SIST-TS CLC/TS 50131-9:2014

Alarm systems – Intrusion and hold up systems - Part 9: Alarm verification - Methods and principles

CLC/TS 50131-9 is available for use where alarm verification methods are considered necessary. It provides recommendations for the addition and use of alarm verification technology in Intrusion and Hold-up Alarm Systems (I&HAS) installed to comply with EN 50131-1. These recommendations should be incorporated into the respective standards in the EN 5013x series. This Technical Specification does not detail methods of alarm verification relying solely on Alarm Receiving Centre (ARC) procedures, but does not preclude their use. This Technical Specification describes alarm verification methods that could be applied and details applicable to system and equipment design. The framework limits the range of options in order to provide for local regulations and circumstances, whilst permitting a standardised approach to equipment design.  This Technical Specification also provides (in Annex A) recommendations for equipment in order to permit the manufacture of standardised equipment to provide the functionality needed by an I&HAS incorporating alarm verification technology. The associated guidelines for use in ARCs to monitor notification from such I&HAS can be found in EN 50518-3.

Alarmanlagen - Einbruch- und Überfallmeldeanlagen - Teil 9: Alarmvorprüfung - Verfahren und Grundsätze

Systèmes d'alarme - Systèmes d'alarme contre l'intrusion et les hold-up - Partie 9: Vérification d'alarme - Méthodes et principes

La présente Spécification Technique Européenne est disponible pour utilisation dans les situations où les méthodes de vérification de l'alarme sont considérées comme étant nécessaires. Elle établit des recommandations pour l'ajout et l'utilisation de technologies de vérification de l'alarme dans les I&HAS installés afin de se conformer à l'EN 50131-1. Il convient d'intégrer lesdites recommandations dans les normes correspondantes de la série EN 5013x. La présente Spécification Technique Européenne ne détaille pas les méthodes de vérification de l'alarme reposant uniquement sur les procédures de centre de réception d'alarme (ARC); elle n'exclut cependant pas leur utilisation. La présente Spécification Technique Européenne décrit les méthodes de vérification de l'alarme qui pourraient être appliquées ainsi que les détails applicables à la conception des systèmes et équipements. Le cadre limite la gamme d'options possibles afin de se conformer aux circonstances et réglementations locales, tout en permettant d'adopter une approche normalisée de la conception d'équipement. La présente Spécification Technique Européenne établit également (dans l'Annexe A) des recommandations relatives à l'équipement afin de permettre la fabrication d'équipements normalisés fournissant les fonctionnalités nécessaires pour un I&HAS doté d'une technologie de vérification de l'alarme. Les directives associées à utiliser pour les ARC, afin de surveiller une notification provenant d'un tel I&HAS, peuvent être consultées dans l'EN 50518 3. NOTE   Une vérification de l'alarme peut également être nommée "confirmation d'alarme".

Alarmni sistemi - Sistemi za vpad v klic in zadržanje klica - 9. del: Preverjanje alarmov - Metode in načela

Standard CLC/TS 50131-9 je na voljo za uporabo, kjer so potrebne metode za preverjanje alarmov. Zagotavlja priporočila za dodajanje in uporabo tehnologije za preverjanje alarmov v sistemih za vpad v klic in zadržanje klica (I&HAS), ki je nameščena v skladu s standardom EN 50131-1. Ta priporočila naj bi bila vključena v zadevne standarde serije EN 5013x. Ta tehnična specifikacija podrobno ne navaja metod za preverjanje alarmov, ki se zanašajo samo na postopke sprejemnega centra za alarme (ARC), toda ne nasprotuje njihovi uporabi. Ta tehnična specifikacija opisuje metode za preverjanje alarmov, ki jih je mogoče uporabiti, in podrobnosti, ki veljajo za načrtovanje sistema in opreme. Ogrodje omejuje razpoložljive možnosti, da se zagotovi upoštevanje lokalnih predpisov in okoliščin, hkrati pa omogoči standardiziran pristop k načrtovanju opreme.  Ta tehnična specifikacija zagotavlja tudi (v Dodatku A) priporočila za opremo, da se omogoči proizvodnjo standardizirane opreme, ki bi zagotovila funkcionalnost, ki jo potrebuje tehnologija za preverjanje alarma s sistemom za vpad v klic in zadržanje klica (I&HAS). Povezane smernice za uporabo pri sprejemnih centrih za alarme (ARC) za nadzor opozoril iz takšnih sistemov za vpad v klic in zadržanje klica je mogoče najti v standardu EN 50518-3.

General Information

• Status: Published
• Publication Date: 21-Oct-2014
• ICS: 13.310 - Protection against crime
• ICS: 13.320 - Alarm and warning systems
• Technical Committee: EAL - Alarm systems
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 08-Jul-2014
• Due Date: 12-Sep-2014
• Completion Date: 22-Oct-2014
• Directive: TP067 - Odredba o določitvi standardov, ki so obvezni na področju zasebnega varovanja
• Directive: TP221 - Pravilnik o pogojih in merilih za izdajatelja pomnilniških kartic za zapisovalno opremo v cestnih prevozih ter načinu oblikovanja in določanja cene za izdajo kartice
• Ref Project: CLC/TS 50131-9:2014 - Alarm systems - Intrusion and hold-up systems - Part 9: Alarm verification - Methods and principles

Standards Content (Sample)

SLOVENSKI STANDARD
SIST-TS CLC/TS 50131-9:2014
01-november-2014
$ODUPQLVLVWHPL6LVWHPL]DYSDGYNOLFLQ]DGUåDQMHNOLFDGHO3UHYHUMDQMH
DODUPRY0HWRGHLQQDþHOD
Alarm systems – Intrusion and hold up systems - Part 9: Alarm verification - Methods and
principles
Alarmanlagen - Einbruch- und Überfallmeldeanlagen - Teil 9: Alarmvorprüfung -
Verfahren und Grundsätze
Ta slovenski standard je istoveten z: CLC/TS 50131-9:2014
ICS:
13.310 Varstvo pred kriminalom Protection against crime
13.320 Alarmni in opozorilni sistemi Alarm and warning systems
SIST-TS CLC/TS 50131-9:2014 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TS CLC/TS 50131-9:2014

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SIST-TS CLC/TS 50131-9:2014

TECHNICAL SPECIFICATION CLC/TS 50131-9

SPÉCIFICATION TECHNIQUE

TECHNISCHE SPEZIFIKATION
June 2014
ICS 13.320
English Version
Alarm systems - Intrusion and hold-up systems - Part 9: Alarm
verification - Methods and principles
Systèmes d'alarme - Systèmes d'alarme contre l'intrusion et Alarmanlagen - Einbruch- und Überfallmeldeanlagen - Teil
les hold-up - Partie 9: Vérification d'alarme - Méthodes et 9: Alarmvorprüfung - Verfahren und Grundsätze
principes
This Technical Specification was approved by CENELEC on 2014-04-11.

CENELEC members are required to announce the existence of this TS in the same way as for an EN and to make the TS available promptly
at national level in an appropriate form. It is permissible to keep conflicting national standards in force.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.



European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2014 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. CLC/TS 50131-9:2014 E

