Fire detection and fire alarm systems - Part 25: Components using radio links

This European Standard specifies requirements, test methods and performance criteria for components used in fire alarms systems, installed in and around buildings, which use radio frequency links (RF links) to communicate. It also provides requirements for the evaluation of conformity of the components to the requirements of this European Standard.
Where components work together and this requires knowledge of the system design, this document also specifies requirements on the system.
When the fire detection and fire alarm systems (FDAS) use wired and RF links, the relevant parts of EN 54 apply together with this document. Requirements relevant to wire links are superseded or modified by those included in this European Standard.
This document does not restrict:
   the intended use of radio spectrum, e.g. frequency, power output of devices;
   the allowed maximum number of the components using RF links within the FDAS or one transmission path and/or RF link;
   the allowed maximum number of the components affected by loss of one transmission path and/or RF link.
These requirements relate to national regulations and can vary from member state to member state.

Brandmeldeanlagen - Teil 25: Bestandteile, die Hochfrequenz-Verbindungen nutzen

Diese Europäische Norm legt Anforderungen, Prüfverfahren und Leistungsmerkmale für Bestandteile von Brandmeldeanlagen fest, die innerhalb und außerhalb von Gebäuden installiert werden und Hochfrequenz-Verbindungen (HF-Verbindungen) zur Kommunikation nutzen. Anforderungen an die Bewertung der Konformität der Bestandteile hinsichtlich der Anforderungen in dieser Europäischen Norm werden ebenfalls zur Verfügung gestellt.
Da das Zusammenwirken der Bestandteile Kenntnisse über das Brandmeldesystem erfordert, enthält dieses Dokument ebenfalls Systemanforderungen.
Werden in Brandmeldeanlagen (BMA) sowohl Leitungen als auch HF-Verbindungen verwendet, gelten die entsprechenden Teile von EN 54 zusammen mit diesem Dokument. Anforderungen an drahtgebundene Verbindungen werden ersetzt oder modifiziert durch die Anforderungen in dieser Europäischen Norm.
Dieses Dokument gibt keine Einschränkungen hinsichtlich:
   der vorgesehenen Anwendung des Funkspektrums, z. B. Frequenz, Geräte-Ausgangsleistung,
   der zulässigen Höchstanzahl der Bestandteile, die HF-Verbindungen innerhalb der BMA oder eines
Übertragungsweges und/oder auf einer HF-Verbindung nutzen,
   der zulässigen Höchstanzahl der Bestandteile, die durch den Verlust eines Übertragungsweges und/oder einer HF-Verbindung beeinflusst werden.
Diese Anforderungen unterliegen nationalen Vorschriften und können von Land zu Land unterschiedlich sein.

Systèmes de détection et d'alarme incendie - Partie 25: Composants utilisant des liaisons radioélectriques

La présente Norme européenne définit les exigences, les méthodes d'essai et les critères de performance pour les composants utilisés dans les systèmes d'alarme incendie installés dans les bâtiments et autour de ceux-ci, qui utilisent des liaisons radioélectriques pour communiquer. Elle spécifie également les exigences pour l'évaluation de la conformité des composants aux exigences de la présente Norme européenne.
Lorsque les composants fonctionnent ensemble et que cela nécessite la connaissance de la conception du système, le présent document spécifie également les exigences relatives au système.
Lorsque les systèmes de détection et d'alarme incendie (SDAI) emploient des liaisons radioélectriques et filaires, les parties concernées de la série EN 54 s'appliquent. Les exigences spécifiées dans la présente Norme européenne annulent et remplacent ou modifient les exigences concernant les liaisons filaires.
Le présent document ne traite pas les éléments suivants :
   l'usage prévu du spectre radioélectrique, par exemple la fréquence, la puissance de sortie des dispositifs ;
   le nombre maximal autorisé de composants utilisant des liaisons radioélectriques dans le SDAI ou une voie de transmission et/ou liaison radioélectrique ;
   le nombre maximal autorisé de composants affectés par la perte d'une voie de transmission et/ou liaison radioélectrique.
Ces exigences se rapportent aux réglementations nationales et peuvent varier d'un Etat membre à l'autre.

Sistemi za odkrivanje in javljanje požara ter alarmiranje - 25. del: Sestavni deli za radijske povezave

