Suprema Secure I/O 2 Encrypted Door Control Module (SIO2)

Secure I/O 2 is Suprema’s 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 encryption protocol and OSDP V2 communication compliance, Secure I/O 2 creates a hardened, end-to-end access pathway between readers and entry points.

Its ultra-compact design makes it easy to install in tight or concealed spaces, such as above door frames or inside electrical boxes. Secure I/O 2 is ideal for high-security environments where relay tampering is a concern, such as data centers, healthcare facilities, financial institutions, and sensitive office areas.

Key Features:

• Encrypted Communication with Suprema Readers
  Secures door relays from tampering or spoofing attempts at the edge

• Secure Architecture for Distributed Access Control
  Separates reader input from lock control to reduce risk of forced entry

• Supports OSDP V2 Protocol
  Industry-standard communication ensures compatibility and secure device messaging

• Built-in AES-128 Encryption
  Protects all data transmission between readers and relays

• Compact and Flexible Installation
  Ultra-small size (36 x 65 x 18 mm) for discreet mounting in limited spaces

• Reliable Hardware Specifications

  • Cortex M3 72 MHz processor

  • 128 KB flash and 20 KB RAM

  • One relay output and two TTL inputs

  • Operating temperature: -4°F to 122°F

  • Certified: CE, FCC, UKCA, RoHS, REACH, and ETL listed to UL 294

Secure I/O 2 gives system integrators and end users an extra layer of protection against physical intrusion, without adding complexity to their access control setup. It is a simple but powerful upgrade for any Suprema-based security system.