MM23016
6 OPENSKY OPERATION
6.1 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 button/rotary volume dial, and a microphone connector.
In addition, the system model control head features a DTMF keypad. Table 6-1 lists all default front panel
controls and their functions.
Figure 6-1: System Model
Figure 6-2: Scan Model
The buttons on the front panel are backlit for operation in a low ambient light level such as nighttime
operation. Some buttons also flash to provide feedback of various operating conditions.
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