Yes. Also, the upper limit on the dynamic range of the telephone network is somewhere around 3400 Hz, well within the range of human hearing. This protocol is designed to send data in a frequency range that most people can't hear, or at least can't hear very well.
Well, I suppose it depends on what you mean by 'affordable'. 10G is now affordable for small businesses, when up until recently it was strictly the domain of the large datacenter. I wouldn't put it in my house yet, but I see no reason to assume that 10G copper switches won't get to that price point eventually.
No, that switch is 10G copper, no sfp+ required. Thunderbolt and 10G ethernet aren't really competing in the same space, so I'm not sure why you brought it up.
Perhaps I'm in the minority, but all combined CO/smoke detectors I have ever owned have a distinctive alarm for CO. Usually a spoken alert warning of CO.
it would be simpler and more effective to integrate this technology into drink straws and other paraphernalia. Bars will be hesitant to replace their entire glassware supply.
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