The 100base FX series is a type of computer. It does not have
speakers included, but it is highly customizable so the consumer
can choose from a wide variety of speakers to add to the 100base FX
series.
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100Mbit/s
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One fiber optic pair
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I believe you mean 100Base-FX. This is so-called Fast Ethernet
over two strands of optical fibre. For more about it you might wish
to consult the wikipedia Fast Ethernet page.