DSD 72B-SP(RI) by Technical Communications Corporation is a ruggedized SONET/SDH encryption system designed for secure network encryption in industrial environments. It provides strategic-level encryption for secure voice, data, and video communications over fiber optic networks. The device is protocol agnostic and features automated KEYNET key and device management. It offers wirespeed performance of 155.52 Mb/s and 622.08 Mb/s, with flexible configurations and AES 256-bit encryption. The DSD 72B-SP(RI) integrates as a network overlay, requiring no network modification and maintaining network performance. It uses protocol-agnostic path encryption and is needed only at network endpoints.