ETSI EN 300 065 V2.1.2 (2016-06)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.DQMHNarrow-band direct-printing telegraph equipment for receiving meteorological or navigational information (NAVTEX) - Harmonised Standard covering the essential requirements of articles 3.2 and 3.3(g) of the Directive 2014/53/EU47.020.70Navigacijska in krmilna opremaNavigation and control equipment33.060.20Sprejemna in oddajna opremaReceiving and transmitting equipmentICS:Ta slovenski standard je istoveten z:ETSI EN 300 065 V2.1.2 (2016-06)SIST EN 300 065 V2.1.2:2016en01-september-2016SIST EN 300 065 V2.1.2:2016SLOVENSKI
STANDARD
HARMONISED EUROPEAN STANDARD SIST EN 300 065 V2.1.2:2016

ETSI ETSI EN 300 065 V2.1.2 (2016-06) 2
Reference REN/ERM-TG26-530 Keywords harmonised standard, maritime, NAVTEX, radio ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE
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© European Telecommunications Standards Institute 2016. All rights reserved.
DECTTM, PLUGTESTSTM, UMTSTM and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM and LTE™ are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association. SIST EN 300 065 V2.1.2:2016

ETSI ETSI EN 300 065 V2.1.2 (2016-06) 3 Contents Intellectual Property Rights . 6 Foreword . 6 Modal verbs terminology . 6 1 Scope . 7 2 References . 7 2.1 Normative references . 7 2.2 Informative references . 7 3 Definitions and abbreviations . 8 3.1 Definitions . 8 3.2 Abbreviations . 8 4 General and operational requirements . 8 4.0 General . 8 4.1 Construction . 8 4.2 Receivers . 9 4.3 Handling of messages . 9 4.4 Alarms . 10 4.5 Safety precautions . 11 5 Test conditions, power supply and ambient temperatures . 11 5.0 Environmental profile . 11 5.1 General . 11 5.1.0 Conditions . 11 5.1.1 Artificial antennas . 12 5.1.2 Normal test signal . 12 5.1.3 Test signals applied to the receiver input . 12 5.2 Test power source . 12 5.3 Normal test conditions . 12 5.3.1 Normal temperature and humidity . 12 5.3.2 Normal test power supply . 13 5.3.2.1 Mains voltage and frequency . 13 5.3.2.2 Power source from a battery. 13 5.3.2.3 Other power sources . 13 5.4 Extreme test conditions . 13 5.4.1 Extreme temperatures . 13 5.4.2 Extreme test power supply values . 13 5.4.2.1 Extreme mains voltage and frequency . 13 5.4.2.2 Power source from a battery. 13 5.4.2.3 Other power sources . 13 5.5 Procedures for tests at extreme temperatures . 13 5.6 Environmental tests . 14 5.6.0 General . 14 5.6.1 Vibration test . 14 5.6.1.1 Method of measurement . 14 5.6.1.2 Requirement . 14 5.6.2 Temperature tests . 14 5.6.2.1 Dry heat for externally mounted equipment (if declared by manufacturer) . 14 5.6.2.1.1 Method of measurement . 14 5.6.2.1.2 Requirement . 15 5.6.2.2 Damp heat cycle . 15 5.6.2.2.1 Method of measurement . 15 5.6.2.2.2 Requirement . 15 5.6.2.3 Low temperature cycle for externally mounted equipment (if declared by manufacturer) . 15 5.6.2.3.1 Method of measurement . 15 5.6.3 Corrosion test . 16 5.6.3.1 General . 16 SIST EN 300 065 V2.1.2:2016

