Dahua Digital VTH, Руководство пользователя

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III
Important Safeguards and Warnings
The following description is the correct application method of the device. Please read the manual
carefully before use, in order to prevent danger and property loss. Strictly conform to the manual
during application and keep it properly after reading.
Operating Requirement

Do not place expose the device to direct sunlight or heat sources.

Do not install the device in a humid, dusty or fuliginous area.

Install the device on a stable location horizontally to prevent it from falling.

Prevent liquid from flowing into the device.

Install the device at well-ventilated places and do not block its ventilation opening.

Use the device only within rated input and output range.

Do not disassemble the device by yourself.
Power Requirement

Use the product with electric wires recommended in this area and within rated specification.

Use power supply that meets SELV (safety extra low voltage) requirements, and supply
power with rated voltage that conforms to Limited Power Source in IEC60950-1. See the
device label for specific power supply requirements.

Appliance coupler is a disconnecting device. Keep an angle that facilitates operation during
normal use.