Ghost,
Your last reply got me checking, you were correct, it was a 120VDC. The mechanic who did the survey forgot his one. I was chasing the wrong voltage. We are using the D2000 board, as we had a few in stock. Interfacing the DOL/DGL and Closedowns we will use a set of relays to change the state of the NO sensors that are there now and will add two sensors for the slow downs.

Indirtwetrust,
Thanks for that info, it will come in handy on the next one.