OT gateway NIAC by Jimber is a network isolation device designed for isolating one or two devices in industrial environments. It functions as part of Jimber's cybersecurity solutions, specifically tailored for operational technology (OT) security. The NIAC (Network Isolation Access Controller) connects and secures OT equipment such as printers and scanners within a network. It operates as part of Jimber's Zero Trust Network Isolation solution, restricting access to these devices by default to enhance network security.