Bidet - Duravit wall mounted

I am installing a Duravit wall mounted set, toilet and bidet, in my new house and I need to figure out the rough-in details. For the bidet, where does the P-trap go? There doesn't seem to be enough room between the fixture and the waste outlet on the mount. Do I need to install a trap for it in the rough-in waste pipe under the slab?
http://www.geberit.us/CompleteDrawings/RI111-510-00-1.pdf