ETSI ETSI EN 300 065 V2.1.2 (2016-06) 4 5.6.3.2 Method of measurement . 16 5.6.3.3 Requirements . 16 5.6.4 Rain test (if declared by manufacturer). 17 5.6.4.1 General . 17 5.6.4.2 Method of measurement . 17 5.6.4.3 Requirements . 17 6 Receiver and signal processor . 17 6.1 Call sensitivity . 17 6.1.1 Definition . 17 6.1.2 Method of measurement . 17 6.1.3 Limit . 18 6.2 Interference rejection and blocking immunity . 18 6.2.1 Definition . 18 6.2.2 Method of measurement . 18 6.2.3 Limit . 18 6.3 Co-channel rejection. 18 6.3.1 Definition . 18 6.3.2 Method of measurement . 18 6.3.3 Limit . 19 6.4 Intermodulation . 19 6.4.1 Definition . 19 6.4.2 Method of measurement . 19 6.4.3 Limit . 19 6.5 Spurious emissions . 19 6.5.1 Definition . 19 6.5.2 Method of measurement . 19 6.5.3 Limit . 20 6.6 Protection of input circuits . 20 6.7 Simultaneous reception . 20 6.7.1 Definition . 20 6.7.2 Method of measurement . 20 6.7.3 Limit . 20 6.8 Message processing . 20 6.8.1 B1 tests . 20 6.8.2 B2 tests . 21 6.8.3 Receiver test facility . 21 6.8.4 SAR message alarm test . 21 6.8.5 Additional alarm test . 21 6.9 Integrated printer tests . 21 6.9.1 Out of paper alarm and storage inhibition . 21 6.9.2 Automatic line and paper feed . 21 6.9.3 Corrupted characters . 22 6.9.4 Corrupted characters in the preamble . 22 6.9.5 Messages with B3,B4 = 00 . 22 6.10 Memory storage tests. 22 6.10.1 Storage, tagging and erasure . 22 6.10.2 Erasure of messages by timeout . 22 6.10.3 Storage of message identifications . 23 7 Integrated printing device . 23 7.1 General . 23 7.2 Printing . 23 8 Dedicated display device . 24 8.1 General . 24 8.2 Display characteristics . 24 9 Interfaces . 24 9.1 Printer . 24 9.2 Data . 24 10 Message memory . 25 10.1 General requirements . 25 SIST EN 300 065 V2.1.2:2016

ETSI ETSI EN 300 065 V2.1.2 (2016-06) 5 10.2 Equipment without an integrated printing device . 25 10.3 Equipment with an integrated printing device . 25 11 Testing for compliance with technical requirements . 25 11.1 Test conditions, power supply and ambient temperatures . 25 11.2 Interpretation of the measurement results . 25 Annex A (normative): Relationship between the present document and the essential requirements of Directive 2014/53/EU . 27 History . 29
ETSI ETSI EN 300 065 V2.1.2 (2016-06) 6 Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (https://ipr.etsi.org/). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This Harmonised European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic compatibility and Radio spectrum Matters (ERM). The present document has been prepared under the Commission's standardisation request C(2015) 5376 final [i.7] to provide one voluntary means of conforming to the essential requirements of Directive 2014/53/EU on the harmonisation of the laws of the Member States relating to the making available on the market of radio equipment and repealing Directive 1999/5/EC [i.4]. Once the present document is cited in the Official Journal of the European Union under that Directive, compliance with the normative clauses of the present document given in tables A.1 and A.2 confers, within the limits of the scope of the present document, a presumption of conformity with the corresponding essential requirements of that Directive, and associated EFTA regulations. Technical specifications relevant to Directive 2014/53/EU [i.4] are given in annex A.
National transposition dates Date of latest announcement of this EN (doa): 30 September 2016 Date of latest publication of new National Standard or endorsement of this EN (dop/e):
31 March 2017 Date of withdrawal of any conflicting National Standard (dow): 31 March 2018
Modal verbs terminology In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and "cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of provisions). "must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation. SIST EN 300 065 V2.1.2:2016

