Safety Precautions
To use the device properly and safely, read the safety precautions carefully before using the device
and strictly observe these precautions when using the device.
Do not look directly into the optical port without eye protection.
Keep the device out of the reach of children as the components or accessories may be
swallowed.
The power supply voltage of the device must meet the requirements on the input voltage of the
device.
Do not use any power adapters that are not in the standard configuration. Otherwise, the
device may be abnormal or unsafe.
If the power adapter is damaged and its internal circuit is exposed due to man-made factors,
do not touch the exposed circuit, which may bring safety risks.
Prevent objects, such as metal, from entering the device through the heat dissipation hole.
Dry your hands before connecting or disconnecting cables. Stop the device and switch off the
power before connecting or disconnecting cables.
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.
Install the device according to the requirements of the manufacturer. To be specific, reserve
at least 10 cm for heat dissipation at the top and four sides of the device, keep the device
away from flammable objects, highly magnetic or electric devices, such as microwave ovens,
refrigerators, and mobile phones.
Do not place any object on the device, so that the device will not be damaged due to
overheating or deformation.
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.
Safety precautions:
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.
