Maintenance Guide

Tools and Materials
The tables in "Tools and Materials" above show the recommended tools and materials you
need to successfully install the CMIU.
Some items may not apply to your specific installation, or the list may not contain all
required tools or materials.
Site Selection
Installation and operation in moderate temperatures increase reliability and product life. For
more information, see "Environmental" on page4.
Always follow your company's safety practices and installation guidelines when installing a
CMIU. Never perform an installation during a lightning storm or under excessively wet
conditions.
Follow these guidelines when selecting a location to install the CMIU.
l Select a location where there is no chance that another object can be set over the
antenna.
l Avoid installing the CMIU behind metal fences or walls.
l Make sure the pit location gives adequate room for installing both the CMIU and the pit
antenna.
l Install the pit antenna above the lid in low traffic areas, as illustrated below, for maximum
performance.
Figure 26 – Antenna Placement for Low Traffic Areas
24 Cellular MIU (CMIU™) Pit and Wall Installation and Maintenance Guide
Chapter 5: Pit Installation