Ta evropski standard določa zahteve, preskusne metode in merila za delovanje za sestavne dele, ki se uporabljajo v sistemih za javljanje požara ter alarmiranje, nameščene v in okoli stavb, ki uporabljajo radijsko frekvenčne povezave (RF povezave) za komunikacijo. Prav tako podaja zahteve za vrednotenje skladnosti sestavnih delov z zahtevami tega evropskega standarda. Kadar sestavni deli delujejo skupaj, kar zahteva poznavanje načrtovanja sistema, ta dokument prav tako določa zahteve za sistem. Kadar sistemi za odkrivanje in javljanje požara ter alarmiranje (FDAS) uporabljajo ožičene in RF povezave, veljajo ustrezni deli EN 54 skupaj z tem dokumentom. Zahteve, ki se nanašajo na ožičene povezave, so izpodrinjene ali spremenjene z tistimi, ki so vključene v ta evropski standard. Ta dokument ne omejuje: - predvidene uporabe radijskega spektra, npr. frekvence, izhodno moč naprav; - dovoljenega največje števila sestavnih delov, ki uporabljajo RF povezave v okviru FSAD ali ene prenosne potu in/ali RF povezave; - dovoljeno največje število sestavnih delov, na katere vpliva izguba ene poti prenosa in/ali RF povezave. Te zahteve se nanašajo na nacionalne predpise in se lahko razlikujejo med državami članicami.

General Information

Status
Published
Publication Date
04-Mar-2008
Withdrawal Date
30-Mar-2011
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
05-Mar-2008
Completion Date
05-Mar-2008

Relations

Overview

EN 54-25:2008 is a CEN European Standard that defines requirements, test methods and performance criteria for components using radio frequency (RF) links in fire detection and fire alarm systems (FDAS). It covers both component-level and system-level aspects where radio communication is used between detectors, call points, control equipment and other FDAS elements. The standard also specifies procedures for conformity assessment of RF-linked components. EN 54-25 is intended to ensure that radio-based fire alarm components are at least as reliable and robust as wired counterparts when installed in and around buildings.

Key topics and technical requirements

  • System requirements for RF links, including radio frequency link design considerations and interaction with overall FDAS.
  • Radio link performance tests and criteria such as:
    • Immunity to site attenuation (path loss)
    • Alarm signal integrity and detection of lost communication
    • Receiver performance and identification of RF-linked components
    • Immunity to interference and mutual disturbance between systems
    • Antenna requirements and compatibility tests
  • Component requirements covering power supplies, environmental durability and electrical behaviour:
    • Verification of autonomous power source service life
    • Low-power fault signalling and polarity reversal handling
    • Environmental and mechanical tests (dry heat, cold, damp heat, vibration, shock, corrosion)
    • Electromagnetic Compatibility (EMC) immunity testing
  • Testing and conformity: detailed test schedules, test configurations (including use of RF-shielded equipment), and criteria for repeatability/reproducibility.
  • Documentation and marking requirements for manufacturers and suppliers.
  • Explicitly does not impose spectrum usage limits, device power outputs, or maximum numbers of RF components-these aspects are subject to national radio regulations.

Applications and who uses it

EN 54-25 is used by:

  • Manufacturers of radio-linked fire detectors, call points, transmitters, repeaters and gateways to demonstrate compliance and design robust RF components.
  • System designers and integrators creating wireless or hybrid (wired + RF) FDAS installations for buildings.
  • Testing laboratories and certification bodies performing conformity assessment and EMC/environmental testing.
  • Specifiers, installers and maintenance teams seeking standards-aligned performance and documentation for procurement and commissioning.
  • Regulators and authorities assessing suitability of RF-based FDAS in relation to national radio rules.

Typical applications include wireless fire detection systems in existing buildings, temporary installations, retrofits where cabling is impractical, and hybrid systems combining wired and RF links.

Related standards

  • EN 54 series (e.g., EN 54-2, EN 54-4, EN 54-5, EN 54-11)
  • EN 50130-4 (EMC immunity requirements for alarm systems)
  • EN/IEC 60068 environmental test series

Keywords: EN 54-25, fire detection, fire alarm systems, components using radio links, RF links, CEN, wireless fire alarm, conformity assessment.

Standard
EN 54-25:2008
English language
52 pages
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Standards Content (Sample)


SLOVENSKI STANDARD
01-julij-2008
Sistemi za odkrivanje in javljanje požara ter alarmiranje - 25. del: Sestavni deli za
radijske povezave
Fire detection and fire alarm systems - Part 25: Components using radio links
Brandmeldeanlagen - Teil 25: Bestandteile, die Hochfrequenz-Verbindungen nutzen
Systèmes de détection et d'alarme incendie - Partie 25: Composants utilisant des
liaisons radioélectriques
Ta slovenski standard je istoveten z: EN 54-25:2008
ICS:
13.220.20 3RåDUQD]DãþLWD Fire protection
13.320 Alarmni in opozorilni sistemi Alarm and warning systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 54-25
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2008
ICS 13.220.20
English Version
Fire detection and fire alarm systems - Part 25: Components
using radio links
Systèmes de détection et d'alarme incendie - Partie 25: Brandmeldeanlagen - Teil 25: Bestandteile, die
Composants utilisant des liaisons radioélectriques Hochfrequenz-Verbindungen nutzen
This European Standard was approved by CEN on 20 January 2008.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 54-25:2008: E
worldwide for CEN national Members.

