I claim the ornamental design for a cable tester, as shown.
FIG. 1 is a front elevational view of a cable tester showing my new design. It shows the placement of two cable jacks, two LED's, a switch, and attachment point for an optional carabiner.
FIG. 2 is a left side elevational view thereof. It shows the placement of the two cable jacks, switch, and carabiner attachment point referenced in FIG. 1.
FIG. 3 is a right side elevational view thereof. It shows the placement of the carabiner attachment point referenced in FIG. 1.
FIG. 4 is a top plan view thereof. It shows the placement of one of two of the cable jacks and the carabiner attachment point referenced in FIG. 1.
FIG. 5 is bottom plan view thereof. It shows the placement of the switch referenced in FIG. 1.
FIG. 6 is a left side elevational view with a rotated perspective thereof. It shows the placement of the two cable jacks, switch, two LED's, and carabiner attachment point referenced in FIG. 1; and,
FIG. 7 is a right side elevational view with a rotated perspective thereof. It shows the placement of the carabiner attachment point referenced in FIG. 1.