About This ManualRelated DocumentationIn addition to this manual, each H3C S5500-EI Series Ethernet Switchesdocumentation set includes the following:Manual DescriptionH3C S5500-EI Series Ethernet SwitchesOperation ManualIt is used for assisting the users in dataconfigurations and typical applications.H3C S5500-EI Series Ethernet SwitchesCommand ManualIt is used for assisting the users in usingvarious commands.OrganizationH3C S5500-EI Series Ethernet Switches Installation Manual is organized as follows:Chapter Contents1 Product Overview Introduces the characteristics and technicalspecifications of S5500-EI Series Ethernet Switches.2 Installation Preparations Introduces the installation preparation and precautionof S5500-EI Series Ethernet Switches.3 InstallationIntroduces the procedures to install an S5500-EISeries Ethernet Switch, including the setup of themainframe, cards and cables.4 Initial Power-OnIntroduces the booting process of an S5500-EI SeriesEthernet Switch, including the power-on booting of theswitch and the system initialization.5 Boot ROM and HostSoftware LoadingIntroduces how to load Boot OM and host software foran S5500-EI Series Ethernet Switch.6 Maintenance andTroubleshootingIntroduces the problems that might occur during theinstallation and the booting of an S5500-EI SeriesEthernet Switch and the related solution.Appendix A LightningProtection of the SwitchIntroduces lightning protection of S5500-EI SeriesEthernet Switches.