So where is the problem ?, at my pole , or further up the network ? at the exchange ?
Don’t know if Openreach use such, but specialised “PON-aware” optical time domain reflectometers (OTDR) have been around for years - this tool effectively maps the PON and shows for example the splitter node and distances etc. If there’s a total discontinuity / break in the fibre ot will show that too - together with cable distances…one can do the same tests with a regular OTDR but it is slightly more manual.



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