ADLINK PXI-2502 - Manual (Page 53)

Operation Theorem
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4.5.2.4 High-Hysteresis analog trigger condition
Figure 4.5.5 shows the high-hysteresis analog trigger condition, the trigger
signal asserts when the input analog signal level is higher than the
High_Threshold voltage, where the hysteresis region is determined by the
Low_Threshold voltage.
Figure 4.5.5 High-Hysteresis analog trigger condition
4.5.2.5 Low-Hysteresis analog trigger condition
Figure 4.5.6 shows the low-hysteresis analog trigger cond ition, the trigger
signal asserts when the input analog signal level is lower than the
Low_Threshold voltage, where the hysteresis region is determined by the
High_Threshold voltage.
Figure 4.5.6 Low-Hysteresis analog trigger condition