Tripp Lite SmartOnline SU2000RTXLCD2U Owner's Manual page 5

Installation
4-Post Mounting (2U Units)
1
The included plastic pegs
rack-mount shelves B while you install the permanent
mounting hardware. Insert a peg into the third hole from the
top on the front end of each bracket. On the rear end, insert a
peg into the center hole. (Each front bracket has 6 holes and
each rear bracket has 5 holes.) The pegs will snap into place.
After installing the pegs, expand each shelf to match the depth
of your rack rails. The pegs will fit through the square holes in
the rack rails to support the shelves. Refer to the rack unit
labels to confirm that the shelves are level in all directions.
Note: The support ledge of each shelf must face inward.
2
Remove the pegs at the front end of each bracket. Secure the
shelves B to the mounting rails permanently using the
included screws and cup washers
at the front of each rail (4 total) and 2 screws at the back of
each rail (4 total). Tighten all screws before proceeding. Note:
The rear pegs can be left in for installation, but the front ones
must be removed before the bracket is secured by screws.
WARNING!
Do not attempt to install your UPS until you have
inserted and tightened the required screws. The plastic
pegs will not support the weight of your UPS.
3
Attach your UPS's mounting brackets
mounting holes E of the UPS using the included hardware
The mounting bracket "ears" should face forward.
4
With the aid of an assistant (if necessary), lift your UPS and
slide it into the shelves. Attach the UPS mounting brackets to
the forward mounting rails with user-supplied screws and
washers G . Tighten all screws securely.
A will temporarily support the empty
C as shown. Place 2 screws
D to the forward
A
1
B
C
2
F .
3
G
4
5
B
A
C
E
D
G
F