We use two fiber transceivers and a jumper on our ethernet when we
want to have electrical isolation.

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/

Reply via email to