A type of communication transmission cable consisting of two center conductors surrounded by an insulating spacer which in turn is surrounded by a tubular outer conductor (usually a braid, foil or both). The entire assembly is then covered with an insulating and protective outer layer. It is similar to coaxial cable except that there are two conductors at the center.
A cable that is similar to coaxial cable, but has two inner conductors instead of one. Used in IBM midrange systems such as Systems 34, 36, and 38, and AS/400. Often shortened to "twinax."