5Basic 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 easily accessible to this SwitchingHub. 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 to malfunction. Do not touch the metal terminal of the RJ45 connector, the modular plug of connected twisted paircable, or the metal terminal of the SFP extension slot. Do not place charged objects in the proximityof them. Static electricity could lead to equipment failure. Do not put the modular plug of the connected twisted pair cable on objects that 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 equipmentfailure. Before connecting a console cable to the console port, discharge static electricity, for example by touchingmetal appliance (do not discharge by touching this Switching Hub). Do not store and/or use this Switching Hub in the environment with the characteristics listed below.(Store and/or use this Switching Hub in the environment in accordance with the specification.)- High humidity. Possible spilled liquid (water).- Dusty. Possible static charge (such as carpet).- Under direct sunlight.- Possible condensation. High/low temperature exceeding the specifications environment.- Strong vibration and/or strong shock. Please use this Switching Hub in place where ambient temperature is from 0 to 40℃.For Switch-M12PWR:When the total power supply is 140W or less, please use the Switching Hub in place where ambienttemperature is from 0 to 45℃.When the total power supply is 110W or less, please use the Switching Hub in place where ambienttemperature is from 0 to 50℃.For Switch-M24PWR:When the total power supply is 145W or less, please use the Switching Hub in place where ambienttemperature is from 0 to 45℃.When the total power supply is 130W or less, please use the Switching Hub in place where ambienttemperature 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 are out of guarantee.Additionally, do not cover the bent hole of this Switching Hub.Deviation could lead to high internal temperature, equipment failure and/or malfunction. When stacking Switching Hubs, leave a minimum of 20 mm space between them is required.