EN 50131-1:2006/IS2:2010
Alarm systems - Intrusion and hold-up systems - Part 1: System requirements
Alarm systems - Intrusion and hold-up systems - Part 1: System requirements
This European Standard specifies the requirements for Intrusion and Hold-up Alarm Systems installed in buildings using specific or non-specific wired interconnections or wire-free interconnections. These requirements also apply to the components of an I&HAS installed in a building which are normally mounted on the external structure of a building e.g. ancillary control equipment or warning devices. The standard does not include requirements for exterior I&HAS. This standard specifies performance requirements for installed I&HAS but does not include requirements for design, planning, installation, operation or maintenance. These requirements also apply to I&HAS sharing means of detection, triggering, interconnection, control, communication and power supplies with other applications. The functioning of an I&HAS shall not be adversely influenced by other applications. Requirements are specified for I&HAS components where the relevant environment is classified. This classification describes the environment in which an I&HAS component may be expected to function as designed. When the requirements of the four environmental classes are inadequate, due to the extreme conditions experienced in certain geographic locations, special national conditions are given in Annex A. General environmental requirements for I&HAS components are described in Clause 7. The requirements of this European Standard also apply to IAS and HAS when these systems are installed independently. When an I&HAS does not include functions relating to the detection of intruders, the requirements relating to intrusion detection do not apply. When an I&HAS does not include functions relating to hold-up, the requirements relating to hold-up do not apply. NOTE Unless otherwise stated the abbreviation I&HAS is intended to also mean IAS and HAS.
Alarmanlagen - Einbruch- und Überfallmeldeanlagen - Teil 1: Systemanforderungen
Diese Europäische Norm legt die Anforderungen an Einbruch- und Überfallmeldeanlagen fest, die in Gebäuden installiert sind und die exklusive oder nicht-exklusive leitungsgebundene oder drahtlose Verbindungen verwenden. Diese Anforderungen gelten auch für die Anlageteile von in Gebäude installierten EMA/ÜMA, die üblicherweise im Außenbereich am Gebäude montiert sind z. B. zusätzliche Bedieneinrichtung oder Signalgeber. Die Norm enthält keine Anforderungen an EMA/ÜMA für den Außenbereich. Diese Norm legt Leistungsanforderungen für installierte EMA/ÜMA fest, enthält aber keine Anforderungen an Planung, Projektierung, Installation, Betrieb oder Instandhaltung. Diese Anforderungen gelten auch für EMA/ÜMA, die Mittel der Erkennung, Auslösung, Verbindung, Steue-rung, Kommunikation und Energieversorgungen mit anderen Anwendungen teilen. Der Funktion von EMA/ÜMA darf von anderen Anwendungen nicht negativ beeinflusst werden. Anforderungen an EMA/ÜMA Anlageteile sind entsprechend den Umweltklassen festgelegt. Diese Klassifizierung beschreibt die Umweltbedingungen, bei denen ein bestimmungsgemäßer Funktion der EMA/ÜMA Anlageteile erwartet werden kann. Wenn die Anforderungen der vier Umweltklassen aufgrund extremer Bedingungen, die in bestimmten geographischen Gebieten erfahrungsgemäß auftreten, nicht ausreichend sind, gelten die in Anhang A aufgeführten besonderen Nationalen Bedingungen. Allgemeine Anforderungen an Umweltbedingungen für EMA/ÜMA Anlageteile werden in Abschnitt 7 beschrieben. Die Anforderungen dieser Europäischen Norm gelten auch für EMA und ÜMA, die unabhängig voneinander installiert sind. Wenn EMA/ÜMA keine Funktionen für das Erkennen von Eindringlingen enthalten, gelten die Anforderungen an die Einbrucherkennung nicht. Wenn EMA/ÜMA keine Funktionen für Überfallmeldungen enthalten, gelten die Anforderungen an Überfall nicht. ANMERKUNG Falls nicht anders angegeben, gilt die Abkürzung EMA/ÜMA auch für EMA sowie für ÜMA.
