Technical Guide
Table Of Contents
- Dell EMC PowerEdge R250 Technical Guide
- Contents
- System overview
- System features and generational comparison
- Chassis views and features
- Processor
- Memory subsystem
- Storage
- Expansion cards and expansion card risers
- Power, thermal, and acoustics
- Rack, rails, and cable management
- Supported operating systems
- Dell EMC OpenManage systems management
- Dell Technologies Services
- Dell EMC ProDeploy Enterprise Suite
- Dell EMC Remote Consulting Services
- Dell EMC Data Migration Service
- Dell EMC ProSupport Enterprise Suite
- Dell EMC ProSupport Plus for Enterprise
- Dell EMC ProSupport for Enterprise
- Dell EMC ProSupport One for Data Center
- ProSupport for HPC
- Support Technologies
- Dell Technologies Education Services
- Dell Technologies Consulting Services
- Dell EMC Managed Services
- Appendix A: Additional specifications
- Appendix B. Standards compliance
- Appendix C Additional resources
Rack, rails, and cable management
Key factors in selecting the proper rails include, Identifying:
● Type of rack in which the rails will be installed
●
Spacing between the front and rear mounting flanges of the rack
● Type and location of any equipment mounted on the rear of the rack such as power distribution units (PDUs), and the overall
depth of the rack
Refer the DellEMC Enterprise Systems Rail Sizing and Rack Compatibility Matrix for the following information:
● Specific details about rail types and their functionalities
● Rail adjustability ranges for various rack mounting flange types
● Rail depth with and without cable management accessories
● Rack types supported for various rack mounting flange types
Topics:
• Rack Rails
Rack Rails
The ReadyRails
™
static rail system for the Dell EMC PowerEdge R250 provides tool-less support for racks with square or
unthreaded round mounting holes including all generations of Dell racks. The rails also offer tooled-mounting support for
four-post threaded and two-post (Telco) racks for added versatility.
Rails
The static rails for the R250 support tool-less mounting in 19–inch wide, EIA-310-E compliant square hole and unthreaded round
hole racks through the ReadyRails mounting interface. The rails also support a generic mounting interface for tooled mounting
in threaded hole and two-post (Telco) racks. Note that screws are not included in the 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 rails in
threaded or two-post racks.
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
below 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.
Table 20. Supported rack types
Product Rail ID Mounting
Interface
Rail Type Rack Types Supported
4-Post 2-Post
Square Round Thread Flush Center
R250 A4 ReadyRails
/Generic
Static √ √ √ √ √
9
Rack, rails, and cable management 31