A connector, comprising:a first housing (10), and a second housing (20) is connected, on which a cam follower (23) is designed;a slide (30), which, in or on the first housing (10) is mounted, and is movable in a direction, which is a connection direction of the first and second housing (10, 20) intersects;a cam function section (33), which, in or on the slide (30) and is fixed to the cam follower (23) can be brought into engagement;a toothed rack (34) on the slide means (30) is formed and a plurality of teeth (35) which are arranged at uniform intervals;a lever (40), the rotatably or pivotably on or in the first housing (10) is mounted; anda pinion (44), the on or in the lever (40) is formed and a plurality of teeth (45) contains at regular intervals along a circumference concentrically with respect to a center of rotation of the lever (40) are arranged;wherein:if the lever (40) is actuated, the slide (30) by the engagement of the pinion (44) and the toothed rack (34) is moved and the first and second housing (10, 20) by the engagement of the cams function section (33) and of the cam follower (23) are connectable;the lever (40) and / or the slide (30) with one or more impairment sections (51, 54) is formed, which prevent a mounting process, by providing it with the teeth (35; 45) of the respective other of the lever (40) and of the slide (30), where if an attempt is made, the lever (40) and the slide (30) in a proper positional relationship to install; andthe lever (40) and / or the slide (30) with one or more exit portions (61, 64) is formed, which the entry of the adverse effect on sections (51, 54) only when the lever (40) and the slide (30) are mounted in a proper positional relationship.
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