Coupling Interface

FIG. 1 is a left, front perspective view of a coupling interface;

FIG. 2 is a left side view thereof, the right side view being a mirror image of the left side, and the top and bottom views being identical to the left side;

FIG. 3 is a rear view thereof; and,

FIG. 4 is a front view thereof.

The dashed broken lines are for the purpose of illustrating portions of the coupling interface that form no part of the claimed design.

The coupling interface is shown with symbolic breaks in its length. The appearance of any portion of the coupling interface shown between the break lines forms no part of the claimed design.