ISO 7240-2:2017
(Main)Fire detection and alarm systems — Part 2: Fire detection control and indicating equipment
Fire detection and alarm systems — Part 2: Fire detection control and indicating equipment
ISO 7240-2:2017 specifies requirements, test methods and performance criteria for fire detection control and indicating equipment (FDCIE) for use in fire detection and fire alarm systems installed in buildings. For the testing of other types of FDCIE, this document is intended to be used only for guidance. FDCIE with special characteristics, developed for specific risks, are not covered in ISO 7240-2:2017.
Systèmes de détection et d'alarme d'incendie — Partie 2: Équipement de contrôle et de signalisation
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INTERNATIONAL ISO
STANDARD 7240-2
Second edition
2017-11
Fire detection and alarm systems —
Part 2:
Fire detection control and indicating
equipment
Systèmes de détection et d'alarme d'incendie —
Partie 2: Équipement de contrôle et de signalisation
Reference number
ISO 7240-2:2017(E)
©
ISO 2017
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ISO 7240-2:2017(E)
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ISO 7240-2:2017(E)
Contents Page
Foreword .vi
Introduction .vii
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and abbreviated terms . 1
4 Requirements . 2
4.1 General . 2
4.2 Compliance . 3
4.3 Quiescent condition . 3
4.4 Fire alarm condition . 3
4.4.1 Reception and processing of fire signals . 3
4.4.2 Indication of fire alarm condition . 4
4.4.3 Indication of fire detection zones in alarm . 4
4.4.4 Audible indication . . 4
4.4.5 Other indications during the fire alarm condition . 5
4.4.6 Reset from fire alarm condition . 5
4.4.7 Output of fire alarm condition . 5
4.4.8 Output to fire alarm signalling function — Optional function . 5
4.4.9 Control of fire alarm routing function — Optional function . 6
4.4.10 Output to fire protection control function — Optional function . 6
4.4.11 Delays to outputs — Optional function . 7
4.4.12 Dependency on more than one alarm signal — Optional function . 8
4.4.13 Alarm counter — Optional function . 9
4.4.14 Output of standard emergency evacuation signal — Optional function . 9
4.5 Fault warning condition . 9
4.5.1 Reception and processing of fault signals . 9
4.5.2 Indication of faults. 9
4.5.3 Fault monitoring of fire protection control function — Optional function .11
4.5.4 Fault signals from points — Optional function.11
4.5.5 Total loss of the power supply — Optional function .11
4.5.6 System fault .11
4.5.7 Audible indication . .11
4.5.8 Reset of fault indications.12
4.5.9 Fault output .12
4.5.10 Output to fault warning routing function — Optional function .12
4.6 Disabled condition — Optional function .12
4.6.1 General.12
4.6.2 Disablements . . .13
4.6.3 Disablement and enablement of addressable points — Optional function .13
4.6.4 Indication of the disabled condition .13
4.7 Test condition — Optional function .14
4.7.1 General requirements .14
4.7.2 Indication of test condition .14
4.7.3 Indication of fire detection zones in test state .14
4.8 Supervisory signal condition — Optional function .14
4.8.1 Reception and processing of supervisory signals .14
4.8.2 Indication of the supervisory signal condition .15
4.8.3 Indication of the supervisory signals from fire detection zones .15
4.8.4 Audible indication . .15
4.8.5 Reset of supervisory signal .16
4.8.6 Supervisory signal condition output .16
4.9 Standardized input/output interface — Optional function .16
4.10 Accessibility of indications and controls .17
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ISO 7240-2:2017(E)
4.11 Visual indications.17
4.11.1 General.17
4.11.2 Indications by means of light-emitting indicators .17
4.11.3 Indications on alphanumeric displays .18
4.12 Audible indications.19
4.13 Additional indications.19
4.14 Testing of indicators .19
4.15 Power supply .19
4.16 Mechanical .19
4.17 Integrity of transmission paths .20
4.18 Software .20
4.18.1 General.20
4.18.2 Program monitoring .20
4.18.3 Storage of programs and data .21
4.18.4 Monitoring of memory contents .21
5 Tests .21
5.1 General .21
5.1.1 Standard atmospheric conditions for testing .21
5.1.2 Specimen configuration .22
5.1.3 Mounting and orientation .22
5.1.4 Electrical connection .22
5.1.5 Provision for tests .22
5.2 Functional test .22
5.2.1 Object of test .22
