SIST EN 60728-4:2008

SLOVENSKI STANDARD
SIST EN 60728-4:2008
01-julij-2008
1DGRPHãþD
SIST EN 50083-4:1999
Kabelska omrežja za televizijske in zvokovne signale ter interaktivne storitve - 4.
del: Pasivna širokopasovna oprema za koaksialna kabelska omrežja (IEC 60728-
4:2007)
Cable networks for television signals, sound signals and interactive services -- Part 4:
Passive wideband equipment for coaxial cable networks
Kabelnetze für Fernsehsignale, Tonsignale und interaktive Dienste - Teil 4: Passive
Breitbandgeräte für koaxiale Kabelnetze
Réseaux de distribution par câbles pour signaux de télévision, signaux de radiodiffusion
sonore et services interactifs - Partie 4: Equipements large bande passifs relatifs aux
réseaux câblés coaxiaux
Ta slovenski standard je istoveten z: EN 60728-4:2008
ICS:
33.060.40 Kabelski razdelilni sistemi Cabled distribution systems
33.120.10 Koaksialni kabli. Valovodi Coaxial cables. Waveguides
SIST EN 60728-4:2008 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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EUROPEAN STANDARD
EN 60728-4

NORME EUROPÉENNE
May 2008
EUROPÄISCHE NORM

ICS 33.060.40; 33.170 Supersedes EN 50083-4:1998


English version


Cable networks for television signals,
sound signals and interactive services -
Part 4: Passive wideband equipment for coaxial cable networks
(IEC 60728-4:2007)


Réseaux de distribution par câbles  Kabelnetze für Fernsehsignale,
pour signaux de télévision, Tonsignale und interaktive Dienste -
signaux de radiodiffusion sonore Teil 4: Passive Breitbandgeräte für
et services interactifs - koaxiale Kabelnetze
Partie 4: Equipements large bande passifs (IEC 60728-4:2007)
relatifs aux réseaux câblés coaxiaux
(CEI 60728-4:2007)




This European Standard was approved by CENELEC on 2008-04-01. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in two official versions (English and German). A version in any other language
made by translation under the responsibility of a CENELEC member into its own language and notified to the
Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels


© 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60728-4:2008 E

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EN 60728-4:2008 - 2 -
Foreword
The text of document 100/1243/FDIS, future edition 3 of IEC 60728-4, prepared by technical area 5,
Cable networks for television signals, sound signals and interactive services, of IEC TC 100, Audio,
video and multimedia systems and equipment, was submitted to the IEC-CENELEC parallel vote and
was approved by CENELEC as EN 60728-4 on 2008-04-01.
This European Standard supersedes EN 50083-4:1998 + corrigendum January 1999.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
(dop) 2009-01-01
national standard or by endorsement
– latest date by which the national standards conflicting
(dow) 2011-04-01
with the EN have to be withdrawn
For this European Standard the informative Annex B of IEC 60728-4:2007 shall be disregarded and
has been replaced by the normative Annex ZB, Special national conditions; and the informative
Annex ZC, A-deviations.
Annexes ZA, ZB and ZC have been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 60728-4:2007 was approved by CENELEC as a European
Standard without any modification.
__________

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- 3 - EN 60728-4:2008
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.

NOTE 1 When an international publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.

NOTE 2  Where a standard cited below belongs to the EN 50000 series, the European Standard applies instead of the relevant
International Standard.

Publication Year Title EN/HD Year


IEC 60068 Series Environmental testing EN 60068 Series


IEC 60417 Data- Graphical symbols for use on equipment - -
base


1) 2)
IEC 60529 - Degrees of protection provided by EN 60529 1991
enclosures (IP Code) + corr. May 1993


IEC 60617 Data- Graphical symbols for diagrams - -
base


IEC 60728 Series Cable networks for television signals, sound EN 60728 Series
signals and interactive services EN 50083 Series


1) 2)
IEC 60966-1 - Radio frequency and coaxial cable EN 60966-1 1999
assemblies -
Part 1: Generic specification - General
requirements and test methods


1) 2)
IEC 60966-2-4 - Radio frequency and coaxial cables EN 60966-2-4 2003
assemblies -
Part 2-4: Detail specification for cable
assemblies for radio and TV receivers -
Frequency range 0 to 3 000 MHz,
IEC 61169-2 connectors


