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Cisco EPC3010, power requirements

Hi,

 

I apologize if this is in the incorrect forum, it looked like the best fit.

 

I'm wondering about voltage tolerances of the Cisco EPC3010 cable-modem.  I understand it's normally using a 12V wallwart-type power supply, but I'm betting there's a decent set of regulators internally, and that it doesn't need *exactly* 12Vs to be happy.

 

The reason I'm wondering is that if it'll be happy with a range about 10 or 11 to 13Vs, it could live happily running directly off of a lead acid backup battery during power outages.  Running directly would offcourse be simpler than having to set up a 12V-nominal -> 12V-exact regulator.

 

Hope someone can educate an inquiring mind.

 

Terje

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