| 摘要 |
In an electric connector having a fitting portion on a base of an electric insulator, locking appliances for locking connection with another electric connector to the former electric connector and mounting appliances for mounting the electric connector itself on a printed circuit board are provided at insertion holes in blocks formed at opposite ends of the base. Ground straps for grounding the electric connector are provided on the blocks so as to serve to prevent the locking appliances from coming off out of the insertion holes. If the electric connector is a receptacle unit, the fitting portion has a fitting space and first notches provided at opposite ends of the space and different from each other. If the electric connector is a plug unit which is electrically coupled to such a receptacle unit, the fitting portion has a plate-like part which is fitted in the fitting space of the receptacle unit and has second notches provided at opposite ends of the plate-like part and different from each other. The first and the second notches are asymmetrically formed so that the plate-like part can be fitted in the fitting space only when the plate-like part and the fitting space are properly oriented to each other.
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