14 IntroductionWhat is Communication Port RTR-50?The Wireless Communication Port RTR-50 (Unit Ver.2-1-x orhighrer) is a base unit designed to carry out wirelesscommunication with our RTR-61 and to be connected to acomputer via a USB cable to gather data from and control theloggers. Also, by setting up an RTR-50 between the RTR-50designated as the Base Unit and the RTR-61 Remote Data LoggerUnit, you can use any RTR-50 as a Repeater for wirelesscommunication.NOTE:- "RTR-61 for Windows (EU)" can only be used when the PCcommunication connection is with a USB Cable.- RTR-50 (Ver.2-1-x) can also be used with our Thermo Recorder RTR-5Series loggers if software designed for that purpose is used. Please seeour Website for details.- In order to carry out wireless communication between an RTR-61 DataLogger and an RTR-50 Base Unit, it is first necessary to register theData Logger as a Remote Unit of that RTR-50 via optical communicationusing the supplied optical communication adaptor (RTR-06A1).- If the distance between an RTR-50 Base Unit and an RTR-61 RemoteUnit exceeds the possible range of wireless communication, it ispossible to set up one or, if necessary, multiple RTR-50 Unit(s) asRepeater(s) between them in order to route wireless communicationfrom the Base Unit to the Remote Unit.