Building intercom systems - Part 3-2: Application guidelines - Advanced security building intercom systems (ASBIS)

IEC 62820-3-2:2018 describes the basic application requirements for Advanced Security Building Intercom Systems (ASBIS) in public and private buildings with advanced safety and security needs. ASBIS are also used to meet the requirements of the Local Regulations of Workplace Safety and/or other relevant local regulations, in particular, protecting the life and limb of employees and all persons in the building, taking into account the inclusion of people with disabilities (e.g to achieve barrier-free access or calls for help) where required by local applicable law. The recommendations and requirements of IEC 62820-3-1 are mandatory for this document.

Systèmes d'interphone de bâtiment - Partie 3-2: Lignes directrices d'application - Systèmes d'interphone de bâtiment à sécurité avancée (ASBIS)

L'IEC 62820-3-2:2018 décrit les exigences d'application de base des systèmes d'interphone de bâtiment à sécurité avancée (ASBIS) installés dans les bâtiments publics ou privés ayant des besoins en matière de sûreté et de sécurité avancées. Les systèmes ASBIS sont également utilisés pour satisfaire aux exigences des règlements locaux en matière de sécurité au travail et/ou d'autres règlements locaux pertinents, en particulier, la protection de la vie et de l'intégrité physique des employés et de toutes les personnes présentes dans le bâtiment, sans oublier les personnes handicapées (pour prévoir un accès sans obstacle ou des moyens d'appeler à l'aide, par exemple) si cela est exigé par la loi locale applicable. Les recommandations et exigences de l'IEC 62820-3-1 sont obligatoires pour la présente norme.

General Information

Status
Published
Publication Date
05-Feb-2018
Current Stage
PPUB - Publication issued
Start Date
06-Feb-2018
Completion Date
09-Mar-2018
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Standard
IEC 62820-3-2:2018 - Building intercom systems - Part 3-2: Application guidelines - Advanced security building intercom systems (ASBIS)
English and French language
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IEC 62820-3-2 ®
Edition 1.0 2018-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Building intercom systems –
Part 3-2: Application guidelines – Advanced security building intercom systems
(ASBIS)
Systèmes d'interphone de bâtiment –
Partie 3-2: Lignes directrices d'application – Systèmes d'interphone de bâtiment
à sécurité avancée (ASBIS)
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IEC 62820-3-2 ®
Edition 1.0 2018-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Building intercom systems –
Part 3-2: Application guidelines – Advanced security building intercom systems

(ASBIS)
Systèmes d'interphone de bâtiment –

Partie 3-2: Lignes directrices d'application – Systèmes d'interphone de bâtiment

à sécurité avancée (ASBIS)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 13.320 ISBN 978-2-8322-5357-1

– 2 – IEC 62820-3-2:2018 © IEC 2018

CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 9
3 Terms, definitions and abbreviated terms . 11
3.1 Terms and definitions . 11
3.2 Abbreviated terms . 18
4 Requirements for the ASBIS and ranges of application . 18
4.1 General . 18
4.2 Selected examples for ASBIS applications . 19
4.2.1 General . 19
4.2.2 ASBIS for access communication . 19
4.2.3 ASBIS in schools and other education institutions. 19
4.2.4 ASBIS in authorities and offices . 19
4.2.5 ASBIS in the legal system . 19
4.2.6 ASBIS at railway stations and airports . 20
4.2.7 ASBIS in shopping centres . 20
4.2.8 ASBIS in Public residential buildings . 20
4.2.9 Other examples . 20
4.3 ASBIS operational flow chart for emergency and danger communication . 20
4.4 System structure . 21
4.5 Tasks of an ASBIS . 22
4.5.1 General . 22
4.5.2 Safety / security tasks. 22
4.5.3 Tasks for improving day-to-day processes (schools, universities, etc. in
the example here) . 22
4.5.4 Day-to-day communication . 22
4.6 Safety / security grades . 22
4.7 Components of an ASBIS . 25
4.7.1 Electronic measures . 25
4.7.2 Mechanical protection measures . 26
4.7.3 Other options . 26
4.8 Requirements for system components and interfaces . 26
4.8.1 Basic requirements . 26
4.8.2 Requirements for the system networks . 30
4.8.3 System control centre (ASBIS-server) . 30
4.8.4 Intercom unit as source (VCU, URU) . 31
4.8.5 Intercom unit as receiver (SMU, URU) . 31
4.8.6 Intercom unit as source and receiver (URU, SMU) . 31
4.8.7 Emergency and danger warning equipment (ASBIS warning equipment) . 31
4.8.8 Operational indicators and alarms . 33
4.8.9 Power supply . 34
4.8.10 Electrical cables . 35
4.8.11 Interface to to other safety/security systems . 35
4.9 Other requirements . 36
4.9.1 Implementation of services . 36

