Casio IT-2000W Auto Power OFF Function APO, Auto Backlight OFF Function ABO, About the activity

Auto Power OFF Function (APO)

This function automatically shifts the system to the OFF state (suspend state) if no event has taken place for a specified period of time from the touch panel, the keyboard, COM1, or a file.

This time interval has been set to one minute by default. It can be modified using the System Menu or system library.

About the activity

Any access to the touch panel, key, COM1, or file that causes results in Auto Power OFF is defined as "an activity", and it is said that "an activity occurs" if one of these devices is accessed. In other words, the Auto Power OFF function can be said to have shifted the system to the suspend state if no activity has occurred for a specified period of time.

The term "activity" is also used in the later description of the ABO function, but it has a different meaning.

Activity monitored by APO:

Touch panel input

Key input

￿Access to files Access to COM1

Auto Backlight OFF Function (ABO)

This function automatically turns off the backlight if it no access to the touch panel or keys has been attempted for a specified period of time. This time interval has been set to twenty seconds by default. It can be modified using the System Menu or system library. Touch panel or key sensing is performed by the keyboard controller. This keyboard controller not only processes key input or touch panel input, but it also simultaneously detects activity while executing various background processes. Consequently, the limit value set as the Auto Backlight OFF time will not be accurate down to the seconds. The accuracy of this setup value is￿10 percent.

Activity monitored by ABO:

￿Touch panel input Key input

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