Integrator's Manual GR47/GR48

8. HINTS FOR INTEGRATING THE RADIO DEVICE

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.