SIST EN 60728-6:2004
(Main)Cable networks for television signals, sound signals and interactive services -- Part 6: Optical equipment
Cable networks for television signals, sound signals and interactive services -- Part 6: Optical equipment
Lays down the measuring methods, performance requirements and data publication requirements of optical equipment of cable networks for for television signals, sound signals and interactive services.
Kabelnetze für Fernsehsignale, Tonsignale und interaktive Dienste -- Teil 6: Optische Geräte
Réseaux de distribution par câbles pour signaux de télévision, signaux de radiodiffusion sonore et services interactifs -- Partie 6 : Matériels optiques
Lays down the measuring methods, performance requirements and data publication requirements of optical equipment of cable networks for for television signals, sound signals and interactive services.
Kabelska omrežja za televizijske signale, zvokovne signale in interaktivne storitve – 6. del: Optična oprema (IEC 60728-6:2003)
General Information
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Standards Content (Sample)
SLOVENSKI SIST EN 60728-6:2004
STANDARD
september 2004
Kabelska omrežja za televizijske signale, zvokovne signale in interaktivne
storitve – 6. del: Optična oprema (IEC 60728-6:2003)
Cable networks for television signals, sound signals and interactive services - Part
6: Optical equipment (IEC 60728-6:2003)
ICS 33.060.40 Referenčna številka
SIST EN 60728-6:2004(en)
© Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno
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EUROPEAN STANDARD EN 60728-6
NORME EUROPÉENNE
EUROPÄISCHE NORM October 2003
ICS 33.060.40;33.160.99 Supersedes EN 50083-6:1997
English version
Cable networks for television signals,
sound signals and interactive services
Part 6: Optical equipment
(IEC 60728-6:2003)
Réseaux de distribution par câbles Kabelnetze für Fernsehsignale,
pour signaux de télévision, Tonsignale und interaktive Dienste
signaux de radiodiffusion sonore Teil 6: Optische Geräte
et services interactifs (IEC 60728-6:2003)
Partie 6: Matériels optiques
(CEI 60728-6:2003)
This European Standard was approved by CENELEC on 2003-10-01. 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 three official versions (English, French, 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, Czech Republic,
Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and 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
© 2003 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60728-6:2003 E
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EN 60728-6:2003 - 2 -
Foreword
The text of document 100/680/FDIS, future edition 2 of IEC 60728-6, prepared by 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 60728-6 on 2003-10-01.
This European Standard supersedes EN 50083-6:1997.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2004-07-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2006-10-01
Annexes designated "normative" are part of the body of the standard.
Annexes designated "informative" are given for information only.
In this standard, annex ZA is normative and annexes A and B are informative.
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 60728-6:2003 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 60793-2-50 NOTE Harmonized as EN 60793-2-50:2002 (not modified).
IEC 60825-1 NOTE Harmonized as EN 60825-1:1994 (not modified).
IEC 61290-1-1 NOTE Harmonized as EN 61290-1-1:1998 (not modified).
IEC 61290-1-2 NOTE Harmonized as EN 61290-1-2:1998 (not modified).
__________
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- 3 - EN 60728-6:2003
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
This European Standard incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions of any
of these publications apply to this European Standard only when incorporated in it by amendment or
revision. For undated references the latest edition of the publication referred to applies (including
amendments).
NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
Publication Year Title EN/HD Year
1) 2)
IEC 60068-1 - Environmental testing EN 60068-1 1994
Part 1: General and guidance
IEC 60068-2 series Part 2: Tests EN 60068-2 series
1) 2)
IEC 60169-2 - Radio-frequency connectors HD 134.2 S2 1984
Part 2: Coaxial unmatched connector
1) 2)
IEC 60169-24 - Part 24: Radio-frequency coaxial EN 60169-24 1993
connectors with screw coupling,
typically for use in 75 ohm cable
distribution systems (Type F)
IEC 60417 2002 Graphical symbols for use on equipment- -
database
1) 2)
IEC 60529 - Degrees of protection provided by EN 60529 1991
enclosures (IP Code) + corr. May 1993
IEC 60617 series Graphical symbols for diagrams - -
database
1)
IEC 60728-1 - Cabled distribution systems for - -
television and sound signals
Part 1: Methods of measurement and
system performance
1)
IEC 60728-2 - Part 2: Electromagnetic compatibility for - -
equipment
1)
IEC 60728-3 - Part 3: Active coaxial wideband - -
distribution equipment
1)
Undated reference.
