US Patent 7316588 Unitary multi-pole connector

A unitary connector system includes a single pin, multi-pole electrical connector having a plug body, as well as a mating receptacle. The plug body is formed of a series of discrete conductive contacts interposed with a series of insulative rings such that the insulative rings electrically isolate adjacent conductive contacts from one another, each contact thereby forming a terminal. A series of conductive lines extend within the plug body and are electrically coupled with the series of conductive contacts each representing a transmission channel. The universal nature of the plug body design allows for a specific number of poles to be chosen to handle the particular signal transmission requirements.