There are three green LEDs at the top left corner of the mainframe. When a
LED is lit, it indicates the trigger status of the oscilloscope.
•
Armed – The oscilloscope is waiting for a trigger event to occur.
•
Triggered – The oscilloscope triggered on a valid trigger event.
•
Auto Triggered – Valid trigger events are not occurring, and the
oscilloscope is automatically triggering every 30 ms because it is in the
Auto sweep trigger mode.
The trigger specifications and the available trigger features depend on the
plug-in you are using. Refer to the User’s Reference for the plug-in you are
using for details on the trigger specifications and available features. For
example, logic triggering capabilities are not available with the HP 54711A
plug-in. If you have an HP 54711A plug-in installed in the mainframe, it
shows up as a trigger source in the edge trigger mode only. Also, trigger 1 on
the HP 54722A plug-in shows up as a trigger source in the edge mode.
Trigger Menu
Trigger Basics
18–5
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