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8 P25/EDACS/CONVENTIONAL COMMON OPERATION 8.1 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 8-1 lists all default front panel controls and their functions. All functions and controls of the Scan
radio operate the same as the corresponding functions and controls on the System radio.
Figure 8-1: System Model
Figure 8-2: Scan Model
Button function may vary depending upon system programming, radio hardware, and
optional configurations. Complete the table in Section 14 if the keys have been
remapped to provide new functions.