ISO 7240-28:2014

INTERNATIONAL ISO
STANDARD 7240-28
Second edition
2014-08-15
Fire detection and alarm systems —
Part 28:
Fire protection control equipment
Systèmes de détection et d’alarme d’incendie —
Partie 28: Équipement de commande des systèmes de lutte contre
l’incendie
Reference number
ISO 7240-28:2014(E)
©
ISO 2014

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ISO 7240-28:2014(E)

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ISO 7240-28:2014(E)

Contents Page
Foreword .iv
Introduction .vi
1 Scope . 1
2 Normative references . 2
3 Terms, abbreviated terms, and definitions . 2
3.1 Definitions . 2
3.2 Abbreviated terms . 3
4 Requirements . 3
4.1 General . 3
4.2 Quiescent condition . 3
4.3 Fire protection condition . 4
4.4 Fault warning condition . 6
4.5 Disabled condition — Optional function . 8
4.6 Test condition — Optional function . 9
4.7 Functional condition recorder — Optional function . 9
4.8 Accessibility of indications and controls .10
4.9 Visual indications.10
4.10 Audible indications.11
4.11 Additional indications.12
4.12 Power supply .12
4.13 Mechanical .12
4.14 Integrity of transmission paths .12
4.15 Software .13
4.16 Data .14
5 Tests .15
5.1 General .15
5.2 Functional test .16
5.3 Environmental tests .17
5.4 Cold (operational) .18
5.5 Damp heat, steady-state (operational).19
5.6 Impact (operational) .20
5.7 Vibration, sinusoidal (operational) .21
5.8 Electromagnetic compatibility (EMC), immunity tests (operational) .22
5.9 Supply voltage variation (operational) .23
5.10 Damp heat, steady-state (endurance) .24
5.11 Vibration, sinusoidal (endurance) .24
6 Test report .25
7 Marking .25
Annex A (informative) Explanation of access levels .27
Annex B (informative) Design requirements for software-controlled fire protection
control equipment .29
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ISO 7240-28:2014(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 meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is 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 7240-28:2008), which has been technically
revised.
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
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ISO 7240-28:2014(E)

— Part 14: Design, installation, commissioning and service of fire detection and fire alarm systems in and
around buildings
— 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 23: Visual alarm devices
— 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
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ISO 7240-28:2014(E)

Introduction
This part of the ISO 7240 has been prepared by ISO/TC 21, Subcommittee SC 3, the secretariat of which
is held by SA and is based on ISO 7240-28:2008.
Fire protection control equipment (FPCE) (ISO 7240-1:2014, Figure 1, item G) receives signals from
control and indicating equipment (ISO 7240-1:2014, Figure 1, item B) and sends initiating signals to
automatic fire protection equipment (AFPE) (ISO 7240-1:2014, Figure 1, item H). The initiating signals
are used to operate AFPE, such as pumps associated with fire suppression systems, control doors,
dampers, fans, and other equipment.
This part of ISO 7240 describes the mandatory functions that it is required on all FPCE covered by this
part of ISO 7240, and optional functions with their associated requirements. It is intended that the options
be used for specific applications, as recommended in application guidelines. Each optional function is
included as a separate entity, with its own set of associated requirements, in order to permit the FPCE
covered by this part of ISO 7240, with different combinations of functions, to conform to the specified
requirements. It is necessary that FPCE complying with this part of ISO 7240 fulfil the requirements
of all of the mandatory functions, together with the requirements of those optional functions that are
provided.
Other functions associated with the fire detection and alarm system can also be provided, even if not
specified in this part of ISO 7240.
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INTERNATIONAL STANDARD ISO 7240-28:2014(E)
Fire detection and alarm systems —
Part 28:
Fire protection control equipment
1 Scope
This part of ISO 7240 specifies requirements, methods of test, and performance criteria for fire
protection control equipment (FPCE) (ISO 7240-1:2014, Figure 1, item G) connected to automatic fire
protection equipment (AFPE) (ISO 7240-1:2014, Figure 1, item H) installed in buildings.
The FPCE receives signals from fire detection control and indicating equipment (ISO 7240-1:2014,
Figure 1, item B), sends control signals to, and indicates the condition of, the AFPE (see Figure 1). The
control signals are used to initiate automatic fire protection equipment, such as pumps associated with
fire suppression systems, control doors, dampers, fans, and the like.

