CEP AG
Revision 1.2
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Page 17 of 28
Note: CEP AG may refuse warranty claims where evidence of product misuse is
found.
4.3 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.
• 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 modem 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.
4.4 Antenna precautions
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 modem to a single antenna. The modem can be
damaged by radio frequency energy from the transmitter of another modem.
Like any mobile station, the antenna of the modem 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 modem 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.
5 Installation of the modem
This chapter gives you advice and helpful hints on how to integrate the GT864-
QUAD/PY Terminal into your application from a hardware perspective. Please read
the information given in “Safety and Product Care”, page 10 and then read the
information in this section before starting your integration work.
