Chapter 4 General specifications
4.4.3 Safety and preventative measures for handling GSM/GPRS modems
The following safety and preventative measures must be observed during all phases of installation, operation,
maintenance or repair of a GSM/GPRS modem. The manufacturer is not liable if the customer disregards
these preventative measures.
CAUTION:
The GSM/GPRS modem connection must not be used in hazardous environments.
No guarantee of any kind, whether implicit or explicit, is given by the manufacturer and its suppliers for the use
with high risk activities.
In addition to the following safety considerations, all directives of the country in which the device is installed
must be complied with.
Important note:
No liability shall be assumed at any time and under no circumstances for
connections via a GSM/GPRS modem for which wireless signals and networks are utilized. The
GSM/GPRS modem must be switched on and operated in an area where sufficient signal strength is
present.
4.4.3.1 Safety and precautionary measures for the GSM/GPRS modem installation
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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 operated in highly flammable areas such as petrol filling stations, fuel storage
sites, chemical factories and explosion sites.
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The device must not be operated in the vicinity of flammable gases, vapours or dusts.
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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 located in the vicinity of television sets, radios
or computers.
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Do not open the GSM/GPRS modem. Any modification to the device 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 incur additional
costs. The user is solely 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.
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The voltage supply must be switched off before replacing the antenna.
Rev. 05
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