the rack must be stable and strong enough to hold the components installed.

    1 check the documentation for the rack to make certain that it can carry the load of components.

    2 if you are using a two-post (telco) rack, verify that the rack is securely fastened to the building’s structure at the top and bottom.

    3 make certain that all components are secured in the rack.

    4 when working with components in the rack, never extend more than one at a time.