利用以太网供电技术和开放式软件架构，相机很容易安装和操作。
Using power-over-Ethernet technology and open software architecture, the cameras are easy to install and operate.
详细介绍以太网供电技术的基本原理，结合一款支持以太网供电技术的TPS2370型电源管理电路进行讨论。
The basic principle of the technology of power over Ethernet is described in detail, and the power management circuit TPS2370 supporting the technology of power over Ethernet is discussed.
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