Dell
One key factor in selecting the proper rails is identifying the type of rack in which they will be installed. Both the sliding rails and the static rails support mounting in
Table 21 provides a summary of the rack types supported by the R515 rails.
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| Table 21. | Supported Racks |
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| Rack Types Supported |
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| Rail |
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| Mounting |
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| Rail |
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| Product |
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| ID |
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| Interface |
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| Type |
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| Square |
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| Round |
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| Thread |
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| Flush |
| Center |
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R515 |
| B3 |
| ReadyRails |
| Sliding |
| √ |
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| √ |
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| √* |
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| X |
| X |
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| B4 |
| ReadyRails/Generic |
| Static |
| √ |
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| √ |
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| √ |
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| √ |
| √ |
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*Requires the 2U Threaded Rack Adapter Brackets Kit (Dell PN PKCR1)
Screws are not included in the static rail kit due to the fact that threaded racks are offered with a variety of thread designations. Users must provide their own screws when mounting the static rails in threaded or 2- post racks.
Other key factors governing proper rail selection include the spacing between the front and rear mounting flanges of the rack, the type and location of any equipment mounted in the back of the rack such as power distribution units (PDUs), and the overall depth of the rack. See Table 22. Due to their reduced complexity and lack of need for CMA support, the static rails offer a greater adjustability range and an overall smaller footprint than the sliding rails.
Table 22. Rail Adjustability Ranges and Depth
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| Rail Adjustability Range (mm) |
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| Rail Depth (mm) |
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| Rail |
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| Mounting |
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| Rail |
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| Product |
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| Square |
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| Round |
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| Threaded |
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| without |
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| with |
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| ID |
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| Interface |
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| Type |
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| Min |
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| Max |
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| Min |
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| Max |
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| Min |
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| Max |
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| CMA |
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| CMA |
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| B3 |
| ReadyRails |
| Sliding | 686 |
| 883 |
| 672 |
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| 876 |
| 651 |
| 897 |
| 714 |
| 845 |
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R515 |
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| B4 |
| ReadyRails/ |
| Static | 608 |
| 879 |
| 594 |
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| 872 |
| 604 |
| 890 |
| 622 |
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| N/A |
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| Generic |
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The adjustment range of the rails is a function of the type of rack in which they are being mounted. The min and max values listed above represent the allowable distance between the front and rear mounting flanges in the rack. Rail depth represents the minimum depth of the rail as measured from the rack front mounting flanges when the rail rear bracket is positioned all the way forward.
13.3 Cable Management Arm (CMA)
The optional cable management arm (CMA) for the R515 organizes and secures the cords and cables exiting the back of the server and unfolds to allow the server to extend out of the rack without having to detach the cables. Some key features of the R515 CMA include:
∙Large
∙An
∙The CMA mounting is
47
PowerEdge R515 Technical Guide