Gigabit Interfaces Converter

GBIC ( G iga' b' it I nterface C onverter) is a module which converts a Electrical signal into Optical signal.

It is used on the equipment networks (Commutateur S, Routeur S,…) to offer a flexibility in the type of desired signal.

Principal types of GBIC

  • 1000Base-SX : modulate optical conversion of low power (signal obtained starting from diode-laser), whose maximum distance is of 220m and who functions only on fiberoptic Multimode (500m on if one uses a particular Fiberoptic).
  • 1000Base-LX: modulate optical strong power (signal obtained containing laser, whose cost is more important than the diode-laser), whose maximum distance can go until 10km on fibers of the type Monomode and 550m on multimode fiber.
  • 1000Base-LX70 (or 1000Base-ZX): modulate optical very strong power whose maximum distance is of 70km.

The most used connector industry is SC (SC/PC) in duplex (a fiberoptic for the emission, a fiberoptic for the reception).

There also exists of GBICs 1000Base-T.

GBIC SFP or XFP (Small Form-Factor Pluggable, also called minis-GBIC) always have the same function but in a format much more reduced to decrease the obstruction on the equipment, will replace GBICs traditional.

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