当要求进入电梯底坑的时候，必须首先打开控制柜中主开关IG，然后把安全杆转到工作位置；
When entering the elevator pit is required, firstly turn on the main switch IG in the control cabinet, and then switch the safety rod to the working position;
控制杆可让安全密室里的人锁上或打开房子里的任何门，来捕捉入侵者。
A joystick allows the safe room occupant to lock and unlock doors throughout the house to trap an intruder.
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