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正翻译步骤 24

步骤 24
Further investigation into the Lightning connector shows a neat array of pins and a clip to hold the cable in place. As can be seen in the 2nd high res picture, there are are two outermost pin that are inset from the others.  This is standard practice to insure that all other signals and power are connected before the ground or power (depending if Apple decided to supply power via the outer metal shield or ground. Normal practice is to connect signals and ground first and then the power is applied via the shorter pins.  Time will tell and someone with a DVM as to which is the power (pin or shell).
  • Further investigation into the Lightning connector shows a neat array of pins and a clip to hold the cable in place.

  • As can be seen in the 2nd high res picture, there are are two outermost pin that are inset from the others. This is standard practice to insure that all other signals and power are connected before the ground or power (depending if Apple decided to supply power via the outer metal shield or ground.

  • Normal practice is to connect signals and ground first and then the power is applied via the shorter pins. Time will tell and someone with a DVM as to which is the power (pin or shell).

  • Each pin (shown in the third picture) is springy and gold plated on the end to ensure good conductivity between the Lightning cable and the socket.

对闪电连接器的进一步研究显示,它有一排整齐的引脚和一个固定电缆的夹子。

在第二张高分辨率图片中可以看到,有两个最外面的插脚是从其他插脚。这是确保所有其他信号和电源在接地或供电之前连接的标准做法(取决于苹果公司是否决定通过外部金属屏蔽或接地供电)。

通常的做法是先将信号与地面连接,然后通过较短的引脚施加功率。时间会告诉DVM的用户,电源的定义(pin还是shell)。

每根引脚(如图3所示)末端均为弹性镀金,以保证针脚与插座之间具有良好的导电性。

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