ETSI ETS 300 441, Инструкция по эксплуатации

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ETS 300 441: February 1996
4.6 Classes of emission
The receiver shall be capable of receiving emissions of classes A2A, H2A, A3E and H3E.
4.7 Warming up period
The equipment shall meet the requirements of this ETS one minute after being switched on.
4.8 Instructions
Adequately detailed operation and maintenance instructions shall be provided with the equipment.
4.8.1 Repair instructions
If the equipment is so constructed that fault diagnosis and repair are practicable down to component level,
the instructions shall include full circuit diagrams, component layouts and component parts lists.
If the equipment contains modules in which fault diagnosis and repair down to component level is not
practicable, the instructions shall contain sufficient information to enable localisation and replacement of
the defective module(s). With regard to other modules and components in the equipment, the instructions
shall contain the information mentioned above.
4.8.2 Accessibility
All parts of the equipment which are subject to inspection and maintenance adjustments shall be easily
accessible. Components shall be easily identifiable either by markings within the equipment or with the aid
of technical description.
5 Test conditions, power supplies and ambient temperatures
5.1 General
Conformance testing shall be made under normal test conditions and also, where stated, under extreme
test conditions.
5.2 Test power source
During the conformance tests, the equipment shall be supplied from a test power source capable of
producing normal and extreme test voltages as specified in subclauses 5.3.2 and 5.4.2.
The voltage of the power source shall be measured at the input terminals of the equipment.
The test power source voltages shall be maintained within a tolerances of
±
3 % relative to the voltage at
the beginning of the test.
5.3 Normal test conditions
5.3.1 Normal temperature and humidity
The normal temperature and humidity conditions for tests shall be any combination of temperature and
humidity within the following ranges:
- temperature: + 15
°
C to + 35
°
C;
- relative humidity: 20 % to 75 %.