BS EN 55032:2015+A11:2020
$215.11
Electromagnetic compatibility of multimedia equipment. Emission Requirements
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 110 |
NOTE Blue coloured text within this document indicates text that will be aligned with the future MME immunity publication CISPR 35.
This International Standard applies to multimedia equipment (MME) as defined in 3.1.24 and having a rated r.m.s. AC or DC supply voltage not exceeding 600 V.
Equipment within the scope of CISPR 13 or CISPR 22 is within the scope of this publication.
MME intended primarily for professional use is within the scope of this publication.
The radiated emission requirements in this standard are not intended to be applicable to the intentional transmissions from a radio transmitter as defined by the ITU, nor to any spurious emissions related to these intentional transmissions.
Equipment, for which emission requirements in the frequency range covered by this publication are explicitly formulated in other CISPR publications (except CISPR 13 and CISPR 22), are excluded from the scope of this publication.
In-situ testing is outside the scope of this publication.
This publication covers two classes of MME (Class A and Class B). The MME classes are specified in Clause 4.
The objectives of this publication are:
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to establish requirements which provide an adequate level of protection of the radio spectrum, allowing radio services to operate as intended in the frequency range 9 kHz to 400 GHz;
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to specify procedures to ensure the reproducibility of measurement and the repeatability of results.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 9 | CONTENTS |
| 15 | FOREWORD |
| 17 | 1 Scope 2 Normative references |
| 18 | 3 Terms, definitions and abbreviations 3.1 Terms and definitions |
| 22 | Figures Figure 1 โ Examples of ports |
| 23 | 3.2 Abbreviations |
| 24 | 4 Classification of equipment |
| 25 | 5 Requirements 6 Measurements 6.1 General 6.2 Host systems and modular EUT |
| 26 | 6.3 Measurement procedure Figure 2 โ Example of a host system with different types of modules |
| 27 | 7 Equipment documentation 8 Applicability |
| 28 | 9 Test report Tables Table 1 โ Required highest frequency for radiated measurement |
| 29 | 10 Compliance with this publication 11 Measurement uncertainty |
| 30 | Annexes Annex A (normative) Requirements A.1 General Figure A.1 โ Graphical representation of the limits for the AC mainspower port defined in Table A.10 |
| 31 | A.2 Requirements for radiated emissions |
| 32 | Table A.1 โ Radiated emissions, basic standards and the limitation of the use of particular methods |
| 33 | Table A.2 โ Requirements for radiated emissions at frequencies up to 1 GHz for class A equipment Table A.3 โ Requirements for radiated emissions at frequencies above 1 GHz for class A equipment Table A.4 โ Requirements for radiated emissions at frequencies up to 1 GHz for class B equipment |
| 34 | Table A.5 โ Requirements for radiated emissions at frequencies above 1 GHz for class B equipment Table A.6 โ Requirements for radiated emissions from FM receivers |
| 35 | A.3 Requirements for conducted emissions Table A.7 โ Requirements for outdoor units of home satellite receiving systems |
| 36 | Table A.8 โ Conducted emissions, basic standards and the limitation of the use of particular methods Table A.9 โ Requirements for conducted emissions from the AC mains power ports of Class A equipment |
| 37 | Table A.10 โ Requirements for conducted emissions from the AC mains power ports of Class B equipment Table A.11 โ Requirements for asymmetric mode conducted emissions from Class A equipment |
| 38 | Table A.12 โ Requirements for asymmetric mode conducted emissions from Class B equipment |
| 39 | Table A.13 โ Requirements for conducted differential voltage emissions from Class B equipment |
| 40 | Annex B (normative) Exercising the EUT during measurement and test signal specifications B.1 General B.2 Exercising of EUT ports B.2.1 Audio signals B.2.2 Video signals |
| 41 | B.2.3 Digital broadcast signals B.2.4 Other signals Table B.1 โ Methods of exercising displays and video ports Table B.2 โ Display and video parameters |
| 42 | Table B.3 โ Methods used to exercise ports |
| 43 | Table B.4 โ Examples of digital broadcast signal specifications |
| 45 | Annex C (normative) Measurement procedures, instrumentation and supporting information C.1 General C.2 Instrumentation and supporting information C.2.1 General C.2.2 Using CISPR 16 series as the basic standard |
