Dell PowerEdge R820 Technical Manual

Also see for PowerEdge R820: Manual Installation Installation Portfolio guide Getting started guide

Contents

33 PowerEdge R820 Technical Guide9 Rack rails and cable managementThe sliding and static rail systems for the Dell PowerEdge R820 provide tool-less support for four-post racks with square or unthreaded round mounting holes. Both rail systems also support tooledmounting in four-post threaded racks, and the static rails support tooled mounting in two-post(Telco) racks as well for added versatility.Compared to the R810 sliding rails that required the use of adapter brackets, the sliding rails for theR820 now offer support for threaded hole racks with the ReadyRails II mounting interface. Theoptional cable management arm (CMA) can be mounted on either the left or right side of the slidingrails without the use of tools for fast and easy deployment.Sliding and static rail systemsThe R820 supports both sliding rails and static rails. Both rails have a new slim rail design thatsupports the wide system chassis. The rails ship in the tool-less mounting configuration, but can beconverted to the tooled configuration very quickly and easily.Sliding rails include a self-adjusting feature to allow the rails to be shared across multiple systemsand accommodate various chassis depths. The sliding rail system allows you to fully extend theserver out the rack for easy access for service. The sliding rails are available with or without theoptional CMA. Figure 9 shows the sliding rails with the CMA.Figure 9. Sliding rails with optional CMA