Signal relay device

FIG. 1 . is a front perspective view of the front, right, and top sides of a signal relay device showing our new design;

FIG. 2 . is a rear perspective view of the rear, left, and bottom sides thereof;

FIG. 3 . is a front view thereof;

FIG. 4 . is a rear view thereof;

FIG. 5 . is a top plan view thereof;

FIG. 6 . is a bottom plan view thereof;

FIG. 7 . is a right side view thereof;

FIG. 8 . is a left side view thereof; and,

FIG. 9 . is a front view in a state where a cover is opened.

The equal length broken lines in the drawings depict portions of the signal relay device that form no part of the claimed design.