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I'm not sure how much this kit is actually used in industry. I've bought and installed a lot of Siemens industrial control hardware, but I've never even seen any of their industrial networking (not counting Profibus or Profinet) hardware. Users seemed to go for either IT type equipment, or they used other industrial brands. The Siemens stuff always seemed to be massively overpriced for what you got, and there's really no perception that their kit is any better quality (at least not these days).