Extreme Networks Extreme 7520 Series Hardware Installation Manual page 55

Install the Switch
Figure 19: Attaching the Outer Rail
3. Attach an inner rail to the side of the unit, using the M4 screws.
•
If you are using the 1U long rack ears (already attached to the inner rail): Ensure
that the rack ear is flush with the either the front or the rear panel of the unit and
continue to step 4.
Figure 20: Front Installation: Attaching the Inner Rail
•
If using the 1U or 2U short rack ears, attach one to the side of the unit using the
#6-32 screws, so that the rack ear is flush with either the front or the rear panel of
the unit.
Extreme 7520 Hardware Installation Guide
Four-Post Rack Mount
55