When in the first position, the switch provides indication that the wireless communication device is enabled.
当在第一位置时，此开关提供无线通信设备被允许的指示。
There is mechanical interlock for the drawer units, they can be opened only if the switch is at break-off state. The drawers have apparent position indication for close~ test and off.
抽屉单元装有可靠的机械联锁装置，只有在分断开关的状态下才能被打开，同时抽屉具有明显的合闸、试验、分断位置显示。
When in the second position, the switch provides indication that the wireless communication device is disabled.
当在第二位置时，此开关提供无线通信设备被禁止的指示。
When in the second position, the switch provides indication that the wireless communication device is disabled.
当在第二位置时，此开关提供无线通信设备被禁止的指示。
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