .15
Figure 3 – Physical interface, switch actuator, see table 1 .16
Figure 4 – Physical interface, fixed connector contacts, front view, see table 2 .18

60603-7-7  IEC:2002(E) – 5 –
Figure 5 – Physical interface, fixed connector contacts, side view, see table 2 .18

Figure 6 – Physical interface, free connector contacts, see table 3.20

Figure 7 – Free connector, switch actuator dimensions, see table 4 .22

Figure 8 – Fixed connector GO gauge, see table 5 .24

Figure 9 – Fixed connector NO-GO gauges, see table 5 .25

Figure 10 – Free connector NO-GO gauges, see table 6.27

Figure 11 – Free connector GO gauges, see table 7 .28

Figure 12 – Connector derating curve.31

Figure 13 – Arrangement for contact resistance measurement.35

Figure 14 – Arrangement for dynamic stress tests .36
Figure C.1 – Free connector precision test fixture.45
Figure C.2 – Fixed connector precision test fixture .46
Figure D.1 – 180° hybrid used as a balun .48
Figure D.2 – Calibration of reference loads.49
Figure D.3 – Resistor load.50
Figure D.4 – Definition of reference planes.51
Figure E.1 – Calibration.52
Figure E.2 – Measuring set-up.53
Figure G.1 – NEXT measurement for differential mode only terminations .56
Figure G.2 – NEXT measurement differential and common mode terminations.57
Figure H.1 – FEXT measurement for differential mode only terminations.59
Figure H.2 – FEXT measurement for differential and common mode terminations .60
Figure I.1 – LCL measurement .62
Figure J.1 – Preparation of test specimen.65
Figure J.2 – Triaxial test set-up .66
Figure J.3 – Impedance matching for R < 50 Ω.67
Figure J.4 – Impedance matching for R >50 Ω.68
Figure L.1 – Balanced attenuator for balun centre tap grounded.73
Figure L.2 – Balanced attenuator for balun centre tap open .73
Figure M.1 – Fixed connector switch GO gauge, see table M.1 .74
Figure M.2 – Fixed connector switch NO-GO gauges, see table M.1 .75
Figure M.3 – Free connector switch NO-GO gauges, see table M.2.77
Figure M.4 – Free connector switch GO gauges, see table M.2.78

Figure N.1 – Basic switch function.79
Figure N.2 – Alternate switch function .80
Table 1 – Physical interface contacts interface and switch actuator dimensions .17
Table 2 – Physical interface, fixed connector contacts dimensions.19
Table 3 – Physical interface, free connector contact dimensions .21
Table 4 – Free connector, switch actuator dimensions .22
Table 5 – Fixed connector gauge dimensions .26
Table 6 – Free connector NO-GO gauges dimensions .28
Table 7 – Free connector GO gauges dimensions.29
Table 8 – Climatic categories – selected values.30
Table 9 – Minimum distances .30
Table 10 – Test group P.37

– 6 – 60603-7-7  IEC:2002(E)
Table 11 – Test group AP .38

Table 12 – Test group BP .39

Table 13 – Test group CP.40

Table 14 – Test group DP.40

Table 15 – Test group EP .41

Table 16 – Test group FP .42

Table D.1 – Test balun performance characteristics.48

Table F.1 – Uncertainty band of return loss measurement at frequencies below 100 MHz.55

Table M.1 – Fixed connector switch gauge dimensions .76

Table M.2 – Free connector switch gauge dimensions.78

60603-7-7  IEC:2002(E) – 7 –
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 (category 7, shielded)

FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the 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, the IEC publishes International Standards. 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. The 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 the 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 National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical specifications, technical reports or guides and they are accepted by the National
Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
The International Electrotechnical Commission (IEC) draws attention to the fact that it is claimed that compliance
with this International Standard may involve the use of patent(s).
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 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 International Standard 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.
The text of this standard is based on the following documents:
FDIS Report on voting
48B/1166, 1166A/FDIS 48B/1214/RVD
Full information 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 3.

– 8 – 60603-7-7  IEC:2002(E)
Annexes A, B, C, D, E, F, G, H, I, J, K, L, M and N form an integral part of this standard.

