A system for electrically connecting first and second electronic devices wherein the devices are movable relative to each other. The system includes an electric cable having end segments and a medial segment therebetween wherein each of the end segments connects to one of the first and second electronic devices. A tensioning mechanism maintains a tensile load on the medial segment of the electric cable while a guide mechanism directs movement of the electric cable in response to relative motion between the first and second electronic devices. Moreover, a strain relief mechanism is operative to mitigate the transmission of tensile loads from the medial segment to either of the end segments such that the end segments are substantially unloaded in response to movement of the devices.