Thanks for your quick response.
So, based on that, I presume worst case scenario, if I get a 2 connector plug that fits in the back of the UIRT, even if it is one that I have to run my own wire, I could do that, and be in business?
I see the Opto-isolated cable listed above, but I dont' want to wait on an Internet order. I doubt they'd know what that is either.