SAN Telequip’s Industrial MQTT Gateways bridge legacy field devices and IIoT cloud platforms by converting Modbus RTU/ASCII or serial data into MQTT protocol over 4G LTE, Wi-Fi, or Ethernet. These rugged DIN-rail units feature integrated Analog and Digital I/Os, a built-in TCP/IP stack with automatic network recovery, and 8MB of local data logging to prevent data loss during connectivity drops. They support secure communication with centrally hosted brokers, featuring configurable publish/subscribe topics and a wide operating temperature range of -25°C to 80°C.