Related DocumentationManual DescriptionH3C PSR300-12A & PSR300-12D1Power Modules User ManualIntroduces the features, specifications, installation andremoval of the PSR300-12A and PSR300-12D1 powermodules.H3C S5820X & S5800 Series EthernetSwitches Interface Cards User ManualIntroduces the types, appearance, installation andremoval of the interface cards used by the H3C S5820Xand S5800 series Ethernet switches.H3C OAP Cards User Manual Introduces the appearance, features and installation of theOAP cards.H3C LSW1FAN & LSW1BFANInstallation ManualIntroduces the features, specifications, installation andremoval of the LSW1FAN and LSW1BFAN fan modules.Obtaining Documentation and Technical SupportTo obtain up-to-date documentation and technical support, go to http://www.h3c.com and select yourcountry or region. Depending on your selection, you will be redirected to either of the following websites:At http://www.h3c.comDocumentationGo to the following columns for different categories of product documentation:[Products & Solutions]: Provides information about products and technologies, as well as solutions.[Technical Support & Document > Technical Documents]: Provides several categories of productdocumentation, such as installation, configuration, and maintenance.[Technical Support & Document > Software Download]: Provides the documentation released with thesoftware version.Technical Supportcustomer_service@h3c.comhttp://www.h3c.comAt http://www.h3cnetworks.comDocumentation1) Select Drivers & Downloads in the Support area.2) Select Documentation for Type of File and select Product Category.Technical SupportRegister Your ProductWarranty and other service benefits start from the date of purchase, so it is important to register yourproduct quickly to ensure you get full use of the warranty and other service benefits available to you.Warranty and other service benefits are enabled through product registration. Register your product athttp://www.h3cnetworks.com, go to Support, Product Registration. Support services are based onaccounts that you create or have authorization to access. First time users must apply for a user nameand password that provides access to a number of eSupport features including Product Registration,Repair Services, and Service Request. If you have trouble registering your product, please contact3Com Global Services for assistance.Purchase Value-Added ServicesTo enhance response times or extend warranty benefits, contact 3Com or your authorized reseller.Value-added services like Express SM and Guardian SM can include 24x7 telephone technical support,