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Contents page
Foreword . 4
Introduction . - 5 -
1 Scope . - 6 -
2 Normative references . - 6 -
3 Terms, definitions and abbreviations . - 6 -
3.1 Terms and definitions . - 6 -
3.2 Abbreviations . - 9 -
4 Overview . - 9 -
5 Parameter variation . - 10 -
6 General recommendations for I&HAS incorporating alarm verification . - 10 -
6.1 General . - 10 -
6.2 Setting and unsetting . - 10 -
6.3 Indications. - 10 -
6.4 Processing and Notification . - 10 -
6.5 Event recording . - 11 -
6.6 Restore . - 12 -
6.7 Documentation . - 12 -
6.8 Hold-up alarms . - 12 -
7 Sequential verification of intruder alarms . - 12 -
7.1 General . - 12 -
7.2 Recommendations for system requirements . - 13 -
7.3 Installation guidelines . - 14 -
7.4 ARC responses . - 15 -
8 Sequential verification of hold-up alarms . - 15 -
8.1 Recommendations for system requirements . - 15 -
8.2 Installation guidelines . - 15 -
8.3 ARC responses . - 15 -
9 Audible alarm verification . - 16 -
9.1 System design factors . - 16 -
9.2 Installation guidelines . - 16 -
9.3 ARC responses . - 17 -
10 Visual alarm verification . - 17 -
10.1 System design factors . - 17 -
10.2 Installation guidelines . - 17 -
10.3 ARC responses . - 17 -
11 ATS faults . - 18 -
11.1 System design factors . - 18 -
11.2 Installation guidelines . - 18 -
11.3 ARC responses . - 18 -
Annex A (informative) Equipment specifications . - 19 -
A.1 General . - 19 -
A.2 Control and indicating equipment . - 19 -
A.3 Multi-output combined detectors . - 20 -
A.4 Multi-action hold-up device . - 20 -
A.5 Audible alarm verification equipment . - 21 -
A.6 Visual alarm verification equipment . - 22 -
Annex B (informative) Equipment test procedures . - 24 -
B.1 CIE . - 24 -
B.2 Multi-output combined detectors . - 26 -
B.3 Audible alarm verification equipment . - 26 -
B.4 Visual alarm verification equipment . - 27 -
Bibliography . - 28 -

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Figures and Tables
Figure 1 – Time line of completed sequentially verified alarm sequence . - 12 -
Figure 2 – Time line of unverified alarm sequence . - 13 -
Table 1 – Types of alarm permitted to contribute to a sequentially verified intruder alarm . - 13 -
Table A.1 – Tamper protection, tamper detection and environmental recommendations for audible
alarm verification equipment . - 22 -
Table A.2 – Tamper protection, tamper detection and environmental recommendations for visual
alarm verification equipment . - 23 -
Table B.1 – CIE tests for alarm verification functions (1 of 3) . - 24 -

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Foreword
This document (CLC/TS 50131-9:2014) has been prepared by CLC/TC 79 "Alarm systems".
EN 50131 (all parts) will consist of the following parts, under the general title Alarm systems –
Intrusion and hold-up systems:
Part 1 System requirements
Part 2-2 Intrusion detectors – Passive infrared detectors
Part 2-3 Requirements for microwave detectors
Part 2-4 Requirements for combined passive infrared and microwave detectors
Part 2-5 Requirements for combined passive infrared and ultrasonic detectors
Part 2-6 Opening contacts (magnetic)
Part 2-7-1 Intrusion detectors – Glass break detectors (acoustics)
Part 2-7-2 Intrusion detectors – Glass break detectors (passive)
Part 2-7-3 Intrusion detectors – Glass break detectors (active)
Part 2-8 Intrusion detectors – Shock detectors
1)
Part 2-9 Intrusion detectors – Active infrared detectors
Part 3 Control and indicating equipment
Part 4 Warning devices
1)
Part 5-1 Requirements for wired interconnection for I&HAS equipments located in
supervised premises
Part 5-3 Requirements for interconnections equipment using radio frequency techniques
Part 5-4 System compatibility testing for I&HAS equipments located in supervised premises
Part 6 Power supplies
Part 7 Application guidelines
Part 8 Security fog device/systems
Part 9 Alarm verification – Methods and principles
Part 10 Application specific requirements for Supervised Premises Transceiver (SPT)
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
———————
1)
At draft stage.