ETSI ETSI EN 300 065 V2.1.2 (2016-06) 7 1 Scope The present document states the minimum requirements for a Narrow-Band Direct-Printing (NBDP) maritime receiver operating in the NAVTEX system. The equipment's function is to receive, display and/or print automatically and continuously, meteorological and navigational messages and Search And Rescue (SAR) messages transmitted by coast stations participating in the NAVTEX system. The present document also specifies technical characteristics, methods of measurement and required test results. The present document contains requirements to demonstrate that ". Radio equipment shall be so constructed that it both effectively uses and supports the efficient use of radio spectrum in order to avoid harmful interference" [i.4] and that ".radio equipment supports certain features ensuring access to emergency services" [i.4]. In addition to the present document, other ENs that specify technical requirements in respect of essential requirements under other parts of article 3 of the Radio Equipment Directive [i.4] may apply to equipment within the scope of the present document. 2 References 2.1 Normative references References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the reference document (including any amendments) applies. Referenced documents which are not found to be publicly available in the expected location might be found at http://docbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee their long term validity. The following referenced documents are necessary for the application of the present document. [1] Recommendation ITU-R M.625-4 (03-2012): "Direct-printing telegraph equipment employing automatic identification in the maritime mobile service". [2] Recommendation ITU-R M.540-2 (06-1990): "Operational and technical characteristics for an automated direct-printing telegraph system for promulgation of navigational and meteorological warnings and urgent information to ships". 2.2 Informative references References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the reference document (including any amendments) applies. NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee their long term validity. The following referenced documents are not necessary for the application of the present document but they assist the user with regard to a particular subject area. [i.1] Recommendation ITU-R M.541-9: "Operational procedures for the use of digital selective-calling equipment in the maritime mobile service". [i.2] IEC 60529 (2001-02) Ed. 2.1 Bilingual Consolidated Edition: "Degrees of protection provided by enclosures (IP Code)". SIST EN 300 065 V2.1.2:2016

ETSI ETSI EN 300 065 V2.1.2 (2016-06) 8 [i.3] IEC 61162-1 (2008): "Maritime navigation and radiocommunication equipment and systems - Digital interfaces - Part 1: Single talker and multiple listeners". [i.4] Directive 2014/53/EU of the European Parliament and of the Council of 16 April 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of radio equipment and repealing Directive 1999/5/EC. [i.5] ETSI TR 100 028 (all parts): "Electromagnetic compatibility and Radio spectrum Matters (ERM); Uncertainties in the measurement of mobile radio equipment characteristics". [i.6] ETSI TR 100 028-2: "Electromagnetic compatibility and Radio spectrum Matters (ERM); Uncertainties in the measurement of mobile radio equipment characteristics; Part 2". [i.7] Commission Implementing Decision C(2015) 5376 final of 4.8.2015 on a standardisation request to the European Committee for Electrotechnical Standardisation and to the European Telecommunications Standards Institute as regards radio equipment in support of Directive 2014/53/EU of the European Parliament and of the Council. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: dBA: "A" weighted dB noise level measured at a distance of 1 metre 3.2 Abbreviations For the purposes of the present document, the following abbreviations apply: ACK ACKnowledgement ALR Alarm emf electro-motive force EUT Equipment Under Test INS Integrated Navigation System MSGS Messages NAVTEX NAVigational TelEX NBDP Narrow-Band Direct-Printing r.m.s. root mean square RF Radio Frequency SAR Search And Rescue STS Standard Test Signal 4 General and operational requirements 4.0 General The manufacturer shall declare that compliance to the requirements of clause 4 is achieved and shall provide relevant documentation. 4.1 Construction 4.1.1 The mechanical and electrical design and the construction and finish of the equipment shall accord with good engineering practice and the equipment shall be designed for use on board ships at sea. SIST EN 300 065 V2.1.2:2016

