Synchronization of multiple USB-4431

[BuddyLedger]

Hi,

Can multiple USB-4431 units be synchronized together using the digital i/o port to share the sample clock?  looked at docs but I don't fully understand the pin assignments for the digital i/o connector. 

If it is possible would it require labview level timing or would NIDAQmx handle it via channel expansion?

Thanks.

[BuddyLedger]

I believe I have found the answer.  Yes the clock can be shared via PFI0 and setting one master device with additional devices as slaves.

References:

https://forums.ni.com/t5/Example-Code/Synchronize-Analog-Input-on-Multiple-USB-Devices-Using-LabVIEW...

https://forums.ni.com/t5/Multifunction-DAQ/Synchronous-data-acquisition-using-two-NI-USB-6251-Datalo...

http://digital.ni.com/public.nsf/allkb/8CD44F64AFAC6EAC862572CF0059A48F?OpenDocument 

https://www.ni.com/en/support/documentation/supplemental/06/timing-and-synchronization-features-of-n...