Contents Page
Foreword .4
Introduction.6
1 Scope.7
2 Normative references.7
3 Terms, definitions and abbreviations .8
3.1 Terms and definitions .8
3.2 Abbreviations.10
4 System requirements.10
4.1 General .10
4.2 Radio frequency links .10
4.2.1 Immunity to site attenuation .10
4.2.2 Alarm signal integrity.11
4.2.3 Identification of the RF linked component .11
4.2.4 Receiver performance.11
4.2.5 Immunity to interference .12
4.2.6 Loss of communication .12
4.2.7 Antenna .13
5 Components requirements.13
5.1 Compliance .13
5.2 General .13
5.3 Power supply equipment.13
5.4 Environmental related requirements.14
5.4.1 General .14
5.4.2 General test procedure .14
5.4.3 Provision for testing .15
6 Documentation .15
7 Marking.16
8 Tests .16
8.1 General requirements .16
8.1.1 General .16
8.1.2 Standard atmospheric conditions for testing .16
8.1.3 Operating conditions for tests.16
8.1.4 Mounting and orientation .16
8.1.5 Tolerances.16
8.2 System tests .17
8.2.1 Test schedule for system tests.17
8.2.2 Test for immunity to site attenuation .17
8.2.3 Test for alarm signal integrity.18
8.2.4 Test for identification of RF linked components.18
8.2.5 Test for the receiver performance .18
8.2.6 Test for mutual disturbance between systems of the same manufacturer.19
8.2.7 Test of compatibility with other band users.20
8.2.8 Test for the detection of a loss of communication on a link .21
8.2.9 Test of the antenna .22
8.3 Components tests .22
8.3.1 General .22
8.3.2 Test schedule for components tests.22
8.3.3 Verification of the service life of the autonomous power source(s) . 24
8.3.4 Test for the low power condition fault signal . 24
8.3.5 Test for the polarity reversal. 25
8.3.6 Repeatability test . 26
8.3.7 Reproducibility test. 26
8.3.8 Variation of supply parameters . 27
8.3.9 Dry heat (operational). 27
8.3.10 Dry heat (endurance) . 28
8.3.11 Cold (operational) . 28
8.3.12 Damp heat, cyclic (operational). 29
8.3.13 Damp heat, steady state (operational). 30
8.3.14 Damp heat, steady state (endurance) . 31
8.3.15 SO -corrosion (endurance) . 31
8.3.16 Shock (operational). 32
8.3.17 Impact (operational). 33
8.3.18 Vibration, sinusoidal (operational). 33
8.3.19 Vibration, sinusoidal (endurance) . 34
8.3.20 Electromagnetic Compatibility (EMC), Immunity tests (operational) . 35
Annex A (normative) Test configuration by using radio frequency shielded test equipment . 36
Annex B (normative) Immunity to site attenuation (path loss). 40
Annex C (informative) Data and calculation of the service life of the autonomous power source(s) . 41
Annex ZA (informative) Clauses of this European Standard addressing the provisions of the EU
Construction Products Directive (89/106/EEC). 43
Bibliography . 52

Foreword
This document (EN 54-25:2008) has been prepared by Technical Committee CEN/TC 72 “Fire detection and
fire alarm systems”, the secretariat of which is held by BSI.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by September 2008, and conflicting national standards shall be
withdrawn at the latest by March 2011.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document.
EN 54 Fire detection and fire alarm systems consists of the following parts:
 Part 1: Introduction
 Part 2: Control and indicating equipment
 Part 3: Fire alarm devices – Sounders
 Part 4: Power supply equipment
 Part 5: Heat detectors – Point detectors
 Part 7: Smoke detectors – Point detectors using scattered light, transmitted light or ionisation
 Part 10: Flame detectors – Point detectors
 Part 11: Manual call points
 Part 12: Smoke detectors – Line detectors using an optical light beam
 Part 13: Compatibility assessment of system components
 Part 14: Guidelines for planning, design, installation, commissioning, use and maintenance
 Part 15: Point detectors using a combination of detected fire phenomena
 Part 16: Voice alarm control and indicating equipment
 Part 17: Short-circuit isolators
 Part 18: Input/output devices
 Part 20: Aspirating smoke detectors
 Part 21: Alarm transmission and fault warning routing equipment
 Part 22: Line-type heat detectors
 Part 23: Fire alarm devices – Visual alarms
 Part 24: Components of voice alarm systems – Loudspeakers
 Part 25: Components using radio links
1)
 Part 26: Point fire detectors using carbon monoxide sensors
1)
 Part 27: Duct smoke detectors
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.