1) 2)
IEC 60966-2-5 - Radio frequency and coaxial cable EN 60966-2-5 2003
assemblies -
Part 2-5: Detail specification for cable
assemblies for radio and TV receivers -
Frequency range 0 to 1 000 MHz,
IEC 61169-2 connectors


1) 2)
IEC 60966-2-6 - Radio frequency and coaxial cable EN 60966-2-6 2003
assemblies -
Part 2-6: Detail specification for cable
assemblies for radio and TV receivers -
Frequency range 0 to 3 000 MHz,
IEC 61169-24 connectors


1) 2)
IEC 61000-4-5 - Electromagnetic compatibility (EMC) - EN 61000-4-5 2006
Part 4-5: Testing and measurement
techniques - Surge immunity test



1)
Undated reference.
2)
Valid edition at date of issue.

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EN 60728-4:2008 - 4 -
Publication Year Title EN/HD Year

1) 2)
IEC 61000-6-1 - Electromagnetic compatibility (EMC) - EN 61000-6-1 2007
Part 6-1: Generic standards - Immunity for
residential, commercial and light-industrial
environments


1) 2)
IEC 61169-1 - Radio-frequency connectors - EN 61169-1 1994
Part 1: Generic specification - General
requirements and measuring methods


1) 2)
IEC 61169-2 - Radio-frequency connectors - EN 61169-2 2007
Part 2: Sectional specification - Radio
frequency coaxial connectors of type 9,52


1) 2)
IEC 61169-24 - Radio-frequency connectors - EN 61169-24 2001
Part 24: Sectional specification - Radio
frequency coaxial connectors with screw
coupling, typically for use in 75 ohm cable
distribution systems (type F)

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- 5 - EN 60728-4:2008
Annex ZB
(normative)

Special national conditions
Special national condition: National characteristic or practice that cannot be changed even over a
long period, e.g. climatic conditions, electrical earthing conditions.
NOTE  If it affects harmonization, it forms part of the European Standard / Harmonization Document.
For the countries in which the relevant special national conditions apply these provisions are
normative, for other countries they are informative.
Clause Special national condition
5.1.3 Finland

All equipment installed in locations that are not temperature controlled shall meet their
requirements within the temperature range -40 °C to +55 °C.

__________

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EN 60728-4:2008 - 6 -
Annex ZC
(informative)

A-deviations
A-deviation: National deviation due to regulations, the alteration of which is for the time being outside
the competence of the CENELEC national member.
This European Standard does not fall under any Directive of the EC.
In the relevant CENELEC countries these A-deviations are valid instead of the provisions of the
European Standard until they have been removed.
Clause Deviation
5.3 Netherlands
Table 2 (Dutch Technical Regulations for CATV networks (Technische Voorschriften voor
Centrale Antenne Inrichtingen, 3e uitgave), 21 December 1977, which are valid for
CATV networks in accordance with Article 21 of the Dutch Telecommunications law (Stb.
1988, 520)).
The use of looped system outlets is not allowed.
__________

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IEC 60728-4
Edition 3.0 2007-08
INTERNATIONAL
STANDARD

Cable networks for television signals, sound signals and interactive services –
Part 4: Passive wideband equipment for coaxial cable networks


INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
V
ICS 33.060.40; 33.170 ISBN 2-8318-9265-1

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– 2 – 60728-4 © IEC:2007(E)
CONTENTS
FOREWORD.4
INTRODUCTION.6