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Introduction
Unwanted alarms have been a significant problem for response authorities throughout Europe. Alarm
verification (also known as “Confirmation”) is one means developed to reduce this problem.
Development of alarm verification technologies has been carried out nationally on an “as needed”
basis, resulting in different methods and practices being used – thus negating the benefits of having
common European Standards for Intrusion and Hold-up Alarm Systems (I&HAS) and associated
components.
This specification provides a basis for use of the technology that could be applied to verification of
intruder and hold-up alarms such that countries that wish to do so could introduce alarm verification
measures in a way that will permit later standardisation across Europe.
It provides a framework with limited options for the design, manufacture and testing of equipment
(especially CIE) whilst enabling a multiplicity of implementations, thus removing the restrictions to
trade imposed by the use of conflicting national recommendations.
The framework includes all methods in current use. Newly developed methods could be added to this
specification, or its principles used to derive guidance for the implementation of such methods.
Alarm verification technology does not supersede the need for best practice in the design and
installation of such systems, but supplements the requirements of EN 50131-1 in order to increase the
probability that an alarm notified to an ARC by an Intrusion and Hold-up Alarm System may be
considered to be genuine.
This European Technical Specification contains recommendations affecting a number of standards
and application guidelines for both systems and products. There are a number of reasons for this:
− to group all relevant recommendations in a single document to simplify reference by those
wishing to introduce an implementation of alarm verification;
− to allow alarm verification to be tested before review and eventual incorporation into European
Standards;
− to recommend the additional product requirements necessary to provide the additional
functionality for an installed I&HAS to meet these recommendations (see Annex A), pending
incorporation of these recommendations into EN 50131 (or other) product standards;
− it should also be noted that some aspects of alarm verification do not have a related standard
(e.g. audible and visual methods and related equipment).
Methods of reducing unwanted alarms specific to entry and exit procedures will be detailed in a future
standard.

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1 Scope
This European Technical Specification is available for use where alarm verification methods are
considered necessary. It provides recommendations for the addition and use of alarm verification
technology in Intrusion and Hold-up Alarm Systems (I&HAS) installed to comply with EN 50131-1.
These recommendations should be incorporated into the respective standards in the EN 5013x series.
This Technical Specification does not detail methods of alarm verification relying solely on Alarm
Receiving Centre (ARC) procedures, but does not preclude their use.
This Technical Specification describes alarm verification methods that could be applied and details
applicable to system and equipment design. The framework limits the range of options in order to
provide for local regulations and circumstances, whilst permitting a standardised approach to
equipment design.
This Technical Specification also provides (in Annex A) recommendations for equipment in order to
permit the manufacture of standardised equipment to provide the functionality needed by an I&HAS
incorporating alarm verification technology.
The associated guidelines for use in ARCs to monitor notification from such I&HAS can be found in
EN 50518-3.
NOTE Alarm verification may also be referred to as “alarm confirmation”.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
EN 50131-1:2006, Alarm systems — Intrusion and hold-up systems — Part 1: System requirements
CLC/TS 50131-7:2010, Alarm systems — Intrusion and hold-up systems — Part 7: Application
guidelines
EN 50136-1, Alarm systems — Alarm transmission systems and equipment — Part 1: General
requirements for alarm transmission systems
EN 50518-3:2013 , Monitoring and alarm receiving centre — Part 3: Procedures and requirements for
operation
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 50131-1:2006 and the
following apply.
3.1.1
abort signal or message
signal or message from an I&HAS identifiable at with the ARC to indicate that an authorised user has
performed an action on the I&HAS to report that the previously notified alarm should be cancelled
3.1.2
alarm verification
process to provide information additional to a notified alarm, which increases the probability that the
alarm should be considered genuine
[SOURCE: EN 50518-3:2013]

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3.1.3
audible alarm verification
verification of an intruder or hold-up alarm by sound received from the supervised premises
3.1.4
audio listening device
device converting sound waves into electrical energy suitable for transmission from the supervised
premises
EXAMPLE Microphone
Note 1 to entry: This device may be integrated into its associated detector.
3.1.5
audio monitoring device
device activated by sounds above a specified threshold and which, after activation, carries out the
functionality of an audio listening device (See Annex A)
3.1.6
automatic reinstatement
process of I&HAS terminating an alarm verification time sequence if no sequentially verified alarm has
occurred, in readiness for the possibility of a new unverified alarm
3.1.7
digital key
portable device containing digitally coded information used by an authorized user to gain access to
restricted functions or parts of a CIE
EXAMPLE Magnetic card, electronic token or similar
[SOURCE: EN 50131-3:2009]
3.1.8
imaging device
device that converts an optical image into an electrical signal
EXAMPLE Camera
Note 1 to entry: This device may be integrated into its associated detector.
[SOURCE: EN 50132-7:2012, 3.1.21]
3.1.9
multi-action hold-up device
device consisting of two (or more) different operating mechanisms whose processed outputs are
independently communicated to the CIE for use in sequentially verified HAS
3.1.10
multi-output combined detector
detector consisting of two (or more) separate sensors whose processed outputs are configured to
communicate independently to the CIE for use in sequentially verified IAS
Note 1 to entry: The multiple sensors may be of the same technology (see A.3).
Note 2 to entry: For the purposes of this document, if a multi-output combined detector includes one or more
single-output combined detectors, such single-output combined detectors should each be considered equivalent
to a single sensor.