5.2.2 Test schedule .22
5.2.3 Fire alarm condition .23
5.2.4 Fault warning condition .23
5.2.5 Disabled condition .23
5.2.6 Requirements .23
5.3 Environmental tests .23
5.3.1 General.23
5.3.2 Tests for one specimen .24
5.3.3 Tests for two specimens .24
5.3.4 Tests for three specimens .24
5.3.5 Requirements .24
5.4 Cold (operational) .24
5.4.1 Object of test .24
5.4.2 Test procedure .25
5.4.3 Requirements .25
5.5 Damp heat, steady-state (operational).25
5.5.1 Object of test .25
5.5.2 Test procedure .26
5.5.3 Requirements .26
5.6 Impact (operational) — Optional test .26
5.6.1 Object of test .26
5.6.2 Test procedure .27
5.6.3 Requirements .27
5.7 Vibration, sinusoidal (operational) — Optional test .28
5.7.1 Object of test .28
5.7.2 Test procedure .28
5.7.3 Requirements .29
5.8 Electromagnetic compatibility (EMC) — Immunity tests (operational) .29
5.8.1 Test procedure .29
5.8.2 Requirements .30
5.9 Supply voltage variation (operational) .30
5.9.1 Object of test .30
5.9.2 Test procedure .30
5.9.3 Requirements .30
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ISO 7240-2:2017(E)
5.10 Damp heat, steady-state (endurance) .31
5.10.1 Object of test .31
5.10.2 Test procedure .31
5.10.3 Requirements .31
5.11 Vibration, sinusoidal (endurance) .32
5.11.1 Object of test .32
5.11.2 Test procedure .32
5.11.3 Requirements .32
5.12 Dry heat (operational) — Optional .33
5.12.1 Object of test .33
5.12.2 Test procedure .33
5.12.3 Requirements .33
6 Test report .33
7 Marking .34
8 Data .34
8.1 General .34
8.2 Software documentation .34
8.3 Hardware documentation .35
8.4 Installation and user documentation .35
Annex A (informative) Optional functions with requirements and alternatives .37
Annex B (informative) Processing of signals from fire detectors .38
Annex C (informative) Explanation of fire detection zones and zonal indication of fire alarms .39
Annex D (informative) Delays to outputs .40
Annex E (informative) Fault recognition and indication .42
Annex F (informative) Systems related to the supervisory signal condition .43
Annex G (informative) Standardized input/output interface for the connection of ancillary
equipment (e.g. fire brigade panel) .44
Annex H (informative) Explanation of access levels .45
Annex I (informative) Integrity of transmission paths .47
Annex J (informative) Design requirements for software-controlled fire detection control
and indicating equipment .48
Bibliography .49
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ISO 7240-2:2017(E)
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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following
URL: www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 21, Equipment for fire protection and fire
fighting, Subcommittee SC 3, Fire detection and alarm systems.
This second edition cancels and replaces the first edition (ISO 7240-2:2003), which has been technically
revised.
A list of all the parts in the ISO 7240 series can be found on the ISO website.
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ISO 7240-2:2017(E)
Introduction
The fire detection control and indication function (ISO 7240-1:2014, Figure 1, item B), within a fire
detection and alarm system (FDAS) installed in and around buildings, is provided by the fire detection
control and indicating equipment (FDCIE).
FDCIE receives signals from the fire detection function (ISO 7240-1:2014, Figure 1, item A) and the
manual initiating function (ISO 7240-1:2014, Figure 1, item D). FDCIE processes received signals and
may indicate information at the FDCIE and/or send signals to other functions within the fire detection
and alarm system. The signals are used to provide notification to building occupants and other parties
responsible for building safety in accordance with the design objectives for the fire detection and alarm
system (see also ISO 7240-14 or equivalent national design standard).
This document is drafted on the basis of mandatory functions, which are provided on all fire detection
control and indicating equipment, and optional functions (with requirements) which may be provided.
It is intended that the options be used for specific applications, and to meet the fire detection and alarm
system design objectives. Each optional function is included as a separate entity, with its own set of
associated req
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