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CHAPTER 3: FRONT PANEL
The front panel is equipped with buttons and bar graphs. The keypad has (8) buttons and (1) bar graph.
All buttons have low and high intensity levels of the red back light. All buttons are set to low back light intensity after the keypad
switches on. The back light intensity level can be changed for each button independently from a control unit using program
commands. High level is used for a status indication.
Bar graphs are equipped with (20) LEDs and they are controlled by special programming commands from a control unit.
6
(8) buttons
bargraph - 20 LEDs
FIGURE 3-1. FRONT PANEL
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