Bidirectional gateway for EasySens sensors or actuators as well as controllers and control systems with RS485 interface (MODBUS protocol) as well as unidirectional RS485 EVC interface "Multiple Access", e.g. for connecting EasySens sensors to SAIA controllers,the STC65-FTT enables the receipt and transmission of radio telegrams corresponding to the EnOcean communication protocol, incl. external receiving antenna 2,5m