eSAM is a compact, durable 4G LTE router designed for industrial M2M/IoT applications. It includes one LAN port and an RS232 or RS485 port, enabling real-time data connectivity even in challenging environments. The eSAM ensures secure and reliable communication with industrial controllers, retail terminals, and process automation equipment at third-party or remote sites. This plug-and-play solution helps operators minimize downtime, reduce service costs, and accelerate the process of bringing distributed locations online, ultimately increasing revenue.