Single Source Cellular communication may be allowed by the AHJ. I have been told that in order to meet the intent of NFPA -72 the cell tower must have 24 hour back up as well? Has anyone head of this?
The FCC imposes specific mandates on wireless carriers including backup electric power at most cell sites. So I an not sure what your question is. I appears to be the performance intent of NFPA 72 to ensure fire signals are transmitted on a 24/7 basis.
I kind of think not a 72 requirement.
My two takes,
If it does not hit one tower it should hit another.
Plus if the monitoring company does not hear from it the fire alarm every so often, forgot the the frequency, someone has to be notified,,, I need to look that up.
Check the info on page 41/42 and see if that indirectly answers your question
Unless you are in the middle of no where, there are plenty of cell towers to hit, just like using your phone, they move from cel to cell
I do believe that there should be more guidelines for cell tower back up power. Up here in northern California during the wild fires, cell towers were down for weeks and signals were not being received at the central stations of many companies.
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