| 摘要 |
A permanent or detachable assembly to pull an electrical plug and receptacle into a mated position including, for example, preferably two jackscrews positioned through flanges on the plug and receptacle at opposite ends thereof, the jackscrews having surrounding keying devices which prevent plug and receptacle mating if not aligned. For example, the keying devices may be mounted to corresponding flanges in one of six positions. This makes it possible to allow one and only one plug out of six to mate with a corresponding receptacle. Thus, a wrong connection between a plug and a receptacle is impossible when no more than six types of connections are provided. However, other connections and/or positions are possible.
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