Ethernet Communications Module (ECM)

The ECM (Ethernet Communication Module) is a powerful serial to Ethernet converter that enables CEM serial communication devices to connect to the CEM AC2000 access control system via an Ethernet LAN.

A chain of up to 16 RS485 CEM devices can be connected to a single ECM. This provides a cost effective means of connecting groups of serial readers to the AC2000 access control system from a single Ethernet point.


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  • Low cost serial to Ethernet converter
  • Offers serial reader compatibility on an IP system
  • RS485 connection for multi dropping up to 16 CEM serial devices on one chain
  • 10/100Mbps Ethernet through an RJ45 connection
  • Configuration connection with Tibbo Device Server Toolkit