G
H
G
CC
1
Pump
start
CC
Pump Smoke Fire
start control doors
Smoke
1
control
CC
Fire
1
doors
CC
a) FPCE with discrete transmission paths b) FPCE with serial transmission path
Key
G fire protection control equipment
H automatic fire protection equipment
1 automatic control
indicator
manual control
Figure 1 — Typical fire protection control equipment configuration
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ISO 7240-28:2014(E)

2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 7240-1:2014, Fire detection and alarm systems — Part 1: General and definitions
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 7240-13, Fire detection and alarm systems — Part 13: Compatibility assessment of system components
IEC 60068-1, Environmental testing — Part 1: General and guidance
IEC 60068-2-1, Environmental testing — Part 2-1: Tests — Tests A: Cold
IEC 60068-2-6, Environmental testing — Part 2-6: Tests — Test Fc: Vibration (sinusoidal)
IEC 60068-2-47, Environmental testing — Part 2-47: Tests — Mounting of specimens for vibration, impact
and similar dynamic tests
IEC 60068-2-75, Environmental testing — Part 2-75: Tests — Test Eh: Hammer tests
IEC 60068-2-78, Environmental testing — Part 2-78: Tests — Test Cab: Damp heat, steady state
IEC 60529, Degrees of protection provided by enclosures (IP Code)
IEC 60721-3-3, Classification of environmental conditions — Part 3-3: Classification of groups of
environmental parameters and their severities — Stationary use at weatherprotected locations
EN 50130-4, Alarm systems — Part 4: Electromagnetic compatibility — Product family standard: Immunity
requirements for components of fire, intruder, hold up, CCTV, access control and social alarm systems
3 Terms, abbreviated terms, and definitions
3.1 Definitions
For the purposes of this document, the terms and definitions given in ISO 7240-1 and the following apply.
3.1.1
functional condition
condition of the FPCE characterized by its indication at the FPCE
Note 1 to entry: The functional conditions recognized in this part of ISO 7240 are the following:

     —  quiescent condition, specified in 4.2;

     —  fire protection condition, specified 4.3;

     —  fault warning condition, specified in 4.4;

     —  disabled condition, specified in 4.5;

     —  test condition, specified 4.6.
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ISO 7240-28:2014(E)

3.2 Abbreviated terms
AFPE automatic fire protection equipment
FPCE fire protection control equipment
4 Requirements
4.1 General
4.1.1 The FPCE shall be capable of unambiguously controlling and indicating the following functional
conditions, as described in 4.2 to 4.6:
— quiescent condition;
— fire protection condition;
— fault warning condition;
— disabled condition;
— test condition.
4.1.2 The FPCE shall be capable of functioning simultaneously in any combination of the following
functional conditions:
— fire protection condition;
— fault warning condition;
— disabled condition;
— test condition.
4.1.3 If functions other than those specified in this part of ISO 7240 are provided, they shall not
jeopardize compliance with any requirements of this part of ISO 7240.
4.1.4 If an optional function is included in the FPCE, then all the corresponding requirements shall be
met.
4.1.5 Functions required in this part of ISO 7240 can be performed within fire detection control and
indicating equipment complying with ISO 7240-2.
4.2 Quiescent condition
The FPCE shall be in the quiescent condition when the FPCE is powered, and no other functional condition
is indicated. Any kind of system information can be displayed during the quiescent condition. However,
no indications shall be given that can be confused with the
— fire protection condition,
— fault warning condition,
— disabled condition, or
— test condition.
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ISO 7240-28:2014(E)

