剧院座位上有以太网和电源连接。
不需要以太网电缆,IP相机安装到户外只需要一个12伏的电源。
No Ethernet cable is needed. The IP camera installs outdoors with 12 VAC power only.
本发明公开了一种交换机、电源装置及实现掉电远端报警的方法,涉及以太网交换机领域。
The invention discloses an exchanger, a power supply device and a method for realizing power-down remote-end alarm, relating to the field of the Ethernet exchanger.
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