2)
Valid edition at date of issue.
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EN 60728-6:2003 - 4 -
Publication Year Title EN/HD Year
1) 2)
IEC 61280-2-2 - Fibre optic communication subsystem EN 61280-2-2 1999
basic test procedures
Part 2-2: Test procedures for digital
systems - Optical eye pattern,
waveform, and extinction ratio
1) 2)
IEC 61280-4-2 - Part 4-2: Fibre optic cable plant - EN 61280-4-2 1999
Single-mode fibre optic cable plant
attenuation
1)
IEC/TR 61282-4 - Fibre optic communication system - -
design guides
Part 4: Accomodation and utilization of
non-linear effects
1) 2)
IEC 61290-1-3 - Optical fibre amplifiers - Basic EN 61290-1-3 1998
specification
Part 1-3: Test methods for gain
parameters - Optical power meter
1) 2)
IEC 61290-3 - Part 3: Test methods for noise figure EN 61290-3 2000
parameters
1) 2)
IEC 61290-3-2 - Part 3-2: Test methods for noise figure EN 61290-3-2 2003
parameters - Electrical spectrum
analyzer method
IEC 61290-5 series Part 5: Test methods for reflectance EN 61290-5 series
parameters
1) 2)
IEC 61291-1 - Optical fibre amplifiers EN 61291-1 1998
Part 1: Generic specification
1)
IEC/TR3 61931 - Fibre optic - Terminology - -
IEC 80416 series Basic principles for graphical symbols EN 80416 series
for use on equipment
1)
ITU-G.692 - Optical interfaces for multichannel - -
systems with optical amplifiers
EN 300019-1-3 - Environmental Engineering (EE) - - -
Environmental conditions and
environmental tests for
telecommunications equipment
Part 1-3: Classification of environmental
conditions - Stationery use at
weatherprotected locations
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INTERNATIONAL IEC
STANDARD 60728-6
Second edition
2003-07
Cable networks for television signals,
sound signals and interactive services –
Part 6:
Optical equipment
© 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: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
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International Electrotechnical Commission
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For price, see current catalogue
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– 2 – 60728-6 ¤ IEC:2003(E)
CONTENTS
FOREWORD . 4
INTRODUCTION .6
1 Scope . 7
2 Normative references. 7
3 Terms, definitions, symbols and abbreviations. 8
4 Methods of measurement.17
4.1 General measurement requirements .17
4.2 Optical power.17
4.3 Loss, isolation, directivity and coupling ratio .18
4.4 Return loss .19
4.5 Saturation output power of an optical amplifier .20
4.6 Polarization dependent loss .21
4.7 Centroidal wavelength and spectral width under modulation.22
4.8 Linewidth and chirping of transmitters with single mode lasers.23
4.9 Optical modulation index .25
4.10 Reference output level of an optical receiver .26
4.11 Slope and flatness .27
4.12 Composite second order distortion (CSO) of optical transmitters .29
4.13 Composite triple beats (CTB) of optical transmitters .30
4.14 Composite crossmodulation of optical transmitters .31
4.15 Receiver intermodulation.33
4.16 CSO of optical amplifiers.36
4.17 CTB of optical amplifiers .36
4.18 Carrier-to-noise ratio.36
4.19 Method for combined measurement of relative intensity noise (RIN), optical
modulation index and equivalent input noise current .40
4.20 Noise figure of optical amplifiers .42
4.21 Influence of fibre.43
4.22 SBS threshold.43
5 Universal performance requirements and recommendations .44
5.1 Safety.44
5.2 Electromagnetic compatibility (EMC) .44
5.3 Environmental.44
5.4 Marking .45
6 Active equipment .45
6.1 Optical downlink transmitters .45
6.2 Optical uplink transmitters.47
6.3 Optical receivers .49
6.4 Optical amplifiers .51
7 Passive equipment.52
7.1 Connectors and splices .52
7.1.1 Data publication requirements .52
Annex A (informative) A simplified method of measurement for return loss.53
Annex B (informative) Product specification worksheets for optical amplifiers.55
Bibliography .58
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60728-6 ¤ IEC:2003(E) – 3 –
Figure 1 – Measurement of optical power.18
Figure 2 – Measurement of optical loss, directivity and isolation.19
Figure 3 – Measurement of the optical return loss.20
Figure 4 – Optical saturation output power .21
Figure 5 – Measurement of the polarization dependent loss .21
Figure 6 – Measurement of central wavelength and spectral width under modulation .22
Figure 7 – Measurement of the chirping and the linewidth of transmitters .24
Figure 8 – Measurement of the optical modulation index .26
Figure 9 – Measurement of the reference output level of an optical receiver .27
Figure 10 – Measurement of the frequency range and flatness.28
Figure 11 – Evaluation of the slope.28
