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You Can't Kill Coax

It's funny how certain legacy security technologies seem to keep hanging on long past the handwriting of their demise is on the wall or find new life by being repurposed. A large number of analog cameras have shipped over the last 5 years, though their share of the market has steadily declined. Their close cousin, analog-to-fiber optic transceivers, have also stubbornly resisted extinction. But while these electronic product products are sure to go sooner or later, old transmission media doesn't have to. It's easy to see that fiber optic cable can be repurposed to carry any information for which it has the capacity. It's more of a stretch to think the same about coax, but coax lives on. Why? Because it's in place and it has high bandwidth - generally higher than twisted pair.
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