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Regulatory Notices
Operating Ambient Temperatures
Operating temperature: +32 to 104°F (0 to 40°C)
Relative humidity: 5% to 90%, noncondensing
Storage temperature: -22 to +160°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.
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 specified maintenance center for
repair.
Do not insert any object into equipment slots
that is not part of the product or auxiliary
product.
6


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