Description
CalAmp LMU-2650MB Sealed — LTE Cat-M1 Rugged Asset Telematics Gateway with IP67 Protection & EdgeCore Intelligence
The CalAmp LMU-2650MB Sealed is a rugged LTE Cat-M1 cellular telematics gateway purpose-built for sensor-rich asset intelligence, fleet tracking, powered equipment monitoring, vehicle security, industrial assets, and demanding IoT deployments. It combines multi-constellation GNSS, Bluetooth Low Energy 5.2, comprehensive 12-wire I/O, serial and 1-Wire connectivity, a three-axis accelerometer, PEG2™ programmable intelligence, EdgeApp support, EdgeCore firmware, and an 1100 mAh LiFePO₄ backup battery inside a sealed IP67-rated enclosure. (CalAmp)
Unlike the standard 24-pin LMU-2650MB, this version is specifically designed for harsh and exposed environments. Its sealed enclosure and 12-wire captive harness provide increased resistance to dust, water and vibration while retaining the processing, connectivity and edge-computing capabilities of the LMU-2650 platform. CalAmp describes it as a cellular gateway purpose-built for sensor-rich asset intelligence. (CalAmp)
Advanced Multi-Constellation GNSS Asset Location
The LMU-2650MB Sealed incorporates a 55-channel hybrid GNSS receiver supporting GPS, GLONASS, BeiDou, Galileo and QZSS. CalAmp specifies approximately 2.5-meter CEP open-sky location accuracy, providing precise positioning for commercial vehicles, equipment and powered assets. (CalAmp)
GNSS tracking sensitivity is rated at -163 dBm, with acquisition sensitivity of -155 dBm for hot starts and -148 dBm for cold starts. The device supports position updates at rates of up to 5 Hz and is Assisted GPS (AGPS) capable. (CalAmp)
These capabilities make the LMU-2650MB Sealed suitable for applications involving real-time asset location, trip history, route monitoring, geofencing, fleet utilization, equipment movement, theft recovery and event-driven telematics reporting.
Global LTE Cat-M1 Connectivity with GSM Fallback
The LMU-2650MB Sealed provides broad LTE Cat-M1 cellular connectivity. CalAmp specifies LTE bands:
B1 / B2 / B3 / B4 / B5 / B8 / B12 / B13 / B18 / B19 / B20 / B25 / B26 / B28 / B39. (CalAmp)
The platform also supports GSM 850/900/1800/1900 MHz fallback, providing additional connectivity options in regions where compatible legacy service remains available. (CalAmp)
The cellular, GNSS and Bluetooth antennas are all internally integrated, eliminating the need for separate external antenna assemblies and simplifying installation on vehicles and equipment. The cellular service interface uses an internal 2FF SIM. (CalAmp)
Rugged 12-Wire Captive Harness
A major distinction between this model and the standard 24-pin LMU-2650MB is the 12-wire captive harness.
CalAmp specifies the following wired interfaces:
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1 fixed-bias ignition input
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2 configurable digital inputs
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3 digital outputs
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1 analog input
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1 1-Wire® interface
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1 TTL serial interface
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12/24 VDC power and ground
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1 internal USB interface (CalAmp)
The two digital inputs support selectable high- or low-bias operation across 0–32 VDC, while the three digital outputs are 150 mA open-collector relay-driver outputs. The general-purpose analog input supports 0–32 VDC. (CalAmp)
This combination allows appropriately engineered installations to monitor or interact with ignition circuits, switches, sensors, relays and other vehicle or equipment systems.
Serial & USB Connectivity
The LMU-2650MB Sealed incorporates a 2-wire TTL Tx/Rx serial interface for integration with compatible peripherals and accessories. An internal USB interface is also provided. (CalAmp)
These interfaces expand the gateway beyond basic GPS tracking by allowing external equipment and peripherals to become part of a larger telematics architecture.
This capability is especially useful in industrial and fleet deployments where the gateway may need to collect information from a dedicated sensor, controller or other compatible external device.
