EN 50083-3:2002
(Main)Cable networks for television signals, sound signals and interactive services - Part 3: Active wideband equipment for coaxial cable networks
Cable networks for television signals, sound signals and interactive services - Part 3: Active wideband equipment for coaxial cable networks
Corrigendum to EN issued April 2006 * Identical with EN 60728-3:2006 (boomerang) * Superseded by EN 60728-3:2011
Kabelnetze für Fernsehsignale, Tonsignale und interaktive Dienste - Teil 3: Aktive Breitbandgeräte für koaxiale Kabelnetze
Réseaux de distribution par câbles pour signaux de télévision, signaux de radiodiffusion sonore et services interactifs - Partie 3: Matériels actifs à large bande utilisés dans les réseaux de distribution coaxiale
Kabelska omrežja za televizijske in zvokovne signale ter interaktivne storitve - 3. del: Aktivna širokopasovna oprema za koaksialna kabelska omrežja
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kabelska omrežja za televizijske in zvokovne signale ter interaktivne storitve - 3. del: Aktivna širokopasovna oprema za koaksialna kabelska omrežjaKabelnetze für Fernsehsignale, Tonsignale und interaktive Dienste -- Teil 3: Aktive Breitbandgeräte für koaxiale KabelnetzeRéseaux de distribution par câbles pour signaux de télévision, signaux de radiodiffusion sonore et services interactifs
-- Partie 3: Matériels actifs à large bande utilisés dans les réseaux de distribution coaxialeCable networks for television signals, sound signals and interactive services -- Part 3: Active wideband equipment for coaxial cable networks33.120.10Koaksialni kabli. ValovodiCoaxial cables. Waveguides33.060.40Kabelski razdelilni sistemiCabled distribution systemsICS:Ta slovenski standard je istoveten z:EN 50083-3:2002SIST EN 50083-3:2003en01-december-2003SIST EN 50083-3:2003SLOVENSKI
STANDARDSIST EN 50083-3:19991DGRPHãþD
EUROPEAN STANDARDEN 50083-3NORME EUROPÉENNEEUROPÄISCHE NORMApril 2002CENELECEuropean Committee for Electrotechnical StandardizationComité Européen de Normalisation ElectrotechniqueEuropäisches Komitee für Elektrotechnische NormungCentral Secretariat: rue de Stassart 35, B - 1050 Brussels© 2002 CENELEC -All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.Ref. No. EN 50083-3:2002 EICS 33.060.40Supersedes EN 50083-3:1998English versionCable networks for television signals,sound signals and interactive servicesPart 3: Active wideband equipment for coaxial cable networksRéseaux de distribution par câblespour signaux de télévision,signaux de radiodiffusion sonoreet services interactifsPartie 3: Matériels actifs à large bandeutilisés dans les réseaux de distributioncoaxialeKabelnetze für Fernsehsignale,Tonsignale und interaktive DiensteTeil 3: Aktive Breitbandgerätefür koaxiale KabelnetzeThis European Standard was approved by CENELEC on 2001-10-01. CENELEC members are bound tocomply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration.Up-to-date lists and bibliographical references concerning such national standards may be obtained onapplication to the Central Secretariat or to any CENELEC member.This European Standard exists in three official versions (English, French, German). A version in any otherlanguage made by translation under the responsibility of a CENELEC member into its own language andnotified 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, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands,Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.SIST EN 50083-3:2003
EN 50083-3: 2002- 2 -ForewordThis European Standard was prepared by CENELEC Technical Committee TC 209, "Cable networks fortelevision signals, sound signals and interactive services" on the basis of EN 50083-3:1998 and the firstamendment to EN 50083-3.The text of this first amendment was submitted to the Unique Acceptance Procedure and was approved byCENELEC on 2001-10-01 to be published as part of a second edition of EN 50083-3.The following dates were fixed:–latest date by which the EN has to be implementedat national level by publication of an identicalnational standard or by endorsement(dop)2002-10-01–latest date by which the national standards conflictingwith the EN have to be withdrawn(dow)2004-10-01Annexes designated "normative" are part of the body of the standard.Annexes designated "informative" are given for information only.In this standard, Annexes A, B, C and D are normative and Annexes E and F are informative.__________SIST EN 50083-3:2003
- 3 -EN 50083-3: 2002Content1Scope.51.1General.51.2Specific scope of this part 3.52Normative references.63Terms, definitions, symbols and abbreviations.73.1Terms and definitions.73.2Symbols.113.3Abbreviations.124Methods of measurement.134.1Linear distortion.134.2Non-linear distortion.144.3Automatic gain and slope control step response.244.4Noise figure.254.5Cross talk attenuation.264.6Signal level for digitally modulated signals.274.7Method of measurement for non-linearity of return path equipment carrying only digitalmodulated signals [Measurement of composite intermodulation noise ratio (CINR)].275Equipment requirements.295.1General requirements.295.2Safety.295.3Electromagnetic compatibility (EMC).295.4Frequency range.295.5Impedance and return loss.295.6Gain.295.7Flatness.305.8Test points.305.9Group delay.305.10Noise figure.305.11Non-linear distortion.305.12Automatic gain and slope control.315.13Hum modulation.315.14Power supply.325.15Environmental.325.16Marking.325.17Mean operating time between failure (MTBF).335.18Requirements for multiswitches.33AnnexesAnnex A (normative)
