Lenovo ThinkSystem SR550 Setup Manual page 38

Figure 19. Cable routing for server models with twelve 3.5-inch hot-swap drives, 16i adapter, and serial port module
Cable
SAS signal cable
1
SAS signal cable
2
Power cable
3
Power cable
4
ThinkSystem SR550 Setup Guide
34
From
SAS 0 and SAS 1 connectors on the
backplane
SAS 2 connector on the backplane
Power connector 1 on the backplane
Power connector 2 on the backplane
To
C0 and C1 connectors on the RAID
adapter installed in PCIe slot 1
C2 connector on the RAID adapter
installed in PCIe slot 1
Backplane power connector 1 on the
system board
Backplane power connector 2 on the
system board