1-Wire® Peripheral Integration
A dedicated 1-Wire® 1-bit bus provides another interface for compatible peripheral devices. (CalAmp)
Combined with the digital inputs, analog input, TTL serial connection, BLE and EdgeCore processing environment, 1-Wire helps make the sealed LMU-2650MB an expandable sensor and asset-intelligence gateway rather than simply a location-reporting device.
Bluetooth Low Energy 5.2
The LMU-2650MB Sealed provides integrated Bluetooth Low Energy 5.2, with the BLE antenna located internally. (CalAmp)
BLE connectivity allows compatible nearby sensors, peripherals and mobile applications to communicate wirelessly with the gateway. This can reduce the need to physically wire every supported sensor to the telematics device.
CalAmp specifically emphasizes the platform's ability to simplify integration of third-party sensors and peripherals and interface with mobile applications through its EdgeCore architecture. (CalAmp)
This makes BLE particularly valuable for applications involving sensor-rich equipment, cargo monitoring, wireless identification, environmental sensing and specialized industrial IoT deployments.
Advanced Driver Behavior & Motion Detection
The LMU-2650MB Sealed incorporates an integrated three-axis accelerometer.
CalAmp identifies the sensor for:
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Driver-behavior monitoring
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Impact detection
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Motion sensing
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Tilt detection (CalAmp)
Because the accelerometer is integrated directly into the gateway, no external motion sensor is required for these capabilities.
When combined with GNSS location and programmable edge intelligence, accelerometer information can provide valuable operational context surrounding vehicle or equipment movement.
Remote Safety Lockout & Asset Security
CalAmp specifically identifies remote safety lockout as a capability of the sealed LMU-2650MB platform. The gateway can be incorporated into appropriately engineered systems designed to disable vehicles or equipment and remotely support theft detection and stolen-vehicle recovery. (CalAmp)
Combined with GNSS location, ignition monitoring, motion sensing, programmable outputs and backup battery power, this capability allows the LMU-2650MB Sealed to become part of a broader vehicle or equipment security architecture.
Any immobilization or remote-control functionality should be professionally engineered for the specific vehicle or equipment and deployed with appropriate operational and safety controls.
EdgeCore Firmware
The LMU-2650MB Sealed runs CalAmp EdgeCore firmware on the ThreadX real-time operating system. (CalAmp)
CalAmp describes EdgeCore as a secure, reliable and scalable platform that provides access to its EdgeApp development capabilities. The architecture allows developers to:
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Run compute-intensive applications locally on telematics hardware
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Address latency-sensitive applications
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Protect proprietary intellectual property
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Develop new device functionality
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Interface with mobile applications
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Integrate third-party sensors and peripherals (CalAmp)
This makes the LMU-2650MB Sealed particularly suitable for deployments requiring custom processing directly on the telematics gateway, rather than sending all raw information to a remote server for analysis.
PEG2™ Programmable Edge Intelligence
The gateway incorporates PEG2™ programmable device-behavior logic for intelligent event processing. (CalAmp)
PEG2 allows supported operating conditions to be evaluated locally by the device. Application logic can incorporate information from sources such as GNSS location, ignition state, motion, digital inputs, analog signals and connected peripherals.
Processing significant events locally can reduce unnecessary cellular traffic, improve response time and allow a telematics deployment to report information according to application-specific rules.
EdgeApp SDK Custom Application Support
For deployments requiring capabilities beyond configurable PEG2 logic, CalAmp provides EdgeApp SDK support for developing custom applications and features directly on the edge device. (CalAmp)
The sealed LMU-2650MB provides substantial hosted-application resources:
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3 MB program flash
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14 MB file system
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60 MB RAM (CalAmp)
This is a notable distinction from a conventional GPS tracker. The available memory and application framework allow the LMU-2650MB Sealed to operate as an intelligent IoT gateway capable of running specialized functionality locally.
