HP NonStop G-Series - Manual (Page 31)

5157/5157 ACL S-Series DLT Subsystems Installation/Users Guide
Unpacking and Installing the 5157/5157 ACL Tape Subsystem
2-14
Figure 2-12 Dimensions of the base and stackable cabinet
2.6.1 Base Cabinet
The only usable shelves in the base cabinet are the top two. The
bottom shelf will remain empty. The base cabinet is able to store up
to two 5157 ACL drives or four 5157 drives. The cabinet can also
store a combination of the two. Figures 2-13, 2-14 and 2-15 show
examples of the configurations.