Patent ID: 7766659

Claim:
A series unit comprising: an input terminal, an output terminal, and a television terminal each constituted with a tubular receptacle having a center conductor and an external conductor provided concentrically with the center conductor; and a unit case that supports the input terminal, the output terminal and the television terminal, the external conductors of the terminals being electrically interconnected through the unit case, the center conductors of the terminals being electrically interconnected in a space formed inside of the unit case, both of the input terminal and the output terminal having a shape in which a direction of a connection end portion, connected to the unit case, and a direction of a connection/disconnection end portion, to/from which a terminal of a cable is connected/disconnected, are perpendicular to each other, being constituted as movable terminals so as to be rotatable at the connection end portions connected to the unit case, and being disposed such that planes defined by central axes of the connection/disconnection end portions by rotation of the movable terminals intersect with each other, wherein the unit case includes: a first case portion having a front surface to which the television terminal is provided; and a second case portion provided to a portion on a rear surface of the first case portion so as to extend therefrom, and having an internal space connected to a space formed inside of the first case portion, and wherein one of the input terminal and the output terminal is disposed on the rear surface of the first case portion, and another is disposed on a lateral surface of the second case extending from the rear surface of the first case portion.