Quick StartH3C S5100-SI/EI Series Ethernet SwitchesChapter 2 Preparing forInstallation2-1Chapter 2 Preparing for Installation2.1 Safety PrecautionsTo avoid any device impairment or bodily injury caused byimproper use, observe these rules:z Before cleaning the switch, unplug the power plug from theswitch first. Do not clean the switch with wet cloth or liquid.z Do not place the switch near water or any damp area.Prevent water or moisture from entering the switch chassis.z Do not place the switch on an unstable case or desk. Theswitch might be damaged severely in case of a fall.z Ensure proper ventilation of the equipment room and keepthe ventilation vents of the switch free of obstruction.z Make sure that the operating voltage is the same as thatlabeled on the switch.z Do not open the chassis while the switch is operating orwhen electrical hazards are present to avoid electricalshocks.z When replacing interface cards, wear ESD-preventivegloves to avoid damaging the cards.2.2 Installation SiteThe S5100 series must be used indoors. You can mount yourswitch in a rack or on a tabletop/workbench, but make sure:z Adequate clearance is reserved at the air inlet/exhaust ventsfor ventilation.