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3.1.11
notified alarm
alarm that has been notified to the ARC in accordance with EN 50131-1
3.1.12
sequential alarm verification
verification of an intruder or hold-up alarm by using sequence of alarms originating from different
detectors or hold-up devices to lead to designation of an alarm as verified
Note 1 to entry: Permitted detection combinations are recommended in 7.2.2 (intruder) and.8.1.2 (hold-up).
Note 2 to entry: Time lines illustrating the operation of a sequentially verified intruder alarm are included in
Clause 7.
Note 3 to entry: Multi-output detection devices may be used instead of separate detectors (see 7.3.2).
3.1.13
single-output combined detector
detection device consisting of two (or more) separate intrusion detection sensors whose outputs are
configured to be processed and communicated to the CIE as one signal or message
3.1.14
unverified alarm
intruder or hold-up alarm that has not yet been sequentially, visually or audibly verified
3.1.15
alarm verification time
pre-determined time following an unverified alarm, during which a sequentially verified alarm may be
generated
Note 1 to entry: If no sequentially verified alarm has been generated during this time, automatic
reinstatement takes place.
3.1.16
verified alarm
alarm considered genuine as a result of the use of alarm verification
Note 1 to entry: According to the method in use, the designation as verified may be carried out by the CIE or
by the ARC operator.
3.1.17
video monitoring device
device detecting variations within a video signal, interpreting those above a specified threshold as
evidence of movement
EXAMPLE Processing integrated into an imaging device
Note 1 to entry: See Annex A.
3.1.18
visual alarm verification
verification of an intruder alarm by images received from the supervised premises

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3.2 Abbreviations
For the purposes of this document, the abbreviations given in EN 50131-1:2006 and the following
apply.
− ALD Audio Listening Device
− AMD Audio Monitoring Device
− HUA Hold-Up Alarm
− VMD Video Monitoring Device
The following abbreviations are extracted from EN 50131-1:
− ACE Ancillary Control Equipment
− ARC Alarm Receiving Centre
− ATS Alarm Transmission System
− CIE Control and Indicating Equipment
− CLC CENELEC
− HAS Hold-up Alarm System
− IAS Intruder Alarm System
− I&HAS Intrusion and Hold-up Alarm System
− SPT Supervised Premises Transceiver
− WD Warning Device
4 Overview
It is not necessary that the entire supervised premises include means of alarm verification where this
is not appropriate.
Where appropriate, different methods of alarm verification may be used for different parts of the same
I&HAS.
The alarm verification principles and methods described in this document are as follows:
− General recommendations  See Clause 6
− Sequential verification of intruder alarms See Clause 7
− Sequential verification of hold-up alarms See Clause 8
− Audible alarm verification  See Clause 9
− Visual alarm verification  See Clause 10
− ATS faults  See Clause 11
− Equipment specifications  See Annex A
− Equipment Test Procedures  See Annex B
Any specification based on this document should specify which methods of alarm verification are
permitted and which options and parameter limits are to be implemented

