2-6 Setting Up The DAUInstalling the RailsNote : In the following procedure the left rail is shown asviewed from the front of the rack. Right rail installationprocedures also apply to installing the right rail.1. Rail support hooks are marked (L) for the left hook and (R) for right hook.With the left rail support hook (L) facing towards the inside of the cabinet,hang the top tab of the rail support hook on the square hole of the rack frontrail to which the DAU will be mounted. Be sure the counter-sunk holes inthe rail support hook are centered within the square holes of the rack frontvertical rail. Also, the hook projections on the rail support hooks should befacing upwards. See Figure 2-2.Figure 2-2. Positioning the Left Rail Support HookRail support hook (L)Hookprojections arefacing upwardsTop tabThis Manual:http://www.manuallib.com/nec/s1300ug-disk-array-unit-user-guide.html