change to mdsconnect('ssh://' jet_user '@mdsplus.jetdata.eu');

then change to jet_user

new param "jet_user" (for the username to use in ssh mds connect) has been added works from ITER IO (copied key from lacs, osauter at jet) using ssh://git@gitlab.epfl.ch/spc/tcv/tbx/mds.git compiled at ITER by Antoine Merle