Dell UPS 10000R - Manual (Page 14)

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Installation and Startup
Installing the Rails
2 Remove the rails from the rail kit accessory box.
3 Select the proper holes in the rail for positioning the cabinet in the desired location in the rack.
Locate the rails at the bottom of the 5U space allocated for the UPS.
CAUTION: If installing an optional EBM, make provision for installing the EBM directly below the UPS with
no U space between the UPS and EBM.
NOTE: Observe the labels on the rails for right front (labeled RIGHT FRONT) and left front (labeled LEFT
FRONT). This is the way the rails should be positioned for installation.
4 Position the left and right rails as illustrated. Attach the the left and right rails to the rack:
Engage the back end of the rail until it fully seats on the vertical rack flange and the hook latch
locks in place.
Pull the rail just past the front of the rack.
Push the front end of the rail until it fully seats on the vertical rack flange and the hook latch locks
in place.