1100 mAh LiFePO₄ Backup Battery
The LMU-2650MB Sealed incorporates an 1100 mAh Lithium Iron Phosphate (LiFePO₄) internal backup battery. (CalAmp)
CalAmp highlights LiFePO₄ battery technology for its combination of longer lifespan, improved safety, lighter weight, and improved discharge and charging efficiency. (CalAmp)
The internal battery provides continued device power when the vehicle or equipment's primary electrical source is interrupted, making it particularly valuable for asset security, power-disconnection detection and theft-recovery applications.
CalAmp specifies a battery charging-temperature range of 0°C to +45°C. (CalAmp)
Low-Power Vehicle & Equipment Operation
Despite its cellular, GNSS, BLE, sensor and edge-processing capabilities, the LMU-2650MB Sealed provides low-power operating modes designed to reduce electrical load on the host asset.
CalAmp specifies typical consumption of:
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Less than 500 µA at 12 V in low-power sleep
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Approximately 25 mA at 12 V during radio-active sleep
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Approximately 50 mA at 12 V during GPS tracking with cellular idle (CalAmp)
Low-power sleep is especially valuable for vehicles and equipment that may remain parked or unused for extended periods.
12/24-Volt Electrical Architecture
The LMU-2650MB Sealed is designed for both 12 V and 24 VDC vehicle electrical systems.
CalAmp specifies:
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9–30 VDC during startup and normal operation
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7–32 VDC for momentary operation (CalAmp)
This broad voltage range makes the gateway suitable for many passenger vehicles, commercial fleets, service vehicles and powered-equipment applications.
Rugged IP67 Sealed Enclosure
One of the defining features of this LMU-2650MB configuration is its IP67-rated sealed enclosure.
CalAmp states that the unit is built for harsh and exposed environments and is designed to withstand dust, water, vibration and extreme operating conditions. (CalAmp)
This environmental protection is the primary differentiator from the standard in-cab LMU-2650MB and makes the sealed model substantially more appropriate for equipment and installation locations where exposure to environmental contaminants is possible.
CalAmp specifies:
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-30°C to +60°C while connected to primary power
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-20°C to +60°C while operating on the internal battery
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-20°C to +25°C for up to six months for long-term storage with battery
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Up to 85% relative humidity at +50°C, non-condensing (CalAmp)
Fleet-Grade Shock, Vibration & ESD Protection
The LMU-2650MB Sealed is engineered for professional mobile and industrial environments.
Shock and vibration performance references:
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MIL-STD-202G
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MIL-STD-810F
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SAE J1455
Electrostatic-discharge performance is specified to IEC 61000-4-2 with a 4 kV test level. (CalAmp)
These environmental specifications complement the IP67 enclosure and make the sealed platform particularly appropriate for demanding asset and equipment deployments.
Flexible Installation Options
Despite its rugged construction, CalAmp designed the LMU-2650MB Sealed to accommodate multiple deployment methods.
CalAmp identifies wired, OBD-II and cigarette-lighter power harness options for ready-to-use device installation. (CalAmp)
This flexibility allows the same platform to address permanent hardwired installations as well as applications where a less invasive power connection is appropriate.
Integrated Wireless Antennas & Status Indicators
The cellular, GNSS and BLE antennas are all internal, simplifying installation and helping maintain the integrity of the sealed enclosure. (CalAmp)
The unit provides two integrated status LEDs for:
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GPS/GNSS
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Cellular connectivity (CalAmp)
These indicators assist technicians during installation, commissioning and troubleshooting.
Remote Device Management & OTA Updates
The LMU-2650MB Sealed supports CalAmp Device Management, allowing organizations to remotely manage, configure and deploy over-the-air software updates to connected assets at scale. (CalAmp)
Remote management is particularly valuable for geographically distributed fleets because routine configuration and software-management tasks can be performed without physically accessing every deployed gateway.
CalAmp Telematics Cloud Integration
The device also supports CalAmp Telematics Cloud, which CalAmp describes as enabling telematics data to be streamed into proprietary systems using flexible API integration. (CalAmp)
This allows LMU-2650MB Sealed data to become part of larger fleet-management, asset-management, reporting, analytics and enterprise IoT platforms.
