16
Warning
When using products which are exposed to electric voltage the valid regulations have to be
observed.
Always make sure that the device is disconnected from the power supply before opening it.
You should only use tools on components, modules or devices if they are disconnected from the power
supply and the electric charge, which may still be stored in some components inside the device, has been
discharged.
All cables and wires which are energized and connected to the device, the module or components must
be checked regularly for any damage of the isolation shield or fractures of the cables. If the supply cables
are visibly damaged the device must be taken out of operation immediately until the faulty cable has
been replaced.
When using components or modules, the specification given in the corresponding description of these
components must strictly be observed. The device shall be operated only by appropriately qualified
personnel.
This device shall only be used for its intended purpose.
Please note that we are not responsible for any errors in usage of wireless connections. Therefore, we
cannot accept any responsibility for consequential loss.
In case measurements with the opened housing are necessary, an isolating-transformer must be
integrated for safety reasons. Alternatively, the voltage can be supplied by an appropriate power supply
which complies with the safety regulations. All wiring work must be done in a voltage free state only.
3.3
General precautions
The GT910 G terminal as a stand-alone item is designed for indoor use only. To use outside it must be
integrated into a weatherproof enclosure. Do not exceed the environmental and electrical limits as
specified in Section 2.4 Product Features and Technical Data.
Avoid exposing the modem to lighted cigarettes, naked flames or to extreme hot or cold temperatures.
Never try to dismantle the modem yourself. There are no components inside the modem that can be
serviced by the user. If you attempt to dismantle the modem, you will invalidate the warranty.
The GT910 G terminal must not be installed or located where the surface temperature of the plastic case
may exceed 80°C.
All cables connected to the GT910 G terminal must be secured or clamped, immediately adjacent to the
modem's connectors, to provide strain relief and to avoid transmitting excessive vibration to the modem in
the installation.
Ensure the cables, supplying power, and input cable to the GT910 G terminal do not exceed 3 meters.
To protect power supply cables and meet the fire safety requirements when the unit is powered from a
battery or a high current supply, connect a fast 1.25A fuse in line with the positive supply.
Do not connect any incompatible component or product to the GT910 G terminal.
3.4
SIM card precautions
Before handling the SIM card in your application, ensure that you are not charged with static electricity.
Use proper precautions to avoid electrostatic discharges.
