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

Published date

23-03-2018

Publisher

European Committee for Standards - Electrical

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

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.

Committee	CLC/TC 100X
DevelopmentNote	Supersedes and Redesignates EN 61938. (03/2018)
DocumentType	Standard
PublisherName	European Committee for Standards - Electrical
Status	Current
Supersedes	EN 61938 : 2018

Standards	Relationship
IEC 61938:2013	Identical
OVE EN IEC 61938: 2018	Identical
DIN EN IEC 61938:2018-10	Identical
NEN EN IEC 61938 : 2018	Identical
CEI EN IEC 61938 : 2018	Identical
IEC 61938 : 2.0	Identical
SS-EN IEC 61938:2018	Identical
SN EN IEC 61938:2018	Identical
I.S. EN IEC 61938:2018	Identical
PN-EN IEC 61938:2018	Identical
UNE-EN IEC 61938:2018	Identical
BS EN IEC 61938:2018	Identical

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