Teltonika TRB142 – Industrial 4G LTE Gateway with RS232 for IoT and Automation

The TRB142 is an industrial LTE gateway with RS232 serial interface, designed for remote device management and M2M connectivity in industrial IoT networks. It is deployed in automation systems, telemetry infrastructure, and remote installations where RS232 serial communication must be bridged to LTE Cat 1 mobile connectivity without reliance on fixed-line networks.

The LTE Cat 1 modem delivers stable mobile data connectivity for industrial applications with moderate bandwidth requirements. The RS232 interface — one of the most widely adopted serial communication standards — enables direct integration of a broad range of existing equipment without additional adapters. The OpenWRT-based software platform provides significant flexibility for customisation and integration into site-specific workflows.

The gateway includes a comprehensive feature set for secure remote administration: SMS control, VPN, IPsec, and firewall. A wide input voltage range simplifies deployment at industrial sites with non-standard power supplies. Native integration with the Teltonika RMS platform enables centralised monitoring and configuration of distributed device fleets, while FOTA support eliminates on-site visits for firmware updates.

Recommended for industrial systems with legacy RS232 equipment, telemetry and smart metering nodes, off-grid locations without fixed internet access, and IoT deployments requiring remote management over LTE. The ruggedised construction and power supply flexibility make it suitable for demanding physical environments.