Digi's Industrial serial servers, including the Digi Connect EZ 4-I, provide expanded environmental options. With 1 to 4 EIA-232 or MEI (232/422/485 selectable) serial ports, these devices cater to various needs. They support industrial protocols like Modbus, and leverage Digi's RealPort driver for seamless connectivity through existing applications. Additionally, they facilitate TCP or UDP socket connections, ensuring versatile compatibility. Enhanced security is ensured through TLS, SSL, or SSH-based connections.