Comtech EF Data RSU-503 - Manual (Page 24)

Installation RSU-503 Redundancy Switch Unit
8 Rev. 8
To install the switch to a round vertical pole:
1. Set the switch on its side, with the mounting holes facing up.
2. Install the 14” unistrut as follows:
a. Position a 14” long
unistrut (with the open
side facing up) over
the mounting holes on
the unit.
b. Using three 1/4-20 x
5/8” bolts, 1/4” split
lockwashers, and 1/4”
flat washers, attach the
unistrut to the switch.
c. Tighten the bolts
firmly.
3. Install the pipe blocks as follows:
a. Install two spring nuts in the 14” long unistrut which is mounted on the unit,
and in a second 14” long unistrut.
Be sure to center the spring nuts in the unistruts wide enough apart so that
when the pipe blocks are installed, they will clear the pole when the unit is
lifted into place for installation.
b. Install each spring nut as follows:
(1) Place the spring
nut in the unistrut
channel, spring
side down, with
its wide side
parallel with the
unistrut channel.