Systèmes d'alarme - Systèmes d'alarme contre l’intrusion et les hold-up - Partie 1: Exigences système
La présente Norme Européenne spécifie les exigences des systèmes d’alarme contre l’intrusion et les hold-up installés dans les immeubles utilisant des liaisons filaires spécifiques ou non spécifiques, ou des liaisons non filaires. Ces exigences s'appliquent également aux composants d’un I&HAS installé dans un immeuble, normalement fixé sur une structure externe de l'immeuble, ex: des matériels de commande auxiliaire ou des dispositifs d'avertissement. La norme ne contient pas d'exigences pour les I&HAS situés à l'extérieur. Cette norme spécifie les caractéristiques des I&HAS installés, mais elle ne comprend pas d'exigences pour la conception, la planification, l'installation, le fonctionnement ou la maintenance. Ces exigences s'appliquent aux I&HAS partageant leurs moyens de détection, de déclenchement, de liaison, de commande, de communication et d'alimentation avec d'autres applications. Le fonctionnement d’un I&HAS ne doit pas être influencé défavorablement par d'autres applications. Les exigences sont spécifiées pour les composants de I&HAS si l'environnement correspondant est classifié. Cette classification décrit l'environnement dans lequel est supposé fonctionner un I&HAS tel qu'il est conçu. Si les exigences relatives aux quatre classes d'environnement sont inadaptées en raison de conditions extrêmes vérifiées pour certains emplacements géographiques, des conditions nationales particulières sont données en Annexe A. Les exigences générales relatives à l'environnement concernant les composants des I&HAS sont décrites dans la’Article 7. Les exigences de la présente Norme Européenne s’appliquent également aux IAS et HAS lorsque ces systèmes sont installés de façon indépendante. Lorsqu’un I&HAS ne comprend pas de fonctions relatives à la détection d’intrus, les exigences relatives à la détection d’intrusion ne s’appliquent pas. Lorsqu’un I&HAS ne comprend pas de fonctions relatives au hold-up, les exigences relatives au hold-up ne s’appliquent pas. NOTE Sauf indication contraire, l’abréviation I&HAS est destinée aussi à désigner les IAS et HAS.
Alarmni sistemi - Sistemi za javljanje vloma in ropa - 1. del: Sistemske zahteve
Dostavek IS2:2011 je dodatek k standardu SIST EN 50131-1:2007.
Ta dokument podaja samo interpretacijo za vsebino EN 50131-1:2006. Drugi standardi,
tehnična poročila ali tehnične specifikacije v seriji EN 50131 ali seriji EN 50136 so lahko
navedeni kot sklic, vendar je interpretacija omejena na področje in uporabo EN 50131-1:2006.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 50131-1:2007/IS2:2011
01-maj-2011
Alarmni sistemi - Sistemi za javljanje vloma in ropa - 1. del: Sistemske zahteve
Alarm systems - Intrusion and hold-up systems - Part 1: System requirements
Ta slovenski standard je istoveten z: EN 50131-1:2006/IS2:2010
ICS:
13.310 Varstvo pred kriminalom Protection against crime
13.320 Alarmni in opozorilni sistemi Alarm and warning systems
SIST EN 50131-1:2007/IS2:2011 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 50131-1:2007/IS2:2011
EN 50131-1/IS2
Interpretation 2
EN 50131-1:2006
English version
___________
Foreword
This interpretation of the European Standard EN 50131-1:2006 was prepared by the Technical
Committee CENELEC TC 79, Alarm systems. The text of the draft was submitted to the Unique
Acceptance Procedure and was approved by CENELEC on 2010-07-09.
This document supersedes EN 50131-1:2006/IS1:2009.
Compared to EN 50131-1:2006/IS1:2009 the only change is the replacement of the 2nd paragraph of
8.5.4 by a new one for clarification’s sake.
EN 50131-1:2006, Alarm systems – Intrusion and hold-up systems – Part 1: System requirements,
includes many requirements that may not match traditional intrusion systems in some countries.
Additionally, standards are written in a style which can make them difficult to understand unless some
explanation is given. This interpretation is intended to provide extra information to readers of the
standard to assist in its understanding. It should be read in conjunction with the standard.
This interpretation varies in the depth of detail provided. More detail is given for areas that prompted
significant questions during the development of EN 50131-1:2006.
This interpretation may also assist translators by clarifying the meaning of the standard.
