Protecting 1Gb Ethernet From Lightning Strikes
Matthew Crocker
matthew at corp.crocker.com
Tue Aug 13 23:56:32 UTC 2019
Could you use a transceiver for the 1000Base-T? copper <-> fiber <-> copper that will create an ‘air gap’ on the data circuit. You still run the risk of a lightning strike entering through the transceiver power. You could filter that through a -48VDC power supply, rectifier/inverter pair.
From: NANOG <nanog-bounces at nanog.org> on behalf of Javier J <javier at advancedmachines.us>
Date: Tuesday, August 13, 2019 at 2:23 PM
To: "nanog at nanog.org" <nanog at nanog.org>
Subject: Protecting 1Gb Ethernet From Lightning Strikes
I'm working with a client site that has been hit twice, very close by lightening.
I did lots of electrical work/upgrades/grounding but now I want to focus on protecting Ethernet connections between core switching/other devices that can't be migrated to fiber optic.
I was looking for surge protection devices for Ethernet but have never shopped for anything like this before. Was wondering if anyone has deployed a solution?
They don't have a large presence on site (I have been moving all of their core stuff to AWS) but they still have core networking / connectivity and PoE cameras / APs around the property.
Since migrating their onsite servers/infra to the cloud, now their connectivity is even more important.
This is a small site, maybe about 200 switch ports, but I would only need to protect maybe 12 core ones. but would be something I could use in the future with larger deployments.
it's just a 1Gbe network BTW.
Hope someone with more experience can help make hardware recommendations?
Thanks in advance.
- Javier
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