FTLF8519P3BNL Finisar 2 Gigabit Transceiver 1000BASE-SX SFP Optical

Product Highlights of Finisar FTLF8519P3BNL SFP Transceiver

The Finisar FTLF8519P3BNL represents a cornerstone in high-performance optical networking, engineered specifically for demanding 1000Base-SX Ethernet applications. This Small Form-Factor Pluggable (SFP) transceiver module is meticulously designed to deliver reliable, high-speed data transmission over multi-mode fiber (MMF) at a wavelength of 850nm. With a robust transmission distance of up to 500 meters over OM3 fiber and a duplex LC connector interface, the FTLF8519P3BNL ensures seamless integration into enterprise switches, routers, and network interface cards.

General Information

• Manufacturer: Finisar
• Model Number: FTLF8519P3BNL
• Device Type: Optical Transceiver Module

Technical Highlights

• SFP (Small Form-factor Pluggable) mini-GBIC design
• 1 x LC Duplex port supporting 1000Base-SX Ethernet
• Compatible with 62.5/125 µm and 50/125 µm fiber standards
• Multi-mode fiber support for versatile deployment
• Optimized for Gigabit Ethernet transmission
• Network protocol: 1000Base-SX

Form Factor

• Hot-swappable footprint for easy installation
• Compact metal housing reduces EMI interference
• RoHS compliant and lead-free construction

Application & Usage

• Designed for data networking and optical infrastructures
• Supports bi-directional data rates up to 2.125 Gb/s
• Ideal for enterprise-grade optical networks

Performance Features

Optical Specifications

• 850nm oxide VCSEL laser transmitter
• Duplex LC connector for stable fiber connections
• Transmission distance: up to 500m on 50/125 MMF, 300m on 62.5/125 MMF

Power & Efficiency

• Operates on a single 3.3V power supply
• Low energy consumption under 500mW typical
• Extended operating temperature range: -20°C to +85°C

Additional Advantages

• Built-in digital diagnostic monitoring functions
• Reliable hot-pluggable SFP footprint for flexible upgrades
• Engineered for long-term stability in demanding environments

Finisar FTLF8519P3BNL SFP Transceiver Module

The Finisar FTLF8519P3BNL is a high-performance Small Form-Factor Pluggable (SFP) optical transceiver module engineered for Gigabit Ethernet networking environments requiring dependable short-range optical connectivity. Designed to support 1000Base-SX applications, this transceiver operates at an 850nm wavelength and utilizes multi-mode fiber infrastructure to deliver reliable data transmission across distances of up to 500 meters, depending on fiber type and network design. The compact SFP form factor enables seamless integration into switches, routers, network interface cards, media converters, storage systems, and enterprise networking equipment that support standard MSA-compliant SFP modules.

Built with advanced optical and electronic components, the Finisar FTLF8519P3BNL combines stable signal transmission, low power consumption, and industry-standard interoperability. The module supports duplex optical communication through dual fiber strands connected via a duplex LC optical interface, allowing simultaneous transmission and reception of Gigabit Ethernet traffic.

Compact SFP Form Factor Design

The SFP form factor has become a standard across enterprise and data center networking because of its modularity and scalability. The Finisar FTLF8519P3BNL follows the Multi-Source Agreement specifications, ensuring compatibility with a broad range of networking platforms. The compact footprint allows network administrators to maximize switch port density while maintaining flexible optical connectivity options.

Gigabit Ethernet Optimization

The module is specifically optimized for Gigabit Ethernet applications, delivering consistent throughput at 1.25Gbps signaling rates. This makes it suitable for access layer switching, aggregation networks, enterprise backbone connections, server connectivity, and storage networking deployments where dependable Gigabit performance remains essential.

