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The state is entered via an arrowed line into the top or the side of the box. A line from the top section traces flow
to the next state when the switch is pushed up. A line from the bottom section traces flow to the next state when
the switch is pushed down. A line from the middle section shows the flow when the switch is not pressed and a
timeout period (of several seconds) has elapsed.
Figure 6.3: Front panel state transitions
After self-test and configuration, the display enters its normal (status) display mode. From there, pushing the
switch in either direction shows the configuration display, and pushing it again in the same direction will return to
the main status display.
Selecting the Settings display (with two operations of the switch, in opposite directions) and doing nothing will
result in all the settings being displayed in turn and then the display will return to its normal status display mode.
Selecting the Settings display and then pushing the switch down (Change) allows these settings to be modified, as
outlined in the following sections.