4.9.2 Arrangement and distribution of call terminals . 36
4.9.3 Distinguishing between a call and an emergency call . 36
4.9.4 Alarm groups . 36
4.9.5 Internal alarm and instructions on how to proceed . 36
4.10 General device and system requirements . 37
4.10.1 General requirements . 37
4.10.2 Protection against environmental influences . 37
4.10.3 Onsite Influences . 37
4.10.4 Functional safe guard . 37
4.10.5 Operating safety/security . 38
4.10.6 Indicators . 39
4.10.7 Messages . 39
4.10.8 Structure . 39
4.10.9 Processing messages . 40
5 Commissioning / delivery . 40
5.1 General . 40
5.2 General information . 40
5.2.1 Documentation . 40
5.2.2 Commissioning . 41
5.3 Functional interaction of the system components . 41
5.4 Options . 41
6 Operation and maintenance . 41
6.1 General . 41
6.2 Operational test . 42
6.3 Commissioning/repairs . 42
6.4 Replacing the battery and rechargeable battery . 42
6.5 Software updates . 42
7 Tasks and responsibilities. 42
7.1 General information . 42
7.2 Organization in charge (responsible organization) . 44
7.3 Top tier of management . 44
7.4 Technical Risk Management . 44
7.4.1 General . 44
7.4.2 Specifications in the TRM file . 45
7.5 ASBIS-user . 46
7.6 Trained person . 46
7.7 Planner (technical planners, architect, consultant, general planners) . 46
7.8 Installer. 47
7.9 Maintenance staff . 47
7.10 Manufacturer of the system components and the IT network . 48
8 Change management . 48
8.1 General information . 48
8.2 Change process . 48
Annex A (informative) Information on voice announcements . 50
A.1 General information . 50
A.2 Examples of announcement texts . 50
Annex B (informative) Advanced security building intercom systems (ASBIS) . 51

– 4 – IEC 62820-3-2:2018 © IEC 2018
Annex C (informative) Relationship between TRM and ORM as part of an overall risk
management related to an ASBIS application . 52
C.1 General information . 52
C.2 Graphical description . 52
Annex D (informative) Table: Help-tables for risk assessment . 53
D.1 Risk identification related to ASBIS applications . 53
D.2 Example table for assessing the likelihood of an emergency / dangerous
situation . 54
D.3 Protection target definitions as part of the planning for an ASBIS . 55
D.4 Classification of the protections demanded . 55
Annex E (informative) Assisting organizational issues to reduce emergency, danger
and hazard event duration . 56
E.1 Labelling doors and buildings . 56
E.2 Training . 56
Bibliography . 57

Figure 1 – Interdependence between human/organizational and technical level at an
ASBIS used for emergency and danger reaction purposes . 20
Figure 2 – System structure of an ASBIS . 21
Figure 3 – Classification of the grade . 24
Figure 4 – Example of an emergency and danger warning equipment as a single
module . 32
Figure 5 – General information of interrelationships and responsibilities . 43
Figure C.1 – Overview of interrelationship between TRM and ORM as parts of the
overall risk management . 52

