The ornamental design for a cablejunctiondevice, as shown and described.
FIG. 1 is a front, top, left-side view of the cable junction device;
FIG. 2 is a rear, top, left-side view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a right-side elevational view thereof;
FIG. 6 is a left-side elevational view thereof;
FIG. 7 is a top plan view thereof; and,
FIG. 8 is a bottom plan view thereof.
The broken lines present in the drawings are included for the purpose of illustrating portions of the cable junction device and form no part of the claimed design. The dash-dot lines define the bounds of the claimed design and form no part of the claimed design.