Longer XO transformer power cord in the plans?

Sascha Silbe sascha-ml-ui-sugar-olpc-devel at silbe.org
Sun May 31 04:46:13 EDT 2009

On Sun, May 31, 2009 at 03:16:53PM +1000, James Cameron wrote:

> 1.  Earthing.  The current design has no earth at the AC end, and is
> isolated in relation to the DC end.  An earthed AC plug in some
> countries produces a more reliable and positive insertion and 
> anchoring.
All "travel adapters" (power outlet adapters) I've come across so far 
had no earthing so would be impossible to use (unaltered). Of course 
this wouldn't be much of a change as the current wall warts also don't 
fit any adapter I've seen at shops. At SugarCamp in Paris, quite a few 
people (including myself) had "custom" ones, i.e. with mechanic 
Personally, I feel comfortable making minor mechanic changes to an 
adapter, but I won't usually dare using a non-earthing adapter with a 
device having an earthed plug (unless I know for sure this is safe).

Actually, if you are able to use a standard plug (e.g. IEC-60320-C5/C6) 
at the power supply end, above won't apply at all as it's usually easy 
to get a matching cable, no travel adapter needed. :)

I hope future XO versions will still have the same broad power input 
specs as the XO-1. It's been very useful already (e.g. cable-only "car 
adapter", no voltage conversion or even voltage limit necessary).

CU Sascha

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