Comtech EF Data RSU-503 - Manual (Page 25)

RSU-503 Redundancy Switch Unit Installation
Rev. 8 9
(2) Press down on
the spring nut to
compress the
spring, and rotate
the nut 90
°
(perpendicular to
the unistrut).
(3) Release pressure on the spring nut.
(4) Repeat Steps 3.b.(1) through 3.b.(3) for each spring nut.
c. Using four 5/16-18 x
1” bolts, 5/16” split
lockwashers, and
5/16” flat washers,
loosely secure the pipe
blocks to the spring
nuts in each 14”
unistrut.
Ensure the pipe blocks
are installed with the
long angle facing
inward, toward the
pipe, as illustrated.
DO NOT tighten the
pipe block bolts until
after mounting the
switch on the vertical
pole (see Step 5.e.).
4. Install the threaded rods as follows:
a. Install two spring nuts in the 14” long unistruts mounted on the unit.
Note: Ensure the spring nuts are positioned over the outer holes in the long
unistruts.