A plug connection assembly includes a wall with a wall bushing and a plug connection which penetrates the wall bushing. The plug connection includes a first plug connector on one side of the wall and a second plug connector connected with the first plug connector on a second side of the wall by plugging the first and second connectors together. The second plug connector is arranged on a printed circuit board and the first plug connector includes a shield support in the form of a shielding plate. The shield support is held in contact with the printed circuit board.