The EPDS is a perimeter defense solution designed to maintain strict isolation of process control networks while enabling the secure, controlled sharing of critical information with external networks. It provides hardware‑enforced, one‑way data transfer to prevent incoming threats while supporting multiple data types, formats, and subscriber users at the same time through a single controlled interface. This interface creates a protocol break that ensures data flows only from the sending network to the receiving network. EPDS integrates dedicated Send‑only and Receive‑only server platforms connected by proprietary Owl data diode technology. The Enterprise Perimeter Defense Solution can be deployed as a complete, integrated system, providing high‑assurance protection while allowing essential

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