Installation and Service Manual

Table Of Contents
Figure 9. Electrical overview
Rail sizing and rack compatibility matrix
For specific information about the rail solutions compatible with your system, see the Dell EMC Enterprise Systems
Rail Sizing and Rack Compatibility Matrix available at https://i.dell.com/sites/csdocuments/Business_solutions_engineering-
Docs_Documents/en/rail-rack-matrix.pdf.
The document provides the information that is listed below:
Specific details about rail types and their functionalities.
Rail adjustability range for various types of rack mounting flanges.
Rail depth with and without cable management accessories.
Types of racks supported for various types of rack mounting flanges.
Locating the Express Service Code and Service Tag
The unique Express Service Code and Service Tag are used to identify the system.
The information tag is located on the front of the system that includes system information such as the Service Tag, Express
Service Code, Manufacture date, NIC, MAC address, QRL label, and so on. If you have opted for the secure default access to
iDRAC, the Information tag also contains the iDRAC secure default password.
PowerEdge R250 system overview
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