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ISPs or dark fiber providers have detailed maps aligning with road networks. If there’s a suspected fiber cut they’ll run an OTDR from the ODF box or the source
by LuxuriousCheese 6y ago
ISPs or dark fiber providers have detailed maps aligning with road networks. If there’s a suspected fiber cut they’ll run an OTDR from the ODF box or the source photonic equipment which will show high reflection/ signal degradation where the break occurred to the nearest 100m dependant on test granularity.
- swarnie_ 6y ago> ISPs or dark fiber providers have detailed maps aligning with road networks. Most of the time. I worked a summer for Virgin (UK) basically digging holes to run cables. I'd say 1 in every 6-7 jobs we dug the hole and found no existing Virgin inf. in the ground. You'd have to come back the next day hopefully with better information to try again.