Information Technology Reference
In-Depth Information
The following specifications are covered in this section:
1000BaseLX
1000BaseSX
1000BaseCX
1000BaseT
1000BaseLX Long Wavelength GE
The IEEE 1000BaseLX uses long wavelength optics over a pair of fiber strands. The
specifications are as follows:
Uses long wave (1300 nm).
Use on multimode or single-mode fiber.
Maximum lengths for multimode fiber are as follows:
62.5 um fiber: 440 m
50 um fiber: 550 m
Maximum length for single-mode fiber is 9 um: 5 km.
Uses 8B/10B encoding with simple NRZ.
1000BaseSX Short Wave GE
The IEEE 1000BaseSX uses short wavelength optics over a pair of multimode fiber
stands. The specifications are as follows:
Uses short wave (850 nm).
Use on multimode fiber.
Maximum lengths are as follows:
62.5 um: 260 m
50 um: 550 m
Uses 8B/10B encoding with simple NRZ.
1000BaseCX GE over Coaxial Cable
The IEEE 1000Base-CX standard is intended for short copper runs between servers. The
specification is as follows:
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