This interpretation is informative and the standard shall be used to resolve any disputes.
ATTENTION – Numbering of clauses and tables:
In this document (sub)clause and table numbers written in italic (e.g. Table 7, Subclause 8.3.1) refer to
subclauses and tables in EN 50131-1:2006. Numbers written normally (e.g. Table 2, Subclause 6.1.1)
usually refer to this document but, when specifically stated, may refer to other documents.
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Contents
1 About this document . 3
1.1 Scope . 3
1.2 References . 3
1.3 Definitions and abbreviations in this document . 3
2 Brief guide on How to read the standard . 4
2.1 Conventions used in standards (CENELEC Internal Regulations) . 4
3 Definitions . 4
6 Security grading . 6
7 Environmental classification . 6
8 Functional requirements . 7
9 Power supply.19
Figures
Figure 1 – General processing . 10
Figure 2 – Relationship of ATS and I&HAS. 16
Tables
Table 1 – Events – Cross references . 11
Table 2 – Excerpt of Table 7 . 12
Table 3 – Contents of Table 8 and Table 9 . 14
Table 4 – Clarification for Table 9 . 15
Table 5 – Interpretation of some items of Table 22 . 18
In Clauses 3 to 9 of this document the section numbering
matches the clauses of EN 50131-1:2006.
Only interpreted clauses are given and therefore the numbers
are not continuous.
Attention: In this document references in italics refer to parts of EN 50131-1:2006
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1 About this document
1.1 Scope
This document provides interpretation for the contents of EN 50131-1:2006 only. Other standards,
Technical Reports or Technical Specifications in the EN 50131 series or EN 50136 series may be
referenced but the interpretation is restricted to the scope and use of EN 50131-1:2006.
1.2 References
The standard that this document interprets is EN 50131-1: 2006, Alarm systems – Intrusion and
hold-up systems – Part 1: System requirements.
Other standards referenced are those listed in the normative references of EN 50131-1:2006.
1.3 Definitions and abbreviations in this document
1.3.1 Definitions
The following definitions apply to terms used in this document that do not appear in EN 50131-1:2006.
For other terms refer to EN 50131-1:2006.
1.3.1.1
alarm transmission equipment
equipment which is used primarily for the transmission of alarm messages from the supervised
premises transceiver interface to the alarm receiving centre transceiver interface
NOTE This is based on definition 4.5 in EN 50136-1-1:1998. When used in this document it always refers to equipment that is
part of the alarm transmission system located at the supervised premises, i.e. the supervised premises transceiver, whether
housed separately or within another component of the I&HAS, e.g. the CIE.
1.3.1.2
duress situation
situation in which the I&HAS user is under direct threat and the triggering of an HAS should therefore
be hidden from the attacker
1.3.1.3
identifier
physical or logical entity used by a user during authorisation (e.g. numeric code, proximity token,
biometric characteristic, etc.)
NOTE The identifier does not necessarily uniquely identify a person.
1.3.2 Abbreviations
This document uses the abbreviations of EN 50131-1:2006 and the following.
ATE Alarm Transmission Equipment
NOTE The abbreviation ATS (Alarm Transmission System) given in EN 50131-1:2006 is also used for the rating of ATS. In this
instance it is followed by a number (e.g. ATS 4). Refer to 8.6.
Attention: In this document references in italics refer to parts of EN 50131-1:2006
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2 Brief guide on How to read the standard
2.1 Conventions used in standards (CENELEC Internal Regulations)
When reading standards, it is important to understand the relationship of the sections of the standard
and to apply certain conventions. Ignoring these conventions may result in the reader
misunderstanding the standard. For full details refer to “CEN/CENELEC Internal Regulations – Part 3:
Rules for the structure and drafting of CEN/CENELEC Publications”.
In particular:
• The “Scope” describes the limitations of the standard. In the case of EN 50131-1:2006 for
example it states that it does not include “requirements for exterior I&HAS”.
• A term defined in the list of definitions has only the meaning that is written in the list of definitions.
• Normative items are requirements. Informative items are advisory. Any item written as a note is
informative.
• Things described as mandatory or written using the word “shall” are required by the standard.
