The direction of the bracket rotation will differ depending on the CMA moduel that you are using:
CMA with a rotate button
CMA with a rotate latch
3. Connect the CMA hinged tabs and retention bracket to the rack rails:
a. Insert the inner tab into the slide rail (callout 1).
b. Insert the outer tab into the mounting rail (callout 2).
c. Insert the retention bracket into the opposite mounting rail (callout 3).
There will be an audible click to indicate that the tabs and bracket are locked into place.