Figure 12 – Evaluating the flatness .29
Figure 13 – Device under test for measuring CSO of optical transmitters .30
Figure 14 – Device under test for measuring CTB of optical transmitters .31
Figure 15 – Arrangement for measuring composite crossmodulation of optical transmitters .32
Figure 16 – Arrangement of test equipment for measuring receiver intermodulation.35
Figure 17 – System with internal noise sources.36
Figure 18 – PIN diode receiver .37
Figure 19 – Optical transmission system under test .38
Figure 20 – Arrangement of test equipment for carrier-to-noise measurement .38
Figure 21 – Measurement set-up for determination of the noise parameters and the
optical modulation index .42
Figure 22 – Arrangement for measuring the SBS threshold .44
Figure 23 – Classification of uplink transmitters .48
Figure A.1 – Test set-up for calibration .53
Figure A.2 – Measurement of the optical power of the light source .54
Figure A.3 – Test set-up for device under test.54
Figure A.4 – Measurement of the optical power at port A.54
Table 1 – Noise correction factors C for different noise level differences D.40
n
Table 2 – Data publication requirements for optical downlink transmitters .46
Table 3 – Recommendations for optical downlink transmitters.46
Table 4 – Requirements for optical downlink transmitters.47
Table 5 – Data publication requirements for optical uplink transmitters.48
Table 6 – Recommendations for optical uplink transmitters .49
Table 7 – Requirements for optical uplink transmitters .49
Table 8 – Classification of optical receivers .50
Table 9 – Data publication requirements for optical receivers .50
Table 10 – Recommendations for optical receivers .50
Table 11 – Performance requirements for optical receivers .51
Table B.1 – Minimum list of relevant parameters of power amplifiers to be specified for
analogue applications .55
Table B.2 – Minimum list of relevant parameters of line amplifiers to be specified for
analogue applications .56
Table B.3 – Minimum list of relevant parameters of optically amplified transmitters
(OAT) to be specified for analogue applications .57
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– 4 – 60728-6 ¤ IEC:2003(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
CABLE NETWORKS FOR TELEVISION SIGNALS,
SOUND SIGNALS AND INTERACTIVE SERVICES –
Part 6: Optical equipment
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,
Technical Reports, 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 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
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 60728-6 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 second edition cancels and replaces the first edition published in 2001 of which it
constitutes a technical revision.
The text of this standard is based on
FDIS Report on voting
100/680/FDIS 100/697/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.
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60728-6 ¤ IEC:2003(E) – 5 –
The committee has decided that this publication remains valid until 2006. At this date, in
accordance with the committee’s decision, the publication will be:
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
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– 6 – 60728-6 ¤ IEC:2003(E)
INTRODUCTION
Standards of the IEC 60728 series deal with cable networks for television signals, sound
signals and interactive services including equipment, systems and installations:
• for headend-reception, processing and distribution of sound and television signals and their
associated data signals, and
• for processing, interfacing and transmitting all kinds of interactive multimedia signals using
all applicable transmission media.
They cover all kinds of networks that convey modulated RF carriers such as
• CATV-networks;
• MATV-networks and SMATV-networks;
• individual receiving networks;
and all kinds of equipment, systems and installations installed in such networks.
The scope of these standards extends from antennas and special signal source inputs to
headend or other interface points, to networks as a whole up through system outlets, or
terminal inputs where no system outlet exists.
The standardization of any user terminals (i.e. tuners, receivers, decoders, multimedia
terminals, etc.) is excluded.
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60728-6 ¤ IEC:2003(E) – 7 –
CABLE NETWORKS FOR TELEVISION SIGNALS,
SOUND SIGNALS AND INTERACTIVE SERVICES –
Part 6: Optical equipment
1 Scope
This part of IEC 60728 lays down the measuring methods, performance requirements and data
publication requirements of optical equipment of cable networks for television signals, sound
signals and interactive services.
