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The equipment used for communications over multi-mode optical fiber is less expensive than that for single-mode optical fiber. [1] Typical transmission speed and distance limits are 100 Mbit/s for distances up to 2 km ( 100BASE-FX ), 1 Gbit/s up to 1000 m, and 10 Gbit/s up to 550 m.
Multi-mode fiber, LC connector, with black or Beige color coding SX – 850 nm, for a maximum of 550 m; Multi-mode fiber, LC connector, with blue color coding FX – 1300 nm, for a distance up to 5 km. LFX (name dependent on manufacturer) – 1310 nm, for a distance up to 5 km. Single-mode fiber, LC connector, with blue color coding
The first 10 Gigabit Ethernet standard, IEEE Std 802.3ae-2002, was published in 2002. Subsequent standards encompass media types for single-mode fiber (long haul), multi-mode fiber (up to 400 m), copper backplane (up to 1 m) and copper twisted pair (up to 100 m). All 10-gigabit standards were consolidated into IEEE Std 802.3-2008.
10GBASE-LX4 is a port type for multi-mode fiber and single-mode fiber. It uses four separate laser sources operating at 3.125 Gbit/s and Coarse wavelength-division multiplexing with four unique wavelengths around 1310 nm. Its 8b/10b PCS is defined in IEEE 802.3 Clause 48 and its Physical Medium Dependent (PMD) sublayer in Clause 53. [24]
The most common type of single-mode fiber has a core diameter of 8–10 micrometers and is designed for use in the near infrared. Multi-mode fiber, by comparison, is manufactured with core diameters as small as 50 micrometers and as large as hundreds of micrometers.
1000BASE-SX is an optical fiber Gigabit Ethernet standard for operation over multi-mode fiber using a 770 to 860 nanometer, near infrared (NIR) light wavelength. The standard specifies a maximum length of 220 meters for 62.5 μm/160 MHz×km multi-mode fiber , 275 m for 62.5 μm/200 MHz×km, 500 m for 50 μm/400 MHz×km, and 550 m for 50 μm/500 ...
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Most WDM systems operate on single-mode optical fiber cables which have a core diameter of 9 μm. Certain forms of WDM can also be used in multi-mode optical fiber cables (also known as premises cables) which have core diameters of 50 or 62.5 μm. Early WDM systems were expensive and complicated to run.
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