nanog mailing list archives
Re: CAT5 surge/lightning strike protection recommendations?
From: Mark Radabaugh <mark () amplex net>
Date: Tue, 13 Sep 2005 22:31:29 -0400
David Lesher wrote:
Surge protectors can not protect you from ground differential issues.
True enough - but 10/100 Ethernet is normally isolated by the transformer on the Ethernet transceiver. AFAIK there is not a connection between the signal lines and ground. Isolation is 1500V for the magnetics I checked. Off course all bets are off when lightning strikes since the voltage tends to be just a tad higher than 1500 volts..... Mark Radabaugh
Current thread:
- CAT5 surge/lightning strike protection recommendations? R.P. Aditya (Sep 13)
- Re: CAT5 surge/lightning strike protection recommendations? Jay Hennigan (Sep 13)
- Re: CAT5 surge/lightning strike protection recommendations? james edwards (Sep 13)
- Re: CAT5 surge/lightning strike protection recommendations? Mark Foster (Sep 13)
- Re: CAT5 surge/lightning strike protection recommendations? Marshall Eubanks (Sep 13)
- Re: CAT5 surge/lightning strike protection recommendations? Mark Radabaugh (Sep 13)
- Re: CAT5 surge/lightning strike protection recommendations? David Lesher (Sep 13)
- Re: CAT5 surge/lightning strike protection recommendations? Mark Radabaugh (Sep 13)
- Re: CAT5 surge/lightning strike protection recommendations? Todd Vierling (Sep 13)
- Re: CAT5 surge/lightning strike protection recommendations? Jerry Eyers (Sep 14)
- Re: CAT5 surge/lightning strike protection recommendations? Robert E . Seastrom (Sep 14)
- Re: CAT5 surge/lightning strike protection recommendations? Steven M. Bellovin (Sep 14)
- Re: CAT5 surge/lightning strike protection recommendations? Marshall Eubanks (Sep 14)
- Re: CAT5 surge/lightning strike protection recommendations? Steven M. Bellovin (Sep 14)
- Re: CAT5 surge/lightning strike protection recommendations? Steven M. Bellovin (Sep 14)
- Re: CAT5 surge/lightning strike protection recommendations? Mark Radabaugh (Sep 14)