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MM23016, Rev. C
18
7 OPENSKY OPERATION
7.1 CH721 FRONT PANEL COMPONENTS
The front panel of the control head includes a dot matrix display, controls for menu navigation, an
emergency button, three pre-set buttons, a Power On-Off/Volume Control knob, and a microphone
connector. In addition, the system model control head features a DTMF keypad. Table 7-1 lists all default
front panel co
ntrols and their functions.
Figure 7-1: System Model
Figure 7-2: Scan Model