Table 1 – Requirements for the ASBIS and it intercom units depending on the grade . 27
Table 2 – Requirements for the ASBIS power supply . 35
Table D.1 – Risk identification related to typical dangers . 53
Table D.2 – Table to identify environmental conditions for assessing the likelihood of
an emergency / dangerous situation . 54
Table D.3 – List of typical protection targets to identify the risk relecance . 55

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
BUILDING INTERCOM SYSTEMS –
Part 3-2: Application guidelines –
Advanced security building intercom systems (ASBIS)

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
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2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62820-3-2 has been prepared by IEC technical committee 79:
Alarm and electronic security systems.
The text of this International Standard is based on the following documents:
FDIS Report on voting
79/601/FDIS 79/605/RVD
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 62820 series, published under the general title Building intercom
systems, can be found on the IEC website.

– 6 – IEC 62820-3-2:2018 © IEC 2018
This International Standard is to be used in conjunction with IEC 62820-3-1.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
INTRODUCTION
This document has become necessary because
– Both the application fields and importance of Advanced Security Building Intercom
Systems (ASBIS) have increased;
– different events, emergencies, dangers and hazards needs various responses and
reactions, which have to be verified by voice communication in advance;
– a detailed guide is needed for companies and operators with no previous knowledge of
ASBIS.
In particular, this document is targeted at police, insurance companies, planners, architects,
manufacturers and specialist security system companies, construction clients, owners,
operators, ASBIS-users and residents of all kind of buildings.
This document covers applications for higher risks such as accidents, emergencies, dangers,
mass attack, terror, school shootings, terrorist attacks, bombs threats, earthquakes, floods,
etc.
An ASBIS is used to receive advanced access communication events (visitor-calls, user-
receiver-calls, security-management-calls) as well other events (emergency, danger and
hazard alarms), forward them to a technical receiver and present them appropriately at a
support agency (e.g. Security Management Unit). On acknowledging receipt, the support
agency assumes responsibility for verifying and initiating measures defined in accordance
with the Technical Risk Management file. The acknowledgement is displayed at the point
where action is initiated.
A daily use of other ASBIS applications (e.g. Annex B) is suggested for ASBIS-users training
as well as system availability in grade 1 of IEC 62820-3-2. The frequency of daily use is a
kind of system check to indicate the system availability.

– 8 – IEC 62820-3-2:2018 © IEC 2018
BUILDING INTERCOM SYSTEMS –
Part 3-2: Application guidelines –
Advanced security building intercom systems (ASBIS)

1 Scope
This part of IEC 62820 describes the basic application requirements for Advanced Security
Building Intercom Systems (ASBIS) in public and private buildings with advanced safety and
security needs. ASBIS are also used to meet the requirements of the Local Regulations of
Workplace Safety and/or other relevant local regulations, in particular, protecting the life and
limb of employees and all persons in the building, taking into account the inclusion of people
with disabilities (e.g to achieve barrier-free access or calls for help) where required by local
applicable law.
This document applies for planning, installation, commissioning, handover, operation and
maintenance of ASBIS, for the transmission of emergency, danger and hazard audio
messages and/or other operational indications to an assisting authority for remote
assessment and for implementing suitable intervention-, protection- and rescue measures.
Additional information can also be transmitted and the system can be used in day-to-day work
for all communication needs. ASBIS also feature in high availability for end unit monitoring
and system monitoring.
Advanced Security Building Intercom Systems (ASBIS) are used for rapid emergency, danger
and hazard calls, verification by voice communication, warning of a danger, rapid notification
of the responsible emergency / intervention services and for sending voice instructions and/or
other operational indications on how to proceed. Requirements for a suitable concept are a
prior risk assessment and a definition of the protection target. The Technical-Risk
Management (TRM) and Organizational Risk-Management (ORM) have to work out a
common workflow strategy in conjunction with the corresponding system requirements, to
achieve the residual risks. This document provides requirements for the technical risk-
management as well as comments and recommendations for the organizational risk-
management.
The present application document for an ASBIS describes among others, the technological
processes and responsibilities involved in supporting all processes, from detecting an event
(visitor-call, emergency, danger, hazard) until that event is finally dealt with. It includes TRM,
the defining protection goals and organizational procedures, and the necessary requirements
for a TRM file. This document defines three different safety/security grades, with the product
requirements for each. Selecting products which can be deployed as technical resources as
part of an ASBIS is the responsibility of the TRM to be employed.
This document, taken together with an ASBIS, also defines the associated tasks,
responsibilities, and activities. These are elements of a holistic TRM process to meet the
protection goals for personnel safety/security, efficiency and effectiveness, data- and system
security. This document does not specify any risk levels. In particular, it does not define any
acceptable residual risks. The TRM and ORM are of equal importance in the overall risk
management (see Annex C).
This document defines the technical requirement profiles for ASBIS for three safety/security
grades. It is the TRM responsibility to determine the grade involved, based on their risk
assessment, selecting whichever grade best matches the risk identified, allowing for an
acceptable residual risk. The annexes to this document will assist in assessing risks.

