| 摘要 |
PURPOSE: To enable signals to be partially outputted through branch terminals and used and to prevent signal leakage and unwanted radio wave by a method wherein a box mounting-type series unit is composed of a main body which is provided with branch terminals located at its front wall and overhangs which are located at the upper parts of the lateral sides of the main body overhanging sidewards. CONSTITUTION: A main body A is equipped with a case A1, and the case A1 is fitted with an input terminal A2 which receives signals from a preceding stage, an output terminal A3 which sends signals to a following stage, and for instance two branch terminals A4 which send signals to a receiver as connected to the receiver. The main body A11 of the case A1 is formed long in a vertical direction and made to serve as parts where the branch terminals A4 are supported and a distribution circuit is housed, wherein the branch terminals A4 are arranged separate from each other in a vertical direction. The overhangs A12 and A13 of the case A1 serve as parts where an input terminal A2 and an output terminal A3 are mounted, and a branch circuit is housed.
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