FIG. 3A is a close up top view of a portion of circuit board 120 having cutout 160 and connector through hole 125; and FIG. 3B is a close up top view of another portion of circuit board 120 having cutout 162 and connector through hole 127. As noted above, cutout 160 extends around an exterior of protrusion 140 when the circuit board 120 is positioned within housing 130, and cutout 162 extends around an exterior of protrusion 150 when the circuit board 120 is positioned within housing 130. Circuit board 120 includes a through hole 125 near cutout 160 through which connector 112 extends upon assembly, and circuit board 120 also includes a through hole 127 near cutout 162 through which connector 112 extends upon assembly. The areas around through holes 125 and 127 are reinforced to provide for additional strength to the circuit board 120 around those through holes.