Cable Management Arm (Cma); Rack View; Table 17. Rail Adjustability Ranges And Depth; Figure 12. R715 Mounted In The B2 Sliding Rails - Dell PowerEdge R715 Technical Manual

Dell
The adjustment range of the rails is a function of the type of rack in which they are being mounted.
The min-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 R715 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 R715 CMA include:

Large U-shaped baskets support dense cable loads.

An open-vent pattern allows optimal airflow.

The CMA mounting is fully-reversible (can be mounted on either side) with no conversion
required.

Hook-and-loop straps are used (rather than plastic tie wraps) to eliminate the risk of cable
damage during cycling.

A low-profile fixed tray is included to support and retain the CMA in its fully-closed position.

The CMA and the tray can be mounted without the use of tools using simple and intuitive
snap-in designs.

13.4 Rack View

The R715 ReadyRails sliding rails are a drop-in design, meaning that the system is installed vertically
into the rails by inserting the shoulder nuts on the sides of the system into the J-slots in the inner
rail members with the rails in the fully extended position. See Figure 12.
PowerEdge R715 Technical Guide
Rail Adjustability Ranges and Depth
Table 17.
Rail Adjustability Range
(mm)
Square Round
Min Max Min Max
686 883 672 876

Figure 12. R715 Mounted in the B2 Sliding Rails

Rail Depth
(mm)
Threaded
without
CMA
Min Max
651 897 755
with
CMA
883
46