About cellular modems at Digi

A cellular modem is a telecommunications hardware component that acts as an interface between digital devices and cellular networks. It consists of both hardware and firmware elements that manage the modulation and demodulation of data, enabling transmission over various cellular standards, including 3G, 4G, LTE, and 5G. Typically, cellular modems feature processing units and communication ports - like USB, Ethernet, HDMI, and serial ports - to facilitate connectivity and are often integrated into devices such as routers, mobile hotspots, and IoT devices. For your IoT ecosystem, this means that your router is equipped with a cellular modem that will efficiently and reliably route data from connected devices to the cloud or other endpoints, ensuring uninterrupted data transmission and connectivity.

Digi devices have either an internal or external plug-in cellular modem modules, which vary in their specifications. The cellular modem for your device runs its own firmware and should be updated as new versions become available. Make sure to review Before you begin a cellular modem firmware update as the methods for how you can update depend on the DAL OS firmware running on your devices.