1717(C) Herbert Haas 2005/03/111000BaseX Two different wavelengths supported Full duplex only 1000Base-SX: short wave, 850 nm MMF 1000Base-LX: long wave, 1300 nm MMF or SMF 1000Base-CX: Twinax Cable (high quality 150 Ohm balancedshielded copper cable) About 25 m distance limit, DB-9 or the newerHSSDC connectorGigabit Ethernet can be transmitted over various types of fiber. Currently (atleast) two types are specified, short and long wave transmissions, using 850 nmand 1300 nm respectively. The long wave can be used with both single mode(SMF) and multimode fibers (MMF). Only SMF can be used for WANtransmissions because of the much lower dispersion effects.Note that there are several other implementations offered by different vendors,such as using very long wavelengths at 1550 nm together with DWDMconfigurations.The twinax cable is basically a shielded twisted pair cable.

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