Cleaning And Maintenance - Huawei B612 Quick Start Manual

warranty, may violate local regulations and laws, and may be
dangerous. Please contact your retailer for information about the
availability of approved accessories in your area.
Power adapter safety

The power plug is intended to serve as a disconnect device.
 For pluggable devices, the socket-outlet shall be installed near the
devices and shall be easily accessible.
 Unplug the power adapter from electrical outlets and the device when
not in use.
 Do not drop or cause an impact to the power adapter. If it is damaged,
take it to an authorized service center for inspection.
 If the power cable is damaged (for example, the cord is exposed or
broken), or the plug loosens, stop using it at once. Continued use may
lead to electric shocks, short circuits, or fire.
 Do not touch the power cord with wet hands or pull the power cord to
disconnect the power adapter.
 Do not touch the device or the power adapter with wet hands. Doing
so may lead to short circuits, malfunctions, or electric shocks.
 If your power adapter has been exposed to water, other liquids, or
excessive moisture, take it to an authorized service center for inspection.

Ensure that the power adapter meets the requirements of Clause 2.5 in
IEC60950-1/EN60950-1/UL60950-1 and has been tested and approved
according to national or local standards.

Cleaning and maintenance

 During storage, transportation, and operation of the device, keep it dry
and protect it from collision.
 Keep the device and accessories dry. Do not attempt to dry it with an
external heat source, such as a microwave oven or hair dryer.
 Do not expose your device or accessories to extreme heat or cold.
These environments may interfere with proper function and may lead
to fire or explosion.

Avoid collision, which may lead to device malfunctions, overheating,
fire, or explosion.
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