Test carriers, levels and intermodulation products.42Annex B (normative)
Checks on test equipment.44Annex C (normative)
Table C.1
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Frequency allocation plan.45Annex D (normative)
Special national conditions.46Annex E (informative)
Measurement errors which occur due to mismatched equipment.47Annex F (informative)
Examples of signals, methods of measurement and network design
for return paths.48TablesTable 1
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Return loss requirements for all equipment.34Table 2
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Correction factors where the modulation used is other than 100%.34Table 3
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Notch filter frequencies.35Table C.1
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Frequency allocation plan.45Table F.1
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Application of methods of measurement in EN 50083-3 for return path equipment.48Table F.2
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Application of methods of measurement in EN 50083-6 for return path equipment.49SIST EN 50083-3:2003
EN 50083-3: 2002- 4 -FiguresFigure 1
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Measurement of return loss.35Figure 2
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Maximum error a for measurement of return loss using V.S.W.R. bridge with directivity
D = 46 dB
and 26 dB test port return loss.35Figure 3
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Basic arrangement of test equipment for evaluation of the ratio of signal
to intermodulation product.36Figure 4
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Connection of test equipment for the measurement of non-linear distortion by composite beat.36Figure 5
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Connection of test equipment for the measurement
of composite crossmodulation.37Figure 6
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Carrier/hum ratio = 20lgdBAa.37Figure 7
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Test set-up for local-powered objects.38Figure 8
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Test set-up for remote-powered objects.38Figure 9
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Oscilloscope display.38Figure 10
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Measurement of AGC step response.39Figure 11
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Time constant Tc.39Figure 12
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Measurement of noise figure.39Figure 13
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Presentation of the result of CINR.40Figure 14
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Characteristic of the noise filter.40Figure 15
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Test setup for the non-linearity measurement.41Figure 16
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Measurement of cross talk attenuation for loop trough ports of multiswitches.41Figure A.1
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An example showing products formed when 2A
> B .42Figure A.2
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An example showing products formed when 2A
< B.42Figure A.3
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Products of the form A
B
C .43Figure E.1
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Error concerning return loss measurement.47Figure E.2
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Maximum ripple.47Figure F.1
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Spectrum of a QPSK-modulated signal.48Figure F.2a
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Loading with digital channels can be simulated with wideband noise.50Figure F.2b
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Non-linearity decreases the S/N at high levels.50Figure F.3
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Network used in the design example.50Figure F.4
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A test result measured from a real 20 dB return amplified.51Figure F.5
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The CINR curve of one amplifier is modified to represent the CINR of the whole
coaxial section of the network.52Figure F.6
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The CINR of an optical link as a function of OMI, example.53SIST EN 50083-3:2003
- 5 -EN 50083-3: 20021 Scope1.1 GeneralStandards of EN 50083 series deal with cable networks for television signals, sound signals andinteractive services including equipment, systems and installations for headend reception, processing and distribution of television and sound signals andtheir associated data signals and for processing, interfacing and transmitting all kinds of signals for interactive services using all applicable transmission media. All kinds of networks like CATV-networks, MA
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