The operation is always conducted with a part of the terminal of the connection object.The connector unit (10) always conducts the first contact opening and closing portion (20) for switching the conductive state between all the target terminals of the probe side connector and the corresponding connecting terminal (40) and a connection terminal (71) corresponding to a terminal of a part of the connection terminal On the other hand, a second contact opening \/ closing portion (60) for switching between the connection terminal (40) other than the above described terminal and the corresponding connection terminal (71) is provided.Diagram【課題】接続対象物の一部の端子との導通を常時行う。【解決手段】コネクタユニット(10)は、プローブ側コネクタの全ての対象端子と対応する接続端子(40)との導通状態を切り替える第1接点開閉部(20)と、接続端子(40)のうちの一部の端子と対応する接続端子(71)とを常に導通状態とする一方、上記一部の端子以外の接続端子(40)と、対応する接続端子(71)との導通状態を切り替える第2接点開閉部(60)と、を備える。【選択図】図6
