OEMfibers 1000BASE-SX SFP Multimode VS. 1000BASE-LX SFP Single-mode

Standard

SX stands for short wavelength. The typical specifies a distance capability between 220 meters and 550 meters. The “LX” in 1000BASE-LX means lengthy wavelength, indicating that version of Gigabit Ethernet is supposed for make use of with long-wavelength transmissions (1270 - 1355nm) over long cable runs of fiber optic cabling. Juniper EX-SFP-1GE-LX can stepped on both single mode fiber and multimode fiber with a distance as high as 10 km and 550 m, respectively.

Types of Optical Fibers

1000BASE-LX single-mode SFP module will work with single-mode fiber to be able to perform both transmission and reception of data. Whereas 1000BASE-SX multimode SFP transceiver will continue to work with multimode fiber, that includes a thicker core and allows higher speed at shorter distance.

Transmission Distance

1000BASE-LX single-mode SFP transceivers are mostly found in long distances (up to 10 km) transmission environment. 1000BASE-SX SFP multimode is only used for short distances (up to 550m), like in small area or within the building.

Wavelength

1000BASE-LX single-mode SFP works in 1310nm, whereas 1000BASE-SX SFP modules multimode works in 850nm.

Transmission Medium

1000BASE-LX single-mode SFP transport the optical signal for lengthy distance, but there is one signal in the “tunel”. 1000BASE-SX multimode SFP has many optical signal in a single “tunel”, the signals may affect one another. So that it can transport many sort of optical signals.

Dispersion

1000BASE-SX multimode optics are affected by modal dispersion, since the light rays follow different paths through the fiber and reach differing times on the other end. That is the primary reason the length on this kind of optic is bound. Whereas 1000BASE-LX single-mode optics are influenced by wave guide dispersion, due to the light heading down the fiber being wider compared to the core of the fiber. This enables more control of the road of the photons, but is even more suffering from micro bends, twists and pressure on the fiber.Know more:www.oemfibers.com

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