Acura Embedded AcuTab-A - Manual (Page 27)

The navigation buttons include up, down, right, and left arrow keys
and the Enter key in the center.
This function lets you press the arrow keys to move the cursor up,
down, right, or left on the screen, after that press Enter to execute
the function.
RFID
Data/files transferring from the RFID-equipped or equivalent device
to your AcuTab-A System. This port only can receive data or files from
other RFID-equipped or equivalent device.
User Interface Button
If your system does not define User Interface function, this button
can be programmable to execute specific application.
Programmable Function Buttons
Hotkey - F1
This function button is pre-programmed with the searching function.
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