When the ordinary call, the door light outside the ward is shining red.
When the advanced call, the door light outside the ward is blue.
When the special care call, the door light outside the ward is shining green.
When the infusion alarm occurs, the door lights outside the ward are alternately red and blue.
When the bathroom alarms, the door lights outside the ward are alternately red and green.
When the “Enter Care” button of the ward door machine is pressed, the door light outside the ward is always bright blue.
When the bed is released, the nurse station cancels the call, and the bathroom is released, the door light outside the ward is extinguished