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  • EN IEC 61938:2018

    Current The latest, up-to-date edition.

    Multimedia systems - Guide to the recommended characteristics of analogue interfaces to achieve interoperability

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    Published date:  23-03-2018

    Publisher:  European Committee for Standards - Electrical

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    Table of Contents - (Show below) - (Hide below)

    FOREWORD
    INTRODUCTION
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 General conditions
    5 Power supply
    6 Interconnections
    7 Marking and symbols for marking
    8 Electrical recommended values
    9 Interoperability of microphones and amplifiers
    10 Interoperability of record-playing units
       (pick-ups) and amplifiers
    11 Interoperability of loudspeakers and amplifiers
    12 Interoperability of headphones and amplifiers
    13 Interoperability of amplifiers with other amplifiers
    Annex A (informative) - Pairing and screening of conductors
    Annex B (informative) - Phantom power variants for
            specialized applications
    Bibliography
    Annex ZA (normative) - Normative references to
             international Publications with their corresponding
             European publications

    Abstract - (Show below) - (Hide below)

    NEW!IEC 61938:2018 is available as IEC 61938:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61938:2018 gives guidance on current practice for the characteristics of multimedia analogue interfaces to achieve interoperability between equipment from different manufacturers. It is not a performance standard. Recommendations for interfaces for equipment used in vehicles, and for analogue video interfaces for broadcast and similar equipment, are not given. Refer to IEC 60958 for the interconnection of digital signals. This third edition cancels and replaces the second edition published in 2013. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:

    a) electric tolerance is standardized;

    b) recommended value of output source impedance is adjusted;

    c) value of 6 Ohms is additionally recommended to impedance-defined loudspeaker systems;

    d) values in each table are chosen with respect to the state of the art and representative of best practice in industry.

    General Product Information - (Show below) - (Hide below)

    Committee CLC/TC 100X
    Development Note Supersedes and Redesignates EN 61938. (03/2018)
    Document Type Standard
    Publisher European Committee for Standards - Electrical
    Status Current
    Supersedes

    Standards Referencing This Book - (Show below) - (Hide below)

    IEC 60038:2009 IEC standard voltages
    IEC 60268-3:2013 Sound system equipment - Part 3: Amplifiers
    EN 60268-7:2011 Sound system equipment - Part 7: Headphones and earphones
    IEC 60107-6:1989 Recommended methods of measurement on receivers for television broadcast transmissions. Part 6: Measurements under conditions different from broadcast signal standards
    IEC 61293:1994 Marking of electrical equipment with ratings related to electrical supply - Safety requirements
    IEC 60268-12:1987 Sound system equipment. Part 12: Application of connectors for broadcast and similar use
    IEC 60130-9:2011 Connectors for frequencies below 3 MHz - Part 9: Circular connectors for radio and associated sound equipment
    HD 483.11 : 200S3 SOUND SYSTEM EQUIPMENT - APPLICATION OF CONNECTORS FOR THE INTERCONNECTION OF SOUND SYSTEM COMPONENTS
    IEC 60603-11:1992 Connectors for frequencies below 3 MHz for use with printed boards - Part 11: Detail specification for concentric connectors (dimensions for free connectors and fixed connectors)
    IEC 60268-7:2010 Sound system equipment - Part 7: Headphones and earphones
    EN 60094-2:1995 Magnetic tape sound recording and reproducing systems - Part 2: Calibration tapes
    EN 60268-5:2003/A1:2009 SOUND SYSTEM EQUIPMENT - PART 5: LOUDSPEAKERS
    EN 60268-12:1995/A2:1995 SOUND SYSTEM EQUIPMENT - APPLICATION OF CONNECTORS FOR BROADCAST AND SIMILAR USE
    IEC 60094-2:1994 Magnetic tape sound recording and reproducing systems - Part 2: Calibration tapes
    EN 60268-3:2013 Sound system equipment - Part 3: Amplifiers
    HD 483.1 : 200S2 SOUND SYSTEM EQUIPMENT - GENERAL
    IEC 60268-1:1985 Sound system equipment. Part 1: General
    ISO/IEC 2382-9:1995 Information technology Vocabulary Part 9: Data communication
    ISO 7000:2014 Graphical symbols for use on equipment Registered symbols
    IEC 60050-723:1997 International Electrotechnical Vocabulary (IEV) - Part 723: Broadcasting: Sound, television, data
    IEC 60268-11:1987 Sound system equipment. Part 11: Application of connectors for the interconnection of sound system components
    IEC 62368-1:2014 Audio/video, information and communication technology equipment - Part 1: Safety requirements
    IEC 60807-9:1993 Rectangular connectors for frequencies below 3 MHz - Part 9: Detail specification for a range of peritelevision connectors
    EN 60038 : 2011 CENELEC STANDARD VOLTAGES (IEC 60038:2009, MODIFIED)
    IEC 60268-5:2003+AMD1:2007 CSV Sound system equipment - Part 5: Loudspeakers
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