The Astronics Test Systems PXIe-2461 PXI is a high-performance, 2-channel,
universal 235 MHz Universal Counter/Timer.
Occupying a single PXI Express periphal slot or hybrid slot, the frequency & time
interval/counter (FTIC) offers eleven easy-to-use automatic measurement func-
tions, including phase, pulse, peak, rise/fall time, time interval and ratio measurement, all with extremely high resolution.

Product Information
Brief Description
The PXIe-2461 high-performance Universal Counter/Timer offers twelve automatic measurement functions:
• Frequency (Direct or Ratio) and Period
• Time Interval (Normal and Delayed)
• Rise and Fall Time
• Pulse Width (Positive or Negative)
• Duty Cycle and Phase
• Totalize (Manual or by Pulse or Cycle)
• DVM (MAX, MIN and DC voltages)
Measure with High Granularity
The PXIe-2461 counter measures frequencies up to 235 MHz with up to 9 digits of resolution per second. Capture time intervals with 1 ns single-shot resolution and 100 ps resolution with averaging enabled.
Flexible Hysteresis
The PXIe-2461 has both a low and a high hysteresis setting for improved noise immunity. Factory hysteresis settings can also be programmed to a system requirement using a hysteresis calibration tool.
Measurement Timeout
Programmable measurement Timeout enables system performance to be opti- mized where input signals are missing.


Key Features
• Perform precision timing measurements with 9 digits of resolution
• Automate testing using the automatic measurements including peak signal
• Key specifications include:
– 235 MHz frequency measurement
– 9 digits per second resolution
– 1 ns time interval resolution (100 ps with averaging)

Parameter Name	Parameter Value
Type	pulse time cycle
Technology	electronic
Other characteristics	automatic programmable manual