Item Spotlights

● Operating Data Rate up to 1.25Gbps

● Up to 550m

● Single 3.3V Power Supply and LVTTL Logic Interface

● Hot-Pluggable SFP Footprint Duplex LC Connector

● Interface Class 1 FDA and IEC60825-1 Laser Safety Compliant

● Operating Case Temperature Standard: 0C~+70C and Industrial: -40C~+85C

● Compliant with SFP MSA Specification

● Compliant with SFF-8472

 

Description

Compatible	SFP GE SX	Vendor Name	FB-LINK
Form Factor	SFP	Max Data Rate	1.25Gbps
Wavelength	850nm	Max Cable Distance	550M
Connector	Duplex LC	Media	MMF
Transmitter Type	VCSEL	Receiver Type	PIN
TX Power	-9.5~-3dBm	Receiver Sensitivity	＜-17dBm
Bit Error Ratio (BER)	1000BASE-SX guarantees a link BER of 1E-12 when supporting 550m on MMF	Receiver Overload	-3dBm
Power Consumption	≤0.8W	Extinction Ratio	＞9dB
DDM/DOM	Supported	Commercial Temperature Range	0 to 70°C (32 to 158°F)
Protocols	IEEE 802.3z, SFF-8472, SFP MSA (INF-8074i) Compliant	Warranty	3 Years

 

 

 

High-Performance Gigabit SFP Optical Module for Modern Fiber Networks

Fiber optic technology continues to revolutionize network infrastructure, and choosing the right optical transceiver makes all the difference in deployment success. The 1.25Gbps SFP GE SX optical module stands out as a reliable solution for organizations implementing gigabit connectivity across their network infrastructure, particularly in FTTX deployments where short to medium-range transmission is critical.

Understanding the SFP GE SX Optical Transceiver

This compact hot-pluggable transceiver operates at wavelengths of 850nm, utilizing VCSEL (Vertical Cavity Surface Emitting Laser) technology to deliver consistent gigabit speeds over multimode fiber. With its duplex LC connector interface, the module seamlessly integrates into existing network architectures without requiring specialized installation procedures.

The device supports transmission distances reaching 550 meters over OM2 multimode fiber, with extended capabilities when paired with higher-grade fiber types such as OM3 or OM4. This flexibility makes it particularly valuable for FTTX network operators who need adaptable solutions across diverse deployment scenarios.

Why This Matters for FTTX Infrastructure

FTTX networks demand optical components that balance performance with cost-effectiveness. Whether you're implementing fiber-to-the-home (FTTH), fiber-to-the-building (FTTB), or fiber-to-the-curb (FTTC) solutions, this transceiver addresses common challenges:

Network Flexibility: FTTX deployments often involve varied distances between central offices and end users. The 550-meter range covers typical last-mile scenarios while maintaining full gigabit throughput.

Temperature Resilience: With industrial-grade variants operating from -40°C to +85°C, the module performs reliably in outdoor cabinets and environmentally challenging FTTX installations.

Digital Diagnostics: Built-in DDM (Digital Diagnostics Monitoring) functionality enables real-time performance monitoring, crucial for maintaining service level agreements in FTTX networks where proactive maintenance prevents customer-facing outages.

Technical Advantages That Drive Performance

The transceiver's single 3.3V power supply requirement simplifies power management in densely populated switch configurations. Power consumption remains below 0.8W per module, reducing operational costs across large-scale FTTX deployments where hundreds of ports may be active simultaneously.

Error correction capabilities ensure bit error rates of 1E-12 or better, meeting stringent requirements for voice, video, and data services delivered through FTTX infrastructure. The 9dB extinction ratio contributes to clean signal transmission, minimizing crosstalk in multi-tenant FTTX environments.

Compliance with IEEE 802.3z and SFP MSA standards guarantees interoperability across equipment from multiple vendors, protecting infrastructure investments and providing upgrade flexibility as FTTX networks evolve.

Real-World Applications Beyond FTTX

While optimized for FTTX scenarios, this optical module excels in various deployment contexts:

Enterprise Campus Networks: Connecting building distribution frames where fiber runs don't exceed 500 meters

Data Center Top-of-Rack: Linking servers to aggregation switches within the same facility

Industrial Automation: Providing deterministic gigabit connectivity in manufacturing environments

Surveillance Systems: Supporting high-bandwidth IP camera infrastructure across corporate or municipal installations

Maximizing Value Through Smart Deployment

Pairing these transceivers with quality OM2 or OM3 multimode fiber ensures optimal performance. The LC duplex connector interface simplifies cable management compared to older SC connector systems, particularly important in space-constrained FTTX distribution cabinets.

Hot-pluggable design means network administrators can swap modules without powering down switches, minimizing service disruption during maintenance windows. This proves especially valuable in FTTX networks where downtime directly impacts residential or business customers.

The three-year warranty provides peace of mind for long-term FTTX infrastructure investments, reducing total cost of ownership when calculating lifecycle expenses.

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Frequently Asked Questions

What fiber types work with this SFP module?

The module functions with all standard multimode fiber grades including OM1, OM2, OM3, and OM4. While designed primarily for OM2 (550m range), it achieves similar or better performance with higher-grade fibers, making it future-proof as network infrastructure upgrades occur.

Can I mix this module with different brands in my FTTX network?

Absolutely. Standards-compliant SFP modules from reputable manufacturers maintain interoperability. The transceiver follows SFP MSA specifications, ensuring it works with switches and routers from major networking vendors without compatibility issues.

How does DDM functionality benefit FTTX operators?

Digital diagnostics provide real-time monitoring of temperature, voltage, transmit power, receive power, and laser bias current. FTTX network operations teams use this data to predict failures before they occur, schedule preventive maintenance, and troubleshoot connectivity issues without dispatching technicians to remote sites.

What's the difference between this and single-mode SFP modules?

This multimode variant uses 850nm wavelength over thicker-core fiber, ideal for shorter distances up to 550 meters. Single-mode versions operate at 1310nm or 1550nm over thinner-core fiber for much longer distances (10km+). For typical FTTX last-mile deployments, multimode provides better cost-efficiency.

Will this module work in 10G ports set to 1G speed?

Yes, when 10-gigabit ports are configured for backward compatibility to 1G operation, this SFP module functions normally. This capability is useful when migrating FTTX infrastructure incrementally, allowing older gigabit segments to coexist with newer 10G backbone connections.

What happens if fiber distance exceeds the rated 550 meters?

Performance degrades gradually beyond rated distance. While the module may maintain link integrity for some distance beyond specification, bit error rates increase and throughput becomes unreliable. For FTTX deployments requiring longer reaches, consider single-mode transceivers or signal amplification solutions.

Is special configuration needed after installation?

No configuration is required. The module auto-negotiates with connected equipment following standard protocols. Simply insert it into an available SFP port, connect your fiber cable, and the link establishes automatically within seconds. This plug-and-play operation streamlines FTTX network expansions.

How do commercial versus industrial temperature ratings affect deployment?

Commercial-grade modules (0°C to 70°C) suit climate-controlled environments like data centers and indoor telecom rooms. Industrial-grade versions (-40°C to +85°C) handle outdoor FTTX cabinets, street-level distribution boxes, and other environmentally exposed locations where temperature extremes occur seasonally.

 

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