You install the 1-wire network, which is described in the beginning of this FAQ:
Then you plug the 1-wire sensor into the USB (in my case) 1-wire adaptor and then use the Davis 1-wire setup screen to detect the sensor and allocate it, then you select the appropriate selection under Com port setup for the La Crosse with 1-wire wind sensor…
If MY Boss was out of town i would just order a VP2 myself LOL (Then you could all send your condolences to my Fatherless kids… LOL )
-Bob