| 46 | Figure C.1 โ Measurement distance |
| 47 | Figure C.2 โ Boundary of EUT, Local AE and associated cabling |
| 48 | C.2.3 EUT cycle time and measurement dwell time C.3 General measurement procedures C.3.1 Overview Figure C.3 โ Decision tree for using different detectors with quasi peak and average limits |
| 49 | Figure C.4 โ Decision tree for using different detectors with peak and average limits Figure C.5 โ Decision tree for using different detectors with a quasi-peak limit |
| 50 | C.3.2 Prescan measurements C.3.3 Formal measurements C.3.4 Specifics for radiated emission measurements C.3.5 Specifics for conducted emission measurements on the AC mains power ports C.3.6 Specifics for conducted emission measurements on analogue/digital data ports |
| 51 | C.3.7 Specifics for conducted emission measurements on broadcast receiver tuner ports C.3.8 Specifics for conducted emission measurements on RF modulator output ports C.4 MME-related measurement procedures C.4.1 Measurement of conducted emissions at analogue/digital data ports |
| 52 | Table C.1 โ Analogue/digital data port emission procedure selection |
| 53 | Table C.2 โ LCL values |
| 57 | C.4.2 Measurement of emission voltages at a TV/FM broadcast receiver tuner ports in the frequency range 30 MHz to 2,15 GHz Figure C.6 โ Calibration fixture Figure C.7 โ Arrangement for measuring impedance in accordance with C.4.1.7 |
| 58 | C.4.3 Measurement of the wanted signal and emission voltage at RF modulator output ports, in the frequency range 30 MHz to 2,15 GHz Figure C.8 โ Circuit arrangement for measurement of emission voltages at TV/FM broadcast receiver tuner ports |
| 59 | C.4.4 Additional Normalized Site Attenuation (NSA) values Figure C.9 โ Circuit arrangement for the measurement of the wanted signal and emission voltage at the RF modulator output port of an EUT |
| 60 | Table C.3 โ 5 m OATS/SAC NSA values |
| 61 | Annex D (normative) Arrangement of EUT, local AE and associated cabling D.1 Overview D.1.1 General Table D.1 โ Measurement arrangements of EUT |
| 64 | Table D.2 โ Arrangement spacing, distances and tolerances |
| 65 | D.1.2 Table-top arrangement D.1.3 Floor standing arrangement |
| 66 | D.1.4 Combinations of table-top and floor standing EUT arrangement D.1.5 Arrangements for radiated measurement in a FAR D.2 MME-related conditions for conducted emission measurement D.2.1 General |
| 67 | D.2.2 Specific conditions for table-top equipment |
| 68 | D.2.3 Specific requirements for floor standing equipment D.2.4 Specific requirements for combined table-top and floor standing equipment D.3 MME-related requirements for radiated measurement D.3.1 General D.3.2 Requirements for table-top equipment |
| 69 | Figure D.1 โ Example measurement arrangement for table-top EUT (conducted and radiated emission) (top view) |
| 70 | Figure D.2 โ Example measurement arrangement for table-top EUT (conducted emission measurement โ alternative 1) |
| 71 | Figure D.3 โ Example measurement arrangement for table-top EUT (conducted emission measurement โ alternative 2) Figure D.4 โ Example measurement arrangement for table-top EUT measuringin accordance with C.4.1.6.4 |
| 72 | Figure D.5 โ Example measurement arrangement for table-top EUT (conducted emission measurement โ alternative 2, showing AAN position) |
| 73 | Figure D.6 โ Example measurement arrangement for floor standing EUT (conducted emission measurement) |
| 74 | Figure D.7 โ Example measurement arrangement for combinations of EUT (conducted emission measurement) Figure D.8 โ Example measurement arrangement for table-top EUT (radiated emission measurement) |
| 75 | Figure D.9 โ Example measurement arrangement for floor standing EUT (radiated emission measurement) |
| 76 | Figure D.10 โ Example measurement arrangement for combinations of EUT (radiated emission measurement) |
| 77 | Figure D.11 โ Example measurement arrangement for tabletop EUT (radiated emission measurement within a FAR) |
| 78 | Figure D.12 โ Example cable configuration and EUT height (radiated emission measurement within a FAR) |
| 79 | Annex E (informative) Prescan measurements |
| 80 | Annex F (informative) Test report contents summary Table F.1 โ Summary of information to include in a test report |
| 81 | Annex G (informative) Support information for the measurement procedures defined in C.4.1.1 G.1 Schematic diagrams of examples of asymmetric artificial networks Figure G.1 โ Example AAN for use with unscreened single balanced pairs |
| 82 | Figure G.2 โ Example AAN with high LCL for use with either one or two unscreened balanced pairs |
