Caleb Tennis wrote:
We had a lightning strike nearby yesterday that looks to have come inside our facility via a feeder circuit that goes outdoors underground to our facility's gate.
What's interesting is that various POE switches throughout the entire building
seemed to be affected in that some of their ports they just shut down/off.
Rebooting these switches brought everything back to life. It didn't impact
anything non-POE, and even then, only impacted some devices. But it was spread
across the whole building, across multiple switches.
I was just curious if anyone had seen anything similar to this before? Our
incoming electrical power has surge suppression, and the power to the switches
is all through double conversion UPS, so I'm not quite sure why any of them
would have been impacted at all. I'm guessing that the strike had some impact
on the electrical ground, but I don't know what we can do to prevent future
strikes from causing the same issues. Thoughts?
I use these on any cable that leaves my building.
http://www.amazon.com/APC-PNET1GB-ProtectNet-Standalone-Protector/dp/B000BKUSS8
It seems to play well with PoE (I put mine before the injector), and
also works well with T1s and POTS.
-Paul
