The ornamental design for a connector, as shown and described.
FIG. 1 is a top view of a connector.
FIG. 2 is a bottom view of a connector.
FIG. 3 is a left side view of a connector.
FIG. 4 is a right side view of a connector.
FIG. 5 is a front view of a connector shown in an enlarged scale.
FIG. 6 is a rear view of a connector shown in an enlarged scale.
FIG. 7 is a first perspective view of a connector.
FIG. 8 is a second perspective view of a connector.
FIG. 9 is a third perspective view of a connector; and,
FIG. 10 is a fourth perspective view of a connector.
A connector is shown broken away in FIGS. 1 through—4 and 7 through 10 of the drawings to indicate a non-specified length, it being understood that it has a uniform shape and appearance throughout the portion broken away.