MTX-IND-V2 Industrial Featured GSM-GPRS terminal modem http://www.matrix.es
MTX-IND-V2 User Manual V.1.1
Page. 35
Subject to change without prior notice
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 any unauthorized persons.
6.4. Antenna precautions
If the antenna is going 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 need 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 potentials are not always what they appear to be.
6.5. Radio Frequency (RF) exposure and SAR
Your wireless modem device is a low-power radio transmitter and receiver (transceiver). When it is turned
on, it emits low levels of radio frequency energy (also known as radio waves or radio frequency fields).
Governments around the world have adopted comprehensive international safety guidelines developed by
scientific organizations e.g. ICNIRP (International Commission on Non-Ionizing Radiation Protection) and
IEEE (The Institute of Electrical and Electronics Engineers Inc.), through periodic and thorough evaluation
of scientific studies. These guidelines establish permitted levels of radio wave exposure for the general
population. The levels include a safety margin designed to assure the safety of all persons, regardless of
age or health, and to account for any variations in measurements.
Specific Absorption Rate (SAR) is the unit of measurement for the amount of radio frequency energy
absorbed by the body when using a transceiver. The SAR value is determined at the highest certified
power level in laboratory conditions, but the actual SAR level of the transceiver while operating can be well
below this value. This is because the transceiver is designed to use the minimum power required to reach
the network.
The MTX-IND-V2 wireless modem device has been approved for applications where the antenna is located
>20cm from the body. In all other configurations the integrator is responsible for meeting the local SAR
regulations.
Users of the MTX-IND-V2 wireless modem device are responsible for ensuring that they meet the SAR
regulatory requirements of the countries in which they intend to operate the device and that their
documentation contains the relevant SAR declaration, certification information and user guidance as
appropriate.
6.6. Personal Medical Devices
Wireless modem devices may affect the operation of cardiac pacemakers, hearing aids and certain other
implanted equipment. If a minimum distance of 15 cm (6 inches) is maintained between the MTX-IND-V2
terminal radiating antenna and a pacemaker, the risk of interference is limited. If the user’s application is
likely to be situated in the vicinity of personnel, a suitable warning should be contained in the equipment
manual to this effect.
