On Sun, Jul 27, 2008 at 07:19:56PM -0700, Jim Lux wrote: > bear in mind that ordinary ethernet both coax and twisted pair is > galvanically isolated.
This is strange, because I've seen (small) sparks and received (mild) shocks from both, in two different locations. As you say, http://www.apcmedia.com/salestools/FLUU-5T3TLT_R1_EN.pdf claims Ethernet is immune, yet I've read somewhere that Gigabit ethernet is more susceptible than Fast Ethernet. I've got (cheap) UPSen for almost all equipment, maybe they're the problem and not the switching power supplies. In any case I'll have an electrician diagnose the problem. Unfortunately, I anticipate his solution would involve pulling through a new large-crossection ground wire to several locations. It is at this point that lack of wall conduits will become quite painful. -- Eugen* Leitl <a href="http://leitl.org">leitl</a> http://leitl.org ______________________________________________________________ ICBM: 48.07100, 11.36820 http://www.ativel.com http://postbiota.org 8B29F6BE: 099D 78BA 2FD3 B014 B08A 7779 75B0 2443 8B29 F6BE _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf