Safety Precautions - Zte ZXHNF660 User Manual

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Safety Precautions

Usage Cautions
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Read all the safety cautions carefully before using the device.
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Only use the accessories included in the package, such as power supply
adapter.
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Do not extend the power cord, otherwise the device will not work.
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The power supply voltage must meet the requirements of the device input
voltage (The voltage fluctuation range is less than 10%).
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Keep the power plug clean and dry to prevent any risk of electric shock or
other dangers.
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Disconnect all the cables during a lightning storm to prevent the device from
damage.
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Power off and unplug the power plug when the device is not in use for a long
time.
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Do not attempt to open the covers of the device. It is dangerous to do so
when the device is powered ON.
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Do not directly stare at the optical interface to prevent any eye injuries.
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Power off and stop using the device under the conditions such as, abnormal
sound, smoke, and strange smell. Contact the service provider for mainte-
nance if the device is faulty.
Note:
The users should read the usage cautions above carefully and will be respon-
sible for any incident resulting from the violation of the above cautions.
Environment Requirements
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Ensure proper ventilation to the device. Place the device away from direct
sunlight and never spill any liquid on the device.
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Do not place any object on the device to prevent any deformation or damage
to the device.
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Do not place the device near any source of heat or water.
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Keep the device away from any household appliances with strong magnetic
or electric fields, such as microwave oven and refrigerator.
Cleaning Requirements
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Before cleaning, power off the device, and unplug all the cables connected
to the device, such as power cable, optical fiber, and Ethernet cable.
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Do not use any liquid or spray to clean the device. Use a soft dry cloth.
Environment Protection
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Do not dispose the device or battery improperly.
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Observe the local regulations about the equipment disposal or treatment.
RF exposure information
The Maximum Permissible Exposure (MPE) level has been calculated based
on a distance of d=20 cm between the device and the human body. To main-
tain compliance with RF exposure requirement, a separation distance of 20 cm
between the device and the human should be maintained.