DCU-E (Door Control Unit) is a door control and alarm unit for access and security systems.

DCU-E is a basic action element of access and security systems. It controls the elements of the door environment and monitors the status of the alarm zones.

The digital inputs of DCU-E serve for connecting the keys, motion detectors, monitoring contacts and other input elements from the door environment. The relay outputs contain locks, door engines, sirens, etc. which DCU-E controls according to the orders from the superior CCU (Central Control Unit). The readers of ID cards (CCR, Contal Card R) are connected by means of the RS485.