树莓派以太网poe供电

Many devices—like Wi-Fi cams—get power by being plugged into a nearby outlet through USB. But if you want to place that device somewhere where an outlet isn’t nearby, you can use existing ethernet drops (or run ethernet yourself) to power the camera using a handy adapter.

许多设备(例如Wi-Fi摄像头)都是通过USB插入附近的插座来获得电源的。 但是，如果要将设备放置在插座附近的地方，则可以使用现有的以太网接口(或自己运行以太网)使用方便的适配器为相机供电。

Keep in mind that some devices will already come with ethernet built in, which is used to both power the camera and connect it to your local network or the internet. Others, like Wi-Fi cameras, will only get power from a USB cable that’s plugged into an outlet using a power adapter. But if you have a house wired for ethernet with cables going everywhere, you can free up an outlet and use ethernet instead.

请记住，某些设备已经内置了以太网 ，该以太网既可用于为摄像机供电，也可将其连接到本地网络或Internet。 诸如Wi-Fi相机之类的其他设备，则只能通过使用电源适配器插入插座的USB电缆来供电。 但是&#