11
Safety Instructions
Save these instructions. Read these safety instructions before use!
The following basic safety precautions should always be followed to reduce risk of re, electrical shock, and other
personal injury.
General Requirements
Before you install and use the device, read the safety instructions carefully and observe the situation during
operation.
During the process of storage, transportation, and operation, please always keep the device dry and clean.
During the process of storage, transportation, and operation, please avoid collision and crash of the device.
Please attempt not to dismantle the device by yourself. In case of any discrepancy, please contact the
appointed maintenance center for repair.
Without prior written consent, no organization or individual is permitted to make any change to the structure
or the safety design of the device. Yealink is under no circumstance liable to consequences or legal issues
caused by such changes.
Please refer to the relevant laws and statutes while using the device. Legal rights of others should be respected
as well.
Environmental Requirements
Place the device at a well-ventilated place. Do not expose the device under direct sunlight.
Keep the device dry and free of dusts.
Place the device on a stable and level platform.
Please place no heavy objects on the device in case of damage and deformation caused by the heavy load.
Keep at least 10 cm between the device and the closest object for heat dissipation.
Do not place the device on or near any inammable or re-vulnerable object, such as rubber-made materials.
Keep the device away from any heat source or bare re, such as a candle or an electric heater.
Keep the device away from any household appliance with strong magnetic eld or electromagnetic eld, such
as a microwave oven or a refrigerator.
Operating Requirements
Do not let a child operate the device without guidance.
Do not let a child play with the device or any accessory in case of accidental swallowing.
Please use the accessories provided or authorized by the manufacturer only.
The power supply of the device shall meet the requirements of the input voltage of the device. Please use the
provided surge protection power socket only.
Before plugging or unplugging any cable, make sure that your hands are completely dry.
Do not spill liquid of any kind on the product or use the equipment near water, for example, near a bathtub,
washbowl, kitchen sink, wet basement or near a swimming pool.
Do not tread on, pull, or over-bend any cable in case of malfunction of the device.
During a thunderstorm, stop using the device and disconnect it from the power supply. Unplug the power
plug and the Asymmetric Digital Subscriber Line (ADSL) twisted pair (the radio frequency cable) to avoid
lightning strike.
If the device is left unused for a rather long time, disconnect it from the power supply and unplug the power
plug.
When there is smoke emitted from the device, or some abnormal noise or smell, disconnect the device from
the power supply, and unplug the power plug immediately. Contact the specied maintenance center for
repair.
Do not insert any object into equipment slots that is not part of the product or auxiliary product.
Before connecting a cable, connect the grounding cable of the device rst. Do not disconnect the grounding
cable until you disconnect all other cables.
Cleaning Requirements
Before cleaning the device, stop using it and disconnect it from the power supply.
Use a piece of soft, dry and anti-static cloth to clean the device.
Keep the power plug clean and dry. Using a dirty or wet power plug may lead to electric shock or other perils.
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General
Weight and Dimensions
