Table 1. TS3500 Tape Library frame models
Frame 
model Type Depth
Media type and 
capacity Other
installation of FC 1701
1
D53
Expansion 
frame
Short
LTO 
Ultrium
Up to 12 
drives and 
up to 440 
cartridges
• Optionally equipped 
with the enhanced frame 
control assembly
• Optionally equipped 
with four I/O stations
• Optionally configured 
as service bay B, if not 
equipped with four I/O 
stations
S54
Expansion 
frame
Short
LTO 
Ultrium
Up to 1 320 
cartridges
• Optionally configured 
as service bay B
Note: 
1. Prerequisite for any frame with a node card installed in a library string with code 
level 9500 or higher.
Models L22, D22, L23, D23, L52, D52, L53, D53, S24, and S54 are compatible with Models 
L32 and D32, but require additional features because they use different side and rear 
covers. If you change from a Model L32 or D32 to a Model D22, D23, D52, D53, S24, or 
S54 (or from a Model D22, D23, D52, D53, S24, or S54 to a Model D32) within the same 
library you may also need the appropriate side covers. 
When expanding an installed library, an expansion frame is installed at the end of the 
library string (end of the library string refers to the very last frame or, if requested by the 
customer, the last frame before service bay B). In order to have the expansion frame 
installed somewhere other than the end of the library string, the Service Representative 
must obtain a "Services Contract" to uninstall additional frames as necessary to 
accommodate the customer's request.
The IBM® System Storage™ Tape Library Specialist Web interface and 10/100 Ethernet 
support are included with Models L22, L23, L52, and L53. For Model L32, they are available 
as feature codes 1662 and 1660, respectively.
Figure 1 shows an example of a base frame and an expansion frame.