主要介绍了利用交换机现有的扫描功能，实现远端模块局机房无人执守的工作原理和方法。
This text presents principle and methods of realizing the remote monitor and control in the program control houses without workers.
主要介绍了利用交换机现有的扫描功能，实现远端模块局机房无人执守的工作原理和方法。
This text presents principle and methods of realizing the remote monitor and control in the program control houses without workers.
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