100BASE-FX is a version of fastethernet over optical fibre. It uses two strands of multimode fibre[?] for receive and transmit. Each segment has a maximum length of 412 meters.
... Dumont d'Urville, (1790-1842), explorer of the Pacific and Antarctica
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Eric the Red, (c.950-1003), explored and colonized Greenland
Leif Ericsson, (born 970), ...