Table 3. Rear panel descriptions (continued)
Number Item Comments
2 Power supply 2 Optional on Base Module and Expansion Modules
3 Tape drive bays Full high drives take up 2 bays and can only be
installed in the lower two drive bays.
4 Upper Expansion Module connection port
5 USB port Base Module only
6 Ethernet port B Base Module only (secondary port for service
usage)
7 Ethernet port A Base Module only
8 Module alignment mechanism
9 Lower Expansion Module connection port
10 Unit Identier LED, Blue
11 Controller Error LED, Yellow
12 Controller Health Status LED, Green
13 Product Serial Number, Tag location
Magazines
Each module contains two magazines, holding up to 40 cartridges.
Figure 9. Left magazine
IBM Condential
Chapter 1. Overview7