HP A3550A - High Availability Disk Arrays Model 20 Storage Enclosure Installation Manual page 2

Step 3: Install the BBU
Locate the slot where the BBU is to be installed (Figure
1) and remove the failed BBU or the BBU filler panel if
present (Figure 2). To remove the BBU, slide the black
latches toward the center of the unit and extract the
BBU.
Install the BBU as shown in Figure 2.
Push the BBU into the disk array chassis until the
latches on the BBU lock and audible clicks are heard.
When the latches are locked, the BBU cannot be pulled
out again without using the latches.
deskside 10-slot disk array
For more information on BBU installation procedures and
recharge times, see the disk array user guide.
rackmount 10-slot disk array
Figure 2.
Manual Part Number
A3661-90003 E0897
If installing a BBU in a 10-slot disk array, install the
front bezel on the ballstuds.
If installing a BBU in a 30-slot disk array, close the fan
pack by carefully swinging the fan pack up and firmly
pressing it onto the latch until an audible click is heard.
When the fan pack is properly latched, it cannot be
opened without using the release button.
30-slot disk array, rackmount only
(fan pack not shown for clarity)
Copyright © 1997
Hewlett-Packard Company
*PA3661-96003*
A3661-96003