DCM 300 two door controller

Available in both serial and Ethernet options, the DCM 300 is a low cost, intelligent two-door controller range that is designed to interface third-party read heads with the CEM AC2000 access control system. 

Offering layers of system resilience, the DCM 300 has an internal database giving full off-line card validation and decision making capability at the point of entry, when host communication is not available.

The DCM 300 supports most third-party access control read heads conforming to the physical Wiegand/Mag Stripe interfaces, covering a range of technologies.

Serial controller option is sDCM 300 & Ethernet controller option is eDCM 300.


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  • Interfaces third party readers with the CEM AC2000 access control system.  For critical doors CEM recommends using advanced CEM card readers
  • Support for two-doors
  • Structured database allows storage of large amounts of cardholder records for off-line card validation
  • Reader communications via standard Wiegand or Mag Stripe interfaces
  • Eight supervised inputs (four available per door)
  • Two Relays (normally opened or normally closed)
  • Self resetting fuses,  saves maintenance time
  • Onboard LED for maintenance and diagnostics
  • Dedicated Tamper input
  • Board only option available
  • DCM 300 is available in two options: eDCM 300 IP controller and sDCM 300 Serial Controller


Technical Documentation