| 83 | Figure G.3 โ Example AAN with high LCL for use with one, two, three, or four unscreened balanced pairs |
| 84 | Figure G.4 โ Example AAN, including a 50 ฮฉ source matching network at the voltage measuring port, for use with two unscreened balanced pairs |
| 85 | Figure G.5 โ Example AAN for use with two unscreened balanced pairs |
| 86 | Figure G.6 โ Example AAN, including a 50 ฮฉ source matching network at the voltage measuring port, for use with four unscreened balanced pairs |
| 87 | Figure G.7 โ Example AAN for use with four unscreened balanced pairs |
| 88 | Figure G.8 โ Example AAN for use with coaxial cables, employing an internal common mode choke created by bifilar winding an insulated centre-conductor wire and an insulated screen-conductor wire on a common magnetic core (for example, a ferrite toroid) Figure G.9 โ Example AAN for use with coaxial cables, employing an internal common mode choke created by miniature coaxial cable (miniature semi-rigid solid copper screen or miniature double-braided screen coaxial cable) wound on ferrite toroids |
| 89 | Figure G.10 โ Example AAN for use with multi-conductor screened cables, employing an internal common mode choke created by multifilar winding multiple insulated signal wires and an insulated screen-conductor wire on a common magnetic core (for example, a ferrite toroid) |
| 90 | G.2 Rationale for emission measurements and procedures for wired network ports G.2.1 Limits Figure G.11 โ Example AAN for use with multi-conductor screened cables, employing an internal common mode choke created by winding a multi-conductor screened cable on ferrite toroids |
| 91 | G.2.2 Combination of current probe and CVP Table G.1 โ Summary of advantages and disadvantagesof the procedures described in C.4.1.6 |
| 92 | G.2.3 Basic ideas of the CVP G.2.4 Combination of current and voltage limit |
| 93 | Figure G.12 โ Basic circuit for considering the limitswith defined common mode impedance of 150 ฮฉ Figure G.13 โ Basic circuit for the measurement with unknown common mode impedance |
| 94 | G.2.5 Ferrite requirements for use in C.4.1.1 Figure G.14 โ Impedance layout of the components in the method described in C.4.1.6.3 |
| 96 | Figure G.15 โ Basic measurement setup to measure combined impedanceof the 150 ฮฉ and ferrites |
| 97 | Annex H (normative) Supporting information for the measurement of outdoor unit of home satellite receiving systems H.1 Rationale H.2 General Table H.1 โ Derivation of the limit within ยฑ 7ยฐ of the main beam axis |
| 98 | H.3 Operation conditions H.4 Specific requirements for LO measurement |
| 99 | H.5 EUT arrangements Figure H.1 โ Description of ยฑ7ยฐ of the main beam axis of the EUT |
| 100 | Figure H.2 โ Example measurement arrangements of transmit antenna for the wanted signal |
| 101 | Annex I (informative) Other test methods and associated limits for radiated emissions I.1 General I.2 Procedures for radiated emission measurements using a GTEM or RVC Table I.1 โ Radiated emissions, basic standards and the limitation of the use of GTEM and RVC methods |
| 102 | Table I.2 โ Proposed limits for radiated emissions at frequencies up to 1 GHz for Class A equipment, for GTEM Table I.3 โ Proposed limits for radiated emission for frequencies above 1 GHz for Class A equipment, for GTEM Table I.4 โ Proposed limits for radiated emission for frequencies above 1 GHz for Class A equipment, for RVC |
| 103 | I.3 Additional measurement procedure information I.3.1 General I.3.2 Specific considerations for radiated emission measurements using a GTEM I.3.3 Specific considerations for radiated emission measurements using an RVC Table I.5 โ Proposed limits for radiated emissions at frequencies up to 1 GHz for Class B equipment, for GTEM Table I.6 โ Proposed limits for radiated emission for frequencies above 1 GHz for Class B equipment, for GTEM Table I.7 โ Proposed limits for radiated emission for frequencies above 1 GHz for Class B equipment, for RVC |
| 104 | I.4 Use of a GTEM for radiated emission measurements I.4.1 General I.4.2 EUT layout Figure I.1 โ Typical GTEM side sectional view showing some basic parts |
| 105 | I.4.3 GTEM, measurements above 1 GHz Figure I.2 โ Typical GTEM plan sectional view showing floor layout Figure I.3 โ Typical EUT mounting for combination of modules being measured |
| 106 | I.4.4 Uncertainties I.5 Specific EUT arrangement requirements for radiated emission measurements above 1 GHz using an RVC I.6 Reference documents Figure I.4 โ Overview of the reverberation chamber for radiated emission measurement |
| 108 | Bibliography |
