On Sun, 04 Dec 2005 18:57:33 -0500, w_tom wrote:

I am completely befuddled why one cannot tell the difference
between a pointed verses a blunt lightning rod.

Read the orginal question, then answer it.

Dave Liquorice would have a dead network card (whose specs
would declare something like 2000 volts protection) because a
transient overwhelmed that 2000 volt NIC internal protection.
Just another example of why 'whole house' protection system is
installed - so that NIC protection is not overwhelmed.

The surge was induced in a few metres of network cable and found its
way to ground through the PCs earthed chassis, after frying the
decoupling Cs and blacking the board a bit. It also took out the
network side of the connected IP camera, but without visible damage,
the camera isn't earthed. That was the only damage, the camera still
worked (on it's serial interface) and the PC suffered no damage
neither did the modem connected to the phone line and PC or the modem
connected to the camera and phone line. Nothing else in the house
suffered. Oh and remember the strike was a couple of hundred yards up
the road.

Please explain how "whole house" protection would have protected this
NIC?

--
Cheers
Dave. pam is missing e-mail