850nm VCSEL Technology

Vertical Cavity Surface Emitting Laser Integration

The Finisar FTLF8519P3BNL utilizes a highly efficient Vertical Cavity Surface Emitting Laser (VCSEL) operating at 850nm. VCSEL technology is widely adopted in short-reach optical communication due to its reliability, cost-effectiveness, and energy-efficient operation.

VCSEL transmitters provide precise optical output while maintaining excellent beam quality. Their manufacturing consistency contributes to improved module reliability and predictable optical performance throughout the transceiver's operational lifespan.

Benefits of 850nm Optical Transmission

The 850nm wavelength is particularly suited for multi-mode fiber environments. It supports high-speed communication over moderate distances while maintaining economical deployment costs. This wavelength operates efficiently with commonly installed OM2, OM3, and OM4 fiber cabling systems found throughout enterprise campuses, commercial facilities, and data centers.

Optimized optical power levels help maintain signal integrity while reducing unnecessary energy consumption. The resulting balance between performance and efficiency contributes to stable network operation across a wide range of deployment scenarios.

Receiver Technology and Signal Detection

The receiving side of the transceiver incorporates advanced photodetector technology designed to accurately convert incoming optical signals into electrical data streams. Sensitive receiver architecture helps maintain communication integrity even under varying optical conditions, ensuring dependable packet delivery and network stability.

Multi-Mode Fiber Support and Distance Capabilities

Support for Multiple Fiber Grades

The Finisar FTLF8519P3BNL supports deployment across a variety of multi-mode fiber infrastructures. This flexibility allows organizations to leverage existing cabling investments while upgrading networking equipment to modern optical connectivity standards.

The module is commonly deployed with 50/125µm and 62.5/125µm multi-mode fiber types. Support for multiple cable specifications increases installation flexibility and facilitates integration into both legacy and newly constructed network environments.

500 Meter Transmission Reach

One of the defining characteristics of the Finisar FTLF8519P3BNL is its ability to support transmission distances of up to 500 meters. This capability makes it suitable for inter-building connectivity, enterprise campus networks, departmental uplinks, distribution layer infrastructure, and data center communication pathways.

The combination of Gigabit Ethernet performance and extended multi-mode reach enables network designers to deploy high-speed optical links without requiring single-mode fiber installations in many short-to-medium distance scenarios.

Signal Integrity Across Extended Links

Maintaining signal quality over hundreds of meters requires precise optical engineering. The module's transmitter and receiver components are calibrated to support stable communication while minimizing bit error rates and preserving packet accuracy. These characteristics contribute to dependable network performance even in environments with demanding traffic requirements.

Duplex LC Optical Interface

Industry-Standard Connectivity

The duplex LC connector configuration provides a compact and highly reliable optical interface for Gigabit Ethernet networking applications. LC connectors have become the preferred choice in modern optical environments due to their small size, secure retention mechanism, and high-density deployment capabilities.

The Finisar FTLF8519P3BNL utilizes one fiber strand for transmission and a second strand for reception. This duplex architecture supports full-duplex communication, allowing simultaneous bidirectional data transfer and maximizing network efficiency.

Advantages of LC Connector Deployment

LC connectors support high-density patch panel configurations, enabling organizations to maximize rack utilization within telecommunications rooms and data center environments. Their compact footprint facilitates organized cable management while reducing congestion around network equipment.

The precision alignment characteristics of LC interfaces contribute to consistent optical performance and reduced insertion loss, helping preserve signal quality throughout the optical channel.

Compatibility with Existing Infrastructure

The widespread adoption of LC connectivity across enterprise networking equipment simplifies deployment and maintenance. Existing patch panels, structured cabling systems, optical distribution frames, and fiber jumpers can typically be utilized without requiring specialized adapters or custom interfaces.

Hot-Pluggable Functionality

Operational Flexibility

Hot-swappable functionality allows the Finisar FTLF8519P3BNL to be installed or removed while networking equipment remains powered on. This feature significantly improves operational efficiency by reducing service interruptions and simplifying maintenance procedures.

