Huawei EchoLife HG520 User Manual page 5

Do not put heavy objects on the equipment.
Leave at least 10 cm space around the equipment for heat
dissipation.
Do not put the equipment on any object that is flammable or not
transcalent, such as foam and rubber.
Do not cover the equipment with any object or block the
ventilation holes of the equipment.
Keep the equipment away from any heat source or exposed fire,
such as an electronic warmer and a candle.
Keep the equipment away from appliances with a strong electric
field or magnetic field, such as a microwave oven and a
refrigerator.
Keep the equipment away from moisture or containers with liquid,
such as a vase and a cup.
Usage
Do not allow children to use the equipment alone.
Do not allow children to touch or play with the small fittings, to
avoid danger of deglutition.
Use the power adapter provided with the equipment only.
Use the accessories approved by the manufacturer.
The power supply shall meet the equipment specifications.
Before plugging or unplugging the cables, turn off the equipment
and unplug the power supply.
While plugging or unplugging the cables, keep your hands dry
and do not touch the metallic part of a cable.
Do not trample on, stretch, or over bend the equipment cables, to
avoid equipment failure.
Do not use broken or worn wires. If a wire is broken or worn,
contact your supplier for change.
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