On Feb 24, 2010, at 5:55 PM, Philip Pemberton wrote:

> I doubt anyone's likely to have a >40V PSU with a 5.5x2.5mm DC power  
> plug on it

We had a series of mini-disasters when people plugged their laptops  
into the physically compatible IP-phone supplies (which are ... 48V;  
compatible with PoE and all manner of telco standards...)

  :-)
BillW

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