PSG's Digital Encrypted Security Interface (DESI) transforms traditional (end-of-line resistance) for security devices with Zero Trust architecture, offering true edge-to-cloud encryption and FIPS-compliant cryptography. Suited for the commercial and critical infrastructure markets, DESI ensures secure, authenticated data transmission across vital systems, providing unmatched protection and reliability.

PSG's Digital Encrypted Security Interface (DESI) transforms traditional (end-of-line resistance) for security devices with Zero Trust architecture, offering true edge-to-cloud encryption and FIPS-compliant cryptography. Suited for the commercial and critical infrastructure markets, DESI ensures secure, authenticated data transmission across vital systems, providing unmatched protection and reliability.

This innovation is protected under U.S. Patent 20220021545-A1, which covers a novel method for encrypted device-level authentication by securing legacy analog sensor circuits used in physical security, access control, and SCADA applications.

Benefits for Field Panel OEMs and System Integrators

Lower Costs: Deploying multiple DESI over a single wire pair, reduces installation complexity and wiring expenses.

True Security: Replaces vulnerable supervised loops with a fully authenticated system, ensuring end-to-end protection.
Seamless Integration: DESI is compatible with existing infrastructure—no need for special wiring or expensive retrofits.
Tamper-Proof I/O: Eliminates the need for hardened conduit by securing monitoring & control signals against unauthorized interference.
Flexible Deployment Options: Integrate DESI with existing panels via UFP software or add a dedicated UFP panel—API available for seamless integration.

Benefits for Sensor and Control OEMs

Simplified Installation & Cost Savings: DESI reduces hardware complexity by enabling monitoring and control over a single wire pair, minimizing the need for additional terminals.
Continuous Data Authentication: Ensures end-to-end security across the entire ecosystem, including the far edge—critical for AI and machine learning applications.
Seamless Integration: Embed DESI into any new or legacy sensor or door control system (locking devices, door position sensors, request-to-exit systems) to achieve true Zero Trust and edge processing.
Beyond Traditional Cybersecurity: Unlike conventional access control and intrusion detection systems that stop at the panel, PSG extends Zero Trust all the way to the far edge, securing sensors and door controls.
Tamper-proof Edge Devices: Traditional sensors with end-of-line resistors are vulnerable to spoofing. DESI eliminates this risk with a robust challenge-response authentication for all inputs and outputs.
Supply Chain Authenticity: DESI provides built-in, tamper-proof authentication via a write-once OEM data page, ensuring product integrity from manufacturing to deployment.

Click to Open Data Sheet (pdf)