About This ManualOrganizationH3C S5500-EI Series Ethernet Switches Installation Manual is organized as follows:Chapter Contents1 Product Overview Briefly introduces the appearance, system description, as well asthe features and applications of the S5500-EI series switches.2 Preparing for InstallationDescribes the requirements on installation site, the safetyrecommendations before and during installation, and therequired tools.3 Installing the SwitchCovers the procedures for installing the S5500-EI seriesswitches, ground wire connection, power module installation,interface module installation, and so on.4 Starting and Configuring theSwitchHelps you get familiar with the basic knowledge of how to bootand configure the S5500-EI series switches, including devicestartup, power-on, and initialization of system files, and so on.5 Boot ROM and Host SoftwareLoadingIntroduces how to load Boot ROM and host software for anS5500-EI series switch6 Maintenance andTroubleshootingIntroduces the problems that might occur during the installationand the booting of an S5500-EI series switch and the relatedsolution.Appendix A Lightning Protectionof the SwitchIntroduces lightning protection of S5500-EI Series EthernetSwitches.ConventionsThe manual uses the following conventions:Command conventionsConvention DescriptionBoldface The keywords of a command line are in Boldface.italic Command arguments are in italic.[ ] Items (keywords or arguments) in square brackets [ ] are optional.{ x | y | ... } Alternative items are grouped in braces and separated by vertical bars.One is selected.[ x | y | ... ] Optional alternative items are grouped in square brackets andseparated by vertical bars. One or none is selected.{ x | y | ... } * Alternative items are grouped in braces and separated by vertical bars.A minimum of one or a maximum of all can be selected.[ x | y | ... ] * Optional alternative items are grouped in square brackets andseparated by vertical bars. Many or none can be selected.&<1-n> The argument(s) before the ampersand (&) sign can be entered 1 to ntimes.# A line starting with the # sign is comments.