Things described as optional or written using the word “may” are not required by the standard but
can be included by the I&HAS. If they are included in the I&HAS then they shall comply with any
associated requirements.
The terms Permitted (P), Not Permitted (NP) and Not Applicable (NA) appear in the standard.
“Permitted” means that the I&HAS may perform the action or include the function. “Not Permitted”
means that for the given case the I&HAS shall not perform the action or include the function. “Not
Applicable” means that the case should not occur. For example the I&HAS cannot indicate a set status
when it is unset (Table 9).
In the remainder of this document the section numbering matches
the clauses of EN 50131-1:2006.
Only interpreted clauses are given and therefore the numbers
are not continuous.
3 Definitions
3.1.9 alarm notification
The use of the term “notification” within the standard also includes the use of warning
devices and alarm transmission equipment with the objective of initiating an intervention
by a response provider.
3.1.11 alarm transmission system (ATS)
This is one or more sub-systems used to transfer information about the I&HAS to one or
more ARC. The standard is primarily concerned with the transfer of information about
intrusion and hold-up alarms, fault and tamper conditions. The alarm transmission
equipment (ATE) located at the ARC does not form part of the I&HAS. The ATS does
not include transmission between components of the I&HAS with the exception of any
interface between the CIE and the ATE.
Attention: In this document references in italics refer to parts of EN 50131-1:2006
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3.1.12 alert indication
This only indicates that further indications are available. It gives no information specific
to the event that causes it. It also does not imply that any condition causing the “further
indication” is still present (see 8.5.3).
NOTE 2 in Subclause 8.5.1 clarifies that the alert indication may be suppressed in certain cases such as
following triggering of a hold-up device.
The alert indication may have several forms. For example it could be audible and visual
until acknowledged by a user and then become visual only, or the audible indication may
be present if user response is required more urgently.
3.1.33 interconnection
An interconnection is a means of transferring information between I&HAS components.
Interconnection does not refer to the system used to transfer information to the ARC (i.e.
the ATS). The standard refers to three types of interconnection:
a) specific wired interconnection – an interconnection used solely for the transfer of
information used by the I&HAS;
b) non-specific wired interconnection – an interconnection used by the I&HAS but
also carrying information for other applications (i.e. any other system, e.g. a
lighting control system or another I&HAS);
c) wire-free interconnection – an interconnection that employs a method of spatial
transmission (e.g. radio frequency).
3.1.42 masked
A movement detector is “masked” when materials are accidentally or deliberately used
to prevent the sensor from detecting movement in the intended detection area. This
involves interference with the movement detector typically by the use of card, boxes or
plates, close to the detector or spray over the surface of the sensor.
This differs from “significant reduction of range” in which the detector is still operational
but detection is no longer possible over the whole of the intended detection area
because of obstacles placed accidentally or deliberately within that area. The detector
has not been directly interfered with but an intruder may move within the intended
detection area without being detected.
“Masking” occurs close to the detector (e.g. within 50 mm) whereas “reduction of range”
refers to a distance of several metres.
3.1.43 message
Each message carried by an interconnection may have a different meaning which is
distinguished by the use of “function data”. The “function data” tells the receiver what the
message means and provides the status or parameter values. The message may also
include “identification” so that the source may be determined and other information for
directing the message to a specific device and to determine whether it has been
corrupted.
3.1.46 non-specific wired interconnection
Refer to the interpretation of 3.1.33 “interconnection” given above.
3.1.48 notification
The use of the term “notification” within the standard also includes the use of warning
devices and alarm transmission equipment with the objective of initiating an intervention
by a response provider.
Attention: In this document references in italics refer to parts of EN 50131-1:2006
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3.1.49 operator
Whereas “user” (refer to 3.1.80) is a person making use of an I&HAS at any access level
(as implied by the definitions of hold-up alarm system, 3.1.28, and indication, 3.1.31) an
operator is a user at access level 2, 3 or (less likely) 4.
3.1.53 periodic communication
“Periodic” means that in a pre-defined period at least one message should occur to
ensure the interconnection is operational. A special message may be used to fulfil the
timing but any message that is acceptable to the system is suitable.
3.1.61 significant reduction of range
Refer to the interpretation of 3.1.42 “masked” given above.
