Chapter 1 – Product Description and Specifications
Multi-Tech Systems, Inc. SocketModem EDGE Embedded Wireless Modem Developer’s Guide (S000376A)
8
Potentially Explosive Atmospheres
Turn your modem OFF when in any area with a potentially explosive atmosphere. It is rare, but your modem
or its accessories could generate sparks. Sparks in such areas could cause an explosion or fire resulting in
bodily injuries or even death. Areas with a potentially explosive atmosphere are often, but not always, clearly
marked. They include fueling areas such as gas stations; below deck on boats; fuel or chemical transfer or
storage facilities; and areas where the air contains chemicals or particles, such as grain, dust, or metal
powders. Do not transport or store flammable gas, liquid, or explosives, in the compartment of your vehicle,
which contains your modem or accessories. Before using your modem in a vehicle powered by liquefied
petroleum gas (such as propane or butane) ensure that the vehicle complies with the relevant fire and safety
regulations of the country in which the vehicle is to be used.
Multi-Tech’s Compliance with Safety Standards
THIS WIRELESS SOCKETMODEM COMPLIES WITH ALL APPLICABLE RF SAFETY STANDARDS. This
cellular modem meets the standards and recommendations for the protection of public exposure to RF
electromagnetic energy that have been established by governmental bodies and other qualified
organizations, such as the following:
•
Directives of the European Community,
•
Directorate General V in Matters of Radio Frequency Electromagnetic Energy
Radio Frequency Exposures
Pursuant to 47 CFR § 24.52 of the FCC Rules and Regulations, personal communications services (PCS)
equipment is subject to the radio frequency radiation exposure requirements specified in § 1.1307(b), §
2.1091 and § 2.1093 as appropriate.
The Multi-Tech SocketModem is a GSM (cellular 850/PCS 1900) terminal which operates in the US licensed
PCS frequency spectrum. The device transmits over the 1850-1910 MHz or 824-849 MHz bands and
receives over the 1930-1990 MHz or 869-894 MHz bands. Multi-Tech Systems, Inc. certifies that it has
determined that the Modem complies with the RF hazard requirements applicable to broadband PCS
equipment operating under the authority of 47 CFR Part 24, Subpart E of the FCC Rules and Regulations.
This determination is dependent upon installation, operation, and use of the equipment in accordance with
all instructions provided.
The modem is designed for and intended to be used in fixed and mobile applications. "Fixed" means that the
device is physically secured at one location and is not able to be easily moved to another location. "Mobile"
means that the device is designed to be used in other than fixed locations and generally in such a way that a
separation distance of at least 20 cm is normally maintained between the transmitter's antenna and the body
of the user or nearby persons. The Modem is not designed for or intended to be used in portable
applications (within 20 cm of the body of the user) and such uses are strictly prohibited. To ensure that the
unit complies with current FCC regulations limiting both maximum RF output power and human exposure to
radio frequency radiation, a separation distance of at least 20 cm must be maintained between the unit's
antenna and the body of the user and any nearby persons at all times and in all applications and uses.
Additionally, in mobile applications, maximum antenna gain must not exceed
2.6
dBi
for mobile
applications and 3.5 dBi for fixed applications in the 850 MHz band
to comply with
24.232(b) and is limite
d
to
8.8
dBi for fixed applications
and 4.8 dBi for mobile applications in the 1900 band
.
Finally, the tune-up procedure for the modem ensures that the maximum RF output power of the device does
not exceed
30.0 dBm within the variations that can be expected due to quantity production and testing on a
s
tatistical basis.
