NI MAX Sample Clock Settings

[anashosami]

Hello

I am using the bridge module ni 9237 along with the NI cDAQ 9185. 
While creating a task on NI MAX, i want to configure the sample clock settings.

I have the option to choose between internal or external type of clocks.
Does internal mean module based i.e. (ni 9237) ?
Or does it mean the DAQ clock.

what does the external onboard clock mean?

Also can't I choose the cDAQ 9185 timebase 10HHz as source of clock?

Thanks for your help.

[ZYOng]

From NI-9237 Getting Started

The NI-9237 includes an internal master timebase with a frequency of 12.8 MHz, but the module also can accept an external master timebase or export its own master timebase. To synchronize the data rate of an NI-9237 with other modules that use master timebases to control sampling, all of the modules must share a single master timebase source.

And then from Timing Considerations for C Series Devices - NI-DAQmx Device Considerations Documentation

With the NI 9225, NI 9229, NI 9233, NI 9234, NI 9235, NI 9236, NI 9237, and NI 9239, external clocking from arbitrary external signal sources such as encoders and tachometers is not supported.

NI 9237 can only import or export the timebase from or to another C series module.

[anashosami]

That is great!

Thank you for the clarification.