Thông số kỹ thuật màn hình AB Panelview: The Allen-Bradley 2711P-B4C5A terminal is an operator interface terminal from the Panelview Plus 400 terminal series. It is equipped with both a small touchscreen and a keypad as control and data input options. Although the touchscreen on the 2711P-B4C5A operator interface terminal is only 3.5 inches in diameter, it can display its data with full color graphics. This terminal operates with an input voltage rating of 85 to 264 Volts AC.