The Cisco SFP-GE-SX-MM850-D is a hot-swappable Small Form-Factor Pluggable (SFP) transceiver designed to support Gigabit Ethernet (1000BASE-SX) applications over multimode fiber (MMF). Operating at a wavelength of 850 nm, it offers link distances up to 550 meters using OM2 fiber, making it ideal for short-reach networking environments such as campus backbones, enterprise LANs, and data center interconnects.
This SFP module provides 1.25 Gbps data transfer speed with LC duplex connectors, ensuring stable and efficient optical connections. Fully compliant with the IEEE 802.3z 1000BASE-SX standard and SFP MSA specifications, it guarantees interoperability with a wide range of Cisco and third-party networking equipment.
The SFP-GE-SX-MM850-D supports Digital Optical Monitoring (DOM) for real-time measurement of key parameters such as optical power, voltage, and temperature, ensuring enhanced network reliability and maintenance. With low power consumption and a compact, plug-and-play design, it provides flexible, scalable, and cost-effective Gigabit optical connectivity.
Key Technical Specifications
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Model: SFP-GE-SX-MM850-D
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Data Rate: 1.25 Gbps (1000BASE-SX)
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Wavelength: 850 nm
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Fiber Type: Multimode Fiber (MMF)
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Maximum Distance: Up to 550 m (OM2), 220 m (62.5 µm fiber)
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Connector Type: LC Duplex
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Hot-Swappable: Yes
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Digital Optical Monitoring (DOM): Supported
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Standards Compliance: IEEE 802.3z, SFP MSA
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Operating Temperature: 0°C to 70°C
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Power Consumption: <1W typical
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Compatibility: Cisco and SFP-compliant devices
Overview
The Cisco SFP-GE-SX-MM850-D provides reliable, high-speed Gigabit optical connectivity for short-reach applications. Its 850 nm laser, DOM support, and MSA compliance make it a robust choice for enterprise, campus, and data center networks needing dependable 1G fiber links.








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