External digital triggering, 4 trigger modes, Trigger modes – ADLINK USB-1210 User Manual
Page 37: Figure 3-6, Above-high analog triggering, Figure 3-7, Digital triggering
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Operation & Calibration
27
USB-1210
Figure 3-6: Above-High Analog Triggering
External Digital Triggering
An external digital trigger occurs when a rising or falling edge is
detected on the digital signal connected to the AITG (analog input
trigger) pin. Trigger polarity can be programmed using ADLINK
software drivers.
Figure 3-7: Digital Triggering
3.1.4
Trigger Modes
Analog input supports post, pre, middle, delay, gate, post trigger
with retrigger, and delay trigger with retrigger modes.
WARNING:
Signal level of the external digital trigger signals should be
LVTTL-compatible, with a minimum pulse of 20ns.
Positive-edge (rising)
trigger event occurs
Negative-edge (falling)
trigger event occurs
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