1) Under preparation.
Introduction
The aim of this European Standard is to define additional requirements to other parts of EN 54 and tests that
allow radio fire detection systems and components complying with them to be at least efficient and stable as
wired fire detection systems and components complying with the current requirements of cable based systems
in the EN 54 standards.
System and component aspects are dealt with in this European Standard because it is difficult to describe the
components of a radio-linked system separately.
Capacity limitations with respect to the use of radio components may be specified in national technical rules or
guidelines.
Technical aspects of the assessment of frequencies, bands and channels should be considered.
1 Scope
This European Standard specifies requirements, test methods and performance criteria for components used
in fire alarms systems, installed in and around buildings, which use radio frequency links (RF links) to
communicate. It also provides requirements for the evaluation of conformity of the components to the
requirements of this European Standard.
Where components work together and this requires knowledge of the system design, this document also
specifies requirements on the system.
When the fire detection and fire alarm systems (FDAS) use wired and RF links, the relevant parts of EN 54
apply together with this document. Requirements relevant to wire links are superseded or modified by those
included in this European Standard.
This document does not restrict:
 the intended use of radio spectrum, e.g. frequency, power output of devices;
 the allowed maximum number of the components using RF links within the FDAS or one transmission
path and/or RF link;
 the allowed maximum number of the components affected by loss of one transmission path and/or RF link.
These requirements relate to national regulations and can vary from member state to member state.
2 Normative references
The following referenced documents are indispensable for the application 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.
EN 54-2, Fire detection and fire alarm systems — Part 2: Control and indicating equipment
EN 54-4, Fire detection and fire alarm systems — Part 4: Power supply equipment
EN 54-5, Fire detection and fire alarm systems — Part 5: Heat detectors — Point detectors
EN 54-11, Fire detection and fire alarm systems — Part 11: Manual call points
EN 50130-4, Alarm systems — Part 4: Electromagnetic compatibility — Product family standard: Immunity
requirements for components of fire, intruder and social alarm systems
EN 60068-2-1, Environmental testing — Part 2-1: Tests — Tests A: Cold (IEC 60068-2-1:2007)
EN 60068-2-2, Basic environmental testing procedures — Part 2-2: Tests — Tests B: Dry heat
(IEC 60068-2-2:1974 + IEC 60068-2-2A:1976)
EN 60068-2-6, Environmental testing — Part 2-6: Tests — Tests Fc: Vibration (sinusoidal) (IEC 60068-2-
6:1995 + Corrigendum 1995)
EN 60068-2-27, Basic environmental testing procedures — Part 2: Tests — Test Ea and guidance: Shock
(IEC 60068-2-27:1987)
EN 60068-2-30, Environmental testing — Part 2-30: Tests — Test Db: Damp heat, cyclic (12 h + 12 h cycle)
(IEC 60068-2-30:2005)
EN 60068-2-42, Environmental testing — Part 2-42: Test methods — Test Kc: Sulphur dioxide test for
contacts and connections (IEC 60068-2-42:2003)
EN 60068-2-78, Environmental testing — Part 2-78: Tests — Test Cab: Damp heat, steady state
(IEC 60068-2-78:2001)
EN 300113-1 V 1.4.1:2002, Electromagnetic compatibility and Radio spectrum Matters (ERM) — Land mobile
service — Radio equipment intended for the transmission of data (and/or speech) using constant or non-
constant envelope modulation and having an antenna connector — Part 1: Technical characteristics and
methods of measurement
EN 300220-1 V 1.3.1:2000, Electromagnetic compatibility and Radio spectrum Matters (ERM) — Short range
devices — Radio equipment to be used in the 25 MHz to 1000 MHz frequency range with power levels
ranging up to 500 mW — Part 1: Technical characteristics and test methods
EN ISO 9001, Quality management systems — Requirements (ISO 9001:2000)
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in the relevant part of EN 54 and the
following apply.
3.1.1
antenna
element of a radio component of the fire detection and fire alarm system (FDAS) that allows coupling between
the component and the media where radio frequency (RF) waves are propagated
3.1.2
assigned band
frequency band within which the equipment is authorised to operate
3.1.3
site attenuation
degradation of the RF signal due to either path loss or a change in the environment of the FDAS after its
installation
NOTE Site attenuation can be changed by e.g. installation or relocation of reflection or absorption materials.
3.1.4
autonomous power source
independent power supply equipment (i.e. without any link with the public power supply or an equivalent
system) not rechargeable during operation and able by itself to allow the supplied component to run
NOTE An autonomous power source is e.g. a primary battery.
3.1.5
base station
transceiver in the system which communicates with a certain number of components
3.1.6
collision
simultaneous transmissions, from two or more transmitters belonging to the same system, of sufficient signal
strength to cause, by mutual interaction, corruption or obliteration of the information carried by the RF signals
