Ensure that the crossbar attached to the shelf brackets is on the rear side of the rack
post.
Note
Figure 7: Installing Shelf Brackets and Crossbar in a 17.5-inch Opening
Shelf brackets5Fixed front-left rack post1
Crossbar6Fixed front-right rack post2
Two EA screws7Adjustable rear-right rack
post
3
Adjustable rear-left rack
post
4
Step 3
Adjust the adjustable rear-left and rear-right rack posts until it touches the shelf brackets flange surface and
secure by using four EA screws, with two EA screws on each side.
Catalyst 6880-X Switch Hardware Installation Guide
12 OL-30827-02
Installing the Switch
Installing the Rack-Mount Shelf Kit