Suprema Secure I/O 2 Encrypted Door Control Module (SIO2)Secure I O 2 is Supremas compact and secure door control module, designed to enhance the safety of distributed access control systems. It adds a physical layer of protection by separating the relay control from the reader, ensuring that doors cannot be bypassed through tampering with edge devices. This module receives encrypted signals from Suprema IP readers and controls the door lock securely through an onboard relay. Built with a secure AES 128