Quick Reference 2
Keysight InfiniiVision DSOX1204A/G Oscilloscopes User's Guide 53
External Trigger Input
The external trigger input can be used as a source in several of the trigger types.
The external trigger BNC input is labeled Ext Trig.
The external trigger input impedance is 1M Ohm. This lets you use passive probes
for general-purpose measurements. The higher impedance minimizes the loading
effect of the oscilloscope on the device under test.
Maximum voltage at oscilloscope external trigger input
30 Vrms
Table 15 External Trigger Features
Feature Front Panel Key/Softkey Location (see built-in help for more information)
External trigger units [Trigger] > External > Units (Volts, Amps)
External trigger
attenuation
[Trigger] > External > Probe, Ratio/Decibels, Entry knob
External trigger
threshold
[Trigger] > External > Threshold, Entry knob
External trigger range
[Trigger] > External > Range, Entry knob
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