
Regulatory Notices
Operating Ambient Temperatures
Operating temperature: +14 to 122°F (-10 to 50°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
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.
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.
Before connecting a cable, connect the grounding cable of the device
first. Do not disconnect the grounding cable until you disconnect all other
cables.
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.
Cleaning Requirements
Use a piece of soft, dry and anti-static cloth to clean the device.
Troubleshooting
The usage environment is out of operating temperature range.
1. Use in the operating temperature range.
The cable between the unit and the Yealink device is connected incorrectly.
1. Connect the cable correctly.
Some dust, etc., may be in the port.
1. Clean the port.
Contact your dealer or authorized service facility for any further questions.
FCC Statement
This device complies with part 15 of the FCC Rules. Operation is subject to the following
two conditions: (1) this device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation. Any Changes or modifications not expressly approved by
the party responsible for compliance could void the user's authority to operate the
equipment.
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