3This chapter contains important safety instructions for preventing bodilyinjury and/or property damage. You are required to follow them. Do not use power supply other than AC 100 - 240 V.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, bundlewith other cord, pinch, put under a heavy object and/or heat it.Damaged power cord could lead to fire, and/or electric shock. Do not insert, nor drop foreign objects such as metal or combustible things intothe inside from the openings or twisted pair ports.Deviation could lead to fire, electric shock, and/or equipment failure. Do not connect equipments other than 10BASE-T/100BASE-TX/1000BASE-Tto twisted pair port.When connecting to a 10BASE-T device, use a Cat5 or above cable.Deviation could lead to fire, electric shock, and/or equipment failure. Do not place this Switching Hub in harsh environment (such as near water, highhumid, and/or high dust).Deviation could lead to fire, electric shock, and/or equipment failure. Do not place this Switching Hub under direct sunlight and/or hightemperature.Deviation could lead to high internal temperature and fire.This symbol indicates a potential hazardthat could result in serious injury or death. Severity of bodily injury and/or property damage, which could result from incorrectuse of the Switching Hub, are explained below. The following symbols are used to classify and describe the type of instructions tobe observed.Important Safety InstructionsWARNINGCAUTION This 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.This symbol is used to alertusers to what they must not do.WARNING