The committee has decided that the contents of this publication will remain unchanged until

2002. At this date, the publication will be

• reconfirmed;
• withdrawn;
• replaced by a revised edition, or

• amended.
60603-7-7  IEC:2002(E) – 9 –
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 (category 7, shielded)

1 General
1.1 Scope
This part of IEC 60603 covers 8 way connectors, up to 4 pairs, to be used up to 600 MHz,
when used with an appropriate cable. These cables are specified in the IEC 61156 series and
used in cabling systems specified in ISO/IEC 11801 .
The connectors are backward compatible with the already defined IEC 60603-7-X connectors.
The connectors are interoperable with the already defined IEC 60603-7-X 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 60068-2-14, Basic environmental testing procedures – Part 2: Tests – Test N: Change of
temperature
IEC 60068-2-38, Basic environmental testing procedures – 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 60352-2:1990, Solderless connections – Part 2: Solderless crimped connections – General

requirements, test methods and practical guidance
IEC 60352-3:1993, Solderless connections – Part 3: Solderless accessible insulation displace-
ment connections – General requirements, test methods and practical guidance
IEC 60352-4:1994, Solderless connections – Part 4: Solderless non-accessible insulation dis-
placement connections – General requirements, test methods and practical guidance
IEC 60352-5:2001, Solderless connections – Part 5: Press-in connections – General require-
ments, test methods and practical guidance
___________
ISO/IEC 11801 contains various ‘category’ designations corresponding to various frequency ranges.
Backward compatibility definition and requirements are given in 2.4.2.
Interoperability definition and requirements are given in 2.4.3.

– 10 – 60603-7-7  IEC:2002(E)

IEC 60352-6:1994, Solderless connections – Part 6: Insulation piercing connections – General

requirements, test methods and practical guidance

IEC 60512 (all parts), Connectors for electronic equipment – Tests and measurements

IEC 60512-1-100, Connectors for electronic equipment – Tests and measurements – Part 1-100:

General – Applicable publications

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, with assessed quality

IEC 60603-7-1, Connectors for electronic equipment – Part 7-1: Detail specification for 8-way,
shielded free and fixed connectors with common mating features, with assessed quality
IEC 60807-1, Rectangular connectors for frequencies below 3 MHz – Part 1: Generic
specification – General requirements and guide for the preparation of detail specifications for
connectors with assessed quality
IEC 61076-1:1995, Connectors with assessed quality, for use in d.c., low frequency analogue
and in digital high speed data applications – Part 1: Generic specification
IEC/PAS 61076-3-110:2002, Connectors for electronic equipment – Part 3-110: Detail
specification for 8 way connectors for frequencies up to 600 MHz
IEC 61156 (all parts), Multicore and symmetrical pair/quad cables for digital communications
IEC 61196 (all parts), Radio-frequency cables
ISO/IEC 11801, Information technology – Generic cabling for customer premises
ISO 1302, Technical drawings – Method of indicating surface texture
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 O.9, Measuring arrangements to assess the degree of unbalance about earth

CENELEC PREN 50289-1-6, Communication Cables – Specifications for Test Methods –
Part 1-6: Electrical Test Methods – Electromagnetic Performance
___________
60603-7-7  IEC:2002(E) – 11 –

2 IEC type designation
Connectors, connector bodies and connectors with pre-inserted contacts according to this

standard shall be designated by the following system (see IEC 60603-7-1).

L N N L L L L N N N N L
IEC-60603-7-7
Reference to
Letter denoting
this standard
assessment
level
Letters denoting connector A
type
G
Fixed panel mounted A
version
Number denoting
Fixed board mounted B
performance level (PL)
version
1 750 operations
Free version C
2 2 500 operations
Free coupler version D
Number denoting variant
Number of contacts 02
For details see clause 4
08 03
12 04
Contact position
Standard A
Variant B
Number denoting contact finish
1 Gold, gold-alloy
Letter denoting type of contact 2 Palladium/nickel
Female F
Letter denoting type of conductor
Male M
accommodation, or cable
A Tinsel wire
Letter denoting type of termination
B Stranded wire
Screw terminal
A
C Solid wire
Crimp C
D Tinsel or stranded wire
Insulation displacement D
E Stranded or solid wire
Insulation piercing P
Solder S F Tinsel, stranded or solid wire
G Board-mounted
Compliant pin T
Customer specific cable requirements
X
NOTE “L” stands for letter
“N” stands for number
– 12 – 60603-7-7  IEC:2002(E)

Example:
IEC 60603-7-7 C08AFD-C101-2G: Free shielded connector, IDC-contact, having 8 female
contacts in standard contact positions, gold plated to be used with solid wires, meeting
performance level 2, assessment level G.

2.1 Terminology
The terminology used in and applicable to this specification is stated in 2.1 of IEC 61076-1.

Some applicable terms are also covered in IEC 60512-1.