ETSI ETSI EN 300 065 V2.1.2 (2016-06) 9 4.1.2 All controls, instruments and terminals shall be clearly identified. Details concerning the power source with which the equipment is to be used shall be clearly indicated. A label indicating the type designation shall be affixed to the equipment in a place where it is clearly visible in the normal operating position. 4.1.3 It shall be possible to reduce to zero the intensity of any equipment light source other than visual alarms. 4.1.4 The equipment shall have either: - an integrated printing device; or - a dedicated display device, an industry standard printer output port and non-volatile message memory; or - an interface to an Integrated Navigation System (INS) and a non-volatile memory. 4.1.5 The equipment shall consist of a radio-frequency receiver incorporating a signal processor and a printing and/or displaying device. 4.1.6 The message format shall conform to Recommendation ITU-R M.625-4 [1], collective B-mode. The system shall conform to Recommendation ITU-R M.540-2 [2].
The equipment shall be provided with installation documentation including notably the required information for antennae siting.
Documentation shall also be available detailing servicing and fault finding of the equipment. Where practicable this should detail all required information for repair down to component level. 4.2 Receivers 4.2.1 The primary radio-frequency receiver shall operate on a frequency of 518 kHz.
4.2.2 At least one additional radio frequency receiver shall be provided and operation shall be selectable both manually and via the INS interface to either 490 kHz or 4 209,5 kHz. Such additional receivers shall be capable of simultaneous operation with the primary receiver. 4.2.3 The equipment shall comprise a device for performing tests to verify whether the radio-frequency receiver, signal processor or printing device are working correctly. The test shall at least provide verification of the signal's path from the antenna to the loudspeaker or to an audio-frequency output delivering sufficient power to operate a loudspeaker or earphones. A self-return switch shall be used if a loudspeaker is used. 4.3 Handling of messages 4.3.1 To limit the number of messages printed or displayed, it shall be possible to select the appropriate B1 character for those messages that are wanted.
4.3.2 The equipment shall display information indicating that the B1 characters have been selected or excluded, or this information shall be easily accessible via the user interface.
4.3.3 It shall be possible to inhibit the printing or displaying of message categories (defined by the B2 characters), transmitted by the coast stations selected, other than navigational warnings, gale warnings and SAR messages. It shall be possible to exclude at least four different message categories. 4.3.4 The equipment shall provide a clear indication of the message categories that are excluded. 4.3.5 Means shall be provided to avoid the outputting of messages which are not correctly received or which have already been correctly received. 4.3.5.1 A message is considered to have been correctly received if the character error rate is less than
4 × 10-2. The message identification of each such message shall be stored in memory until erased. SIST EN 300 065 V2.1.2:2016

ETSI ETSI EN 300 065 V2.1.2 (2016-06) 10 4.3.5.2 When the received character error rate exceeds 33 × 10-2 for more than 5 seconds, the printing or displaying of the message shall be inhibited, the message shall be considered as not correctly received, and the message identification shall not be stored in memory. 4.3.5.3 The equipment shall not print or display any message (except as defined in the following paragraph), the identification of which is already stored in memory. 4.3.6 A message shall always be printed or displayed if B3B4 = 00. 4.3.7 The equipment may be provided with facilities to store complete messages without being printed or displayed directly, with the exception of messages with the message identity B3B4 = 00 and/or B2 = A, B, D or L, which shall always be printed or displayed upon receipt. Where such storage facilities are provided, it shall be possible at least to print or display, on request, stored messages in the sequential order: last stored - first output. 4.3.8 If the number of message identifications received exceeds the memory capacity, the oldest message identification shall be erased. 4.3.9 However, after a period of 60 hours to 72 hours, a message identification shall automatically be erased from the memory. 4.3.10 The equipment shall output an asterisk for each corrupted character detected. 4.3.11 The equipment may be provided with additional facilities to output messages in a second language using an alphabet different from the Latin alphabet. 4.3.12 If an automatic line feed causes a word to be divided then this shall be indicated in the text. The printer or printer output shall automatically insert line feeds after completion of message printing. 4.3.13 The equipment may optionally use an externally provided source of UTC or an internal RTC to provide timing data for message handling. 4.4 Alarms 4.4.1 An alarm indicating the reception of SAR messages shall be provided, whether incorporated in the equipment or remote from it. The remote alarm interface shall be a normally open pair of contacts, neither of which shall be grounded. This alarm shall only be able to be stopped (acknowledged) manually but without inhibiting receipt of further other alarms. The audible level of the alarm shall be between 75 dB(A) and 85 dB(A). 4.4.2 If an additional alarm is used to indicate the reception of navigational and gale warnings, it shall be capable of being suppressed. 4.4.3 The alarm status shall be communicated using the ALR sentence via the INS interface. The ALR sentences shall include the local alarm number and descriptive text as given in table 1. Table 1: Alarm definitions Alarm number Alarm Text 001 NAVTEX : Navigational Warning 002 NAVTEX : Meteorological Warning 003 NAVTEX : Search and Rescue information 004 NAVTEX : Receiver malfunction 005 NAVTEX : Built in self test failure 006 NAVTEX : General failure
While any alarm is active (even acknowledged alarms) the equipment shall send the corresponding ALR sentences once every 30 seconds via the data interface. When no alarms are active, the equipment shall send an ALR sentence with the status set to "V" every 60 seconds. SIST EN 300 065 V2.1.2:2016

