Astronics PXIe-1209, User Manual

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PXIe-1209 User Manual Publication No. 981050 REV. A
Operation 5-8 Astronics Test Systems

Backplane Trigger B (low level). A logic 0 level on the currently selected M
Trigger B input enables the pulse.
The trigger input selections are:

Software Run Bit (default) – the pulse is generated immediately when the RUN
and ENABLE buttons on the front panel are set.

Front Panel Signal A (rising edge) – An input signal which crosses the
programmed “Input A Threshold” with a rising edge on the IN 1 A input (for
PGEN #1) or IN 2 A input (for PGEN #2) triggers the pulse generator.

Front Panel Signal A (falling edge) – An input signal which crosses the
programmed “Input A Threshold” with a falling edge on the IN 1 A input (for
PGEN #1) or IN 2 A input (for PGEN #2) triggers the pulse generator.

Front Panel Signal B (rising edge) – An input signal which crosses the
programmed “Input B Threshold” with a rising edge on the IN 1 B input (for
PGEN #1) or IN 2 B input (for PGEN #2) triggers the pulse generator.

Front Panel Signal B (falling edge) – An input signal which crosses the
programmed “Input B Threshold” with a falling edge on the IN 1 B input (for
PGEN #1) or IN 2 B input (for PGEN #2) triggers the pulse generator.

Front Panel Signal A (rising edge) – An input signal which crosses the
programmed “Input A Threshold” with a rising edge on the IN 1 A input (for
PGEN #1) or IN 2 A input (for PGEN #2) triggers the pulse generator.

Backplane Trigger A (rising edge) – A rising edge of the signal that is presently
selected input for M Trigger A triggers the pulse generator.

Backplane Trigger A (falling edge) – A falling edge of the signal that is
presently selected input for M Trigger B triggers the pulse generator.

Backplane Trigger B (rising edge) – A rising edge of the signal that is presently
selected input for M Trigger B triggers the pulse generator.

Backplane Trigger B (falling edge) – A falling edge of the signal that is
presently selected input for M Trigger B triggers the pulse generator.
The
External Reference
configuration window is shown below. This window
allows the external reference to be enabled or disabled. When enabled, it
provides the means to select the reference frequency (1 PPS, 100 PPS, or 10
MHz), and the external reference source (Front Panel Signal A, Front Panel Signal
B, Backplane Trigger A, or Backplane Trigger B).
Figure 5-10, External Reference Configuration Window