This document also describes the process for creating, maintaining and updating a TRM file.
The risks are listed, assessed and residual risks are defined in this document. The analysed
results define the extent and the structure of the ASBIS. An ASBIS is a part of a whole
solution for managing certain events, such as emergencies or crises.
The structure and operation of an ASBIS demands TRM over the entire life cycle of the ASBIS.
The monitoring of an ASBIS over its life cycle is a part of the TRM file.
This document is intended to aid implementation of legal and miscellaneous requirements.
Depending on the requirements of the Local Disabilities Act, or the relevant regulation for
people with disabilities, an ASBIS can be used for the implementation of such local
regulations, which means, communication in two different formats such as light and sound
(two-meaning principle).
This document applies in its entire scope for other remote signalling and information
technology systems if they include the functions of Advanced Security Building Intercom
Systems (ASBIS).
This document does not replace any relevant standards for safety/security systems or other
relevant systems. Such systems can however be integrated within an ASBIS taking these
standards into account.
If the regulations in standards for such systems contradict this document, the TRM weighs up
the regulations with each other, assesses them, and documents them in the decision as a
deviation from the standard in the TRM file.
The recommendations and requirements of IEC 62820-3-1 are mandatory for this document.
Exceptions are to be decided by the TRM and to be documented in the TRM file.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their
content constitutes requirements of this document. For dated references, only the edition
cited applies. For undated references, the latest edition of the referenced document (including
any amendments) applies.
NOTE The following standards are named as known. If standards in the following list are not named IEC or ISO,
the relevant relevant IEC/ISO standards are unknown; use available local standards instead.
IEC 60268-16:2011, Sound system equipment – Part 16: Objective rating of speech
intelligibility by speech transmission index
IEC 60529, Degrees of protection provided by enclosures (IP Code)
IEC 60839-5-1:2014, Alarm and electronic security systems – Part 5-1: Alarm transmission
systems – General requirements
IEC 60839-5-2:2016, Alarm and electronic security systems – Part 5-2: Alarm transmission
systems – Requirements for supervised premises transceiver (SPT)
IEC 60839-5-3:2016, Alarm and electronic security systems – Part 5-3: Alarm transmission
systems – Requirements for receiving centre transceiver (RCT)
IEC 60839-7-12:2001, Alarm systems – Part 7-12: Message formats and protocols for serial
data interfaces in alarm transmission systems – PTT interfaces for dedicated communications
channels using ITU-T Recommendation V.23 signalling

