Secure and Resilient Communication Architecture in the Petrochemical Industry
This article provides a framework for designing secure and resilient communication architecture in the petrochemical industry. The main focus is on integrating VoIP, radio, and the Public Address and General Alarm (PAGA) system within a cohesive and robust strategy. It includes:
Intelligent separation of OT and IT networks according to IEC 62443 and NIST 800-82
Ensuring VoIP call quality with QoS and monitoring KPIs
Redundancy and backup paths in multi-site networks
Emergency integration with PAGA according to EN 50849
Security hardening, monitoring, and enforcement of RBAC
Direct benefits: risk reduction, communication reliability, and cyber resilience.