User's Manual
Table Of Contents
- Important Safety Instructions
- Overview
- The ERU assembly
- Do you have everything?
- Safety precautions
- Introduction
- Installing the ERU
- Installation overview
- Installation guidelines and requirements
- Estimating cable requirements
- Assembling the mounting bracket and pipe
- Installing the ERU on solid wood or lap siding
- Installing the ERU on brick or poured concrete
- Installing the ERU on a cinder-block or hollow wall
- Installing the ERU under the eaves
- Installing the ERU on a roof
- Attaching the ERU to the mounting assembly
- Routing and grounding the exterior cables
- Routing cable to the SOMAport
- Troubleshooting

32
External Radio Unit Installation Guide
7
Hold the mounting bracket-and-pipe assembly over the holes so that the long
end of the pipe points straight up.
8
If the mounting bracket spans two pieces of siding, use a spacer.
The mounting bracket should be positioned so that most of it is on the top board. A
spacer should be installed to help hold the bottom of the mounting bracket in
place. The spacer can be made of either solid wood or plastic.
9
Insert a 5/16-inch x 2-inch lag screw in each of the holes to attach the mounting
bracket to the wall.
10
Tighten the screws to secure the mounting bracket-and-pipe assembly to the
wall.
11
Attach the ERU to the mounting assembly as described in the section
“Attaching the ERU to the mounting assembly” on page 44.
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