Dan N.;36240 wrote:
Thats a good point ED, also I noticed when the power is out, not evey cable provider's cable and internet will work. The old cable company I had, would not work when the power is out around the neighborhood, and then I switched to another provider for better cost and packages found that their's did work in an outage. Was kinda supprised, cause I assumed no cable or internet would without power, but i guess it depends on the provider and how they send the signal. :confused:
The cable systems have pole-mounted (or underground) power supplies every few blocks, fed from the nearest AC utility line. Those contain lead-acid batteries for backup. The power supply feeds 60 or 90 VAC superimposed on the coax, or a separate line for fiber, to power fiber-to-coax converters, line-extender amps, etc. Obviously if the lead-acid battery runs down, or is already bad, everything will go down.