3Important Safety InstructionsThis chapter contains important safety instructions for preventing bodilyinjury and/or property damage. You are required to follow them. Severity of bodily injury and/or property damage, which could result fromincorrect use of the Switching Hub, are explained below. The following symbols are used to classify and describe the type ofinstructions to be observed.This symbol is used to alertusers to what they must not do. Do not use power supply other than AC 100 - 240V.Deviation could lead to fire, electric shock, and/or equipment failure. Do not handle the power cord with wet hand.Deviation could lead to electric shock and/or equipment failure. Do not handle this Switching Hub and connection cables during athunderstorm.Deviation could lead to electric shock. Do not disassemble and/or modify this Switching Hub.Deviation could lead to fire, electric shock, and/or equipment failure. Do not damage the power cord. Do not bend too tightly, stretch,twist, bundle with other cord, pinch, put under a heavy object, and/orheat it.Damaged power cord could lead to fire, short, and/or electric shock. Do not put foreign objects (such as metal and combustible) into theopening (such as twisted pair port, console port, SFP extension slot),and/or do not drop them into the inside of the Switching Hub.Deviation could lead to fire, electric shock, and/or equipment failure.WARNINGThis symbol indicates safety instructions.Deviation from these instructions could leadto bodily injury and/or property damage.This symbol is used to alertusers to what they must do.WARNING This symbol indicates a potential hazard thatcould result in serious injury or death.CAUTION