3.1.63 specific wired interconnection
Refer to the interpretation of 3.1.33 “interconnection” given above.
3.1.67 supplementary prime power source
This is a source of power that is similar to the prime power source and does not form
part of the I&HAS but is used as an alternative supply for the supervised premises. An
example would be a standby generator that automatically starts when the utility
company’s AC mains supply is cut.
3.1.80 user
Refer to the interpretation of 3.1.49 “operator” given above.
3.1.83 wire-free interconnection
Refer to the interpretation of 3.1.33 “interconnection” given above.
3.1.84 zone
Although a zone could contain just one detector, the term “zone” is not synonymous with
one detector input. A zone is any defined part of the supervised premises. It may include
any number of detectors. Examples of zones include: a storey of a building; the
perimeter of a building; an outbuilding.
6 Security grading
The security grade should be chosen following a risk assessment. The methods of performing a risk
assessment are beyond the scope of EN 50131-1:2006. The examples given in the note are simply
guidance. Subclauses 7.1 and 7.2 of CLC/TS 50131-7:2008 describe aspects of risk assessment.
NOTE CEN Technical Committee TC 325 has drafted standards in the CEN/TS 14383 series that guide readers in the subject
of risk assessment and grade selection.
7 Environmental classification
EN 50131-1:2006 uses the classification of environmental class given in EN 50130-5:1998. The latter
describes how to test components and is for use by manufacturers. Installers and specifiers should
select components with an environmental class suitable for the intended installation location. One
I&HAS could include components of differing environmental classes. There is no relationship between
environmental class and security grade.
Attention: In this document references in italics refer to parts of EN 50131-1:2006
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8 Functional requirements
8.1 Detection
The requirements related to timing and signal durations are interpreted in 8.9.
8.1.3 Tamper detection
Tampering may be detected in two ways: by components that include tamper detection as specified in
8.7.2 and as a result of the monitoring of interconnection requirements as specified in 8.8.
8.1.4 Fault detection
EN 50131-1:2006 does not specify how component faults are detected. Those requirements are given
in the component standards.
8.2 Masking and range reduction (also 8.4.5 and 8.4.6)
Masking and movement detector range reduction detection is required at the grades specified. The
methods of passing signals or messages indicating these conditions to components of the system are
not specified. Subclauses 8.4.5 and 8.4.6 permit the processing of these conditions to be performed
as if they were either intruder or fault signals or messages. It is permitted to process these conditions
as intruder or fault dependent on other circumstances (but this should be clearly described to users
and the ARC). For example, a masking detection could be processed as if a fault when unset and as if
an intruder when set.
The standard does not prevent additional responses (provided these do not interfere with the
mandatory requirements). Examples could include procedures involving “walk tests”, etc.
8.3.1 Access levels
Subclause 8.3.1 and Table 2 describe the four access levels and give requirements for relationships
between them and the functions accessible to them. One important point is that it does not say that an
I&HAS has four types of user. The access levels described are simply categorisations. When a
function is shown in Table 2 as “permitted” it does not mean that all users have access to that
functionality. The access to a function can be restricted by user type (e.g. a cleaner may not be able to
override a condition that prevents setting) or by restriction of a user to part of the IAS (e.g. the store
man may be prevented from unsetting a high risk area). Access can also be restricted by
circumstances (e.g. a guard patrol may be prevented from unsetting unless an alarm has occurred).
There are other requirements that restrict the access to functions of the system according to the
authority granted to the user at that time. For example, Sublause 8.5 refers to the indications available
to different users. Subclause 8.3.1 also contains many requirements about the access to functions.
In practice, an I&HAS may have many different types of user (e.g. the owner, the installer, a guard, a
cleaner, etc.) but to simplify the description the standard uses four categories. The access level
relates to the ability of a user at a specific time, however:
• the access levels are not hierarchical (e.g. access level 4 is not superior to access level 2);
• users may have authority to gain access at different access levels.
For example, “level 2 key or codes shall not provide access at level 3 or 4” does not mean that a user
cannot have an access level 3 key or code that also permits them access at access level 2.