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If other methods of alarm verification are to be used, relevant principles should be drawn from this
specification.
Consideration should be given to the recommendations that sequential alarm verification be
operational when audible or visual alarm verification is in use in IAS and that a telephone call-back
procedure from the ARC be available when audible or visual alarm verification is used for HAS.
5 Parameter variation
This specification includes requirements offering a range of values for certain parameters to suit the
needs of different sites or countries, which should be applied within the limits stated within each
requirement.
6 General recommendations for I&HAS incorporating alarm verification
6.1 General
The following recommendations are additional to EN 50131-1 and related product standards and
should be considered for all I&HAS using alarm verification, at all security grades (except where
stated).
6.2 Setting and unsetting
There should be provision to warn a user of failure to complete the setting procedure (Refer to
EN 50131-3:2009, 8.3.3.3).
Consideration should be given to the methods of entry and exit employed, to further minimize
unwanted alarms.
6.3 Indications
The indication requirements of EN 50131-1:2006, 8.5, should be met by an I&HAS using alarm
verification.
NOTE 1 If setting is carried out external to the supervised premises using a digital key, the provisions of
EN 50131-3:2009, 8.3.2.2.2, are applicable.
The following indications, additional to those shown in EN 50131-1:2006, Table 8 and
EN 50131-3:2009, Table 6, should be provided by I&HAS using sequential alarm verification:
− unverified alarm;
− sequentially verified alarm;
− automatic reinstatement;
− detector inhibited at automatic reinstatement (including, at grades 3 and 4, identification of
detector).
If the unverified alarm or sequentially verified alarm is generated by a tamper condition, this should be
separately identified, as required by EN 50131-1, for I&HAS grades 3 and 4.
NOTE 2 The requirement of EN 50131-1 (Table 8) for an “intruder alarm” indication is met by the “unverified
alarm.”
6.4 Processing and Notification
The processing requirements and timing performance specified in EN 50131-1:2006, 8.4 and 8.9,
should apply to each alarm condition individually.
The use of a dual path alarm transmission system should be considered in order to maximize the
ability to transmit a second signal to the ARC. (See also Clause 11.)

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The generation of a verified intruder alarm should not be permitted whilst the IAS is unset.
All IAS including alarm verification techniques should either
− notify all set / unset events to the ARC,
− or
− notify “abort” to the ARC to indicate to that an authorised user has performed an action to report
that the previously notified alarm should be cancelled.
The generation of a verified hold-up alarm should not be permitted whilst the HAS (or HAS portion of
an I&HAS) is unset.
Consideration should be given to the use of an alarm reporting format capable of providing detailed
information about alarms to the ARC (EXAMPLE: identification of detector(s)).
The following additional signals or messages, additional to EN 50131-1:2006, Table 8, should be
processed and notified to an ARC by I&HAS using sequential alarm verification:
− unverified alarm;
− sequentially verified alarm;
− automatic reinstatement;
− automatic reinstatement with detector inhibited.
If the unverified or sequentially verified alarm is generated by a tamper condition, the tamper condition
should be separately notified, as required by EN 50131-1:2006, Table 8, for I&HAS grades 3 and 4.
NOTE 1 The requirement of EN 50131-1:2006, Table 8, for an “intruder alarm” signal or message is met by the
“unverified alarm.”
NOTE 2 “Automatic reinstatement” may be notified by restore of the unverified alarm notification signal or
message.
6.5 Event recording
The event recording requirements of EN 50131-1:2006, 8.10 should be met by an I&HAS using alarm
verification.
The following events, additional to those shown in EN 50131-1:2006, Table 22 and EN 50131-3:2009
Table 11, should be recorded by I&HAS using sequential alarm verification:
− unverified alarm;
− sequentially verified alarm;
− automatic reinstatement;
− detector inhibited at automatic reinstatement (including, at grades 3 and 4, identification of
detector).
NOTE 1 The recording of events is optional at grade 1
NOTE 2 The requirement of EN 50131-1:2006, Table 22, for an “intruder alarm” event is met by the “unverified
alarm.”
If an unverified alarm or sequentially verified alarm is generated by a tamper condition, this should be
identified accordingly, as required by EN 50131-1:2006, Table 22.
NOTE 3 For a sequentially verified I&HAS, the final paragraph of EN 50131-1:2006, 8.10 may be read as
applicable to each alarm verification period; the number of events recorded could therefore exceed ten during a
single set period.

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6.6 Restore
Reference EN 50131-1:2006, Table 6, the permitted access level to restore an unverified alarm should
be as specified for “hold-up,” “intruder” or “tamper” as applicable.
Restoration of an I&HAS following a sequentially verified alarm should be by access level 2 or 3 user,
or may be restricted to access level 3.
NOTE If one or both of the alarms resulting in a verified alarm is a tamper, the minimum access level specified
in EN 50131-1:2006, Table 6 applies.
6.7 Documentation
Documentation for I&HAS including alarm verification should comply with CLC/TS 50131-7:2010,
Annex G with the following additional information
− details of alarm verification method(s) used including, where applic
...