Hi there, I'm new to this and it's all a little overwhelming - please let me know if I miss any necessary info. I am taking over a project that has the NI cDAQ-9188 with several modules (including NI 9401).
I'm working with distributed fiber optic strain sensors and need to send a 5V TTL pulse to an interrogator using a BNC cable to start and end measurements. I know that you have to configure the NI 9401 by nibble, so I can set the first group of channels to send out a TTL pulse. Additionally, I would not only like to send a pulse, but also acquire the output data from the interrogator. The interrogator has a USB 3.0 Type B port, so I can use a cable with stripped wires, but I am stuck on how to connect the USB wires correctly to the NI 9401 pins. Is this even possible with this module?
I also need to communicate with the module by appending to an existing python GUI script. Can anyone point me in the direction of some examples that show how to communicate with the module to have one half send out the TTL pulse, and the other half accept digital input?
Thank you for any help...
