Scott Helms wrote: >> Bot of you are wrong. >> >> There is no reason fiber is more expensive than copper, which means SS >> is cheap, as cheap as copper.
> Copper isn't cheap, its just there already. Unbundled copper costs about $10/M or so, which means SS fiber can't be more expensive. > What is SS? Single star. > No, most of the cost isn't in running the cabling. Today most of the cost > is in lighting the fiber, though that varies on where you're running the > cabling and what gear you're using to light it. On page 11 of google slide, http://static.googleusercontent.com/external_content/untrusted_dlcp/research.google.com/en/us/pubs/archive/36936.pdf it is stated that "Trenching consists of 70-80% of the total cost for infrastructure build". > PON is preferred by carriers because it works in their existing equipment Their existing equipment was SS copper and MDF. > Planning for a carrier network > is very different (different requirements) than for a greenfield muni > system. Surely, transition from copper to fiber is not trivial, but it helps a lot that fiber cables are thinner than copper cables. Masataka Ohta