CalAmp LMU-5541 Hardware Installation Manual

Also see for LMU-5541: Hardware and installation guide

CalAmp LMU-5541 Hardware Installation Manual Manual pdf 2 page image

something meaningful with that information. This could include displaying the vehicle location on a map, performing an address look-up,providing real-time driving directions, updating the vehicles ETA, monitoring vehicle and driver status or dispatching the vehicle to its nextpick up.These functions, of course, are completely dependent on the capabilities of the vehicle management application. The role of the CalAmp LMU-5541™ is to deliver the location information when and where it is needed.A typical fleet management system based on a CalAmp device includes the following components:A wireless data networkAn LMU-5541™Host Device (GPS NMEA only)An LM Direct™ communications serverBackend mapping and reporting software which typically includes mapping and fleet reporting functionsPULS™LMU Manager™1.3 About CalAmpLMU-5541 Hardware & Installation GuideBasic System Architecture2.2 Component Descriptions2.2.1 Wireless Data NetworkThe Wireless Data Network provides the information bridge between the LM Direct™ server and the LMU-5541™. Wireless data networks cantake a variety of forms, such as cellular networks, satellite systems or localarea networks. Contact the CalAmp sales team for the networks available to the LMU-5541™.2.2.2 LMU-5541™The LMU-5541™ is responsible for delivering the location and status information when and where it is needed. Data requests mainly come fromthe following sources:PEG™ script within the LMU-5541™A location or status request from the LM Direct™ serverA location or status request from LMU ManagerAn SMS request made from a mobile device such as a customer’s cell-phoneIn some cases, it is necessary to run an application in the vehicle while it is being tracked by the backend software. Such examples could includeinstant messaging between vehicles or a central office, in-vehicle mapping ordriving directions, email or database access. In most of these cases you will be using the LMU-5541™ as a wireless modem as well as a vehicle-location device.2.2.3 LM Direct™ ServerLM Direct™ is a CalAmp proprietary message interface specification detailing the various messages and their contents the LMU-5541™ iscapable of sending and receiving. This interface allows System Integrators tocommunicate directly with LMU-5541's™. Please refer to the LM Direct Reference Guide for details.LMU-5541 Hardware & Installation Guide4/492.2.4 Backend SoftwareBackend software is a customer provided software application. Regardless of its purpose, one of its primary functions is to parse and present dataobtained from the LM Direct™ server. This allows the application to do anyof the following:Display location database on reports received from the LMU-5541™ in a variety of formats Presenthistoric information received from the LMU-5541™, typically in a report/chart style formatRequest location updates from one or more LMU-5530s™Update and change the configuration of one or more LMU-5530s™2.2.5 PULS™PULS™ (Programming, Update and Logistics System) is CalAmp’s web-based maintenance server offering out-of-the-box hands freeconfiguration and automatic post-installation upgrades. PULS™ provides a means forconfiguration parameters, PEG scripts, and firmware to be updated Over-The-Air (OTA) and allows CalAmp customers to monitor unit healthstatus across your customers’ fleets to quickly identify issues before theybecome 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-5541™.Unlike the backend software, it has the option of talking directly to anLMU-5541™ 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 Overview3.1 Location Messaging Unit-LMU-5541™3.1.1 LMU-5541™ Handling PrecautionsElectrostatic Discharge (ESD)Electrostatic discharge (ESD) is the sudden and momentary electric current that flows between two objects at different electrical potentials causedby direct contact or induced by an electrostatic field. The term is usuallyused in the electronics and other industries to describe momentary unwanted currents that may cause damage to electronic equipment.ESD Handling PrecautionsESD prevention is based on establishing an Electrostatic Protective Area (EPA). The EPA can be a small working station or a largemanufacturing area. The main principle of an EPA is that there are no highly charging