For solution providers, API integration provides a path for incorporating the hardware into proprietary software applications rather than requiring the LMU-2650MB to operate as an isolated tracking device.
Regulatory & Industry Certifications
CalAmp currently lists the LMU-2650MB Sealed with:
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FCC
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IC
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PTCRB
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RoHS
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CE — pending (CalAmp)
Certification and carrier requirements should always be verified against the exact regional SKU being deployed.
Key Technical Features
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LTE Cat-M1 cellular connectivity
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LTE bands B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B25/B26/B28/B39
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GSM 850/900/1800/1900 MHz fallback
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Hybrid GPS, GLONASS, BeiDou, Galileo and QZSS GNSS
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55-channel GNSS receiver
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Approximately 2.5 m CEP open-sky positioning accuracy
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-163 dBm GNSS tracking sensitivity
-
-155 dBm hot-start acquisition sensitivity
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-148 dBm cold-start acquisition sensitivity
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Up to 5 Hz location updates
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Assisted GPS support
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Internal cellular, GNSS and BLE antennas
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Bluetooth Low Energy 5.2
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Integrated 12-wire captive harness
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One fixed-bias ignition input
-
Two configurable 0–32 VDC digital inputs
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Three 150 mA open-collector digital outputs
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One general-purpose 0–32 VDC analog input
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One 1-Wire® interface
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One TTL Tx/Rx serial interface
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One internal USB interface
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Built-in three-axis accelerometer
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Driver-behavior monitoring
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Impact detection
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Motion sensing
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Tilt detection
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Remote safety-lockout support for appropriately engineered installations
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ThreadX real-time operating system
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CalAmp EdgeCore firmware
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PEG2™ programmable device behavior
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EdgeApp SDK custom application development
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3 MB program flash
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14 MB file-system storage
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60 MB RAM
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1100 mAh LiFePO₄ internal backup battery
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Typical low-power sleep consumption below 500 µA at 12 V
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12/24 VDC vehicle-system compatibility
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9–30 VDC startup and normal operating range
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7–32 VDC momentary operating range
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Internal 2FF SIM
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Two GPS/cellular status LEDs
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IP67 ingress protection
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Primary-power operating temperature: -30°C to +60°C
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MIL-STD-202G, MIL-STD-810F and SAE J1455 referenced environmental testing
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IEC 61000-4-2 4 kV ESD specification
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Remote Device Management and OTA updates
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CalAmp Telematics Cloud API integration
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FCC, IC, PTCRB and RoHS certifications; CE listed as pending (CalAmp)
Ideal Applications
The CalAmp LMU-2650MB LTE Cat-M1 Sealed is particularly well suited for commercial fleet tracking, service vehicles, powered asset monitoring, construction and industrial equipment, equipment rental fleets, vehicle and equipment security, theft recovery, asset utilization, driver-behavior monitoring, sensor-rich IoT deployments, remote equipment monitoring and custom edge-computing applications. CalAmp categorizes the sealed LMU-2650MB for both passenger/commercial vehicles and industrial equipment. (CalAmp)
Its combination of LTE Cat-M1 connectivity, five-constellation GNSS, BLE 5.2, flexible 12-wire I/O, TTL serial and 1-Wire interfaces, three-axis motion sensing, PEG2 programmable logic, EdgeApp custom applications, 60 MB RAM, an 1100 mAh LiFePO₄ backup battery and IP67 environmental protection makes the LMU-2650MB Sealed especially appropriate where an installation requires the intelligence and extensibility of an advanced telematics gateway together with significantly greater environmental protection than a conventional in-cab tracker. (CalAmp)
CalAmp LMU-2650MB LTE Cat-M1 Sealed — Official Product Specifications
SKU DESCRIPTION: LMU2650, CATM, BG96, BLE, INT ANT, SEALED, 1100MAH BATT, 12-WIRE-2.5M, GEN-HW
