IEC 61076-3-104:2003

Connectors for electronic equipment - Part 3-104: Rectangular connectors - Detail specification for 8-way, shielded free and fixed connectors for data transmissions with frequencies up to 600 MHz minimum

Establishes uniform specifications, type testing requirements and quality assessment procedures for 8-way connectors, with up to 4 pairs, for frequencies up to 600 MHz minimum, and intended to be used at different locations within cabling for information and communications technology, home entertainment and multimedia. Contains a choice of all test methods and sequences, severity and preferred values for dimensions and characteristics.

General Information

• Status: Published
• Publication Date: 01-Apr-2003
• ICS: 31.220.10 - Plug-and-socket devices. Connectors
• Technical Committee: SC 48B - Electrical connectors
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 25-Jul-2006

Relations

• Replaces: IEC PAS 61076-3-104:2002 - Connectors for electronic equipment - Part 3-104: Detail specification for 8-way, shielded free and fixed connectors, for data transmissions with frequencies up to 600 MHz minimum
• Effective Date: 05-Sep-2023
• Revised: IEC 61076-3-104:2006 - Connectors for electronic equipment - Product requirements - Part 3-104: Detail specification for 8-way, shielded free and fixed connectors for data transmissions with frequencies up to 1 000 MHz
• Effective Date: 05-Sep-2023

Standards Content (Sample)

INTERNATIONAL IEC
STANDARD
61076-3-104
First edition
2003-04
Connectors for electronic equipment –
Part 3-104:
Rectangular connectors –
Detail specification for 8-way, shielded free
and fixed connectors for data transmissions
with frequencies up to 600 MHz minimum

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)
• Catalogue of IEC publications
The on-line catalogue on the IEC web site (http://www.iec.ch/searchpub/cur_fut.htm)
enables you to search by a variety of criteria including text searches, technical
committees and date of publication. On-line information is also available on
recently issued publications, withdrawn and replaced publications, as well as
corrigenda.
• IEC Just Published
This summary of recently issued publications (http://www.iec.ch/online_news/
justpub/jp_entry.htm) is also available by email. Please contact the Customer
Service Centre (see below) for further information.
• Customer Service Centre
If you have any questions regarding this publication or need further assistance,
please contact the Customer Service Centre:
Email: [e-mail]
Tel: [phone]
Fax: [phone]
INTERNATIONAL IEC
STANDARD
61076-3-104
First edition
2003-04
Connectors for electronic equipment –
Part 3-104:
Rectangular connectors –
Detail specification for 8-way, shielded free
and fixed connectors for data transmissions
with frequencies up to 600 MHz minimum

 IEC 2003  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 – 61076-3-104  IEC:2003(E)

CONTENTS
FOREWORD . 5

1 General . 7

1.1 Scope . 7

1.2 Normative references . 7

2 Marking Information . 8

2.1 IEC type designation. 8

2.2 Marking . 8
2.3 Groups of related connectors. 8
2.4 Interchangeability level . 9
2.5 Isometric views and common features .10
3 Dimensional information .10
3.1 General .10
3.2 Free connector (plug) .11
3.3 Fixed connector (outlet) .21
3.4 Gauges.26
4 Characteristics.32
4.1 General .32
4.2 Terminology.32
4.3 Classification into climatic categories .32
4.4 Creepage and clearance distances .33
4.5 Electrical characteristics .33
4.6 Mechanical .36
5 Quality assessment procedures .36
6 Qualification approval test schedule.36
6.1 General .36
6.2 Test procedures and measuring methods .37
6.3 Preconditioning.37
6.4 Wiring and mounting of specimens .37
Annex A (normative) Contact resistance arrangement .45
Annex B (normative) Gauging requirements .46

Annex C (normative) Locking device mechanical operation .47
Annex D (normative) Plug and outlet interoperability qualification .48
Annex E (normative) General requirements for the measurement set-up .50
Annex F (normative) Insertion loss .55
Annex G (normative) Return loss .57
Annex H (normative) Near end crosstalk .59
Annex I (normative) Far end crosstalk .62
Annex J (normative) Unbalanced attenuation .65
Annex K (normative) Transfer impedance.67
Annex L (normative) Coupling attenuation.73
Annex M (normative) Termination of balun .76

61076-3-104  IEC:2003(E) – 3 –

Figure 1 – IEC type designation . 9

Figure 2 – Fixed connector.10

Figure 3 – Free connector .10

Figure 4 – Variant 03, 4-pair plug.11

Figure 5 – Variant 04, 2-pair plug.11

Figure 6 – Variant 05, 1-pair plug.12

Figure 7 – Variant 03 drawing 1 .13

Figure 8 – Variant 03 drawing 2 .14

Figure 9 – Variant 03 drawing 3 .15
Figure 10 – Variant 04 drawing 1.16
Figure 11 – Variant 04 drawing 2.17
Figure 13 – Variant 05 drawing 2.19
Figure 14 – Variant 05 drawing 3.20
Figure 15 – Isometric view of variant 01 (cable outlet).21
Figure 16 – Variant 01 cable outlet drawing 1.22
Figure 17 – Variant 01 cable outlet drawing 2.24
Figure 18 – Variant 02 printed circuit board (PCB) outlet drawing.25
Figure 19 – Fixed connector location GO gauge.26
Figure 20 – Fixed connector location NO-GO gauge.27
Figure 21 – Fixed connector size GO gauge.27
Figure 22 – Fixed connector size NO-GO gauge .28
Figure 23 – Free connector location GO gauge .29
Figure 24 – Free connector location NO-GO gauge .29
Figure 25 – Free connector plug size GO gauge .30
Figure 26 – Free connector size NO-GO gauge.30
Figure 27 – Test panels.32
Figure 28 – Current-carrying capacity.33
Figure A.1 – Contact resistance arrangement.45
Figure D.1 – Precision test fixtures (covers).48
Figure E.1 – 180° hybrid used as a balun.51
Figure E.2 – Calibration of reference loads .52

Figure E.3 – Resistor load.53
Figure E.4 – Definition of reference planes.54
Figure F.1 – Calibration.55
Figure F.2 – Measuring set-up .56
Figure H.1 – NEXT measurement differential mode only terminations.59
Figure H.2 – NEXT measurement differential and common mode terminations .60
Figure I.1 – FEXT measurement differential mode only terminations .62
Figure I.2 – FEXT measurement differential and common mode terminations .63
Figure J.1 – LCL measurement .65
Figure K.1 – Preparation of test specimen.68
Figure K.2 – Triaxial test set-up .69
Figure K.3 – Impedance matching for R < 50 Ω .70
– 4 – 61076-3-104  IEC:2003(E)

Figure K.4 – Impedance matching for R > 50 Ω .71
Figure M.1 – Balanced attenuator for balun centre tap grounded.76

Figure M.2 – Balanced attenuator for balun centre tap open.76

Table 1 – Variant 03 drawing 1 dimensions .13

Table 2 – Variant 03 drawing 2 dimensions .14

Table 3 – Variant 03 drawing 3 dimensions .15

Table 4 – Variant 04 drawing 1 dimensions .16

Table 5 – Variant 04 drawing 2 dimensions .17

Table 6 – Variant 05 drawing 1 dimensions .18
Table 7 – Variant 05 drawing 2 dimensions .
...