The ICI Interlock Control Interface is a purpose-built hardware module for high-integrity interlock management in particle beam systems. It accepts multiple hard and soft interlock input channels, implements safety-rated relays and opto-couplers to quickly interrupt beam enable and current command signals, and integrates seamlessly with Ethernet-based diagnostics and monitoring. With its robust 1U rackmount form, redundant relay pairs, high isolation on all paths, and a front-panel web-browser interface for real-time status visibility, the ICI is engineered for demanding accelerator and beamline control installations.