3.1.7
compatibility
capacity of a component of the system to operate with another component of this system, in the limits
specified by the manufacturer and by the applicable product standard if this standard exists and in specified
configurations of the system
3.1.8
fire detection and fire alarm system
FDAS
group of components including a CIE which, when arranged in (a) specified configuration(s), is capable of
detecting and indicating a fire, and giving signals for appropriate action
[EN 54-13:2005, definition 3.1.7]
3.1.9
identification code
part of a message used to identify a transmitting RF communication device belonging to the system
3.1.10
intermediate element
device connected to a transmission path of a fire detection and fire alarm system, used to receive and/or
transmit signals necessary for the operation of the fire detection and fire alarm system
NOTE An intermediate element meets the requirements of an input/output device in accordance with EN 54-18 but it
is not restricted to electrical signals.
3.1.11
manufacturer
natural or legal person, who places the product on the market under his own name
NOTE Normally, the manufacturer designs and manufactures the product himself. A manufacturer can also design,
manufacture, assemble, pack, process or label the product as subcontractor or he assembles, packs, processes, or labels
products as ready-made products.
3.1.12
radio frequency link
RF link
means of communication between at least two points, using RF wave propagation
NOTE The RF link is the equivalent to the transmission path as defined in other parts of EN 54.
3.1.13
radio part
component or part of the component incorporating the receiver and/or transmitter
NOTE The radio part can include a power supply, e.g. an autonomous power source.
3.1.14
receiver
device which receives the RF energy corresponding to a RF link
NOTE The receiver can be incorporated in a component of the FDAS.
3.1.15
RF interference
RF transmission from any other source other than any component of the FDAS that may cause corruption or
obliteration of wanted signals and not conforming to the definition of collision or message substitution
3.1.16
service life
period of useful life of an autonomous power source under specified conditions
3.1.17
special tool
device not normally carried by the public (e.g. a key), normally provided by the manufacturer and which is
used for opening the enclosure of the component to detach the antenna
NOTE It is intended to deter unauthorised access to the antenna, while being available on site either at a defined
location or from a "responsible person" familiar with and having knowledge of the system.
3.1.18
transmitter
device which generates the RF energy necessary for a RF link
NOTE The transmitter can be incorporated in a component of the FDAS.
3.2 Abbreviations
For the purposes of this document, the following abbreviations apply.
CIE Control and indicating equipment
FDAS Fire detection and fire alarm systems
PSE Power supply equipment
RF Radio frequency
4 System requirements
4.1 General
The requirements of this document shall be applied, together with requirements of the relevant part of EN 54,
where the radio-linked component has the same function as the component covered by that part and when not
otherwise specified in this European Standard.
For example, an RF linked component having the function of a heat detector shall comply with
EN 54-5 and a component having the function of a manual call point shall comply with EN 54-11.
4.2 Radio frequency links
4.2.1 Immunity to site attenuation
The manufacturer shall provide means either in the component itself or by the system configuration to ensure
that a site attenuation, which may be caused by influences for different reasons on site, may not affect the RF
link adversely in a way that communication between components is not possible. This reserve of site
attenuation shall be specified as follows:
a) at least 10 dB up to frequencies of 10 MHz;
b) for frequencies of > 10 MHz as calculated in Annex B.
The manufacturer shall provide the necessary documentation and/or means for the assessment which permits
the full functionality of the component to be assessed. If these means are a part of the component, the user
shall not be able to interfere with these means.
The test includes verification by an assessment and shall be carried out in accordance with 8.2.2.
4.2.2 Alarm signal integrity
The components of the system shall use a transmission protocol on the transmission path and/or the RF link
to ensure that no alarm message is lost.
The test shall be carried out in accordance with 8.2.3.
4.2.3 Identification of the RF linked component
4.2.3.1 Each RF linked component shall be identified by an individual identification code as belonging to
one specific FDAS.
4.2.3.2 The manufacturer shall provide means to ensure that a RF linked component shall not be
accepted by other FDAS.
The test shall be carried out in accordance with 8.2.4.
4.2.3.3 The manufacturer shall provide the necessary documentation and/or means for the assessment
of this requirement.
4.2.4 Receiver performance
The receiver shall meet the requirements given in Table 1.
Table 1 — Minimum receiver performance characteristics
Frequency offset from Notes
Characteristics Limit
the working frequency
Adjacent channel For all band widths and
≥ 35 dB