– 10 – IEC 62820-3-2:2018 © IEC 2018
IEC 61000-6-1, Electromagnetic compatibility (EMC) – Part 6-1: Generic standards –
Immunity for residential, commercial and light-industrial environments
IEC 61000-6-3, Electromagnetic compatibility (EMC) – Part 6-3: Generic standards –
Emission standard for residential, commercial and light-industrial environments
IEC 62262:2002, Degrees of protection provided by enclosures for electrical equipment
against external mechanical impacts (IK code)
IEC 62599-1:2010, Alarm systems – Part 1: Environmental test methods
IEC 62599-2, Alarm systems – Part 2: Electromagnetic compatibility – Immunity requirements
for components of fire and security alarm systems
IEC 62642-1:2010, Alarm systems – Intrusion and hold-up systems – Part 1: System
requirements
IEC 62820-1-1:2016, Building intercom systems – Part 1-1: System requirements – General
IEC 62820-1-2:2017, Building intercom systems – Part 1-2: System requirements – Building
intercom systems using the internet protocol (IP)
IEC 62820-2, Building intercom systems – Part 2: Requirements for advanced security
building intercom systems (ASBIS)
IEC 62820-3-1, Building intercom systems – Part 3-1: Application guidelines – General
IEC 62851-2, Alarm and electronic security systems – Social alarm systems – Part 2: Trigger
devices
IEC 62851-3, Alarm and electronic security systems – Social alarm systems – Part 3: Local
unit and controller
ISO/IEC 17065, Conformity assessment – Requirements for bodies certifying products,
processes and services
ISO 31000, Risk management – Principles and guidelines
ISO/IEC 31010, Risk management – Risk assessment techniques
ISO 7240-11:2011, Fire detection and alarm systems – Part 11: Manual call points
ITU-T P.800, TELEPHONE TRANSMISSION QUALITY: Methods for objective and subjective
assessment of quality
EN 50134-2:2016, Alarm systems. Social alarm systems. Part 2: Trigger devices (or
equivalent IEC standard)
EN 50134-3:2012, Alarm systems – Social alarm systems – Part 3: Local unit and controller
(or equivalent IEC standard)
DIN VDE 0833-1 (VDE 0833-1):2009-09, Alarm systems for fire, intrusion and hold-up – Part 1:
General provisions (or equivalent IEC standard)

3 Terms, definitions and abbreviated terms
NOTE In the following, instead of repeating “emergency, danger and hazard”, only the word “danger” is used to
represent all three terms.
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp.
3.1.1
acceptance test
documented joint inspection of the ASBIS by ASBIS qualified person/operator/ manager with
highest level of management of the ASBIS TRM, in the form of a visual and functional check
and a check on the completeness of the documents, as a prerequisite for subsequent
handover to the operator and commissioning
3.1.2
alarm equipment
item of equipment which is used to warn persons or call up help to avert the danger
Note 1 to entry: The alarm equipment may be a part or an item of additional equipment in an ASBIS.
3.1.3
alarm signal
local alarm for danger avoidance
EXAMPLE Acoustic and/or optical and/or haptic signals and/or vocal announcements and/or text operational
indicators.
3.1.4
alarm transmission system
alarm transmission device or network used to send information concerning the state of one or
more alarm systems and ASBIS's in a monitored building to one or more operating- and
displaying device(s) from one or more alarm receiving centres
Note 1 to entry: An alarm transmission system may comprise more than one alarm transmission path.
3.1.5
alarm precheck
checking an alert to see whether it was the result of a dangerous situation (e.g. by means of a
pre-check on-site, remote testing through voice communication and/or transmission of
situation images)
3.1.6
alternative power source
energy source which is in the position to supply the ASBIS in advance for a specific amount of
time when the main power source is not available
3.1.7
ASBIS alarm
warning of an existing danger to persons, property, or the environment, triggered by an alarm
state, as well as the demand to call up help to avert the danger

