How weird. We need exactly this too. A building we're in that used to be two, but were combined, and each have their own service drops. There's a difference in ground potential.
On Sun, Mar 14, 2010 at 6:30 PM, Greg Ihnen <os10ru...@gmail.com> wrote: > I've seen a telephone (copper pair) optoisolator which had a short piece of > fiberoptic cable inside. Each circuit on both sides of the cable had their > own highly isolated power supplies. This was the only thing that worked in > the Amazon region to stop phone equipment from getting wiped out during the > intense electrical storms. The beauty of this device was it didn't require a > first class ground system to work, in fact it didn't require any ground. A > ground would just present up a difference in potential between the phone > line and ground and encourage destruction. The telco side of this thing > would just float at what ever potential the telco's lines were presenting > and the on site equipment on the other side of this thing never saw that > potential. Has anyone seen such a thing for Ethernet? > > Greg > > > > -------------------------------------------------------------------------------- > WISPA Wants You! Join today! > http://signup.wispa.org/ > > -------------------------------------------------------------------------------- > > WISPA Wireless List: wireless@wispa.org > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ > -------------------------------------------------------------------------------- WISPA Wants You! Join today! http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
