3Com SuperStack 3C16115 User Manual page 29

4 Use an adjustable bracket to secure a rack-mounting rail to the rear of
your rack as shown in Figure 6. To do this:
a Slide the adjustable bracket onto the rack-mounting rail and attach it
using two of the screws provided at a position suitable for your rack.
b Use rack-nuts (not supplied) to attach the rack-mounting rail and
adjustable bracket assembly to the rear of your rack.
Figure 6 Fitting a Rack-Mounting Rail to the Rear of the Rack
Rack-Mounting the Webcache 29