ISO 7240-25:2010

Fire detection and fire alarm systems — Part 25: Components using radio transmission paths

ISO 7240-25:2010 specifies requirements, test methods and performance criteria for components used in fire detection and alarm systems, installed in and around buildings, which use radio-frequency (r.f.) transmission paths. It specifies requirements for the assessment of conformance of the components to the requirements of ISO 7240-25:2010. Where components work together and this requires knowledge of the system design, ISO 7240-25:2010 also specifies requirements for the system. When the fire detection and alarm system uses wired and r.f. transmission paths, the relevant parts of ISO 7240 apply together with ISO 7240-25:2010. Requirements relevant to wire transmission paths are superseded or modified by those included in ISO 7240-25:2010. ISO 7240-25:2010 does not restrict the intended use of radio spectrum, e.g. frequency, power output of devices; the allowed maximum number of the components using r.f. transmission paths within the fire detection and alarm system or one wire transmission path and/or r.f. transmission path; or the allowed maximum number of the components affected by loss of one wire transmission path and/or r.f. transmission path.

Systèmes de détection et d'alarme d'incendie — Partie 25: Composants utilisant des voies de transmission radio

General Information

• Status: Published
• Publication Date: 10-May-2010
• ICS: 13.220.20 - Fire protection
• Technical Committee: ISO/TC 21/SC 3 - Fire detection and alarm systems
• Drafting Committee: ISO/TC 21/SC 3 - Fire detection and alarm systems
• Current Stage: 9060 - Close of review
• Completion Date: 02-Dec-2028

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 7240-25
First edition
2010-06-01
Fire detection and fire alarm systems —
Part 25:
Components using radio transmission
paths
Systèmes de détection et d'alarme d'incendie —
Partie 25: Composants utilisant des voies de transmission radio

Reference number
©
ISO 2010
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ii © ISO 2010 – All rights reserved

Contents Page
Foreword .iv
Introduction.vi
1 Scope.1
2 Normative references.1
3 Definitions and abbreviations .2
3.1 Definitions .2
3.2 Abbreviated terms .5
4 System requirements.5
4.1 General .5
4.2 Radio frequency transmission paths .5
5 Components requirements.7
5.1 Compliance .7
5.2 General .7
5.3 Power supply equipment.7
5.4 Environmental.8
6 Marking.9
7 Data.9
7.1 General .9
7.2 Input/output devices .10
8 Tests .10
8.1 General requirements .10
8.2 System tests .11
8.3 Components tests .21
Annex A (normative) Test configuration by using radio-frequency-shielded test equipment .37
Annex B (normative) Immunity to site attenuation (path loss) .41
Annex C (informative) Data and calculation of the service life of the autonomous power source(s).42
Bibliography.44

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 7240-25 was prepared by Technical Committee ISO/TC 21, Equipment for fire protection and fire fighting,
Subcommittee SC 3, Fire detection and alarm systems.
ISO 7240 consists of the following parts, under the general title Fire detection and alarm systems:
⎯ Part 1: General and definitions
⎯ Part 2: Control and indicating equipment
⎯ Part 3: Audible alarm devices
⎯ Part 4: Power supply equipment
⎯ Part 5: Point-type heat detectors
⎯ Part 6: Carbon monoxide fire detectors using electro-chemical cells
⎯ Part 7: Point-type smoke detectors using scattered light, transmitted light or ionization
⎯ Part 8: Carbon monoxide fire detectors using an electro-chemical cell in combination with a heat sensor
⎯ Part 9: Test fires for fire detectors [Technical Specification]
⎯ Part 10: Point-type flame detectors
⎯ Part 11: Manual call points
⎯ Part 12: Line type smoke detectors using a transmitted optical beam
⎯ Part 13: Compatibility assessment of system components
⎯ Part 14: Guidelines for drafting codes of practice for design, installation and use of fire detection and fire
alarm systems in and around buildings [Technical report]
iv © ISO 2010 – All rights reserved

