HD 549 S1:1989
(Main)Conference systems - Electrical and audio requirements
General Information
- Abstract
Applies to conference systems and to parts of which they are composed or which are used as auxiliaries to such systems (headphones, microphones, amplification equipment). Describes the different types of conference systems with both wired and wireless systems, and specifies the basic electrical requirements of audio equipment for conference systems. Prescribes the minimum requirements for conference systems in order to ensure interchangeability and optimum performance under conditions of normal operation.
- Status
- Withdrawn
- Publication Date
- 12-Dec-1989
- Technical Committee
- CLC/TC 100X - Audio, video and multimedia systems and equipment and related sub-systems
- Drafting Committee
- IEC/TC 100 - IEC_TC_100
- Parallel Committee
- IEC/TC 100 - IEC_TC_100
- Current Stage
- 9960 - Withdrawal effective - Withdrawal
- Start Date
- 15-Sep-2021
- Completion Date
- 25-Aug-2026
- Directive
- Not Harmonized2006/95/EC - Directive 2006/95/EC of the European Parliament and of the Council of 12 December 2006 on the harmonisation of the laws of Member States relating to electrical equipment designed for use within certain voltage limits (codified version)OJ Ref: C 71/, C 71/17, C 348/03 OJ Date: 28-Nov-2013
Harmonized Standard2014/35/EU - Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment designed for use within certain voltage limitsOJ Ref: C 249/03 OJ Date: 08-Jul-2016
Not Harmonized73/23/EEC - Electrical equipment designed for use within certain voltage limitsOJ Ref: C 208
Relations
- Effective Date
- 03-Feb-2026
- Effective Date
- 03-Feb-2026
- Effective Date
- 03-Feb-2026
- Effective Date
- 03-Feb-2026
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Frequently Asked Questions
HD 549 S1:1989 is a standardization document published by CLC. Its full title is "Conference systems - Electrical and audio requirements". This standard covers: Applies to conference systems and to parts of which they are composed or which are used as auxiliaries to such systems (headphones, microphones, amplification equipment). Describes the different types of conference systems with both wired and wireless systems, and specifies the basic electrical requirements of audio equipment for conference systems. Prescribes the minimum requirements for conference systems in order to ensure interchangeability and optimum performance under conditions of normal operation.
Applies to conference systems and to parts of which they are composed or which are used as auxiliaries to such systems (headphones, microphones, amplification equipment). Describes the different types of conference systems with both wired and wireless systems, and specifies the basic electrical requirements of audio equipment for conference systems. Prescribes the minimum requirements for conference systems in order to ensure interchangeability and optimum performance under conditions of normal operation.
HD 549 S1:1989 is classified under the following ICS (International Classification for Standards) categories: 33.160.60 - Multimedia systems and teleconferencing equipment. The ICS classification helps identify the subject area and facilitates finding related standards.
HD 549 S1:1989 has the following relationships with other standards: It is inter standard links to EN 61603-3:1998, EN 60268-7:1996, EN 60268-4:2004, EN 60268-4:1999. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
HD 549 S1:1989 is associated with the following European legislation: EU Directives/Regulations: 2006/95/EC, 2014/35/EU, 2014/53/EU, 73/23/EEC. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
HD 549 S1:1989 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.