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Explanation: It's difficult, without additional context, to understand the register of the text, and hence, what is needed here. A "punto de red" can, IMO, be considered almost non-technical language, so that's no help.
"Caja de interacción" is (literally) an "interaction box," or the hardware that would be used to allow multiple computers to connect to the network. Without looking at the hardware, I'd imagine computer types would call it a "multiport hub"; a somewhat less technical description might simply be "classroom network connection station."
Alex Lane Local time: 17:18 Works in field Native speaker of: English PRO pts in category: 2