8. Portal application with DCU1 Data Control Unit(optional, art. nr. 9240.100)In order to realize portal/gate solutions, up to four UDL500 can be connected to theDCU1 Data Control Unit via RS485 interface. The readers have to be connected radiallyto the DCU1 using 4-core cables (4 x 0.5mm).The DCU1 manages and controls all the readers, while each reader can be configuredseparately. In case of multiple reading of transponder data, the data can be filtered firstand will then be transmitted to the host system.Portal/Gate application with UDL500 readersFor a detailed description of the portal installation please refer to the document„Application Note UHF Portal“.V17/01/08 deister electronic GmbH 30890 Barsinghausen Germany 31Wiring & Installation Instructions UDL500