The CalAmp LMU-4350 LTE CAT1 Full Featured Telematics Gateway is a high-performance device designed for telematics applications that require reliable connectivity, advanced I/O, and GPS tracking capabilities. This article provides a detailed overview of the installation process, configuration settings, compliance requirements, and best practices for deploying the LMU-4350 in both fixed and mobile environments. The instructions and technical details are derived directly from the official documentation and firmware notes provided by CalAmp.
Installation Overview
The installation of the LMU-4350 requires careful planning to ensure that the device is securely mounted, properly connected, and configured for optimal performance. The device is designed for use in both fixed and mobile applications and must be installed in a location that minimizes exposure to moisture, physical damage, and interference with its internal components.
Placement and Mounting
The LMU-4350 should be installed in a secure, stable location within the vehicle or fixed installation. The device must be positioned so that the diagnostic LEDs on the front panel are easily visible for monitoring purposes. Visibility of these LEDs is crucial for troubleshooting and verifying the device’s operational status.
Installers should also ensure that the unit is not located in areas where water or moisture may accumulate, such as below cup holders or near door thresholds. In mobile applications, the device must maintain a minimum separation of 20 cm from users or nearby individuals to comply with EU radio equipment regulations.
Cable Management
Excess cable length should be coiled neatly without crimping or flattening any sections. Cutting cables is strictly prohibited. Proper cable management helps prevent signal interference and ensures the device remains functional and compliant with safety standards.
Power and Antenna Connections
The device must be connected to a stable power source that meets the specified voltage and current requirements. The power consumption of the LMU-4350 is defined as 5.2 PEG2. The internal lithium iron phosphate battery supports backup power functionality in case of temporary outages.
All antenna connections should be verified for signal integrity and proper orientation. The LMU-4350 supports LTE CAT1 connectivity across multiple frequency bands, including Bands 1, 3, 5, 7, 8, 20, 28, and 34. Each band has defined output power, gain, and efficiency metrics that are detailed in the technical specifications.
Configuration and Setup
The configuration process for the LMU-4350 involves setting up I/O mapping, stream settings, wake-up sources, and firmware parameters. These settings determine how the device interacts with external systems and processes incoming data.
I/O Mapping and Wake-Up Sources
The I/O mapping and wake-up sources are critical for defining the device’s behavior in response to external inputs. The LMU-4350 includes a 3-axis accelerometer and a range of input/output (I/O) pins that can be configured for various functions, including motion detection, input triggers, and analog monitoring.
To configure the I/O mapping, users should refer to the Wake Sources table and I/O mapping details in the user manual. These settings are essential for ensuring that the device responds correctly to environmental changes and user-defined thresholds.
Stream Settings and Data Transmission
Stream settings define how data is transmitted from the LMU-4350 to backend systems or servers. The device supports multiple data streams, each with its own port and protocol configuration. The default stream settings must be reviewed and adjusted according to the user’s specific requirements.
Installers should ensure that the device is configured to send data to the correct server using the appropriate IP address and port number. This can be verified using the ATIS command, which displays the current inbound service configuration. For example, the output may appear as:
- srvc(0) log(0:0) radio(0) mode(0:0) inb(0) ddd.ddd.ddd.ddd:<ppppp>
In this example, ddd.ddd.ddd.ddd represents the IP address and <ppppp> the port number. Installers must confirm with a backend technician that these values are correct.
GPS Verification and Troubleshooting
The GPS functionality of the LMU-4350 can be verified using the AT$APP GPS? command. A successful response will include a valid latitude and longitude pair, along with other GPS data such as altitude, heading, speed, and satellite count. For example:
Lat=3304713, Lon=-11727730, Alt=0
Hdg=113 Spd=0 3D-RTIME HDOP=130 nSats=7
Installers should ensure that the GPS receiver has a valid 3D fix within 2–3 minutes. If the device fails to acquire a fix, it may be necessary to contact CalAmp Support for further assistance.
Firmware Conversion from PEG1 to PEG2
Users transitioning from older PEG1 scripts to the updated PEG2 format must follow specific conversion steps. The LMU Manager software provides tools for importing and updating existing configurations. The process includes:
- Creating a new unit using App ID 1033.
- Importing the PEG1 configuration via the
Configuration (*.csv)option. - Updating wake-up sources, ADC references, and stream settings using the I/O mapping and Wake Sources table.
- Saving the script and exporting it in PEG2 format (
*.pg2).
Additional parameters, such as protocol exclusion settings (3332 & 3356), must be configured to ensure compatibility with heavy-duty applications.
Compliance and Regulatory Considerations
The LMU-4350 is designed to meet international regulatory standards, including CE marking, RoHS compliance, and compliance with the Radio Equipment Directive (RED). These certifications ensure that the device is safe for use in both fixed and mobile environments and adheres to environmental and safety guidelines.
CE Marking and EU Directives
The LMU-4350 carries the CE marking, indicating compliance with essential EU safety and performance requirements. The device is certified under the Radio Equipment Directive 2014/53/EU (RED), which governs the use of radio equipment within the European Union. Users must follow the provided instructions for correct installation and operation to maintain compliance.
RoHS and WEEE Compliance
The LMU-4350 is RoHS-compliant, meaning it restricts the use of hazardous substances in its construction. Additionally, the device must be disposed of in accordance with the Waste Electrical and Electronic Equipment (WEEE) Directive. Users are encouraged to follow local regulations for responsible disposal of electronic waste.
EU Declaration of Conformity
CalAmp Inc. has issued an EU Declaration of Conformity for the LMU-4350, affirming that the device meets all relevant EU directives. The declaration is available upon request and must be maintained for regulatory audits. For EU-related inquiries, users may contact CalAmp’s authorized representative in Italy:
LoJack Italy
Via Novara 89, 20153
Milano – Italy
Preventing Unauthorized Modification
To prevent unauthorized access or tampering, installers should take steps to secure the LMU-4350 physically and electronically. This includes:
- Securing the device in a location that is not easily accessible to fleet drivers or other non-technical personnel.
- Using tamper-resistant mounting solutions.
- Configuring access controls and password protections for device settings.
Unauthorized modifications can compromise data integrity, safety, and regulatory compliance. It is important to implement safeguards that align with organizational security policies.
Troubleshooting and Support
In the event of operational issues, installers should first check the status LEDs to identify potential problems. Common issues include:
- GPS signal loss
- Data transmission failures
- Power supply irregularities
- Connectivity issues with external devices
If the issue persists, installers should contact CalAmp Support at [email protected] for further assistance. Technical support is available for diagnostic testing, firmware updates, and configuration adjustments.
Conclusion
The CalAmp LMU-4350 LTE CAT1 Full Featured Telematics Gateway is a versatile and powerful device suitable for a wide range of telematics applications. Proper installation, configuration, and compliance with regulatory standards are essential for ensuring reliable performance and data integrity. By following the guidelines outlined in this article, users can maximize the functionality of the LMU-4350 while maintaining safety, security, and regulatory compliance.