What is the standard terminology for strands of dark fiber spliced together to form a continuous path between points A and Z? I have seen: - *fiber circuit* [but also seen used to denote a connection at the network layer over a physical fiber connection. This definition of circuit would include the dark fiber path, the transmitters and receivers and logic making up the data and network layers.] - *fiber loop *[ Does a loop define an electrical circuit with two physically separate positive and negative strands? In that case, is this a Bellhead remnant? ] I am particularly interested in last mile systems, but I don't see any reason that the term wouldn't be the same in the middle mile. thanks, Fletcher -- Fletcher Kittredge GWI 8 Pomerleau Street Biddeford, ME 04005-9457 207-602-1134