Connecting the WS 2080 on an open platform like Linux on Raspberry Pi needs the Open2300 package (link to Kenneth Jahn Lavrsen's Open2300 package).
Kenneth's package reads data from the Lacrosse family of Weather Station products, many of which are oem'ed or rebranded into different markets. They carry a number of designations - WS2300/WS2305/WS2310/WS2315.
See Steve Wardell's blog for a start to this investigation (link stevewardell.wordpress.com)