"The Natural Philosopher" wrote in message
...
John Williamson wrote:
The Natural Philosopher wrote:
David Paste wrote:
On Monday, April 2, 2012 10:14:54 PM UTC+1, dennis@home wrote:

The Pi might get killed by PoE.

PoE? What's that?

Proably this

http://en.wikipedia.org/wiki/Power_over_Ethernet

but what it has to do with a Pi I have no idea..but then it is dennis
who said it, so its pretty much guaranteed to be more or less a techno
wamk fantasy of some sort.

Dennis likes to drop these this in so he can tell you about something he
read about yesterday...

On the other hand ot might be this

http://rationalwiki.org/wiki/Poe%27s_Law

which would seem to apply to what dennis laughingly refers to as his
mind.


Just for once, Dennis got something right. The first batch of Rasperry
Pis were made with non-isolating ethernet sockets, and applying Power
Over Ethernet would fry the board. So they had to delay release while the
factory installed the correct sockets with the built-in isolating
transormer.


No, Deniis still dint get it right.

He said 'the Pi'. Not 'Pis' or 'your Pi' or 'the Pis' any of which might
refer to one or more rasberry Pis. No, he used the term 'the Pi' which has
only one meaning outside of discuussion of a particular board (which we
weren't') and that is the whole company or concept of Rasberry Pis. And it
would be hard to imagine them dying..juts on account of a batch of faulty
production units,.

What cr@p.


Secondly if you bother to THINK about it, one thing you can be 100% sure
of in todays H & S culture is that whatever else may or may not be inside
a PoE adapter some way of making sure than mains voltages do not appear
anywhere on the RJ45 socket is likely to be one of them.

So its more likely than not that PoE will actually be far far less likely
to fry one of the faulty units.

So you think 18+V is not going to affect the Pi chips then.
You really are stupid.


Dennis has succeeded in making you take a casual glance and speak without
thinking in his defence: You must be relatively new here or you would have
learnt that the default stance is that anything dennis says is wrong or
ill conceived and understood or badly expressed.

Where as you are wriggling and hoping nobody will notice your cr@p.


The rare occasion that he is in fact right is usually over something so
well known and trivial, it's not worth commenting on.

Where as you are never right.