User's Manual

1/28/2015 LMU42x0Hardware&InstallationGuidePULSWiki
https://puls.calamp.com/wiki/LMU42x0_Hardware_%26_Installation_Guide 5/47
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
42x0™.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42x0™.
2.2.2LMU42x0™
TheLMU42x0™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42x0™
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