Dell EMC PowerEdge R640 Handmatig - Pagina 30
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Rack rails
The rail offerings for the R640 system consist of two types of rails—sliding and static.
The sliding rails allow the system to be fully extended out of the rack for service. They are available with or without the optional cable
management arm (CMA).
Figure 10. Sliding rails
The static rails support a wider variety of racks than the sliding rails. However, they do not support serviceability in the rack and are thus
not compatible with the CMA.
Figure 11. Static rails
One key factor in selecting the proper rails is identifying the type of rack in which they are installed. Both the sliding rails and the static rails
support tool-less mounting in 19 inch-wide, EIA-310-E-compliant square hole and unthreaded round hole 4-post racks. Both also support
tooled mounting in threaded hole 4-post racks, but only the static rails, as the more universal solution, support mounting in 2-post (Telco)
racks.
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Rack rails