The industrial 4G routers range from the entry-level model with pure 4G routing function up to the upper class with additional WLAN, multiple GLAN, PoE, GPS, GPIO, RS232/485 and SD card. The more powerful models also offer the option of integrating user apps via an SDK for Python and support for Modbus RTU/TCP. This converts the router into a fully functional IoT Edge gateway. All models provide a dual SIM card interface with automatic "fail over", support for various VPN connections (OpenVPN, IPsec, PPTP, ...) and extensive management options (Web, CLI, ...).
We recommend that the SIM cards and IP services are provided by a professional partner, especially when it comes to the professional use of mobile devices in M2M, IoT/I4.0 or remote maintenance applications.