Things are getting only worst so far - most of the island is offline - see the screenshot or the link here live https://stat.ripe.net/PR#tabId=routing
On Wed, Sep 20, 2017 at 8:29 PM, Javier J <jav...@advancedmachines.us> wrote: > Thank you for this info! > > > I think most of us kind of know there are backup power strategies in place > but this is very detailed and appreciated. The little communication I have > had with family on the island they tell me no internet, no cable tv, etc so > this timing is good to know for when the few cell towers that survived > start to go dark. > > - J > > > > On Wed, Sep 20, 2017 at 4:36 PM, Sean Donelan <s...@donelan.com> wrote: > > > On Wed, 20 Sep 2017, Javier J wrote: > > > >> How long usually till generators at cell sites run out of juice? > >> > > > > Rough, every provider is different, backup power hierarchy: > > > > Neighborhood pole boxes: 1-4 hours, batteries only. May be re-charged > with > > portable generators when safe to access area. There is likely severe > > physical damage to neighborhood lines. > > > > Cell towers: 8-12 hours battery. Some, not all, towers have a natural gas > > generator or 24 hours diesel generator > > > > Central offices and cable headends: 8-12 hours battery, 1-3 days diesel > > generators. Core, tandem, and hub sites usually have more backup. > > > > Major colocation data centers: <1 hour battery, 3-14 days diesel > generators > > > > Submarine cable landing points and satellite control stations: 24 hours > > battery, 30 days diesel generators > > > > >
