HP BL20p - ProLiant - G2 Setup And Installation Manual page 67

Cabling and Powering Up the System
11. Install the bus bar locking latches on the top and bottom of the bus bars:
a. Set the locking latch on the bus bar (1).
b. Rotate the locking latch to lock it into place (2). To install the lower locking
latch, invert the directions of the arrows in Figure 4-15.
Figure 4-15: Installing bus bar locking latches
4-22 HP ProLiant BL p-Class System Setup and Installation Guide