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Small form-factor pluggable (SFP) transceivers represent a fundamental technology in numerous networks, facilitating communication between switches and crucial network components. SFPs are favored for their diminutive size, adaptable connection alternatives (copper or fiber optic), and hot-swappable feature.
Also known as mini-GBIC (gigabit interface converter), SFPs are engineered to be compact for use in confined networking environments yet robust enough to ensure swift communication between switches and other vital networking gear. They excel in expanding or modifying existing networks without necessitating a complete overhaul of the cable infrastructure.
SFP Transceiver Module Breakdown:
T: This category includes 100BASE-T, 1000BASE-T, 2.5GBASE-T, and 5GBASE-T. These transceivers typically support a distance of up to 100 meters over Cat5 cable.
SX: SX stands for short reach and is defined in IEEE 802.3z. For instance, 1000BASE-SX reaches up to 550 meters on multimode fiber, with a typical wavelength of 850nm.
LX: LX stands for extended reach and is also defined in IEEE 802.3z. 1000BASE-LX reaches distances of up to 10 kilometers on single-mode fiber, with a typical wavelength of 1310nm.
EX: Similar to LX, EX stands for extended reach and is defined in IEEE 802.3z. 1000BASE-EX reaches distances of up to 40 kilometers on single-mode fiber, with a typical wavelength of 1310nm.
ZX: Also falling under the extended reach category, ZX is defined in IEEE 802.3z. For instance, 1000BASE-ZX reaches distances of up to 70 kilometers (or 80 kilometers) on single-mode fiber.
EZX: Although not a standard type, EZX is defined by some manufacturers and widely accepted by customers. The "E" signifies extended, indicating it's a long-reach transceiver. EZX transceivers can reach maximum distances of 120 kilometers or even 160 kilometers, typically operating at a wavelength of 1550nm.
BX: BX refers to a bi-directional (BiDi) SFP transceiver. These transceivers use WDM (wavelength-division multiplexing) technology to transmit two wavelengths on a single fiber. BX transceivers typically support transmission distances ranging from 10 kilometers to 80 kilometers. BX usually contains two variants: BX-U (upstream) and BX-D (downstream), with each direction utilizing opposite wavelengths (e.g., 1310nm-TX/1490nm-RX and 1490nm-TX/1310nm-RX).
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Fibertronics, Inc. is in compliance with AS9100D and ITAR certifications, has been officially assessed by NSF-ISR. Our plenum rated (OFNP) assemblies meets NEC 770 compliance and standards. Custom cable assemblies are in compliance with EIA-455-171, FOPT-171, NECA-FOA-301, and IEC 61280-4-5 testing standards.
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