EN 54-18-2005 pdf download.Fire detection and fire alarm systems – Part 18 : Input / output devices.
3.1.2
conditioning
exposure of a specimen to environmental conditions in order to determine the effect of such conditions on the specimen
3.1.3
recovery
treatment of a specimen, after conditioning, so that the properties of the specimen may be stabilised before measurement
3.2 Abbreviations
For the purposes of this European Standard, the following abbreviations apply:
CIE: Control and indicating equipment.
EMC: Electromagnetic compatibility.
4 Requirements
4.1 Compliance
In order to comply with this European Standard, the input/output devices shall meet the requirements of this clause, which shall be verified by inspection and engineering assessment, shall be tested as described in Clause 5 and shall meet the requirements of the tests. For input/output devices integrated into another device, which is already covered by an existing European Standard, the environmental conditioning shall be performed in accordance with that European Standard, with the addition of the functional tests before, during and/or after conditioning, as required in this European Standard.
In some detector standards/specifications, the dry heat (operational) test is conducted in special test equipment (e.g. in the heat tunnel for heat detectors). The required functional testing of the integrated input/output device before, during and after the dry heat conditioning may be done in this equipment, if this is possible without disrupting the detector measurements. Otherwise, a separate dry heat test, with the same conditioning, shall be conducted. For heat detectors, the test temperature is the maximum application temperature.
4.2 Monitoring of detachable devices
If an input/output device is detachable (i.e. it is attached to a detachable mounting base), then a means shall be provided for a remote monitoring system (e.g. the control and indicating equipment) to detect the removal of the device from the base, in order to give a fault signal.
c) model designation (type or number):
d) wiring terminal designations:
e) some mark(s) or code(s) (e.g. a serial number or batch code), by which the manufacturer can identity, at least, the date or batch and place of manufacture, and the version number(s) of any software, contained within the device.
For detachable devices, the head shall be marked with a), b) and d), and the base shall be marked with at least b) (i.e. its own model designation) and C).
Where any marking on the device uses symbols or abbreviations not in common use then these shall be explained in the data supplied with the device.
The marking shall be visible during installation and shall be accessible during maintenance.
The markings shaLl not be placed on screws or other easily removable parts.
NOTE Where ZA.3 covers the same information as required by ttis subclause. the requirements of this subclause
are met
4.3.2 Data
Input/output devices shall be supplied with sufficient technical, installation and maintenance data to ensure their correct installation and operation. These data shall include the parameters necessary to define the input and/or output functions (e.g. output voltage and current ratings, alarm and fault trip levels, logic levels). If all of these data are not supplied with each device, then reference to the appropnate data sheet(s) shall be given on, or with, each device. To enable correct operation of the input/output device, these data shall describe the requirements for the correct processing of the signals from the device, This can be in the form of a full technical specification of these signals. a reference to the appropriate signalling protocol or a reference to suitable types of control and indicating equipment etc.
4.4 Documentation
The manufacturer shall prepare and provide design documentation (e.g drawings, parts lists, block diagrams, circuit diagrams). Where appropriate, this shall include documentation of the signal processing principle.
4.5 Requirements for software controlled devices
4.5.1 General
For input/output devices which rely on software control in order to fulfil the requirements of this European Standard, the requirements of 4.5.2. 4.5.3 and 4.5.4 shall be met.EN 54-18-2005 pdf download.