Sliding Rail System; Supported Rack Types - Dell PowerEdge R920 Technical Manual

Sliding rail system
Sliding rails allow the system to be fully extended out of the rack for service and are
available with or without the optional cable management arm (CMA) and optional strain
relief bar (provided with the CMA).
Sliding rails support 19" width tool‐less mounting, EIA‐310‐E compliant square hole and
unthreaded round hole 4‐post racks. The rails also support tooled mounting in threaded
hole 4‐post racks, but the rails do not support mounting in 2‐post (Telco) racks
Rail
Identifier
B8
Key factors impacting the fit of the rail in a rack 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.
Rail
Product
Identifier
R920 B8
29 |
Dell PowerEdge Technical Guide
Figure 7. R920 Sliding Rails with optional CMA
Table 15. PowerEdge R920 ReadyRails II
Mounting Interface
ReadyRails II
Table 16.
Rail Adjustability Range (mm)
Rail
Square
Type
Min
Sliding 671
Rack Types Supported
Rail
4-Post
Type
Square
√
Sliding

Supported rack types

Round Threaded
Max Min Max Min
883 664 876 685
2-Post
Round Thread Flush
√ √
X
Rail Depth (mm)
without
CMA or
Max
SRB
898 755 883
.
Center
X
with
With SRB
CMA
833