2.2 Component Descriptions
2.2.1 Wireless Data Network
The Wireless Data Network provides the information bridge between the LM Direct™ server and the
4530™. Wireless data networks can take a variety of forms, such as cellular networks, satellite
systems or local area networks. Contact the CalAmp sales team for the networks available to the
4530™.
2.2.2 4530™
The 4530™ is responsible for delivering the location and status information when and where it is
needed. Data requests mainly come from the following sources:
PEG™ script within the 4530™
A location or status request from the LM Direct™ server
A location or status request from LMU Manager
An SMS request made from a mobile device such as a customer’s cell-phone
In some cases, it is necessary to run an application in the vehicle while it is being tracked by the
backend 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 4530™ as a wireless modem as well as a vehicle-location device.
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2.2.3 LM Direct™ Server
LM Direct™ is a CalAmp proprietary message interface specification detailing the various messages
and their contents the 4530™ is capable of sending and receiving. This interface allows System
Integrators to communicate directly with 4530'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 4530™ in a variety of formats
