Dell PowerEdge R930 Owner's Manual page 160

Figure 92. Cabling—2.5 inch (x24) SAS/SATA backplane with PERC 9
1 SAS (A and B) cable connector on the integrated storage
controller card
3 system board
5 x24 hard drive backplane
7 backplane jumper cable connector on the expander
daughter card
9 SAS A cable connector on the expander daughter card
11 backplane jumper cable connector on the backplane
160 Installing and removing system components
2 integrated storage controller card (PERC 9)
4 cable management tray
6 SAS B cable connector on the expander daughter card
8 SAS jumper cable connector on the expander daughter
card
10 SAS jumper cable connector on the backplane