RIGOL MSO/DS4000 Series - Manual (Page 51)

RIGOL
MSO4000/DS4000 Quick Guide 9
Rear Panel Overview
Figure 12 Rear Panel Overview
1. Trig Out/Calibration
Various kinds of signals can be output from this connector (press Utility 
AuxOutput to select the desired output type).
1) TrigOut: the oscilloscope outputs a signal which can reflect the current
capture rate of the oscilloscope each time a trigger is generated.
2) Fast: the oscilloscope outputs a fast edge signal which can be used in the
self-calibration of the oscilloscope.
3) GND: the oscilloscope outputs a ground level.
4) PassFail: the oscilloscope outputs a pulse when failed waveform is
detected and the pulse can be transmitted to other control system for easy
view of the test result.
2. Reference Clock
Provide more precise sample clock signal for the oscilloscope and it can also
synchronize two or more oscilloscope clocks.
3. Video Output
Through this interface, the oscilloscope can be connected to external monitors to
get clearer waveform display. Note that the display of the oscilloscope is still
valid.
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