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LMU-3xx Hardware & Installation Guide - PULS Wiki
https://puls.calamp.com/wiki/LMU-3xx_Hardware_%26_Installation_Guide
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software. Such examples could include instant messaging between vehicles or a central office, in-vehicle
mapping or driving directions, email or database access. In most of these cases you will be using the LMU-
3xx™ as a wireless modem as well as a vehicle-location device.
2.2.3 LM Direct™ Server
LM Direct™ is a CalAmp proprietary message interface specification detailing the various messages and their
contents the LMU-3xx™ is capable of sending and receiving. This interface allows System Integrators to
communicate directly with LMU-3xx's™. Please refer to the LM Direct Reference Guide for details.
2.2.4 Backend Software
Backend software is a customer provided software application. Regardless of its purpose, one of its primary
functions is to parse and present data obtained from the LM Direct™ server. This allows the application to do
any of the following:
Display location database on reports received from the LMU-3xx™ in a variety of formats
Present historic information received from the LMU-3xx™, typically in a report/chart style
format
Request location updates from one or more LMU-3xxs™
Update and change the configuration of one or more LMU-3xxs™
2.2.5 PULS™
PULS™ (Programming, Update and Logistics System) is CalAmp’s web-based maintenance server offering
out-of-the-box hands free configuration and automatic post-installation upgrades. PULS™ provides a means
for configuration parameters, PEG scripts, and firmware to be updated Over-The-Air (OTA) and allows
CalAmp customers to monitor unit health status across your customers’ fleets to quickly identify issues before
they become expensive problems.
2.2.6 LMU Manager™
LMU Manager is the primary configuration tool in the CalAmp system. It allows access to almost every
feature available to the LMU-3xx™. Unlike the backend software, it has the option of talking directly to an
LMU-3xx™ or making a request forwarded by the LM Direct™ server.
For further details on using LMU Manager, please refer to the LMU Manager Users Guide.
3 Hardware Overview
3.1 Location Messaging Unit-LMU-3xx™
