What are the exact connections to a BNC2110 to test event counters in MAX?

I am trying to test my 6034E / BNC-2110 setup, using MAX.  The
anallog inputs seem fine, but I am having trouble getting external
events counted by Counter 0 or 1.  I am testing the device using
Test Panels in MAX.  What is the precise wiring to do this
properly?  Also, do the counters require repetitive TTL events, or
can I just twiddle 5 volts on  and off by hand, to watch the
counter?

Hello sonarman,
When you are using test panels in MAX, you should be able to pick the "Edge Source" to be whatever PFI line you want to connect your signal to on the BNC 2110.  For example, when I try this I choose my Edge Source to be Dev1/PFI1 so I would connect to this terminal in the digital and timing I/O section of the 2110. 
If you do not see what I describe, you may have an older version of NI-DAQmx and you might upgrade to NI-DAQmx 7.5. 
You may be able to just switch 5V on and off depending on how fast the voltage actually changes.  The counter needs the rise time to be within TTL specifications.  If this isn't working, then I would try using a TTL pulse.  You can produce TTL pulses with your second counter if you need to using an example program. 
I hope this helps,
Laura

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