HP3-X12 無料問題集「HP Retail Point of Sales Solutions」

（A）The customer did not set the pin jumpers to switch the serial ports to powered mode.

（B）The system is not connected to an AC power source.

（C）The serial port cable is disengaged from the connector on the system board.

（D）The customer did not order the powered serial port add-in card with the system.

（A）Two-line display (Vacuum Fluorescent Display)

（B）10.4 inch customer-facing display

（C）HP POS Keyboard with MSR

（D）HP USB Thermal Receipt Printer (single station)