1、 IEC 62087-4 Edition 1.0 2015-06 INTER NA TIONA L STA NDA R D Audio,video and related equipment Determination of pow er consumption Part 4:V ideo recording equipment IEC 62087-4:2015-06(en)c olourinsideCopyright International Electrotechnical Commission THIS PUBLICATION IS COPYRIGHT PROTECTED Copyri
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11、A TIONA L STA NDA R D A udio,video and related equipment Determination of pow er consumption Part 4:V ideo recording equipment INTER NA TIONAL ELECTROTECHNICAL COMMISSION ICS 33.160.10 ISBN 978-2-8322-2684-1 Registered t rademark of t he Int ernational Electrot echnical Commission W arning!Make sure
12、 that you obtained this publication from an authorized distributor.c olourinsideCopyright International Electrotechnical Commission 2 IEC 62087-4:2015 IEC 2015 CONTENTS FOREWORD.3 INTRODUCTION.5 1 Scope.6 2 Normative references.6 3 Terms,definitions and abbreviations.6 3.1 Terms and definitions.6 3.
13、2 Abbreviations.7 4 Specification of operating modes and functions.7 4.1 General.7 4.2 Auto power down function.8 5 Measuring conditions for video recorders.9 5.1 Input signal.9 5.1.1 General.9 5.1.2 RF test signal.9 5.1.3 Broadband input signal.9 5.2 Input terminals.9 5.2.1 Analogue terrestrial inp
14、ut terminal.9 5.2.2 Cable television input terminal.10 5.2.3 Digital terrestrial input terminal.10 5.2.4 Satellite input terminal.10 5.3 Measurement procedure.10 5.3.1 General measuring conditions.10 5.3.2 Stabilization.10 5.3.3 Environmental conditions.10 5.3.4 Setup.10 5.3.5 Power measurements.11
15、Bibliography.15 Figure 1 Auto power down function.14 Table 1 Operating modes and functions.8 Table 2 Matrix for multituner VRs.12 Copyright International Electrotechnical Commission IEC 62087-4:2015 IEC 2015 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ AUDIO,VIDEO AND RELATED EQUIPMENT DETERMINATIO
16、N OF POWER CONSUMPTION Part 4:Video recording 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,Tech
