Precautions for using industrial Ethernet switches
　　
(1) Do not place the device near water sources or in damp places;
　　
(2) Do not place anything on the power cable and keep it out of reach;
　　
(3) To avoid fire, do not tie or wrap cables;
　　
(4) Power connectors and other equipment connectors need to be securely connected, and the firmness of the wiring should be checked regularly;
　　
(5) Keep the fiber optic sockets and plugs clean, and do not look directly at the cross-section of the fiber optic when the equipment is working;
　　
(6) Pay attention to equipment cleaning, and if necessary, wipe with a cotton cloth;
　　
(7) When the equipment malfunctions, do not repair it yourself for safety reasons.