Re: [Server-devel] [support-gang] [UKids] Lightning kills underground Ethernet too; PoE wiring/voltages non-trivial!

2016-01-11 Thread James Cameron
No, because the physics mechanism of inducing ground currents is based on magnetic fields. PVC pipe does not block magnetic fields. When a strike occurs, there is a strong current following the path of the strike, and then into the various parts of the earth around you. Imagine an upside down fl

Re: [Server-devel] [UKids] Lightning kills underground Ethernet too; PoE wiring/voltages non-trivial!

2016-01-11 Thread Samuel Greenfeld
If you are going to use any cable outdoors or where it may be exposed to the elements, getting cable rated for the desired outdoor use may be as important as its speed rating. You don't want the cables getting water in them, causing interesting shorts and ground currents. Cables routed inside of

[Server-devel] Lightning kills underground Ethernet too; PoE wiring/voltages non-trivial!

2016-01-11 Thread Adam Holt
Just a quick digest below for microdeployments -- some summary excerpts for those who missed both interesting/longer discussions today: - Power-over-Ethernet (PoE) might seem like magic cure (when installing Wi-Fi Access Points across classrooms not having nearby electrical outlets) but P

Re: [Server-devel] [support-gang] "Modern" Browser XO-1

2016-01-11 Thread Adam Holt
On Mon, Jan 11, 2016 at 10:33 AM, Sora Edwards-Thro wrote: > Hi all, > > What's the most "modern" browser someone could install on an XO-1? (either > Sugar or Gnome side). What options do we have for upgrading to support > specific apps? > > This is a generic question that I figure others would b