Chapter 4 General specifications
Important note: No liability shall be assumed at any time and under no condition for the
connection via a GSM/GPRS modem for whose use radio signals and networks are utilized,
The GSM/GPRS modem must be switched on and be operated in an area where sufficient
signal strength is present.
4.4.3.1 Safety and precautionary measures for the installation of the GSM/GPRS modem
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This device must only be installed by a trained technician who applies the recognised
installation practices for a radio frequency transmitter including the correct grounding of
external antennas.
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The device must not be operated in hospitals and/or in the vicinity of medical equipment such
as heart pacemakers or hearing aids.
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The device must not be subjected to strong vibrations or impacts.
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The GSM/GPRS modem can cause interferences if it is in the vicinity of television sets, radios
or computers.
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Do not open the GSM/GPRS modem. Any modification to the equipment is prohibited and will
result in the operating licence being revoked.
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The use of GSM services (SMS messages/data communication/GPRS, etc.) may lead to
additional costs. The user alone is responsible for any resulting damages and costs.
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Do not install the device in any other way to the one described in the operating instructions.
Improper use will invalidate the warranty.
4.4.3.2 Safety measures for installing the antenna
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Only use antennas that are recommended or supplied by the manufacturer.
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The antenna must be installed at a distance of at least 20 cm from individuals.
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The antenna must not be extended outside protected buildings and must be protected against
lightning strikes.
Rev. 01
15
