IBM Tape Library Magstar 3494 - Manual (Page 25)

Note: For additional 3494 configurations, see IBM 3494 Tape Library Introduction
and Planning Guide, GA32-0279.
The control unit frame provides full library function without the other optional
frames. Adding the optional frames to the control unit frame provides for additional
storage and tape drive capabilities. See Table 2 on page 25 for the cartridge
capacity of each frame.
Figure 1. IBM 3494 Tape Libraries
Chapter 1. Introduction 3