From: dave.garland@wizinfo.com   
      
   On 10/11/2020 5:02 PM, bob prohaska wrote:   
   > Eric Tappert  wrote:   
   >>   
   >> I don't know what the current standard is, but the "old Bell System"   
   >> guidance for central offices was 8 hours of battery, standby generator   
   >> with 24 hours of fuel in the day tank and a week's worth of fuel   
   >> on-site.  A few years ago the FCC issued a ruling that required COs to   
   >> have 24 hours of backup power and cell sites 8 hours.  That was the   
   >> first federal guidance on the issue and was issued in response to   
   >> hurricane Katrina and the fact that first responders were using cell   
   >> phones for communication.  With the vastly expanded number of cell   
   >> sites required for 5G, I don't know if the rule still is in force.   
   >   
   > I think it does help, in that if the CO stays up a week it's possible   
   > DSL over POTS might stay up for that long also. Not certain, but   
   > possible.  Please warn me if this is a grossly-over-optimistic   
   > interpretation.   
      
   In Minneapolis, Centurylink DSL has no power backup whatsoever at the   
   pedestals. When the lights go out, the DSL goes out even if you have   
   UPS. Don't know what the situation is with their fiber.   
      
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