Re: Puerto Rico just lost internet?

[Sean Donelan <sean () donelan com>]

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