[Server-devel] 12 Volt power system for School Servers.
dfarning at activitycentral.com
Wed May 29 17:51:47 EDT 2013
Any thoughts on powering the AP?
On Wed, May 29, 2013 at 4:45 PM, James Cameron <quozl at laptop.org> wrote:
> On Wed, May 29, 2013 at 04:38:06PM -0500, Jerry Vonau wrote:
> > Is the inverter really needed for a XO? The step-down transformer used
> > on the XO puts out 13.5v but the XOs only need 11 volts to charge.
> > Therefore I believe you could run and/or charge the XOs directly from a
> > 12v source like a storage battery, perhaps though a regulator. I just
> > don't want to cut the cord off of a working power supply to find
> > out.
> Cut the cord about 20cm from the power supply, and fit a screw
> terminal, so the cord can be reassembled if needed.
> Yes, the XO will safely run direct from any 12V lead-acid storage
> battery. The battery will not permit the voltage to exceed what the
> XO can accept.
> (It isn't technically a step-down transformer, but a switch-mode power
> supply, but no matter.)
> James Cameron
Activity Central: http://www.activitycentral.com
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