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HD 549 S1:1989 Standard

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  Keywords:

#conference #equipment #applies #electrical #requirements

  Directive

Low voltage (LVD) Directive (2014/35/EU)

  Last Official Journal reference

Tuesday 22nd of July 2025

  Description:

Conference systems - Electrical and audio requirements

  Purpose

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.

  Publication

Wednesday 20th of April 2016

  Related Standards

EN 61310-2:2008

Low voltage (LVD) Directive (2014/35/EU)

Safety of machinery - Indication, marking and actuation - Part 2: Requirements for marking

EN 61869-1:2009

Low voltage (LVD) Directive (2014/35/EU)

Instrument transformers - Part 1: General requirements

EN 61558-2-12:2011

Low voltage (LVD) Directive (2014/35/EU)

Safety of transformers, reactors, power supply units and combinations thereof - Part 2-12: Particular requirements and tests for c...

EN 61558-2-13:2009

Low voltage (LVD) Directive (2014/35/EU)

Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V - Part 2-13: Particula...

EN 61558-2-14:2013

Low voltage (LVD) Directive (2014/35/EU)

Safety of transformers, reactors, power supply units and combination thereof - Part 2-14: Particular requirements and tests for va...

EN 61558-2-15:2012

Low voltage (LVD) Directive (2014/35/EU)

Safety of transformers, reactors, power supply units and combinations thereof - Part 2-15: Particular requirements and tests for ...

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