Installation ManualH3C S7500 Series Ethernet Switches Table of ContentsiTable of ContentsChapter 3 Installation Preparations............................................................................................. 3-13.1 Safety Precautions............................................................................................................. 3-13.1.1 General Safety Recommendations ......................................................................... 3-13.1.2 Electrical Safety....................................................................................................... 3-13.1.3 Handling Safety ....................................................................................................... 3-13.1.4 ESD Damage Prevention ........................................................................................ 3-23.1.5 Laser Safety ............................................................................................................ 3-33.2 Examining the Installation Site........................................................................................... 3-33.2.1 Temperature/Humidity Requirements ..................................................................... 3-33.2.2 Cleanness Requirements........................................................................................ 3-33.2.3 EMI Requirements .................................................................................................. 3-43.2.4 Grounding Requirements ........................................................................................ 3-43.2.5 Power Supply Requirements................................................................................... 3-43.3 Installation Planning........................................................................................................... 3-53.3.1 Installation Space Requirement .............................................................................. 3-53.3.2 Cabinet-Mounting Requirements ............................................................................ 3-53.4 Installation Tools ................................................................................................................ 3-6