> The correct answer is use fiber. > Not sure I would bring an inter building link in copper onto an expensive > core switch though.
Yeah. > Don't know of anything in higher density than "one port”. This on Amazon: https://smile.amazon.com/Protector-Lightning-Suppressor-Protection-TP323/dp/B07P3XDXN3/ref=sr_1_6?keywords=apc+PNET1GB&qid=1565722471&s=gateway&sr=8-6 …but I haven’t used it, so can’t specifically recommend. -Bill
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