OK, I think it's beginning to sink in with me. What I have is non-standard. What you are saying about the wires from the 666: they are all connected to non-functioning parts of the phone (with the exception of the L1 on the network, I presume) and I should check to see which wires from the 25-pair cable they actually connect to. Which is kind of what I thought in the very beginning: the phone is being used as a kind of connecting block between the 760, the 660, and the model 55 control unit, probably mounted near the KSU, right?


Bill