IEC 61938:2018
Current
The latest, up-to-date edition.
Multimedia systems - Guide to the recommended characteristics of analogue interfaces to achieve interoperability (GMT)
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
English, English - French
12-01-2018
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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
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 |
TC 100/TA 20
|
| DevelopmentNote |
Supersedes IEC 60268-15 and IEC 60574-4 (03/2001) Stability Date: 2021. (01/2018)
|
| DocumentType |
Standard
|
| Pages |
34
|
| PublisherName |
International Electrotechnical Committee
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| UNE-EN IEC 61938:2018 | Identical |
| SN EN IEC 61938:2018 | Identical |
| CEI 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 |
| 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 |
| 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 |
| IEC 60958:1989 | Digital audio interface |
| AES 48 : 2005(R2010) | |
| IEC 60094-2:1994 | Magnetic tape sound recording and reproducing systems - Part 2: Calibration tapes |
| 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 |
| IEC 60268-5:2003+AMD1:2007 CSV | Sound system equipment - Part 5: Loudspeakers |
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