DM-20 provides secure door control of up to four doors via encrypted communication and also contains two wiegand reader interfaces for use with 3rd party readers. A wide variety of I/O interfaces allows DM-20 to be a part of diverse system configurations.


Centralized Access Control

Combined with a Suprema Device, DM-20 provides ability to design and implement a centralized access control system with up to 32 doors and up to 8 biometric devices through daisy chain configuration.

Key Highlights

  • Secure data transmission due to encrypted communication
  • Control up to four doors through multiple inputs and outputs
  • Easily monitor device status with 4 additional supervised input
  • Provides ability to implement Centralized Access Control with a Suprema device

Model Name DM-20
Memory Flash 128KB, SRAM 20KB
LED Multi-color
Operating Temperature -20° ~ 60°C
Storage Temperature -40°C ~ 70°C
Operating Humidity 0% ~ 80%, non-condensing
Storage Humidity 0% ~ 90%, non-condensing
Dimension (WxHxD, mm) 130 x 90.5 x 35.8
Tamper Not supported
Certificates CE, FCC, KC, RoHS, REACH, WEEE
Interface RS-485 1 ch
Wiegand 2 ch
TTL Input 4 ch
Relay 4 relays
RS-485 Communication Protocol OSDP
Supervised Input 4 ch
TTL Output 6 ch
Electrical Power DC 12 V
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