The Teltonika TRB145 is an Industrial LTE Cat 1 Gateway Board with RS485 Interface, Digital Inputs/Outputs, and micro-USB port. Its compact design is ideal for remotely controlling a single device over an RS485 interface. Specifically designed for Industrial use, the TRB145 offers a variety of software features, including SMS control, Firewall, Open VPN, IPsec, RMS, and FOTA support.