c) Stretch the spring slightly and push the other looped end of the spring onto the other stud on the
inside of the rail.
Figure 17. Installing the rail spring
4. Working at the front of the rack cabinet, identify the two standard rack units (2U) of space in the rack
into which you want to install the support rails.
Figure 18 on page 20 shows two rack units with the front mounting holes identiîłed.
Chapter 2. Installing the system hardware
19