– 12 – IEC 62820-3-2:2018 © IEC 2018
3.1.8
ASBIS alarm condition
status when a potentially or acutely dangerous situation exists which requires the attention or
response from an intervention service
3.1.9
ASBIS-user
person with the entitlement to use the ASBIS
3.1.10
ASBIS qualified person
ASBIS specialist
person who can assess the allocated work or identify potential dangers due to their technical
training, knowledge and experience and familiarity with relevant equipment, standards,
requirements and guidelines.
Note 1 to entry: Operation of the ASBIS requires persons to be qualified in electrical engineering in the area of
message-, information-, microprocessor-, measurement- and control- or general electrical engineering; evidence
shall be provided of the other areas and knowledge of the danger alarm systems. Knowledge on the assessment of
building prerequisites, fire protection in buildings or mechanical safety/security systems, the affect of room usage,
and the limits to the use of notification capture.
Note 2 to entry: A position in a relevant work area lasting several years can be applied to the assessment of the
specialist training
3.1.11
assisting authority
person commissioned by the operator of the ASBIS or a centre manned at all times (e.g.
emergency and service control centre as the assisting authority), which receives the alarms,
alerts and information from the building, checking this information before passing it on and
instructs others to take appropriate action, e.g. to monitor or conduct a search of the building
3.1.12
back-up duration
length of time for which the alternative power source can maintain full functionality of the
ASBIS
3.1.13
commissioning
final test, signing off and activation of ASBIS by the owner, the organization in charge or the
TRM
3.1.14
communication
switching or sending of signals or information between system components and persons
Note 1 to entry: For an ASBIS system this will include but not be limited to:
a) the transfer of useful signals from the source to the receiver and between all technical components / functions;
b) the transfer of check and acknowledgement signals from the source to the receiver via all necessary system
components;
c) the transmission of voice, text and/or image(s) between source and receiver;
d) a voice communication (voice dialogue) from the trigger to the assisting authority. via all necessary system
components;
e) a voice communication (voice dialogue) from the assisting authority to the trigger and the intervention
service via all necessary system components.
3.1.15
data and system security
operating state of an ASBIS, in which important information (data and systems) have
adequate protection against impairments to confidentiality, integrity, and availability

Note 1 to entry: Data- and system security shall be ensured by guidelines, manuals, infrastructure and services
which have been developed to protect important information and systems, that are used to record, transmit, save
and apply information in order to best meet the goals of the organization.
3.1.16
emergency call
call for help or information in case of an emergency (e.g. first aid)
3.1.17
emergency and service control centre
continuously manned location commissioned by the operator which receives remote alarms,
alerts, and information from a monitored building, checking them before passing them on, and
taking and instructing others to take necessary action, such as monitoring the building and/or
instructing an intervention, and documenting it
3.1.18
evaluation
checking of equipment or a procedure by qualified personnel to assess its suitability for the
desired purpose
3.1.19
false alarm
unwanted alarm
alarm which is not indicative of danger
3.1.20
fault
state of a unit, e.g. an ASBIS or an individual system component, characterised by its inability
to meet a required function, for whatever reason
3.1.21
fault message
message indicating that there is a deviation from the specified functionality of an ASBIS or an
ASBIS system component
3.1.22
emergency conference
help call conference
calling appropriate persons which are required to mitigate or end conflicts between persons
3.1.23
integrator
ASBIS server
system component used to meet a technical function of an ASBIS which is used as a control
unit including distribution unit (e.g. switch) for the processing, transfer, diversion and
documentation between source and receiver, which can be integrated split, centrally or
distributed or in the source or recipient
3.1.24
internal alarm
alarm signal in the building after ASBIS functions are triggered for warning those present in
the affected area with the aim of putting in process the required actions (e.g. self-help, self-
rescue) and to notify an assisting authority where applicable
3.1.25
intervention
action used to avoid or limit personal injury, damage to property or assets

– 14 – IEC 62820-3-2:2018 © IEC 2018
3.1.26
intervention service
person or persons who instigate measures to avert danger after an alert or an alarm to
prevent or limit personal injury and/or damage to property or assets
3.1.27
inspection
measures used to establish and assess the actual state of an ASBIS including determining
the causes of increased wear and
...

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