1 Scope
2 Normative references
3 Terms and definitions
3.1 Equipment for audio and video door-entry systems
3.2 Functions
3.3 Environmental conditions
3.4 Other definitions
4 General specifications
4.1 Safety requirements
4.2 EMC requirements
4.3 Minimum functions
5 Audio specifications
5.1 Larsen effect
5.2 Frequency response
5.3 Acoustic pressure levels in normal condition
5.4 Call level
5.5 Safety acoustic pressure levels
6 Video specifications - General requirements
7 Environmental requirements
8 'Anti-vandalism' protection requirements
9 Documentation
Annex A (normative) - Test methods
A.1 General
A.2 Definitions
A.3 Audio tests
A.4 Acoustic stability (Larsen effect) test
A.5 Acoustic call indicator
A.6 Video tests
A.7 Anti-vandalism tests
Bibliography