I have placed a signal on c1 of my SCXI 1129 and connected it to r1. Then I connected r1 to com1 and com1 to ab1. At this point how do I read that voltage using my DMM that is connected to the backplane. I was able to do it by using c0, r0, com0, ab0 and I recieved the proper measurement. Also, i should not that I have done all my testing using the front softpanels.