selectivity modulation schemes
≥ 40 dB ± 1 MHz
In direct sequence spread
≥ 45 dB ± 2 MHz
Blocking or spectrum systems (DSSS) the
working frequency is the centre
desensitization
≥ 60 dB ± 5 MHz
frequency
≥ 65 dB ± 10 MHz
Spurious response
≥ 40 dB  
rejection
The manufacturer of the receiver shall provide a test report by a test laboratory to demonstrate that the
requirements of this clause are fulfilled. If the manufacturer cannot provide this evidence, the tests described
in 8.2.5 shall be carried out. The manufacturer shall provide the means to carry out the test, e.g. stop
frequency hopping.
4.2.5 Immunity to interference
4.2.5.1 General
The following kind of interferences on the RF link shall be covered:
a) radio influences from own system;
b) radio influences from other users of the spectrum.
The following influences are not covered:
c) random influences as a result of electromagnetic effects, because these are covered by EMC guidelines
(see EN 50130-4);
d) deliberate attacks on the radio controlled transmission paths with the help of electromagnetic effects
(sabotage via the radio controlled route), because no special sabotage resistance is required for fire
alarm systems in the parts of EN 54.
4.2.5.2 Availability of RF link in two or more technically similar systems coming from the same
manufacturer
In the case of two or more technically similar systems coming from the same manufacturer operating within
the radio range it shall be ensured that the RF links do not mutually impede one another.
The manufacturer shall specify the means. The means shall be suitable to ensure the availability of all parts of
the system in all expected system configurations.
The test shall be carried out in accordance with 8.2.6.
4.2.5.3 Availability of the RF link in the presence of other band users
The manufacturer shall take measures to ensure that signal transmission is possible even if other users are
working in the same band.
These measures shall ensure that an external user who uses the maximum permitted limits in the assigned
band or sub-band, such as bandwidth and duty cycle, does not cause interference.
NOTE The definition in EN 300220-1 V 1.3.1:2000 applies for establishing the duty cycle.
The test shall be carried out in accordance with 8.2.7.
4.2.5.4 Integrity of the RF link
The application of one of the interfering RF signals defined in 8.2.7 to one of the FDAS receivers shall cause
neither an alarm condition nor a fault warning condition at the CIE.
4.2.6 Loss of communication
The loss of the ability of the system to transmit a message of any RF linked component to the CIE within in
EN 54-2 defined periods shall be recognized in less than 300 s and shall be indicated in less than 100 s.
The test shall be carried out in accordance with 8.2.8.
4.2.7 Antenna
The antenna or its cable shall only be detachable by opening the enclosure of the component or by using
special tools provided by the manufacturer.
The test shall be carried out in accordance with 8.2.9.
5 Components requirements
5.1 Compliance
In order to comply with this standard the components shall meet the requirements of this clause which shall be
verified by visual inspection or engineering assessment, shall be tested as described in Clause 8 and shall
meet the requirements of the tests.
5.2 General
5.2.1 All components shall meet the requirements of the relevant part of EN 54 and the following additional
specific requirements, including the transmission paths and/or radio links.
5.2.2 The component shall be designed that the removal from its base and/or point of installation are
detected and indicated as a fault.
5.2.3 Components that rely on software control in order to fulfil the requirements of this specification shall
comply with the relevant part of EN 54.
5.3 Power supply equipment
5.3.1 The components shall be powered by:
a) an autonomous power source, e.g. a primary battery, or
b) a power supply equipment in accordance with EN 54-4.
NOTE In accordance with EN 54-2 a CIE is powered with power supply equipment complying with EN 54-4.
5.3.2 All components powered by an autonomous power source shall comply with the following
requirements:
a) the autonomous power source shall be within the enclosure of the component;
b) the autonomous power source shall allow normal operation of the component for a minimum period of
36 months.
The manufacturer shall declare the type of the autonomous power source and its service life for the
component in normal operation. The service life shall be demonstrated by a statement of calculation. This
calculation shall take into account the mean consumption and voltage under quiescent and at standard
atmospheric conditions. The product of the specified discharge time of 36 months and the mean discharge
current shall not be greater than 85 % of the rated capacity of the power source.
NOTE The remaining 15 % of the rated capacity takes into account of self discharge of the power source.
The mean consumption shall be calculated based on the electronic element of the circuit.
Where calculation is not practical, the mean consumption shall be measured at nominal voltage for at least 1 h
under quiescent operation after the stabilisation period given by the manufacturer.
The verification of this calculation shall be made as defined in 8.3.3. Annex C gives an example for the
calculation of the service life of the autonomous power source.
5.3.3 All components powered by an autonomous power source shall be able to transmit a fault signal (low
power) before the power source fails. The following conditions shall be taken into account:
a) the component shall be capable of generating and transmitting a fault signal within 60 min after replacing
a good or new autonomous power source by a preconditioned power source representing a discharged
power source at the end of its service life;
b) the component shall be capable of operating as intended when it is activated using the preconditioned
power source representing a discharged power source at the end of its service life;
c) the components shall keep the alarm condition and/or another activated condition for at least 30 min
(where alarm condition is not applicable).
The procedure to verify this requirement is specified in 8.3.4.
5.3.4 The loss of the power source shall be indicated as a fault signal from point in accordance with
EN 54-2. Where several power sources are used for different functions in one component, the fault signal shall
be given for each power source, see 5.3.3.
5.3.5 The component shall either be designed to make polarity reversal impossible or, if not, the polarity of
the connections of the power source shall be identifiable and the polarity reversal shall not damage the
component.
The procedure to verify the reversal of polarity is specified in 8.3.5.
5.4 Environmental related requirements
5.4.1 General
Components shall be subjected to the environmental tests defined in the relevant part of EN 54. The
functional tests of the radio part of the component before and after the environmental treatment shall be
carried out in accordance with 8.3.
NOTE The type and severity of the environmental tests are separately specified for the following main categories of
equipment containing a transmitter/receiver:
 control and indicating equipment (CIE);
 other components (e.g. detectors, manual call points, input/output devices).
5.4.2 General test procedure
Unless otherwise stated, the components of the FDAS containing the transmitter and the receiver respectively
shall be mounted in the radio frequency shielded test equipment as described in Annex A.
When testing the component transmitting the alarm signal, it shall be tested together with a typical component
receiving the alarm signal and vice versa.
The measurements of the attenuation values A shall be always carried out with the component mounted in the
test equipment, and with the fixtures closed correctly. However, during some of the environmental exposures
the fixtures shall be opened or the equipment under test shall be taken out of the fixture.