4.3 Fire protection condition
4.3.1 Reception and processing of fire protection condition signals
4.3.1.1 The FPCE shall receive fire alarm condition signals from fire detection control and indicating
equipment (ISO 7240-1:2014, Figure 1, item B), and within 3 s, send signals as configured to initiate
AFPE.
4.3.1.2 Fire alarm condition signals shall be latched by the FPCE until reset.
4.3.1.3 FPCE output signals shall be activated as part of the fire protection condition.
4.3.1.4 FPCE output signals shall be configurable at access level 3. The configuration, at least, shall be
dependent upon the fire alarm condition signals received from the fire detection control and indicating
equipment, and shall allow for adaptations that can be required as part of the design of the fire detection
and alarm system installed in or around the building.
4.3.1.5 The mandatory indications and/or outputs shall not be falsified by multiple fire signals
received from the same or different fire detection control and indicating equipment, resulting from
the simultaneous operation of two sets of fire detection control and indicating equipment, and/or the
operation of additional sets of fire detection control and indicating equipment.
4.3.2 Indication of the fire protection condition
4.3.2.1 Indication of the fire protection condition is established when the following are present:
a) a visible indication, by means of a separate light-emitting indicator (the general fire protection
condition indicator);
b) a visible indication of the FPCE output activation, as specified in 4.3.3, which can be omitted for
FPCE and capable of sending signals to only one AFPE;
c) an audible indication, as specified in 4.10.
4.3.2.2 The time taken for processing signals within the FPCE shall not delay the indication of the fire
protection condition at the FPCE by more than 3 s.
4.3.2.3 The display of the fire protection condition shall take priority over the display of other conditions.
4.3.3 Automatic fire protection equipment
4.3.3.1 Activation by fire protection control equipment
4.3.3.1.1 Activation of the FPCE output shall be indicated by means of a separate light-emitting indicator,
or a field of an alphanumeric display, or both, for each FPCE output.
4.3.3.1.2 Where an alphanumeric display is used and separate light-emitting indicators for each FPCE
output are not provided, a separate light-emitting indicator (the general output indicator) is also required.
4.3.3.1.3 The output indicators shall be separate and distinct from the fire protection condition
indicator.
4.3.3.1.4 If the indications are on an alphanumeric display that, because of its limited capacity, cannot
simultaneously indicate all activated equipment, at least the following shall apply:
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ISO 7240-28:2014(E)

a) The total number of FPCE outputs activated shall be displayed until the FPCE has been reset.
b) Activated FPCE outputs not currently indicated shall be capable of being displayed at access level 1
or 2. A single, manual action shall be required for each display of output information. When the last
activated output is displayed, activation of the manual control shall cause the first output in the list
to be re-displayed.
c) The indication shall not be suppressed by indications of other functional conditions.
4.3.3.1.5 The FPCE output indicator shall flash when the FPCE output is activated and go steady when
the FPCE receives acknowledgement from the AFPE.
NOTE 1 The criteria used for the acknowledgement signal are dependent on the AFPE. For example, an
acknowledgement signal for a smoke exhaust fan might not be sent from the exhaust fan control equipment until
the fan has correctly started.
NOTE 2 Some activated equipment (e.g. valves for a gas cylinder) might not be capable of sending an
acknowledgement signal. In this example, the output indicator remains flashing, indicating to the operator that
the status of the AFPE remains unclear.
4.3.3.2 Activation by means other than by the fire protection control equipment
4.3.3.2.1 Activation of the AFPE by means other than the FPCE (e.g. a suppression system directly
activated by heat) shall be indicated by separate light-emitting indicators, or an alphanumeric display, or
both, for each FPCE output. The indicators can be the same as those used in 4.3.3.1.
4.3.3.2.2 When the AFPE is activated by means other than by the FPCE, the FPCE output visual indicator
shall go steady and the audible indication, as specified in 4.10, shall activate.
NOTE If the AFPE is activated by means other than the FPCE, the activation is not considered as a fire
protection condition; therefore, the reset function of 4.3.4.4 does not apply.
4.3.3.2.3 The audible indication shall not be silenced automatically.
4.3.3.2.4 If previously silenced, the audible indication shall re-sound for each new FPCE output
activation.
4.3.4 Manual controls
4.3.4.1 General
4.3.4.1.1 Manual controls shall be available at access level 2 to activate and deactivate the outputs of
the FPCE.
4.3.4.1.2 The time taken for processing manual control signals within the FPCE shall not delay the
output activation at the FPCE by more than 3 s. Where more than one output is activated by a single
manual control, the activation of each subsequent output can be delayed by not more than 3 s per output.
4.3.4.1.3 When operated, a manual control shall suspend the programmed operation of the associated
FPCE output. When the manual control is no longer in use, the programmed operation of the FPCE output
shall resume from the point of suspension.
NOTE The resumption of programmed operation might need to include a re-examination of any active FPCE
input signals.
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ISO 7240-28:2014(E)

