Note; Installation Precautions; Precautions For Use - Zoom Realtek Series User Manual

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1 Note

 Do not place the equipment near flammable or conductive items, high temperatures (such as direct

sunlight) or in wet conditions, or on a PC chassis, and check that the surrounding appliances are stable.

 Check the cable for aging. Check and verify that the AC or DC input voltage is within the permissible range

of the device and that the polarity of the DC is correct.

 Unless the manufacturer permit, use the type of power indicated on the label and the adapter supplied

with the product.

 To prevent damage to the product from lightning, make sure that the ground of the power outlet and the

power adapter is securely grounded. In the thunderstorm, be sure to unplug the power and all the

connections.

 Equipment input voltage fluctuation should be less than 10%, the power plug, refrigerators, hair dryer and

iron should not use the same socket.

 To avoid electric shock or fire due to overload of the power outlet, damage to the cord or damage to the

plug, check the power cord regularly. If damage is found, replace it immediately.

 Please place the device on a flat surface and cannot place items on the device.

 Equipment is easy to produce heat when working, should maintain the appropriate cooling space to avoid

damage caused by overheating products. The elongated hole on the shell is designed for heat dissipation.

Keep the ventilation clean and avoid falling from the heat sink into the equipment. Otherwise, the

equipment may be damaged or fire. Do not spill liquid onto the surface of the equipment.

 Please read the user manual carefully before using the equipment and follow all the precautions on the

user manual and the product.

 Avoid eye looked at the optical interface directly, so as to avoid the laser beam emitted by the interface

damage the eyes. Please try to wear safety glasses to effectively protect your eyes from damage. It is best

to plug in the fiber optic interface jacket when the optical interface is not in use.

 Turn off the power when the device is not in use

 Before plugging the power supply, make sure that the power switch is turned off to avoid surge. Be careful

when unplugging the power supply and the transformer temperature may be high.

 To ensure safety, do not open the enclosure of the device, especially when the device is powered up.

 Unplug the power supply before cleaning the equipment. Use a soft dry cloth to clean the equipment to

avoid the use of liquids or sprays.

 Do not connect this product to any electronic product unless it is instructed by our customer engineer or

your broadband supplier, as any incorrect connection may cause power or fire hazard.

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