Trigger Output; Trigger Edge; Comprehensive Example - UNI-T UTG9504T User Manual

UTG9000T Series Function Abitrary Waveform Generator

3.3.7 Trigger Output

When trigger source is internal or manual, the trigger signal (square wave) can be output through external digital
modulation terminal（FSK Trig connector）, compatible with TTL level. The default trigger output is OFF. Rotate
multifunction knob or tap TrigOut to step through Close, REdge and DEdge.
Internal trigger source, the waveform generator outputs a square wave with duty ratio of 50% from external

digital modulation terminal (FSK Trig connector) when burst mode starts. The waveform frequency is equal to pulse
string period.
Manual trigger source, the waveform generator outputs a pulse wide than 1μs from external digital

modulation terminal (FSK Trig connector) when burst mode starts.
External trigger source, trigger output will be hidden in parameter list. Because the trigger output is also

output by the external digital modulation terminal (FSK Trig connector). This terminal can not be the external trigger
input and internal trigger output at the same time.

3.3.8 Trigger Edge

The external digital modulation terminal (FSK Trig connector) can be designated edge as input or output. When the
terminal used as input (ExtREdge/ ExtFEdge external trigger source), ExtREdge means that rising edge of external
signal triggers output a pulse string; ExtFEdge means that falling edge of external signal triggers output a pulse
string. In gating mode, when polarity is positive, the external signal with high level, it will output a pulse string; when
polarity is negative, the external signal with low level, it will output a pulse string. When the terminal used as output
(internal trigger or manual trigger source), rising edge represents the rising edge output trigger signal; falling edge
represents the falling edge output trigger singal, and the default is rising edge.

3.3.9 Comprehensive example

In burst mode, set a sine wave with period 5ms, amplitude 500mVpp as pulse string wave, burst mode set to N cycle,
pulse string period 15ms, cycle number 2, the settings steps as following,
1) Turn on burst mode: tap CH1→Burst→NCycle accordingly.
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