2.2 Marking
Each connector and/or its associated package shall be marked in accordance with the
requirements specified in 2.6 of IEC 61076-1.
2.3 Main functions
These connectors are compatible with IEC 60603-7 series connectors insofar as described
in 2.4.
The two most widely separated pairs of contacts of the 4 original pairs of contacts, normally
used in IEC 60603-7 series connectors at and below 250 MHz, are used herein for applications
above 250 MHz.
Two additional pairs of contacts located opposite the 4 original pairs of contacts are included to
provide a total of 4 pairs for applications above 250 MHz. The remaining two of the 4 original
pairs of contacts are available for use in applications at and below 250 MHz.
A switch is employed within the connectors to engage transmission paths between 4 pairs of
terminations and the respective pairs of contacts operating above 250 MHz or below.
The fixed connector switch is actuated by a protrusion added onto the end of a standard
shaped IEC 60603-7 series free connector (type C) (plug).
The free connector switch is actuated by two protrusions added onto each side of a standard
shaped IEC 60603-7 series free connector (type C) (plug) (see figure 1).
A total of 12 contacts (6 pairs) and 8 terminations (4 pairs) are described herein for the
connectors. At any one time, a maximum of 8 contacts (4 pairs) are engaged by the switch for
transmission by connecting 8 contacts to the 8 terminations. The remaining 4 contacts (2 pairs)

shall be disengaged or connected to a common termination (shield if present).
The wiring convention and the circuit arrangement of the basic switch is detailed in annex N.
2.4 Interchangeability
These connectors are intermateable, interoperable and backward compatible with all
IEC 60603-7 series connectors.
In this standard, ‘lower level IEC 60603-7 series connector’ refers to a connector conforming to
an IEC 60603-7 series specification for a lower application transmission frequency range than
600 MHz, such as 100 MHz or 250 MHz.
The original 4 pairs of contacts and the shield contacts specified for lower level IEC 60603-7
series connectors are given for reference and their specifications given in this standard
conform to the specifications for IEC 60603-7 series connectors.

60603-7-7  IEC:2002(E) – 13 –

In this standard, two pairs of additional contacts and a switch are utilised and described to

facilitate compatibility between IEC 60603-7 series applications implemented for frequencies

above 250 MHz and applications implemented for frequencies at and below 250 MHz.

2.4.1 Intermateability
Intermateability with other IEC 60603-7 series connectors is ensured herein by applying the

same “GO” and “NO-GO”, free and fixed connector gauge requirements as specified for all

lower level IEC 60603-7 series connectors.

2.4.2 Backward compatibility
2.4.2.1 Requirement
The backward compatibility requirement ensures that when a backward compatible connector
in compliance with this standard is mated with another connector in compliance with any lower
level of IEC 60603-7 series connectors, then the mated pair shall comply with the requirements
of the respective lower level IEC 60603-7 series connector.
2.4.2.2 Backward compatibility implementation
The switch may be used in the fixed or in the free connectors. One switch is required in either
the fixed or the free connector to implement backward compatibility.
According to the IEC/ISO 11801, the telecommunications outlet shall be a “jack”, thus full
backward compatibility is ensured by the use of fixed connectors that include a switch.
Fully backward compatible plugs include a switch.
NOTE A free connector with stationary protrusions, which is not backward compatible with IEC 60603-7 series
connectors, but is intermateable with IEC 60603-7-7 fixed connectors, is specified in IEC/PAS 61076-3-110.
2.4.3 Interoperability
2.4.3.1 General
Interoperability ensures that the resulting mated connection of any connector from any source
and complying with any specification belonging to the IEC 60603-7 group with another such
connector shall comply with the mechanical, electrical and transmission requirements of the
respective lower IEC 60603-7 performance category.
2.4.3.2 Requirements
Specific interoperability requirements and test procedures for applications above 250 MHz are
given herein.
– 14 – 60603-7-7  IEC:2002(E)

3 Common features and isometric view

3.1 Isometric view
IEC  917/02
NOTE The free connector protrusions move to activate the switch within the free connector, see 2.3.
Figure 1 – Examples fixed and free connectors,
free connector shown with both switch positions

60603-7-7  IEC:2002(E) – 15 –

3.2 Mating information
For the purpose of this specification, dimensional information in excess of that specified in

IEC 60603-1 (and IEC 60807-1) is detailed. It is, therefore, necessary to read 3.2.1 to 3.2.4

inclusive in conjunction with each other.

