On 5/8/20, Baldur Norddahl <baldur.nordd...@gmail.com> wrote: > On Thu, May 7, 2020 at 11:14 AM Masataka Ohta < > mo...@necom830.hpcl.titech.ac.jp> wrote: > >> >> Investment for FTTH is 10 times or more than that for plain DSL. >> >> > We are assuming the copper plant is already there otherwise I will > respectfully disagree. > > However the economic is not as simple as you might think. Lets do some > calculations. > > Assume we can build the fiber plant for 1 million USD (*). This fiber can > be depreciated over 25 years. That means we only take USD 40,000/year of > the company profit. > > The copper plant is already there but the DSLAM is missing. Assume USD 100 > per port plus USD 100 per DSL CPE. This equipment can only be depreciated > over 5 years. With 1700 ports this gives USD 68,000/year of the company > profit. >
a 48 port dslam is 2200 (still awaiting cots on line cards for above mentioned chassis) so its about 45 per port, CPE is about 50 a device in bulk (inc 4 gb ports, wifi) The copper exists, there is no ripping it out Due to location RF links are used for data, so no need to give each cabin "future proof" since unless a carrier will run fibre to us for 100's miles at their cost - it just aint happenin, the cost is extremely prohibitive. > Not claiming these number are anything but fantasy as I know nothing about > the layout of the project. Just illustrating that sometimes more money now > does not necessary means less profit for a company. > > (*) yes 1700 installs could be done for that in optimum circumstances. It > could also be much more expensive, all depending. > > Regards, > > Baldur >
