IEC 62851-3:2014

IEC 62851-3 ®
Edition 1.0 2014-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Alarm and electronic security systems – Social alarm systems –
Part 3: Local unit and controller

Systèmes d'alarme et de sécurité électroniques – Systèmes d'alarme sociale –
Partie 3: Unité locale et contrôleur

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IEC 62851-3 ®
Edition 1.0 2014-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Alarm and electronic security systems – Social alarm systems –

Part 3: Local unit and controller

Systèmes d'alarme et de sécurité électroniques – Systèmes d'alarme sociale –

Partie 3: Unité locale et contrôleur

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX W
ICS 13.320 ISBN 978-2-8322-1502-9

– 2 – IEC 62851-3:2014 © IEC 2014
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Functional requirements . 9
4.1 General . 9
4.2 Detailed functional requirements . 9
4.2.1 General . 9
4.2.2 Power source. 10
4.2.3 Inputs – Input signals from trigger devices . 10
4.2.4 Two-way speech communication . 10
4.2.5 Signal processing . 11
4.2.6 Indications . 14
4.2.7 Operating controls . 15
4.2.8 Outputs for external indications or controls . 17
4.2.9 Interconnections . 17
4.2.10 Alarm transmission . 17
5 Tests . 18
5.1 Test categories . 18
5.2 Standard atmospheric condition for testing. 18
5.3 Number of local unit and controllers used for testing . 18
5.4 General conditions for tests . 18
5.4.1 Mounting and orientation . 18
5.4.2 Electrical connections . 18
5.4.3 Test fixtures . 19
5.5 Functional tests . 19
5.5.1 General . 19
5.5.2 Input signals from trigger devices . 19
5.5.3 Local unit and controller which is powered from primary (non-
rechargeable) batteries and uses cable interconnections . 19
5.5.4 Local unit and controller which is powered from primary (non-
rechargeable) batteries and uses wire-free interconnections . 20
5.5.5 Interference monitoring of wire-free radio interconnections . 20
5.6 Wire-free radio interconnections measurements . 21
5.7 Environmental tests . 21
5.7.1 General . 21
5.7.2 Selection of tests and severities (environmental classes) . 22
5.7.3 Tests applicable to the different environmental classes . 22
5.7.4 Environmental test exposures not applicable to different types
of local unit and controllers . 22
5.7.5 Specific environmental test requirements for different types of
local unit and controllers . 24
6 Marking . 28
6.1 Information to be included in the marking . 28
6.2 Requirements for the marking . 28
7 Documentation . 28

Annex A (normative) Function, indication and timing of a local unit and controller in
relation to an alarm triggering signal . 30
Annex B (normative) Test set-up by using radio-frequency shielded test fixtures . 31
B.1 Radio-frequency shielded test fixture for the trigger device . 31
B.2 Radio-frequency shielded test fixture for the local unit and controller . 31
B.3 Connection between trigger device and local unit and controller . 31
B.4 Test set-up for testing of the interference monitoring of wire-free radio
interconnections. 32
Annex C (normative) Test method for electro-acoustical 2-way speech tests of
loudspeaker output and microphone input of the local unit . 34
C.1 Loudspeaker . 34
C.1.1 General . 34
C.1.2 Sound power . 34
C.1.3 Frequency range. 34
C.1.4 Distortion . 34
C.2 Microphone . 35
C.2.1 General . 35
C.2.2 Sensitivity . 35
C.2.3 Frequency characteristics . 35
C.2.4 Distortion . 35
Bibliography . 36

Figure A.1 – Function, indication and timing diagram of local unit and controller . 30
Figure B.1 – Radio-frequency shielded test fixtures and interconnections . 32
Figure B.2 – Test set-up for testing of the interference monitoring function . 33

Table 1 – Limits of frequency response . 11
Table 2 – Permissible time intervals by different types of fault . 13
Table 3 – Fault indications on the local unit and/or controller . 15
Table 4 – Environmental tests for fixed local unit and controller . 23
Table 5 – Envir
...