HP 50 Modular Smart Array - Manual (Page 21)

Setup 21
Use the following information when connecting peripheral cables and power
cords to the storage enclosure.
Item Description
1 SAS In connector
2 SAS Out connector
3 Power supply 1
4 Power supply 2
Installing hardware options
Install any hardware options before initializing the storage enclosure. For options
installation information, refer to the option documentation. For storage
enclosure-specific information, refer to "Hardware Options Installation (on page
27 )."
Installing servers
Install the servers in the rack directly above the storage enclosure. Refer to the
server documentation.