ETSI ETSI EN 300 065 V2.1.2 (2016-06) 11 4.4.4 If an additional alarm is used to indicate the reception of navigational and gale warnings, it shall be capable of being suppressed. 4.4.5 Where an integrated printer is used, an alarm shall be provided to indicate that the paper has nearly run out or has run out. If any message is incompletely printed because the paper has run out, the message identification for that message shall not be stored in the memory. Memory storage of new message identifications shall be inhibited if there is no paper available in the printing device. It shall be possible to print continuously 200 000 characters. 4.4.6 There shall be an audible or visual alert if a malfunction or general failure occurs with either the dedicated display, printer or non-volatile memory. 4.5 Safety precautions 4.5.1 Measures shall be taken to protect the equipment against the effects of excessive current or voltage and against an excessive temperature increase in any part of the equipment as a result of any defect in the cooling system. 4.5.2 Measures shall be taken to protect the equipment from damage as a result of transient changes of voltage or an accidental reversal of polarity at the power source. 4.5.3 Means shall be provided for earthing the equipment's metal parts which are accessible from the outside, but the equipment shall not cause any terminal of the electrical power source to be earthed. 4.5.4 All parts and all wiring in which the dc or ac voltage (except radio-frequency voltage) produce, singly or in combination, a peak voltage in excess of 50 volts, shall be protected against accidental access and shall automatically be isolated from all electrical power sources when the protective covers are removed. 4.5.5 Alternatively, the equipment shall be constructed in such a way as to prevent access to such voltages unless an appropriate tool is used such as a nut-spanner or screwdriver, and conspicuous warning labels shall be affixed both inside the equipment and on the protective covers. 4.5.6 The information in memories, programmed by the user, (see clause 4.3), shall not be erased by power source interruptions of less than 6 hours. 5 Test conditions, power supply and ambient temperatures 5.0 Environmental profile The environmental profile for operation of the equipment shall be declared by the supplier. The equipment shall comply with all the technical requirements of the present document at all times when operating within the boundary limits of the required operational environmental profile. 5.1 General 5.1.0 Conditions Tests shall be made under normal test conditions and also, where stated, under extreme test conditions. Where such conditions are applicable, the equipment shall meet the requirements of the present document for any combination of voltages and temperatures within the extremes specified. SIST EN 300 065 V2.1.2:2016

