Figure 22. Installing the intrusion switch
Next steps
1. Install the air shroud.
2. Follow the procedure listed in After working inside your system.
Drive backplane
This is a service technician replaceable part only.
Drive backplane
Depending on your system configuration, the drive backplanes supported for R250 system are listed here:
Table 10. Supported backplane options for R250 system 
System Supported hard drive options
PowerEdge R250 3.5-inch (x4) SAS, SATA backplane
Figure 23. 4 x 3.5-inch drive backplane
1. BP_PWR_1 (backplane power and signal cable to PIB)
2. BP_DST_SA1 (SAS/SATA connector)
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Installing and removing system components