A switching coaxial jack has at least first, second, and third coaxial center conductors, a switch, and a cam. The switch has a first position that electrically couples the first and second center conductors to one another and a second position that electrically couples the first and third center conductors to one another. A cam is responsive to a plug inserted into the jack to apply a lateral force against the plug and/or to operate the switch between its first and second positions.