Prevent objects, such as metal, from entering the device through the heat dissipation hole.
Switch off the power and disconnect all cables, including the power cable, optical fiber, and network cable,
during periods of lightning activities. The socket-outlet shall be installed near the power adapter and shall
be easily accessible. Before use the power adapter, please check no damage on the adapter.
Do not lead the strength member of the optical fiber or other metal parts indoors. Do not install telephone
lines, network cables, power adapters or power adapter cables outdoors. Adopting these measures will
help prevent device damage and bodily injuries which are especially prone during thunderstorms.
If an abnormality occurs, for example, liquid entering the device, smoke, unusual sound, and smell, stop
the device immediately, switch off the power, disconnect all cables (such as the power cable, optical cable,
and network cable) to the device, and contact the authorized service center.
Do not disassemble the device without permission. In the case of a device fault, contact the authorized
service center.
Dispose of the packing materials, expired batteries, and old or abandoned devices in accordance to local
laws and regulations (recycling them is strongly recommended).
Do not change the structure, safety design, or performance design of the device without prior authorization.
The device should be installed and operated with a minimum distance of 20 cm between the radiator and
your body.
Fireproof precautions:
Keep the device away from large heat source equipment, bare flames, and high-power devices, such as
electric heaters, candles, and blow drier, to eliminate safety risks.
If there are aged cables or power socket facilities on the power supply line to or near the device, replace
them in time to eliminate safety risks. The power supply voltage of the device must meet the input voltage
requirement.
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