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GM47/GM48 INTEGRATOR’S MANUAL
70
LZT 123 7263 R1C
• When the SIM card hatch is opened, the SIM card connectors lie
exposed under the SIM card holder. CAUTION: Do not touch these
connectors! If you do, you may release an electrical discharge that
could damage the module or the SIM card.
• When designing your application, the SIM card’s accessibility
should be taken into account. We always recommend that you have
the SIM card protected by a PIN code. This will ensure that the SIM
card cannot be used by an unauthorized person.
4.1.3 Antenna
• If the antenna is to be mounted outside, consider the risk of
lightning. Follow the instructions provided by the antenna
manufacturer.
• Never connect more than one module to a single antenna. The
module can be damaged by radio frequency energy from the
transmitter of another module.
• Like any mobile station, the antenna of the module emits radio
frequency energy. To avoid EMI (electromagnetic interference), you
must determine whether the application itself, or equipment in the
application’s proximity, needs further protection against radio
emission and the disturbances it might cause. Protection is secured
either by shielding the surrounding electronics or by moving the
antenna away from the electronics and the external signals cable.
• The module and antenna may be damaged if either come into contact
with ground potentials other than the one in your application.
Beware, ground potential are not always what they appear to be.
• In the final application, the antenna must be positioned more than
20cm away from human bodies. When this rule cannot be applied,
the application designer is responsible for providing the SAR
measurement test report and declaration.
4.2 Installation of the Module
4.2.1 Where to Install the Module
There are several conditions which need to be taken into consideration
when designing your application as they might affect the module and its
function. They are:
Environmental Conditions
The module must be installed so that the environmental conditions
stated in the Technical Data chapter, such as temperature, humidity and
vibration are satisfied. Additionally, the electrical specifications in the
Technical Data section must not be exceeded.