Attention: In this document references in italics refer to parts of EN 50131-1:2006
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Access level 1 describes the operational restrictions applicable to a person who does not have any
method of gaining authorisation (e.g. a shop customer or an intruder) or a person who has not
currently identified himself to the system (e.g. the owner of a system before entering an identity code).
Access level 2 describes the operational restrictions applicable to a typical operator after authorisation
by the I&HAS. They may set and unset the system but do not have any authority to change the way it
works.
Access level 3 refers to the operational restrictions applicable to a person who has been recognised
by the I&HAS and granted a higher level of authority. They should have some technical knowledge or
in some way manage the use of the system and should have received sufficient training for this.
Typically, this is the installer or maintainer of a system but could also be a manager of the system with
the authority to control other users. Only access level 3 users have the authority to open the
component housings without causing a tamper condition.
There may be access level 4 users. These are people who can significantly alter the operation of the
system beyond simply changing configurable variables. Typically, this would be via a software
upgrade of the CIE. The implication of this access level is that a special method exists to achieve this.
It is not simply the replacement of a memory device by an installer because that could be performed
by a user at access level 3.
Other requirements of the standard may restrict the ability of users according to security grade or
circumstances. The requirements modifying Table 2 are listed here:
Subclause 8.3.6 / At higher grades some conditions cannot be overridden by users at access level 2
Table 5
Subclause 8.3.9 /
At higher grades some conditions cannot be restored by users at access level 2
Table 6
Subclause 8.3.11 Isolation is not permitted by access level 2 users on grades 3 and 4 I&HAS
8.3.2 Authorisation
Examples of “logical key” include a user code entered on a keypad, and an electronic card used with a
proximity reader or a magnetic stripe card.
The authorisation stated in 8.3.2 applies in all cases when a user requires access to functions
(whether it is for unsetting, viewing the event record, or changing site specific data, etc.). In each
grade the number of differs can be the same for access levels 2, 3 and 4. Subclause 8.3.4 permits all
I&HAS to be set (but only set) using the number of differs of grade 1.
EN 50131-1:2006 requires that the functions listed in Table 2 are restricted by use of authorisation
techniques. There are three aspects to the authorisation:
1. the use of authorisation codes or equivalent means (as per 8.3.2);
2. access to functions for users at access level 3 requires an access level 2 user to grant them
permission;
3. access to functions for users at access level 4 requires access levels 2 and 3 users to grant
them permission.
The standard does not specify when, or for how long permission is granted. Permission may be
required on each attempt at authorisation, may be granted for a certain duration (e.g. for the next
8 hours), or for an indefinite period. This is however a standard for systems. It does not give
procedural requirements. Therefore, the requirement is that the I&HAS is an integral part of the
granting of permission (i.e. written authorisation is not sufficient).
Attention: In this document references in italics refer to parts of EN 50131-1:2006
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Individuals use functions at certain access levels. Access levels are not attributes of the person. All
users are considered to be using the system at access level 1 at certain times and, according to the
authority granted to them, can then operate the system using alternative access levels. How this is
achieved is not stated.
8.3.8.2 Unsetting
When this clause applies, remote notification (i.e. the transmission of messages to an ARC) is,
depending on the sequence of events, possibly delayed by 30 s. If intrusion detection occurs after the
end of the unsetting period (entry timer) but before the end of the 30 s delay, then the 30 s delay may
be cancelled and ATS messages sent immediately.
8.3.9 Restoring
In Table 6, “Access levels 2 or 3” means that either access level may restore the I&HAS in accordance
with the requirements of 8.3.9. “Access level 2” means that the I&HAS should allow for one or more
access level 2 users to restore the condition. Note that it is not mandatory to permit all access level 2
(or 3) users to have the ability to restore the I&HAS.
Subclauses 8.4, 8.5 and 8.6 - Processing, indications and notification
The three subjects of processing, indications and notification are very closely linked. Although the
standard divides these items into three clauses they are related. For example, the requirements for
“what” is notified are in 8.4, Processing, rather than in 8.6 (which describes forms of notification). This
interpretation views the system as being “event-driven”. That means that the processing begins as the
result of an event and the outputs (notification and indication) are the result of the processing.
