4Basic Instructions for the Use of This Product For inspection and/or repair, consult the retailer. Use commercial power supply from a wall socket, which is close and easilyaccessible to this Switching Hub. Unplug the power cord when installing or moving this Switching Hub. Unplug the power cord when cleaning this Switching Hub. Use this Switching Hub within the specifications. Deviation could lead tomalfunction. Do not touch the metal terminal of the RJ45 connector, the modular plug ofconnected twisted pair cable, or the metal terminal of the SFP extension slot.Do not place charged objects in the proximity of them. Static electricity couldlead to equipment failure. Do not put the modular plug of the connected twisted pair cable on objectsthat can carry static charge, such as carpet. Do not place it in the proximity.Static electricity could lead to equipment failure. Do not put a strong shock, including dropping, to this Switching Hub.Deviation could lead to equipment failure. Before connecting a console cable to the console port, discharge staticelectricity, for example by touching metal appliance (do not discharge bytouching this Switching Hub). Do not store and/or use this Switching Hub in the environment with thecharacteristics listed below.(Store and/or use this Switching Hub in the environment in accordance withthe specification.)High humidity. Possible spilled liquid (water).Dusty. Possible static charge (such as carpet).Under direct sunlight.Possible condensation. High/low temperature exceeding the specificationsenvironment.Strong vibration and/or strong shock. Please use this Switching Hub in place where ambient temperature is from 0to 40℃.When the total power supply is 145W or less, please use the Switching Hub inplace where ambient temperature is from 0 to 45℃.When the total power supply is 130W or less, please use the Switching Hub inplace where ambient temperature is from 0 to 50℃.Failure to meet the above conditions may result in fire, electric shock,breakdown, and/or malfunction. Please take notice because such cases areout of guarantee.Additionally, do not cover the bent hole of this Switching Hub.Deviation could lead to high internal temperature, equipment failure and/or