With all those video inputs, we have to have some way to switch back and forth among them.
对于所有的视频输入，我们有一些办法在它们之中前进或后退定位。
Four channels video inputs and two channels alarm outputs. It is easy to integrate alerts of different kinds of sensors and Sound and Light Alarms.
四路报警输入，两路报警输出，轻松实现各类传感器与声光报警器联动报警。
The compact unit USES only one rack unit of space, while delivering a variety of video inputs for monitoring computers, digital video recorders analog cameras, and consumer electronics.
尽管此切换器仅有一个空间架构单元，但可以为监控计算机、数字录像机和消费电子产品等传输多种视频文件。
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