Notification
Event Processing Response
Indication (conditional on access level of user)
The requirements are detailed in the standard by the use of Tables 7, 8, 9 and 10. Figure 1 shows the
relationship between these tables and the CIE. For simplicity of explanation this interpretation
assumes that the processing functions of the CIE are centralised (this is the typical case) but
distributed processing is permitted by the standard.
Attention: In this document references in italics refer to parts of EN 50131-1:2006
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Table 22 – Event
Event
recording
Inputs
recording
CIE Signal
Tables 1 and 4
Table 7 – Processing
Notification st th
to 6
& event
(rows except 1 & 5 )
processing
Means of
Table 10 – Notification
requirements
notification
Table 7 – Processing
Indications
st th
(1 & 5 rows)
See NOTE
Table Table
9 8
Indications Indications
at access at access
level 1 levels
2,3 & 4
Tables 2 User
and 3
authorisation
Unauthorised
process
user
Authorised user
NOTE The indications shown in Table 7 are restricted by the requirements of 8.5 (Tables 8 and 9).
Figure 1 – General processing
Events
All I&HAS are influenced by events of many types. Examples are detection of intrusion, a user
unsetting the IAS, loss of AC power, etc. The standard gives requirements related to many events but
cannot be expected to describe all possible events because of the diversity of products and their use.
The following table links events to places in the standard where requirements are given.
Attention: In this document references in italics refer to parts of EN 50131-1:2006
---------------------- Page: 12 ----------------------
SIST EN 50131-1:2007/IS2:2011
- 11 - EN 50131-1:2006/IS2:2010
Table 1 – Events – Cross references
Referenced within Table number
1 4 & 5 6 7 8 9 22
Hold-up alarm (condition)
Y Y Y Y Y
Intruder alarm (condition)
Y Y Y Y Y
Tamper (condition)
Y Y Y Y Y
Faults
Y Y Y Y Y Y
Zone/Intrusion detector/Hold-up device inhibited
Y Y
Zone/Intrusion detector/Hold-up device Isolated
Y Y
Overriding of prevention of setting conditions
Y
Zone/Detector overridden
Y
Changes to time and date
Y
Changes to site specific data
Y
Set
Y Y Y
Part set
Y Y Y
Unset
Y Y Y
Addition/Deletion of users
Y
Setting process
Y Y
Completion of setting
Y Y
Entry
Y Y
Completion of unsetting
Y Y
Failure to unset (8.3.8.2)
Alert
Y Y
Key:
Y = The table references the event
8.4 Processing
Subclause 8.4, including subclauses, simply states that events are processed according to Table 7.
Although Table 7 of EN 50131-1:2006 includes reference to indications, it is primarily concerned with
notification requirements. In terms of indications, Table 7 merely states that all processed generic
events shall cause an indication to be available (in this case to access levels 2, 3 and 4 users). It does
not require indication at access level 1. The requirements for indications given in 8.5 take precedence
over Table 7.
Table 7 Explanation
This interpretation uses the following excerpt of Table 7 showing just grade 2 to allow explanation. The
indication section has been removed for clarity.
Attention: In this document references in italics refer to parts of EN 50131-1:2006
---------------------- Page: 13 ----------------------
SIST EN 50131-1:2007/IS2:2011
EN 50131-1:2006/IS2:2010 - 12 -
Table 2 – Excerpt of Table 7
I&HAS Outputs Signals and/or Messages
Status
Hold-up Intruder Tamper Fault
Set
External Audible WD Op M M NP
Internal Audible WD Op M M Op
b
ATS Message Type Hold-up Intruder Intruder or Tamper Fault
Unset External Audible WD Op NP NP NP
Internal Audible WD Op NP Op NP
ATS Message Type Op as Hold-up NP Op as Tamper Op as Fault
Key:
M = Mandatory, NP = Not Permitted, Op = Optional
b
Information relating to the Zone of the Hold-Up alarm to be included in the information transmitted to an ARC.
Explanation
1. The column headed “I&HAS Status” refers to the status of the part of the system in which the
event originates. If that part of the IAS is set then the upper part of the table applies. For Hold-up
signals or messages the status refers to the status of the HAS. The IAS and HAS should be
considered separately.
2. In some cases the status of the part of the system in which the event originates may be unknown
(for example, an interconnecti
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