4.3.4.2 Indication of the activation of a manual control
4.3.4.2.1 Activation of the manual control shall be indicated by means of a separate light-emitting
indicator, or an alphanumeric display, or both, for each FPCE output. The indicator shall be cancelled
when the manual control is deactivated.
4.3.4.2.2 The activation of the manual control shall be indicated within 2 s of the completion of the
manual operation.
4.3.4.3 Other indications
If fault warning conditions, disabled conditions, or test conditions are indicated by means of separate
light-emitting indicators, and such indications are suppressed in the manual control condition, it shall
be possible to reveal these by means of a manual operation at access level 1 or access level 2.
4.3.4.4 Reset
4.3.4.4.1 A manual control shall be provided to reset the FPCE from the fire protection condition at
access level 2.
4.3.4.4.2 Indications of the fire protection condition shall be reset manually (see 4.3.4.4.1) and can
be reset automatically when the fire alarm condition is reset at the fire detection control and indicating
equipment.
4.3.4.4.3 Following a reset, the indication of the correct functional conditions corresponding to any
received signals shall either remain or be re-established within 20 s.
4.4 Fault warning condition
4.4.1 Reception and processing of fault warning signals
4.4.1.1 The FPCE shall enter the fault warning condition when signals are received that, after necessary
processing, are interpreted as fault.
4.4.1.2 The FPCE shall be capable of simultaneously recognizing all of the faults specified in 4.4.3.1 and
4.4.3.4, unless this is prevented by
— the presence of a fire protection condition from the same input, and/or
— the disablement of the corresponding input or output, and/or
— the testing of a corresponding input or output.
4.4.1.3 Faults specified in 4.4.3.1 and 4.4.3.4 shall be indicated without prior manual intervention,
unless the FPCE is in the fire protection condition, in which case, the fault indications can be suppressed.
4.4.2 Indication of the fault warning condition
4.4.2.1 The fault warning condition is established when all of the following are present:
a) a visible indication by means of a separate light-emitting indicator (the general fault warning
indicator);
b) a visible indication for each fault, specified in 4.4.3.1;
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ISO 7240-28:2014(E)

c) an audible indication, as specified in 4.10.
4.4.2.2 Faults shall be indicated within 100 s of the occurrence of the fault or as specified in 4.15.6.
4.4.3 Indication of specific faults
4.4.3.1 The following faults shall be indicated by means of a separate light-emitting indicator, or an
alphanumeric display, or both, and can be suppressed during the fire protection condition.
a) an indication when the transmission of signals from fire detection control and indicating equipment
is affected by
— a short circuit in the input transmission path,
— an interruption in the input transmission path;
b) an indication when the transmission of signals to AFPE is affected by
— a short circuit in the output transmission path,
— an interruption in the output transmission path,
— the removal of an output transmission path,
— the disconnection of the AFPE from an output transmission path;
c) an indication, at least common to any power-supply fault resulting from a short circuit or an
interruption in a transmission path from a power supply (ISO 7240-1:2014, Figure 1, item L), where
the power supply is contained in a cabinet different from that of the FPCE (indication can be satisfied
by the absence of other indicators displayed in the quiescent condition);
d) an indication at least common to any single earth fault that affects a mandatory function, and that
is not otherwise indicated as a fault of a supervised function;
e) an indication as a fau
...