Multi-Tech Systems 92U05E06805 Manuale Utente

Chapter 4 – Safety  

Multi-Tech Systems, Inc. MultiModem® EDGE Wireless Modem User Guide 

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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 (8 inches) 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. or 8 in. of the body 
of the user) and such uses are strictly prohibited. 

 

It is important to follow any special regulations regarding the use of radio equipment due in particular to 
the possibility of radio frequency, RF, interference. Please follow the safety advice given below carefully. 

•  Switch OFF your Wireless MultiModem when in an aircraft. The use of cellular telephones in an 

aircraft may endanger the operation of the aircraft, disrupt the cellular network and is illegal. 
Failure to observe this instruction may lead to suspension or denial of cellular telephone services 
to the offender, or legal action or both. 

•  Switch OFF your Wireless MultiModem when around gasoline or diesel-fuel pumps and before 

filling your vehicle with fuel. 

•  Switch OFF your Wireless MultiModem in hospitals and any other place where medical equipment 

may be in use. 

•  Respect restrictions on the use of radio equipment in fuel depots, chemical plants or where 

blasting operations are in progress. 

•  There may be a hazard associated with the operation of your Wireless MultiModem close to 

inadequately protected personal medical devices such as hearing aids and pacemakers.  Consult 
the manufacturers of the medical device to determine if it is adequately protected. 

•  Operation of your Wireless MultiModem close to other electronic equipment may also cause 

interference if the equipment is inadequately protected. Observe any warning signs and 
manufacturers’ recommendations. 

•  The modems are open devices intended for installation in an ultimate enclosure suitable for the 

intended application.  

•  All wiring must be in accordance with wiring methods of Article 501.4B of the National Electrical 

Code, NFPA 70 or as specified in section 18-152 of the Canadian Electrical Code for installation 
within Canada and in accordance with the authority having jurisdiction.  

•  “WARNING - EXPLOSION HAZARD - Substitution of Components may Impair Suitability for 

ClassI Division 2”.  

•  “WARNING - EXPLOSION HAZARD - Do not Disconnect Equipment Unless Power has been 

switched off or the area is known to be Non - Hazardous”.  

•  “WARNING - EXPLOSION HAZARD - Do not replace the Fuse Unless Power has been switched 

off or the area is known to be Non - Hazardous”.  

•  “WARNING - Do not install or remove the SIM card Unless Power has been switched off or the 

area is known to be Non - Hazardous”.