⎯ Part 15: Point type fire detectors using scattered light, transmitted light or ionization sensors in
combination with a heat sensor
⎯ Part 16: Sound system control and indicating equipment
⎯ Part 17: Short-circuit isolators
⎯ Part 18: Input/output devices
⎯ Part 19: Design, installation, commissioning and service of sound systems for emergency purposes
⎯ Part 20: Aspirating smoke detectors
⎯ Part 21: Routing equipment
⎯ Part 22: Smoke-detection equipment for ducts
⎯ Part 24: Sound-system loudspeakers
⎯ Part 25: Components using radio transmission paths
⎯ Part 27: Point-type fire detectors using a scattered-light, transmitted-light or ionization smoke sensor, an
electrochemical-cell carbon-monoxide sensor and a heat sensor
⎯ Part 28: Fire protection control equipment
A part 23, dealing with visual alarm indicators, is under development.
Introduction
This part of ISO 7240 is based on European Standard EN 54-25, prepared by the European Committee for
Standardization, CEN/TC 72, Fire detection and fire alarm systems.
This part of ISO 7240 defines requirements and tests in addition to those in other parts of ISO 7240 that allow
components of a fire detection and alarm system using radio transmission paths to operate with an integrity
and stability similar to those of wire transmission paths.
This part of ISO 7240 includes both equipment and system requirements because of the integral relationship
between equipment that forms the system.
Limitations to the use of radio components, such as capacity, can be specified in national rules or guidelines.
Technical aspects of the assessment of frequencies, bands and channels should be considered.

vi © ISO 2010 – All rights reserved

INTERNATIONAL STANDARD ISO 7240-25:2010(E)

Fire detection and fire alarm systems —
Part 25:
Components using radio transmission paths
1 Scope
This part of ISO 7240 specifies requirements, test methods and performance criteria for components used in
fire detection and alarm systems, installed in and around buildings, which use radio-frequency (r.f.)
transmission paths. It specifies requirements for the assessment of conformance of the components to the
requirements of this part of ISO 7240.
Where components work together and this requires knowledge of the system design, this part of ISO 7240
also specifies requirements for the system.
When the fire detection and alarm system uses wired and r.f. transmission paths, the relevant parts of
ISO 7240 apply together with this part of ISO 7240. Requirements relevant to wire transmission paths are
superseded or modified by those included in this part of ISO 7240.
This part of ISO 7240 does not restrict
⎯ the intended use of radio spectrum, e.g. frequency, power output of devices;
⎯ the allowed maximum number of the components using r.f. transmission paths within the fire detection
and alarm system or one wire transmission path and/or r.f. transmission path;
⎯ the allowed maximum number of the components affected by loss of one wire transmission path and/or r.f.
transmission path.
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.
ISO 7240-2, Fire detection and alarm systems — Part 2: Control and indicating equipment
ISO 7240-4, Fire detection and alarm systems — Part 4: Power supply equipment
ISO 7240-5:2003, Fire detection and alarm systems — Part 5: Point-type heat detectors
ISO 7240-11, Fire detection and alarm systems — Part 11: Manual call points
ISO 7240-18, Fire detection and alarm systems — Part 18: Input/output devices
IEC 60068-1, Environmental testing — Part 1: General and guidance
IEC 60068-2-1, Environmental testing — Part 2-1: Tests — Test A: Cold
IEC 60068-2-2, Environmental testing — Part 2-2: Tests — Test B: Dry heat
IEC 60068-2-6, Environmental testing — Part 2-6: Tests — Test Fc: Vibration (sinusoidal)
IEC 60068-2-27, Environmental testing — Part 2-27: Tests — Test Ea and guidance: Shock
IEC 60068-2-30, Environmental testing — Part 2-30: Tests — Test Db: Damp heat, cyclic (12 h + 12 h cycle)
IEC 60068-2-42, Environmental testing — Part 2-42: Tests — Test Kc: Sulphur dioxide test for contacts and
connections
IEC 60068-2-78, Environmental testing — Part 2-78: Tests — Test Cab: Damp heat, steady state
IEC 61620:1998, Insulating liquids — Determination of the dielectric dissipation factor by measurement of the
conductance and capacitance — Test method
IEC 61672-1:2002, Electroacoustics — Sound level meters — Part 1: Specifications
ITU-T O.153, Basic parameters for the measurement of error performance at bit rates below the primary rate
EN 50130-4, Alarm systems — Part 4: Electromagnetic compatibility — Product family standard: Immunity
requirements for components of fire, intruder and social alarm systems
3 Definitions and abbreviations
For the purposes of this document, the terms, definitions and symbols given in ISO 7240-1 and the following
apply.
3.1 Definitions
3.1.1
adjacent channel selectivity
measure of the capability of the receiver to operate satisfactorily in the presence of an unwanted signal that
differs in frequency from the wanted signal by an amount equal to the adjacent channel separation for which
the equipment is intended
3.1.2
antenna
element of a radio component of the fire detection and alarm system that allows coupling between the
component and the media where r.f. waves are propagated
3.1.3
assigned band
frequency band within which the equipment is authorized to operate
3.1.4
autonomous power source
p.s.e. without any link to the public power supply or an equivalent system not rechargeable during operation
and able by itself to power the supplied component
EXAMPLE A primary battery.
3.1.5
base station
tra
...