CNL Software, a world leader in Physical Security Information Management (PSIM) software, is pleased to announce it has entered a non-exclusive technology collaboration with underwater security company, Sonardyne International Ltd. The companies are currently working together on a major critical national infrastructure project, integrating Sonardyne?s Sentinel intruder detection sonar with the IPSecurityCenter™ PSIM platform. This delivers complete situational awareness through the long-range identification and early classification of approaching underwater threats.