Hitachi AMS 2100 Hardware Manual page 161

Figure 5-39: Connecting an ENC Cable to a High-density Expansion Unit
6. Slide the cable holder all the way into the high-density expansion unit.
As you do so, the lock lever will close part way.
7. Push inward on the lock lever to close it. Ensure that the lock button
snaps into place and locks the lever closed.
Cable routing diagrams
The following diagrams show examples of how to connect ENC cables from
an AMS 2100/2300 to a variety of expansion unit and high-density
expansion unit configurations.
Hitachi AMS 2100/2300 Storage System Hardware Guide
Installation
5–43