What is the difference between PXIe-5654 & PXIe-5654 Fast Switch Module?

[linu95k]

What is the difference between PXIe-5654 & PXIe-5654 Fast Switch Module? What advantage does the Fast Switch Module offer over the standard since there is considerable price difference in the Two.

[Apex_Waves]

Fast switching refers to the frequency tuning time. When the fast tuning option is available, the PXIe-5654 can usually tune to and from any frequency in 100 μs or 150 μs, when tuning to frequencies less than 250 MHz.

One exception occurs when the device switches from a higher frequency to a frequency of 250 MHz or less; if a frequency switch crosses the 250 MHz threshold in a high-to-low direction, the frequency settling time increases.

The standard switching time without the fast tuning option is 1 ms.

Additional info:
Frequency Tuning Times

Hope this is helpful!