The unit can detect the position of withdrawable part and status such as circuit-breaker and earth switch, through I/O function-module control earth switch and withdrawable part.

• 监控单元软件完成了对可抽出部件的位置及接地开关和断路器等状态的检测，通过I/O模块实现对接地开关和可抽出部件的控制。