10/12/13
LMU-3xx Hardware & Installation Guide - PULS Wiki
https://puls.calamp.com/wiki/LMU-3xx_Hardware_%26_Installation_Guide
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Basic System Architecture
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 LMU-
3xx™. 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 LMU-3xx™.
2.2.2 LMU-3xx™
The LMU-3xx™ 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 LMU-3xx™
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