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CalAmp Protocol (Port 5082) Tracking Devices: Setup & Comparison
CalAmp devices are industry leaders in telematics, utilizing the robust Puls air interface. Most units default to port 5082 for data transmission. This guide covers technical specifications, wiring instructions, and remote configuration commands for the LMU, TTU, and ATU series.
Model Comparison Table
| Model Series | Common Hardware | Primary Use Case | Key Feature |
|---|---|---|---|
| LMU-3030 | CalAmp | Light Duty / Passenger | Plug-and-play OBD-II interface |
| LMU-2600 Series | CalAmp | Fleet Tracking | Advanced I/O for sensors/relays |
| LMU-4200 Series | CalAmp | Heavy Duty / First Responders | High-speed mobile broadband gateway |
| TTU-700/1200/2820 | CalAmp | Trailer & Asset Tracking | Internal long-life battery |
| ATU-620 | CalAmp | Equipment Tracking | Weatherproof (IP66) enclosure |
Technical Wiring Diagram (Standard 3-Wire)
Most hardwired CalAmp LMU units (like the 2600/3600 series) utilize a 3-wire power connection. Proper installation is critical for ignition-based reporting.
- RED (Pin 14/20): Constant Power (+12V/24V). Connect directly to a battery source.
- BLACK (Pin 1/15): Chassis Ground. Connect to a solid metal grounding point.
- WHITE (Pin 8/20): Ignition Sense. Connect to a source that is ONLY powered when the engine is running.
Note: Always use a 3-amp to 5-amp inline fuse on the red power lead.
Essential SMS Configuration Commands
CalAmp units can be configured remotely using SMS. Commands must start with a “!” and do NOT use quotes around parameters when sent via SMS.
1. APN & Network Setup
!RP,2314,0,[Username]
!RP,2315,0,[Password]
2. Server IP and Port (32-bit LMU)
!RP,769,0,[Port_Number]
3. Device Management
Check Status (GPS/Comm): !R0
Force Maintenance Sync: !R3,49,129
Conclusion
By correctly wiring the 3-wire harness and using SMS commands for remote configuration, you can effectively manage any CalAmp protocol device. For port settings, ensure your server is listening for UDP traffic on port 5082 to decode Puls data packets correctly.
