1000BASE-SX SFP Module | 1.25G 850nm 550m MMF Transceiver | Cisco/Ubiquiti/Juniper Compatible
- Data Rate: 1.25Gbps (Gigabit Ethernet)
- Reach & Media: Up to 550m transmission over 50/125µm MMF (OM2/OM3).
- Standard: Compliant with MSA SFP Multi-Source Agreement and IEEE 802.3z.
- Compatibility: Generic coding, fully compatible with switches accepting open standard SFP SX modules.
- Reliability: Built-in DOM/DDM for real-time monitoring; < 1W low power consumption.
Product Overview
The WOLON SX SFP Module is a high-performance and cost-effective optical transceiver designed for Gigabit Ethernet and 1G Fibre Channel applications. It is engineered to meet the strict demands of modern data center and enterprise networking environments.
This 1000BASE-SX SFP Transceiver operates at a wavelength of 850nm using Vertical Cavity Surface Emitting Laser (VCSEL) technology. It provides a reliable connection up to 550 meters over multimode fiber (MMF). Perfectly compliant with the SFP MSA standard, this SFP-SX module is the ideal replacement for major brand transceivers, offering the same performance at a fraction of the cost.
Key Features
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High Performance: Supports dual data-rate of 1.25Gbps/1.0625Gbps.
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Standard Interface: Duplex LC connector interface for easy integration.
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Digital Diagnostic Monitoring (DOM): Internal calibration or external calibration compliant with SFF-8472.
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Wide Compatibility: Works seamlessly as a generic 1000BASE SX SFP module for broad switch compatibility.
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Hot-Pluggable: Allows for easy installation without powering down the host system.
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Durability: Metal enclosure for lower EMI and industrial-grade reliability.
| Specification | Details |
| Form Factor | SFP (Small Form-factor Pluggable) |
| Data Rate | 1.25 Gb/s |
| Wavelength | 850 nm |
| Max Distance | 550m (on 50/125µm MMF) |
| Fiber Type | MMF (Multimode Fiber) |
| Connector | Duplex LC |
| Transmitter Type | VCSEL |
| Protocols | Gigabit Ethernet, Fibre Channel |
| Tx Power | -9.5 ~ -3 dBm |
| Receiver Sensitivity | < -17 dBm |
| Commercial Temperature | 0 to 70°C (32 to 158°F) |
Application Scenarios
Our SX SFP Transceiver is widely used in various networking architectures:
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Enterprise LAN: Gigabit Ethernet over multimode fiber (1000BASE-SX) for office backbone connections.
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Data Center Networking: Switch-to-switch interfaces, Switched backplane applications, and Router/Server interfaces.
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Storage Area Networks (SAN): High-speed fiber channel links.
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ISP Aggregation: Cost-effective short-range uplinks using SFP SX technology.
FAQ: About 1000BASE-SX SFP Modules
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Q: What is the difference between SX and LX SFP?
A: SX (Short Range) uses 850nm wavelength and works with Multimode fiber up to 550m. LX (Long Range) uses 1310nm and works with Singlemode fiber up to 10km.
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Q: Do I need OM3 or OM4 cable for this module?
A: This SX SFP module works with both. It reaches 220m on OM1, and up to 550m on OM3/OM4.
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