5.4.3 Provision for testing
The manufacturer shall provide a sufficient number of specimens for testing. The required number mentioned
in Table 2 is dependent on the type of component to be tested.
Table 2 — Provisions for testing
Components Number of specimens
CIE At least 1 (in accordance with EN 54-2)
Other components At least 16 (in accordance with the
(e.g. detectors, manual call points, input/output relevant part of EN 54)
devices)
The specimens submitted shall be deemed representative of the manufacturer's normal production with regard to
their construction and calibration. Where specimens comprise at least two parts: a base (socket) and a head
(body) and the radio part and the power supply are located only in one of these parts, only this part shall be
tested in accordance with this European Standard. The other part is used to trigger the radio part.
6 Documentation
The manufacturer shall prepare the documentation to evaluate the compatibility in the configuration(s)
specified by the manufacturer. This documentation shall include at least the following:
a) a list of the relevant components of the fire detection and fire alarm system. This list shall define for each
component the functions (a part of this definition shall include a description of the software and of the
hardware) and the technical information for each component to facilitate proof of the compatibility of each
sub-system inside a global network system;
b) test reports relative to the conformity of the components, with indication of the relevant part of EN 54;
c) characteristics of the RF link between each component and the CIE;
d) utilisation limits of the system, e.g. configuration, number of components which are able to communicate
with one base station, functional limits.
The documentation of the input/output devices shall comply with the requirements of this clause.
The input/output devices shall be delivered with technical instructions and sufficient installation and
maintenance information to allow their setting and their operation, or, if all of this information is not provided
with each input/output device, the reference to the appropriate documents shall be indicated on each device
or given with it.
For an efficient operation of the input/output device, this documentation shall detail the requirements for the
correct processing of the signals of the input/output device. This can be done by a detailed technical
specification or by a reference to an adequate processing protocol or by a reference to the list of CIE that can
be connected etc.
NOTE Additional information can be required by the certification body for the assessment of the input/output device
according to this European Standard.
7 Marking
The marking shall be in accordance with the marking requirements of the relevant part of EN 54.
The element containing radio part shall be additionally clearly marked with:
a) the number of this European Standard, i.e. EN 54-25;
b) marking required by other regulations;
The element containing an autonomous power source shall be additionally clearly marked with:
c) the type and the reference of the power source(s) recommended by the manufacturer. These indications
shall be visible during its replacement.
NOTE Where ZA.3 covers the same information as this clause, the requirements of this clause are met.
8 Tests
8.1 General requirements
8.1.1 General
The combination of the tests in accordance with the other parts of EN 54 with the tests required in this
European Standard is permitted.
NOTE Detachable components comprise at least two parts: a base (socket) and a head (body). If the specimens are
detachable elements, then at least two parts together are regarded as a complete component.
8.1.2 Standard atmospheric conditions for testing
Unless otherwise stated in the test procedures the conditions defined in the relevant part of EN 54 shall apply.
8.1.3 Operating conditions for tests
If a test method requires a specimen to be operational, then the specimen shall be powered as required by the
manufacturer and shall be connected to a suitable monitoring equipment with characteristics as required by
the manufacturer’s data. Unless otherwise specified in the test method, the supply parameters applied to the
specimen shall be set within the manufacturer’s specified range(s) and shall remain substantially constant
throughout the tests. The value chosen for each parameter shall normally be the nominal value or the mean of
the specified range.
The details of the powered and of the monitoring equipment, as well as the alarm criteria used, shall be given
in the test report.
8.1.4 Mounting and orientation
The mounting and orientation requirements defined in the relevant part of EN 54 shall apply.
8.1.5 Tolerances
The requirements for tolerances defined in the relevant part of EN 54 shall apply.
8.2 System tests
8.2.1 Test schedule for system tests
The test order and the number of samples are given in Table 3.
Table 3 — Test schedule for system tests
Device/component
System tests Subclause
CIE Other components
Immunity to site attenuation documentation
8.2.2 documentation only
only
Alarm signal integrity 10
8.2.3 1 or maximum number of acceptable samples
by the system, if less than 10
Identification of RF linked documentation
8.2.4 documentation only
components
only
Receiver performance 8.2.5 see Table 4 see Table 4
Mutual disturbance between systems of 10
the same manufacturer 8.2.6 at least 2 or maximum number of acceptable samples
by the system, if less than 10
Compatibility with other band users 8.2.7 at least 1 at least 1
Detection of a loss of communication on
8.2.8 at least 1 as specified by the manufacturer
a link
Antenna 8.2.9 1 1
8.2.2 Test for immunity to site attenuation
8.2.2.1 Object
To demonstrate that the appropriate RF link fulfils the requirements defined in 4.2.1 in a medium free from
interference and in the relevant frequency band.
8.2.2.2 Test procedure
In accordance with the manufacturer’s documentation the requirement of 4.2.1 shall be verified by engineering
assessment.
NOTE The assessment takes into account the difference of the technical approaches of different manufacturers to
avoid communication loss by site attenuation.
8.2.2.3 Requirements
The assessment shall indicate that the requirements of 4.2.1 are fulfilled.
8.2.3 Test for alarm signal integrity
8.2.3.1 Object
To demonstrate that an alarm message to or from a component is not lost due to collisions and/or RF link
occupation and the system complies with the requirements defined in 4.2.2.
8.2.3.2 Procedure
10 components shall be simultaneously triggered to transmit or receive alarm messages by means provided
by the manufacturer. If the system capacity is less than 10 components, the maximum number of components
shall be triggered.
8.2.3.3 Requirements
The first alarm message shall be indicated within 10 s and the last alarm message within 100 s. No alarm
message shall be lost.
NOTE The value of 100 s is not intended to show the compliance with the alarm response time or with the fault
response time of EN 54-2.
8.2.4 Test for identification of RF linked components
8.2.4.1 Object
To demonstrate, that the component complies with the requirements of 4.2.3.
8.2.4.2 Procedure
Verification of the documentation provided by the manufacturer that the requirements in accordance with
4.2.3.1 and 4.2.3.2 are fulfilled.
8.2.4.3 Requirements
The manufacturer shall show that the identification of the RF linked component complies with the
requirements defined in 4.2.3.
The probability that the RF linked component is identified and accepted as belonging to another system from
the same system manufacturer unintended to receive shall be less than 1:1 000 000.
8.2.5 Test for the receiver performance
8.2.5.1 Object
To demonstrate, that the component complies with the requirements of 4.2.4.
8.2.5.2 Test procedure
The characteristics shall be tested in accordance with Table 4.
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Frequently Asked Questions

