The white SYS ON light will illuminate __________________.

The white SYS ON light will illuminate __________________.

• A. If the container doors have been signaled to open by the automatic system.
• B. If the oxygen system is not ready.
• C. If the system is in test mode.
• D. If the container doors have been signaled to open by the automatic system or the MANUAL ON pushbutton.

Answer: (D)

The white SYS ON light signals that the oxygen system has been activated and the container doors are being signaled to open, making oxygen available. This can happen in two ways: automatically, when the system detects a condition that requires oxygen release, or manually, when someone presses the MANUAL ON pushbutton to initiate the supply. In other states like not ready or during a test mode, the SYS ON light is not intended to be illuminated, since those situations involve different indicators or test procedures. So this light lights specifically when the doors are opened by the automatic system or when the manual ON control is used.

The white SYS ON light signals that the oxygen system has been activated and the container doors are being signaled to open, making oxygen available. This can happen in two ways: automatically, when the system detects a condition that requires oxygen release, or manually, when someone presses the MANUAL ON pushbutton to initiate the supply. In other states like not ready or during a test mode, the SYS ON light is not intended to be illuminated, since those situations involve different indicators or test procedures. So this light lights specifically when the doors are opened by the automatic system or when the manual ON control is used.