Quectel QuecOpen AG521R-NA Hardware Design page 14

of the product. Otherwise, Quectel assumes no liability for customers' failure to comply with these precautions.
Full attention must be paid to driving at all times in order to reduce the risk of an accident.
Using a mobile while driving (even with a handsfree kit) causes distraction and can lead to an
accident. Please comply with laws and regulations restricting the use of wireless devices
while driving.
Switch off the cellular terminal or mobile before boarding an aircraft. The operation of
wireless appliances in an aircraft is forbidden to prevent interference with communication
systems. If there is an Airplane Mode, it should be enabled prior to boarding an aircraft.
Please consult the airline staff for more restrictions on the use of wireless devices on an
aircraft.
Wireless devices may cause interference on sensitive medical equipment, so please be aware
of the restrictions on the use of wireless devices when in hospitals, clinics or other healthcare
facilities.
Cellular terminals or mobiles operating over radio signal and cellular network cannot be
guaranteed to connect in certain conditions, such as when the mobile bill is unpaid or the
(U)SIM card is invalid. When emergent help is needed in such conditions, use emergency call
if the device supports it. In order to make or receive a call, the cellular terminal or mobile
must be switched on in a service area with adequate cellular signal strength. In an emergency,
the device with emergency call function cannot be used as the only contact method
considering network connection cannot be guaranteed under all circumstances.
The cellular terminal or mobile contains a transceiver. When it is ON, it receives and
transmits radio frequency signals. RF interference can occur if it is used close to TV sets,
radios, computers or other electric equipment.
In locations with explosive or potentially explosive atmospheres, obey all posted signs and
turn off wireless devices such as mobile phone or other cellular terminals. Areas with
explosive or potentially explosive atmospheres include fuelling areas, below decks 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.
AG521R-NA_QuecOpen_Hardware_Design
Automotive Module Series
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