CalAmp TTU-2830, Руководство по установке оборудования, Страница: 11 / 22

4 Installing the LMU
The installation of the LMU and its antennas can have a major impact on the LMU’s
performance. It is recommended that installers be familiar with the installation of GPS and
cellular devices and are comfortable in a vehicle environment.
4.1 Preparing for Installation
Be sure you have received all the LMU components you need. This must include:
•
The LMU to be installed
•
A power harness
•
GPS Antenna (for external devices)
•
Comm Antenna (for external devices)
•
Optional Components:
•
Input and output cables
4.2 Plan The Installation
Verify Power, Ground and Ignition. Be sure to check each source (power, ground and
ignition) to ensure that the proper signaling exists. This is typically accomplished with a
multi-meter.
Before drilling any holes or running any wires, decide where each hardware component
will be located (LMU, antennas, peripherals, etc.). Be sure that the cables to the LMU are
not bent or constricted in any way. Also make sure that the LMU is kept free from direct
exposure to the elements (sun, heat, rain, moisture etc...).
Be advised that an installation that violates the environmental specifications of the
LMU will void the warranty.
The best way to ensure a trouble-free installation is to consider your options and make
some decisions before you start. Take a look at the vehicle and determine how to best
install the LMU for the following purposes:
•
Accurate data gathering and simulation of how customers actually use your
solution
•
Ongoing monitoring and maintenance of LMU equipment
•
Accidental or intentional alteration of the equipment or cable connections
The following sections cover some of the issues to consider when planning your LMU
installation.