Overview. When using the Arm-on-A Trigger-on-B sequential trigger, set the Minimum and Maximum Amplitude values for each
unmapped channel used by the trigger.
Use this control window to set the minimum and maximum amplitude vertical setting for the unmapped channels on an UltraSync
stack master oscilloscope. This configures the oscilloscope so that signals in this range provide the largest possible trigger
stimulus without clipping or other nonlinearities. It is important to match these min/max amplitude settings to the actual signal
under test.
In a stack of oscilloscopes, the mapped channels are those used to acquire data (one channel from each oscilloscope in the
stack). The mapped channels on one of the oscilloscopes in a stack can also be used for triggering. The unmapped channels on
a stack master are also available for triggering. These channels are not acquired, so no waveforms for these channels are
displayed. These channels are designated MCH1, MCH2, MCH3, and MCH4. On an ATI stack, CH2, MCH1, and MCH3 are
available for triggering. On a 4-channel stack, CH1, MCH2, MCH3, and MCH4 are available for triggering.
Note that waveforms from these unmapped channels are not acquired, and are thus not visible on the oscilloscope display. To
determine the best values for the min/max amplitudes of the device under test signals, temporarily take the master oscilloscope
out of the stack, measure the values, and then put the master oscilloscope back into the UltraSync stack.
Triggering with reset
You can specify a condition to reset the trigger
system if it occurs before the B trigger event.
When the reset event occurs, the trigger
system stops waiting for the B event and
returns to waiting for the A event.
Quick tips
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B-trigger delay time and horizontal delay time are independent functions. When you establish a trigger condition using either
the A trigger alone or the A and B triggers together, you can also use horizontal delay to delay the acquisition by an
additional amount.
Pinpoint triggers
DPO70000SX Series User 89
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