Teltonika TRM142 Industrial Rugged Cellular LTE 4G USB RS232 Modem
Compact Industrial LTE Cat 4 Modem for Legacy RS232 & IoT Connectivity
The Teltonika TRM142 is a compact industrial-grade 4G LTE Cat 4 modem designed to modernise legacy serial equipment with reliable high-speed cellular connectivity. Featuring both RS232 and USB interfaces, rugged aluminium construction, and industrial-grade reliability, the TRM142 is ideal for industrial automation, telemetry, smart utilities, alarm systems, remote monitoring, and IoT deployments.
According to the official Teltonika product flyer and datasheet, the TRM142 enables seamless integration between legacy RS232 devices and modern LTE networks, making it an efficient and cost-effective upgrade solution for industrial systems.
Key Features
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Reliable LTE Cat 4 Connectivity
Supports fast and stable 4G LTE communication with fallback to 3G and 2G networks.
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RS232 & USB Interfaces
Connect legacy serial devices and modern systems simultaneously for maximum flexibility.
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Designed for Legacy Equipment Upgrades
Perfect for alarm systems, legacy controllers, telemetry devices, and industrial serial equipment.
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Compact Industrial Design
Rugged anodized aluminium housing suitable for harsh industrial environments.
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USB Virtual Network Interface
Simplifies network integration through micro-USB connectivity.
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Industrial Operating Temperature
Reliable operation from -40°C to +75°C.
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RMS Remote Management Support
Compatible with Teltonika RMS for remote configuration, monitoring, FOTA updates, and alerts.
Why Choose the Teltonika TRM142?
The TRM142 is ideal for deployments requiring:
- Legacy RS232 equipment connectivity
- Industrial LTE modem integration
- Remote telemetry communications
- Compact embedded LTE solutions
- Alarm system upgrades
- Industrial automation networking
- Rugged low-power operation
- Cost-effective 4G retrofitting
Its simple deployment and legacy-ready architecture make it an excellent solution for extending the life of older industrial equipment.
Typical Applications
- Industrial automation systems
- Alarm & security systems
- Legacy PLC connectivity
- SCADA telemetry systems
- Remote monitoring equipment
- Smart utility systems
- Transportation & fleet systems
- Kiosks & retail equipment
- Environmental monitoring
- Industrial IoT gateways
Technical Highlights
Cellular Connectivity
- 4G LTE Cat 4
- LTE FDD up to:
- 150 Mbps download
- 50 Mbps upload
- LTE TDD up to:
- 130 Mbps download
- 30 Mbps upload
- 3G and 2G fallback support
- 3GPP Release 9 modem
Interfaces
- 1 × RS232 DB9 connector
- RTS/CTS flow control support
- 1 × Micro USB interface
- Virtual network interface via USB
SIM Features
- 1 × Mini SIM slot (2FF)
- Supports 1.8 V / 3 V SIM cards
Antenna
- 1 × SMA mobile antenna connector
Status LEDs
- Power LED
- Network LED
- Mobile LTE LED
Power
- 9–30 VDC industrial input
- Overvoltage protection
- Reverse polarity protection
- Surge protection
- Idle consumption: < 1 W
- Maximum consumption: < 5 W
Software & Driver Support
Supports:
- Windows Connection Manager
- Linux Modem Manager
- Windows 7/8/8.1/10/11
- Linux kernel 2.6–6.3
- Android 4.x–13
- NDIS Driver
- RIL Driver
- GNSS Driver
Physical Specifications
- Anodized aluminium housing
- Dimensions: 75.9 × 25 × 74.5 mm
- Weight: 135 g
Mounting Options
- DIN rail mounting
- Wall mounting
- Flat surface mounting
Operating Environment
- Operating temperature: -40°C to +75°C
- IP30 rated
- 10%–90% non-condensing humidity
Resources:
Teltonika TRM142 Flyer
Teltonika TRM142 Datasheet
Teltonika TRM142 Quick User Guide
Teltonika TRM142 User Guide
Teltonika TRM142 3D Models
