Suprema DM-20 – Door Control Module

The Suprema DM-20 Door Control Module is a secure and intelligent I/O controller designed to manage multiple doors in access control systems. Built to integrate seamlessly with Suprema biometric readers and access control panels, the DM-20 enhances security by offering encrypted communication, centralized door control, and fail-safe operation. Ideal for commercial buildings, data centers, and enterprise security systems, it supports up to four doors with a single device.

Product Features

Multi-Door Control Capability

Manages up to 4 doors, 8 Wiegand readers, and multiple inputs/outputs, streamlining installation for medium to large-scale projects.

Secure Encrypted Communication

Ensures safe data transfer between devices with AES-128 encryption, protecting against tampering and unauthorized access.

Real-Time Monitoring and Event Logging

Enables real-time door status updates and detailed event logging for better security tracking and audit readiness.

Reliable Fail-Safe Operation

Equipped with battery backup and watchdog monitoring to maintain operation during power interruptions or network failures.

Seamless Integration with Suprema Systems

Fully compatible with Suprema BioStar 2 platform and biometric terminals for centralized and scalable access control.

Product Specifications

• Brand: Suprema
• Model: DM-20
• Type: Door control module
• Doors Supported: Up to 4
• Reader Interfaces: 8 Wiegand (2 per door)
• Inputs: 8 supervised inputs
• Outputs: 4 Form-C relay outputs, 4 TTL outputs
• Communication: RS-485 (encrypted, AES-128)
• Power Supply: 12V DC (typical), supports battery backup
• Operating Temperature: -20°C to +50°C
• Mounting: Wall-mount or enclosure mount
• Dimensions: 175 x 125 x 22.5 mm
• Compatibility: Suprema BioStar 2, Suprema terminals
• Application: Access control for commercial, industrial, and institutional facilities