SQ864
GPRS Terminal
15
Sales: +44 (0) 118 967 9000
Fax: +44 (0) 118 976 9020
www.sequoia.co.uk
Rev 2.1.4 Jan 2011
Wireless Technology
Experience The Freedom
11.2 SIM card precautions
Before handling the SIM card in your application, ensure that you
have discharged any static
electricity. Use standard precautions to avoid electrostatic
discharges.
•
When designing the SQ864-GPRS into your application,
the accessibility of the SIM card should be taken into
account so that it can be removed or changed.
•
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.
11.3 Antenna precautions
If the antenna is to be mounted outside, always consider the risk of
a lightning strike. Follow the instructions provided by the antenna
manufacturer.
•
Never connect more than one terminal to a single
antenna. The terminal can be damaged by radio
frequency energy from the transmitter of another
terminal.
•
With all mobile station equipment, the antenna of the
terminal emits radio frequency energy. To avoid EMI
(electromagnetic interference) you must determine if the
application 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 external signal
cables.
•
The modem and antenna may be damaged if either
come into contact with ground potentials other than
the ground potential used in your application. Beware,
ground potentials can vary significantly between
hardware platforms.
12. Safety Recommendations
PLEASE READ CAREFULLY
Be sure the use of this product is allowed in the country and in the
environment required. The use of
this product may be dangerous and has to be used with caution in
the following areas:
•
Where it can interfere with other electronic devices in
environments such as hospitals, airports, aircrafts, etc
•
Where there is risk of explosion such as gasoline stations,
oil refineries, gas works etc
It is responsibility of the user to enforce the country regulation and
the specific environment regulation.
Do not disassemble the product, any mark of tampering will
compromise the warranty.
We recommend following the instructions of the hardware user
guide for the correct wiring of the product. The product has to
be supplied with a stabilized voltage source and the wiring has to
conform to the security and fire prevention regulations.
The product has to be handled with care, avoid any direct contact
with the pins because electrostatic discharge may damage the
product. The same precautions have to be observed for the SIM
card installation. Do not insert or remove the SIM when the
product is in power
saving mode. (AT+CFUN=5)
The system integrator is responsible for the complete functionality
of the final product. Therefore, care has to be taken with the
external components used with the module, as well as any
installation issue.
Should there be any doubt, please refer to the technical
documentation and the regulations in force.Every module has to be
equipped with a suitable antenna with characteristics which match
the product requirements.
