Oracle Fujitsu SPARC M12-1 Service Manual page 183

Connect the one cable that connects the PSUBP to the HDDBP.
5.
Figure 13-8 HDDBP Cable
6. Store the connected cables in the cable guide, and lock the guide.
For details, see "6.1.1 Locking the Cable Guide."
Chapter 13 Maintaining the Cable Kit 169