Sony Ericsson GR47/GR48 - Manual (Page 55)

8. HINTS FOR INTEGRATING THE RADIO DEVICE
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LZT 123 7589 R1A
8.1.2 SIM Card
• Before handling the SIM card in your application, ensure that you are
not charged with static electricity. Use proper precautions to avoid
electrostatic discharges. The radio device must be switched off before
the SIM card is installed in your application.
• 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 radio device 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.
8.1.3 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 radio device to a single antenna. The
radio device can be damaged by radio frequency energy from the
transmitter of another radio device.
• Like any mobile station, the antenna of the radio device 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 radio device 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
20 cm away from human bodies. When this rule cannot be applied, the
application designer is responsible for providing the SAR measurement
test report and declaration.
• Even if SAR measurements are not required, it is considered good
practice to insert a warning in any manual produced, indicating it is a
radio product and that care should be taken.