ETSI ETSI EN 300 065 V2.1.2 (2016-06) 12 5.1.1 Artificial antennas Where specified, the tests shall be carried out with the receiver connected, as appropriate, to the following artificial antennas, although this shall not in any way imply that the receiver shall only operate satisfactorily with antennas possessing these impedance characteristics: a) a non-reactive resistance of 50 Ω; b) a resistance of 10 Ω in series with a capacitance of 150 pF. 5.1.2 Normal test signal The normal test signal shall be an F1B radio-frequency signal modulated with a frequency shift of ±85 Hz centred on 518 kHz, 490 kHz or 4 209,5 kHz. It shall contain signals providing the following traffic information: 1 2 3 4 5 6 7 8 9 0 A B C D E F G H I J K L M N O P Q R S T U - Carriage return - Line feed. For tests with the normal test signal, the above information shall be transmitted at least 35 times continuously. Where other receive frequencies are provided in addition to the international NAVTEX frequency of 518 kHz, the test signal described above shall be duplicated but centred on each of the additional frequencies in turn. 5.1.3 Test signals applied to the receiver input Sources of test signals to be applied to the equipment input shall be connected via a network such that the impedance presented to the equipment is equal to the impedance of the artificial antenna (see clause 5.1.1), whether one or more test signals are applied to the equipment simultaneously. If there are two or more test signals, measures shall be taken to prevent any undesirable effects resulting from interactions between the signals in the generators or other sources. The levels of the test signals at the receiver input shall be expressed in terms of the electro-motive force (emf) at the output terminals of the source including the associated network. 5.2 Test power source During tests, the equipment's power supply shall be provided by a test power source capable of producing normal and extreme voltages as specified in clauses 5.3.2 and 5.4. The internal impedance of the test power source shall be low enough to have only a negligible effect on the test results. For the purpose of the tests, the power source voltage shall be measured at the input terminals of the equipment. During the tests, the power source voltage shall be maintained within a tolerance of ±3 % relative to its level at the beginning of each test. 5.3 Normal test conditions 5.3.1 Normal temperature and humidity The normal temperature and humidity conditions for tests shall be any convenient combination of temperature and humidity within the following ranges: - temperature: +15 °C to +35 °C; - relative humidity: 20 % to 75 %. SIST EN 300 065 V2.1.2:2016

ETSI ETSI EN 300 065 V2.1.2 (2016-06) 13 5.3.2 Normal test power supply 5.3.2.1 Mains voltage and frequency The normal test voltage for equipment to be connected to the mains shall be the nominal mains voltage. For the purpose of the present document, the nominal voltage shall be the declared voltage or any of the declared voltages for which the equipment is indicated as having been designed for. The frequency of the test power source, corresponding to the mains, shall be 50 Hz ± 1 Hz. 5.3.2.2 Power source from a battery Where the equipment is designed to operate from a battery, the normal test voltage shall be the nominal voltage of the battery (12 volts, 24 volts, etc.). 5.3.2.3 Other power sources For operation from other power sources, the normal test voltage shall be fixed by agreement between the equipment manufacturer and the authority conducting the tests. 5.4 Extreme test conditions 5.4.1 Extreme temperatures For tests at extreme temperatures, measurements shall be made in accordance with the procedures specified in clause 5.5 at the lower and upper temperatures of 0 °C and 40 °C. 5.4.2 Extreme test power supply values 5.4.2.1 Extreme mains voltage and frequency The extreme test voltages for equipment to be connected to the mains shall be the nominal mains voltage ±10 %. The frequency of the test power source corresponding to the mains shall be 50 Hz ± 1 Hz. 5.4.2.2 Power source from a battery Where the equipment is designed to operate from a battery, the extreme test voltages shall be 1,3 and 0,9 multiplied by the nominal voltage of the battery (12 volts, 24 volts, etc.). 5.4.2.3 Other power sources For equipment using other test power sources, the extreme voltages shall be fixed by agreement between the manufacturer and the authority conducting the tests. 5.5 Procedures for tests at extreme temperatures Before measurements are made, the equipment shall have reached thermal equilibrium in the test chamber. The equipment shall be switched off during the temperature stabilizing period. The sequence of measurements shall be chosen and the humidity in the test chamber shall be controlled so that excessive condensation does not occur. SIST EN 300 065 V2.1.2:2016

ETSI ETSI EN 300 065 V2.1.2 (2016-06) 14 5.6 Environmental tests 5.6.0 General Before starting the environmental tests, the equipment shall be tested under the other
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