Operating Ambient Temperatures
Operating temperature: +14 to 113°F (-10 to 45°C)
Relative humidity: 5% to 90%, noncondensing
Storage temperature: -22 to +158°F (-30 to +70°C)
Warranty
Our product warranty is limited only to the unit itself, when used normally in accordance with the operating
instructions and the system environment. We are not liable for damage or loss resulting from the use of this
product, or for any claim from a third party. We are not liable for problems with Yealink device arising from
the use of this product; we are not liable for financial damages, lost profits, claims from third parties, etc.,
arising from the use of this product.
Explanation of the symbols
DC symbol
is the DC voltage symbol.
WEEE Warning symbol
To avoid the potential effects on the environment and human health as a result of the
presence of hazardous substances in electrical and electronic equipment, end users of
electrical and electronic equipment should understand the meaning of the crossed-out
wheeled bin symbol. Do not dispose of WEEE as unsorted municipal waste and have to
collect such WEEE separately.
Restriction of Hazardous Substances Directive (RoHS)
This device complies with the requirements of the EU RoHS Directive. Statements of compliance can be
obtained by contacting support@yealink.com.
Safety Instructions
Save these instructions. Read these safety instructions before use!
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, avoid collision and crash.
Please attempt not to dismantle the device by yourself. In case of any discrepancy, please contact
the appointed maintenance center for repair.
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.
Do not place the device on or near any inflammable or fire-vulnerable object, such as
rubber-made materials.
Keep the device away from any heat source or bare fire, such as a candle or an electric heater.
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.
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.
5
Regulatory Notices
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