EN 54-25:2008 is a standard published by the European Committee for Standardization (CEN). Its full title is "Fire detection and fire alarm systems - Part 25: Components using radio links". This standard covers: This European Standard specifies requirements, test methods and performance criteria for components used in fire alarms systems, installed in and around buildings, which use radio frequency links (RF links) to communicate. It also provides requirements for the evaluation of conformity of the components to the requirements of this European Standard. Where components work together and this requires knowledge of the system design, this document also specifies requirements on the system. When the fire detection and fire alarm systems (FDAS) use wired and RF links, the relevant parts of EN 54 apply together with this document. Requirements relevant to wire links are superseded or modified by those included in this European Standard. This document does not restrict:  the intended use of radio spectrum, e.g. frequency, power output of devices;  the allowed maximum number of the components using RF links within the FDAS or one transmission path and/or RF link;  the allowed maximum number of the components affected by loss of one transmission path and/or RF link. These requirements relate to national regulations and can vary from member state to member state.

This European Standard specifies requirements, test methods and performance criteria for components used in fire alarms systems, installed in and around buildings, which use radio frequency links (RF links) to communicate. It also provides requirements for the evaluation of conformity of the components to the requirements of this European Standard. Where components work together and this requires knowledge of the system design, this document also specifies requirements on the system. When the fire detection and fire alarm systems (FDAS) use wired and RF links, the relevant parts of EN 54 apply together with this document. Requirements relevant to wire links are superseded or modified by those included in this European Standard. This document does not restrict:  the intended use of radio spectrum, e.g. frequency, power output of devices;  the allowed maximum number of the components using RF links within the FDAS or one transmission path and/or RF link;  the allowed maximum number of the components affected by loss of one transmission path and/or RF link. These requirements relate to national regulations and can vary from member state to member state.

EN 54-25:2008 is classified under the following ICS (International Classification for Standards) categories: 13.220.20 - Fire protection. The ICS classification helps identify the subject area and facilitates finding related standards.

EN 54-25:2008 has the following relationships with other standards: It is inter standard links to EN 54-25:2008/AC:2012, EN 54-25:2008/AC:2010, prEN 54-25. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

EN 54-25:2008 is associated with the following European legislation: EU Directives/Regulations: 305/2011, 89/106/EEC; Standardization Mandates: M/109. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.

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