1 Scope.7
2 Normative references .7
3 Terms, definitions, symbols and abbreviations.8
3.1 Terms and definitions .8
3.2 Symbols .12
3.3 Abbreviations .13
4 Methods of measurement .13
4.1 Attenuation.13
4.1.1 Test equipment.13
4.1.2 Measurement procedure .13
4.1.3 Presentation of the results.14
4.2 Isolation .14
4.2.1 Definition.14
4.2.2 Test equipment.14
4.2.3 Measurement procedure .14
4.2.4 Presentation of the results.15
4.3 Through-loss .15
4.3.1 Definition.15
4.3.2 Test equipment.15
4.3.3 Measurement procedure .15
4.3.4 Presentation of the results.15
4.4 Group delay variation .15
4.4.1 Definition.15
4.4.2 Test equipment.15
4.4.3 Method of measurement .16
4.4.4 Presentation of the result.16
4.5 Amplitude frequency response .16
4.6 Return loss.16
4.7 Hum modulation of carrier .16
4.7.1 Definition.16
4.7.2 Description of the method of measurement.17
4.7.3 Measuring procedure.18
4.7.4 Calculating the hum-modulation ratio.19
4.7.5 Presentation of the results.20
4.8 Two-carrier intermodulation measurements for second- and third-order
products .20
5 Performance requirements and recommendations .21
5.1 General performance requirements and recommendations .21
5.1.1 Safety.21
5.1.2 Electromagnetic compatibility (EMC) .21
5.1.3 Environmental .21
5.1.4 Marking .22
5.1.5 Impedance.22

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60728-4 © IEC:2007(E) – 3 –
5.1.6 Degradation of performance caused by overvoltages.22
5.2 Performance requirements and recommendations for receiver lead .22
5.3 Performance requirements and recommendations for system outlets.22
5.3.1 Safety.22
5.3.2 Quality grading .22
5.3.3 Mechanical requirements.23
5.3.4 Electrical parameters and requirements.23
5.4 Performance requirements and recommendations for splitters and taps .26
5.4.1 Description .26
5.4.2 Mechanical requirements for connectors.26
5.4.3 Electrical parameters and requirements.26
5.5 Performance requirements and recommendations for all other passive
equipment .28
5.5.1 Description .28
5.5.2 Mechanical requirements for connectors.28
5.5.3 Electrical parameters and requirements.28

Bibliography .32

Annex A (informative) Measurement errors which occur due to mismatched equipment .30
Annex B (informative) Differences in some countries .31

Figure 1 – Test set-up for the measurement of attenuation .14
Figure 2 – Test set-up for the measurement of isolation.14
Figure 3 – Measurement of through-loss .15
Figure 4 – Carrier/hum ratio.16
Figure 5 – Test set-up for power injectors .17
Figure 6 – Test set-up for passive equipment, excluding power injectors .18
Figure 7 – Oscilloscope display .18
Figure 8 – Harmonic/Intermodulation test circuit .20
Figure 9 – Types of losses of system outlets.25
Figure A.1 – Error concerning return loss measurement.30
Figure A.2 – Maximum ripple .30

Table 1 – Return loss of system outlets .23
Table 2 – Return loss of looped-through system outlets .24
Table 3 – Maximum return path signal level derived from maximum allowed
intermodulation distortion level in the downstream frequency band .26
Table 4 – Return loss of splitters and taps .26
Table 5 – Isolation of splitters .27
Table 6 – Return loss for all other passive equipment .28

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– 4 – 60728-4 © IEC:2007(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

CABLE NETWORKS FOR TELEVISION SIGNALS,
SOUND SIGNALS AND INTERACTIVE SERVICES –

Part 4: Passive wideband equipment
for coaxial cable networks


FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardisation comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardisation in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardisation (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
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 60728-4 has been prepared by technical area 5: Cable networks
for television signals, sound signals and interactive services, of IEC technical committee 100:
Audio, video and multimedia systems and equipment.
This third edition cancels and replaces the second edition published in 2000, of which it
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition.
• Subclause 3.1 includes several new or modified definitions.
• Clause 4 includes added test methods for attenuation, isolation, through-loss, group delay
variation, amplitude frequency response and two carrier intermodulation measurements for
second- and third-order products.
• Clause 5 includes updated and new performance requirements.

