IBM Tape Library Magstar 3494 - Manual (Page 30)

Figure 6 on page 9 shows the functional components of the drive unit frame with
four 3590 tape subsystems and a 3590 Model A00 or A50 Control Unit, viewable
from the front:
1
Cartridge storage cells
Are located on the interior side of the front door and on the back wall of the
frame.
2
Magnetic tape subsystems
The magnetic tape subsystems that can be installed in a drive frame are
the 3490E Magnetic Tape Subsystem Model C1A or C2A (not shown), the
3590 Magnetic Tape Subsystem Model F1A (one or two per frame), or the
3590 High Performance Magnetic Tape Subsystem Model B1A with or
without a 3590 Model A00 or A50 Control Unit.
3
Rail system
The cartridge accessor is carried through the library on the rail system
installed in each frame. The rail system consists of two horizontal rails, one
at the top and one at the bottom of the frame.
Figure 5. Storage Frame Functional Components (front)
8 Magstar 3494 Tape Library Operator Guide