This standard
• applies to all optical transmitters, receivers, amplifiers, directional couplers, isolators,
multiplexing devices, connectors and splices used in cable networks;
• covers the frequency range 5 MHz to 3 000 MHz;
NOTE The upper limit of 3 000 MHz is an example, but not a strict value. The frequency range or ranges, over
which the equipment is specified, shall be published.
• identifies guaranteed performance requirements for certain parameters;
• lays down data publication requirements with guaranteed performance;
• describes methods of measurement for compliance testing.
All requirements and published data relate to minimum performance levels within the specified
frequency range and in well-matched conditions as might be applicable to cable networks for
television signals, sound signals and interactive services.
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, (all parts), Environmental testing – Part 2: Tests
IEC 60169-2, Radio-frequency connectors – Part 2: Coaxial unmatched connector
IEC 60169-24, Radio-frequency connectors – Part 24: Radio-frequency coaxial connectors with
screw coupling, typically for use in 75 ohm cable distribution systems (Type F)
*
IEC 60417-DB:2002 , Graphical symbols for use on equipment
IEC 60529, Degrees of protection provided by enclosures (IP Code)
IEC 60617 (all parts) [DB]*, Graphical symbols for diagrams
___________
*
“DB” refers to the IEC on-line database.
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– 8 – 60728-6 ¤ IEC:2003(E)
IEC 60728-1, Cabled distribution systems for television and sound signals – Part 1: Methods of
measurement and system performance
IEC 60728-2, Cabled distribution systems for television and sound signals – Part 2:
Electromagnetic compatibility of equipment
IEC 60728-3, Cabled distribution systems for television and sound signals – Part 3: Active
coaxial wideband distribution equipment
IEC 61280-2-2, Fibre optic communication subsystem basic test procedures – Part 2-2: Test
procedures for digital systems – Optical eye pattern, waveform, and extinction ratio
IEC 61280-4-2, Fibre optic communication subsystem basic test procedures – Part 4-2: Fibre
optic cable plant – Single-mode fibre optic cable plant attenuation
IEC 61282-4, Fibre optic communication system design guides – Part 4: Guideline to
accommodate and utilize nonlinear effects in single-mode fibre optic systems
IEC 61290-1-3, Optical fibre amplifiers – Basic specification – Part 1-3: Test methods for gain
parameters – Optical power meter
IEC 61290-3, Optical fibre amplifiers – Basic specification – Part 3-1: Test methods for noise
figure parameters
IEC 61290-3-2, Optical fibre amplifiers – Part 3-2: Test methods for noise figure parameters –
Electrical spectrum analyzer
IEC 61290-5, Optical fibre amplifiers – Basic specification – Part 5: Test methods for
reflectance parameters
IEC 61291-1, Optical fibre amplifiers – Part 1: Generic specification
IEC 61931, Fibre optics – Terminology
IEC 80416, Basic principles for graphical symbols for use on equipment
ITU G.692, Optical interfaces for multichannel systems with optical amplifiers
EN 300019-1-3, Environmental Engineering (EE); Environmental conditions and environmental
tests for telecommunications equipment; Part 1-3: Classification of environmental conditions;
Stationary use at weatherprotected locations
3 Terms, definitions, symbols and abbreviations
3.1 Terms and definitions
For the purposes of this document, the definitions given in IEC 60728-1, IEC 61931 and the
following terms and definitions apply.
3.1.1
optical transmitting unit; optical transmitter; Tx (abbreviation)
transmit fibre optic terminal device accepting at its input port an electrical signal and providing
at its output port an optical carrier modulated by that input signal
NOTE For the purposes of this standard, optical transmitters may have more than one input port accepting
electrical RF signals.
[IEC 61931, definition 2.9.6]
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60728-6 ¤ IEC:2003(E) – 9 –
3.1.2
optical receiving unit; optical receiver; Rx (abbreviation)
receive fibre optic terminal device accepting at its input port a modulated optical carrier, and
providing at its output port the corresponding demodulated electrical signal (with the associated
clock, if digital)
NOTE For the purposes of this standard, optical receivers may have more than one output port providing electrical
RF signals.
[IEC 61931, definition 2.9.7]
3.1.3
optical amplifier
optical waveguide device containing a suitably pumped, active medium which is able to amplify
an optical signal
[IEC 61931, definition 2.7.75]
3.1.4
(optical) isolator
two port non-reciprocal optical device intended to suppress backward reflection, while having
minimum insertion loss in
...
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