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60728-4 © IEC:2007(E) – 5 –
The text of this standard is based on the following documents:
FDIS Report on voting
100/1243/FDIS 100/1275/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.
For the differences existing in some countries, see Annex B.
The list of all parts of the IEC 60728 series, under the general title Cable networks for
television signals, sound signals and interactive services, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in
the data related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

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– 6 – 60728-4 © IEC:2007(E)
INTRODUCTION
Standards of the IEC 60728 series deal with cable networks including equipment and
associated methods of measurement for headend reception, processing and distribution of
television signals, sound signals and their associated data signals and for processing,
interfacing and transmitting all kinds of signals for interactive services using all applicable
transmission media.
This includes
1
• CATV -networks;
• MATV-networks and SMATV-networks;
• individual receiving networks;
and all kinds of equipment, systems and installations installed in such networks.
The extent of this standardization work is from the antennas and/or special signal source
inputs to the headend or other interface points to the network up to the terminal input.
The standardization of any user terminals (i.e., tuners, receivers, decoders, multimedia
terminals, etc.) as well as of any coaxial, balanced and optical cables and accessories thereof
is excluded.
—————————
1
This word encompasses the HFC networks used nowadays to provide telecommunications services, voice,

data, audio and video both broadcast and narrowcast.

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60728-4 © IEC:2007(E) – 7 –
CABLE NETWORKS FOR TELEVISION SIGNALS,
SOUND SIGNALS AND INTERACTIVE SERVICES –

Part 4: Passive wideband equipment
for coaxial cable networks



1 Scope
This part of IEC 60728 applies to system outlets, splitters and taps, passive single or multiple
port equipment comprising filters, attenuators, equalizers, galvanic isolators, power injectors,
cable splices, terminating resistors and transfer points, but excluding coaxial cables and
receiver leads (see 5.2).
This standard
• covers the frequency range 5 MHz to 3 000 MHz;
• identifies performance requirements for certain parameters;
• lays down data publication requirements for certain parameters;
• stipulates methods of measurements;
• introduces minimum requirements defining quality grades.
There are three grades for all passive equipment except system outlets where there is only
one.
Different networks require the same performance and, when integrating networks, upgrading
will be avoided.
Practical experience has shown that these three grades meet most of the technical
requirements necessary for supplying a minimum signal quality to the subscribers. This
classification should not be considered as a requirement but as information for users and
manufacturers on the minimum quality criteria of the material required to install networks of
different sizes. The system operator should select appropriate material to meet the minimum
signal quality at the subscriber's outlet and to optimize cost/performance, taking into account
the size of the network and local circumstances.
All requirements and published data should be understood as guaranteed values within the
specified frequency range and in well-matched conditions.
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 (all parts), Environmental testing
IEC 60417, Graphical symbols for use on equipment
NOTE IEC 60417 can be consulted on the IEC website.
IEC 60529, Degrees of protection provided by enclosures (IP Code)

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– 8 – 60728-4 © IEC:2007(E)
IEC 60617, Graphical symbols for diagrams
IEC 60728 (all parts), Cable networks for television signals, sound signals and interactive
services
NOTE The title of some of the parts of the IEC 60728 series will be changed when a new edition is published.
IEC 60966-1, Radio frequency and coaxial cable assemblies – Part 1: Generic specification –
General requirements and test methods
IEC 60966-2-4, Radio frequency and coaxial cable assemblies – Part 2-4: Detail specification
for cable assemblies for radio and TV receivers – Frequency range 0 to 3 000 MHz,
IEC 61169-2 connectors
IEC 60966-2-5, Radio frequency and coaxial cable assemblies – Part 2-5: Detail specification
for cable assemblies for radio and TV receivers – Frequency range 0 to 1 000 MHz,
IEC 61169-2 connectors
IEC 60966-2-6, Radio frequency and coaxial cable assemblies – Part 2-6: Detail specification
for cable assemblies for radio and TV receivers – Frequency range 0 to 3 000 MHz,
IEC 61169-24 connectors
IEC 61000-4-5, Electromagnetic compatibility (EMC) – Part 4-5: Testing and measurement
techniques – Surge immunity test
IEC 61000-6-1, Electromagnetic compatibility (EMC) – Part 6-1: Generic standards –
Immunity for residential, commercial and light-industrial environments
IEC 61169-1, Radio-frequency connectors – Part 1: Generic specification – General require-
ments and measuring methods
IEC 61169-2, Radio-frequency connectors – Part 2: Sectional specification – Radio-frequency
coaxial connectors of type 9,52
IEC 61169-24, Radio-frequency connectors – Part 24: Sectional specification – Radio-
frequency coaxial connectors with screw coupling, typically for use in 75 ohm cable
distribution systems (type F)
3 Terms,
...