User's Manual

36
External Radio Unit Installation Guide
Installing the ERU on a cinder-block or hollow wall
Tools and materials
Make sure you have the following items on hand before you begin.
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To install the ERU a hollow or cinder block wall
1
If you are installing the ERU on cinder block, you must install the togglers in the
core of the block. To find the correct location on the block:
i
Measure 19 cm (7.5 inches) from one side of the block.
ii
Mark this location on the block.
2
Hold the mounting bracket-and-pipe assembly in position on the mounting
surface (centered on the mark you made if installing the ERU on cinder block).
3
Use a level to verify that the center line of the mounting bracket is perfectly
vertical.
4
Use a pencil or a piece of chalk to mark the positions of the four holes that are
located in the four corners of the mounting bracket.
5
Remove the mounting bracket-and-pipe assembly.
6
Drill a 1/2-inch hole in each of the locations you marked.
7
Install the togglers:
i
Fold one end of the metal channel along the plastic straps.
ii
Hold the metal channel flat against the plastic straps and slide it through the
hole.
iii
Pull the ring so the metal channel rests flush behind the wall.
Materials Tools
Four 1/4-inch -20 x 3-inch machine screws Electric drill with a 1/2-inch masonry bit
Four BB (1/4-inch -20) or equivalent togglers Carpenter’s level
Screwdriver
Hammer
11-mm (7/16-inch) open-end or box-end
wrench or a small adjustable wrench
Pencil or chalk