Cable Management Arm (Cma); Rack Types Supported; Rail Adjustability Range And Rail Depth - Dell External OEMR R410 Technical Manual

Dell
Rail
Identifier
A3
A4
*Requires the 1U Threaded Rack Adapter Brackets Kit (Dell PN 8Y19G)
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 therefore 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. 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.
Note that 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 R410 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 R410 CMA include:

Large U-shaped baskets to support dense cable loads

Open vent pattern for optimal airflow

Fully reversible (can be mounted on either side) with no conversion required

Utilizes hook-and-loop straps rather than plastic tie wraps to eliminate the risk of cable
damage during cycling

Includes a low profile fixed tray to both support and retain the CMA in its fully closed position
PowerEdge R410 Technical Guide
Table 14.
Mounting Rail
Interface Type
ReadyRails™ Sliding
ReadyRails/Generic Static

Rail Adjustability Range and Rail Depth

Table 15.
Rail
Rail Adjustability Range (mm)
ID
Square Round
Min Max Min
A3 686 883 672
A4 608 879 594

Rack Types Supported

Rack Types Supported
4-Post
Square Round
√ √
√
√
Threaded
Max Min Max
876 651 897
872 604 890
2-Post
Thread Flush Center
√* X
√ √
Rail Depth
(mm)
without with
CMA CMA
714 835
622 —
X
√
45