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Trigger Type
Click or tap the drop-down button of Type to select "RS232".
Figure 8.25 RS232 Trigger Setting Menu
After a trigger type is selected, the current trigger setting information (including
trigger type, trigger source, and trigger level) is displayed in the trigger information
label at the top of the screen, as shown in the figure below. The information will
change based on the trigger settings.
Source Selection
Click or tap the drop-down button of Source to select CH1-CH4. For details, refer to
descriptions in
Trigger Source
. The selected trigger source is indicated in the trigger
information label at the top of the screen.
Only when you select the channel that has signal inputs as the trigger source, can you
obtain a stable trigger.
Polarity
Select the polarity of data transmission in the Polarity item. It can be set to "Positive"
or "Negative" .
Trigger Condition
Set the desired trigger condition in the
When item.
Triggering the Oscilloscope
DHO1000 User Guide
100
Copyright ©RIGOL TECHNOLOGIES CO., LTD. All rights reserved.
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