Huawei SmartAX MA5672 Quick Start Manual page 2

To use the device properly and safely, read the precautions carefully before using the device and
strictly observe these precautions when using the device.
Security warning and Precautions:

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.

Install the device in strict compliance with the requirements of the supplier. Reserve a
space of at least 10cm above and around the device for heat dissipation. During the
installation, keep the device away from electric appliances that generate strong magnetic
or electric fields, such as microwave ovens, refrigerators, and mobile phones.

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.

Dry your hands before connecting or disconnecting cables. Stop the device and switch
off the power before connecting or disconnecting cables.

Do not place any object on the device, so that the device will not be damaged due to
overheating or deformation.

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.

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.
Fire warning and Precautions:
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Precautions