3.2.1 Contacts interface
IEC  918/02
Figure 2 – Physical interface, contacts interface, see table 1

– 16 – 60603-7-7  IEC:2002(E)

Switch actuator in extended position
Switch actuator in retracted position
Switch actuator, front
IEC  919/02
NOTE Switch actuator extension dimensions are given for the free connector.
Figure 3 – Physical interface, switch actuator, see table 1

60603-7-7  IEC:2002(E) – 17 –

Table 1 – Physical interface contacts interface and switch actuator dimensions

Maximum Minimum
Letter mm in mm in
A2 1,45 0,057 0,89 0,035
B2 0,61 0,024 0,51 0,020
C2 0,46 0,018 0,03 0,001
D2 2,79 0,110
H2 0,38 0,015
J2 0,64 0,025 0,38 0,015
K2 6,15 0,242 5,89 0,232
CK2 0,60 0,024 0,50 0,020
N2 0,28 0,011
P1 0,50 0,0195 0,45 0,0177
P3 0,50 0,0195 0,36 0,014
R2 4,83 0,190
CR2 1,70 0,067
CA2 2,20 0,087 2,00 0,079
CB2 3,95 0,155 3,75 0,148
CC2 0,20 0,008 0,00 0,00
CG2 0,22 0,009 0,12 0,005
CQ2 5,50 0,217 5,70 0,224
Letter Maximum Minimum
Q 24° 11°
– 18 – 60603-7-7  IEC:2002(E)

3.2.2 Fixed connector contacts

IEC  920/02
Figure 4 – Physical interface, fixed connector contacts, front view, see table 2

IEC  921/02
NOTE The fixed connector switch is actuated by the extension of the switch actuator protrusion located on the free
connector. The fixed connector switch is located accordingly.
Figure 5 – Physical interface, fixed connector contacts, side view, see table 2

60603-7-7  IEC:2002(E) – 19 –

Table 2 – Physical interface, fixed connector contacts dimensions

Maximum Minimum Nominal
Letter mm in mm in mm in
A1 1,47 0,058
B1 0,71 0,028
K1 5,84 0,230
S1 12,04 0,474 11,84 0,466 11,94 0,470

T1 4,19 0,165 3,94 0,155
W1 6,38 0,251 6,22 0,245
X1 6,86 0,270 6,68 0,263
AA1 1,24 0,049
AB1 0,38 0,015
AC1 6,96 0,274 6,76 0,266 6,86 0,270
AD1 0,13 0,005
AH1 1,02 0,040
AK1 8,66 0,341 8,38 0,330
AL1 1,40 0,055
AT1 0,76 0,030
CA1 2,30 0,091 2,20 0,087
CK1 0,65 0,026
CN1 1,40 0,055 1,30 0,051
CP1 5,05 0,199 4,95 0,195
CQ1 6,00 0,236 5,80 0,228
CS1 7,66 0,3016
CT1 13,0 0,512 12,9 0,508
SA1 5,31 0,209
SB1 2,16 0,085
SD1 4,90 0,193
SE1 5,80 0,288
Letter
AJ1 15°
– 20 – 60603-7-7  IEC:2002(E)

3.2.3 Free connector contacts
IEC  922/02
Figure 6 – Physical interface, free connector contacts, see table 3

60603-7-7  IEC:2002(E) – 21 –

Table 3 – Physical interface, free connector contact dimensions

Maximum Minimum Nominal
Letter mm in mm in mm in
A2 1,45 0,057 0,89 0,035 1,17 0,046

B2 0,61 0,024 0,51 0,020 0,56 0,022

D2 2,79 0,110
S2 11,79 0,464 11,58 0,456 11,68 0,460

T2 3,38 0,133 3,12 0,123
W2 6,17 0,243 6,02 0,237
X2 6,02 0,237 5,77 0,227
AA2 1,24 0,049
AC2 6,71 0,264 6,50 0,256 6,60 0,260
AH2 1,02 0,040
AX2 1,32 0,052
AY2 2,87 0,113 2,67 0,105
BD2 8,38 0,330
CA2 2,20 0,087 2,00 0,079
CB2 3,95 0,155 3,75 0,148
CQ2 5,70 0,224 5,50 0,216
BA2 12,32 0,485
CS2 7,66 0,3016
SA2 4,22 0,166
SB2 2,11 0,083
SC2 4,95 0,195
SD2 6,85 0,270
3.2.4 Switch actuator interface
The fixed connector switch is actuated by the extension of the switch actuator protrusion
located on the free connector. The fixed connector switch is located accordingly.

Switch actuator extension dimensions are given for the free connector (above).
The force re
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