Network administrators can perform upgrades, replace faulty modules, or provision additional optical links without disrupting adjacent network services.

Reduced Downtime

Modern enterprise environments require continuous availability. The hot-pluggable architecture supports maintenance workflows that minimize downtime and maintain business continuity. This capability is particularly valuable in mission-critical environments where network interruptions can impact productivity and service delivery.

Enterprise Networking Applications

Access Layer Connectivity

The Finisar FTLF8519P3BNL serves as an effective solution for access layer networking deployments where Gigabit Ethernet connectivity is required between switches, distribution equipment, and aggregation platforms. The module's balance of performance, reliability, and compatibility makes it suitable for enterprise-scale implementations.

Distribution Layer Infrastructure

Distribution networks often require dependable optical uplinks capable of handling aggregated traffic from multiple access switches. The transceiver's Gigabit Ethernet support and extended reach capabilities allow it to function effectively within hierarchical network architectures.

Campus Network Deployments

Educational institutions, healthcare facilities, government campuses, and corporate environments frequently utilize optical connectivity between buildings and communications rooms. The module's 500-meter transmission capability enables reliable interconnection of distributed network resources across campus environments.

Server and Storage Connectivity

Servers and storage systems frequently require optical connections to support bandwidth-intensive applications and centralized data access. The Finisar FTLF8519P3BNL provides dependable Gigabit Ethernet communication for server farms, storage area networks, backup infrastructures, and virtualization environments.

Data Center Integration

High-Density Deployment Environments

Modern data centers prioritize space efficiency and scalability. The compact SFP design allows networking equipment manufacturers to support high port densities while maintaining flexibility for optical media selection. The Finisar FTLF8519P3BNL contributes to efficient rack utilization and organized network architecture.

Structured Cabling Compatibility

The module integrates seamlessly with structured cabling infrastructures that utilize multi-mode fiber backbones and LC termination systems. Compatibility with established cabling standards simplifies deployment planning and supports long-term infrastructure management objectives.

Reliable East-West Traffic Connectivity

Data center environments generate substantial east-west traffic between servers, storage arrays, and virtualization platforms. Stable optical communication provided by the transceiver supports efficient data movement and helps maintain application responsiveness across interconnected systems.

Interoperability and Standards Compliance

MSA Compliance

Compliance with industry-standard Multi-Source Agreement specifications ensures interoperability across a broad ecosystem of networking equipment. This compatibility simplifies procurement decisions and enables flexible network design strategies.

IEEE 802.3 Gigabit Ethernet Alignment

The module is designed to support relevant Gigabit Ethernet standards associated with 1000Base-SX optical communication. Standards-based operation helps ensure consistent functionality across compatible platforms and networking environments.

Vendor Integration Flexibility

The standardized design approach facilitates deployment within diverse networking infrastructures. Organizations can leverage the module across compatible switches, routers, network appliances, and communications platforms while maintaining consistent optical performance characteristics.

Optical Performance Characteristics

Stable Data Transmission

Optical communication quality depends on maintaining accurate signal generation, transmission, and reception. The Finisar FTLF8519P3BNL incorporates precision optical components that support low error rates and dependable packet delivery across supported transmission distances.

Low Power Consumption Profile

Energy efficiency remains an important consideration within modern networking environments. The module's optimized design helps reduce power consumption while maintaining Gigabit Ethernet throughput, contributing to overall infrastructure efficiency and reduced operational costs.

Balanced Performance and Efficiency

The integration of advanced VCSEL technology, efficient receiver architecture, standards-compliant design, and multi-mode fiber optimization creates a transceiver solution capable of delivering reliable Gigabit Ethernet connectivity across enterprise networks, campus infrastructures, storage environments, and data center applications. The Finisar FTLF8519P3BNL remains a dependable choice for organizations seeking robust 1000Base-SX optical communication through an industry-standard duplex LC SFP transceiver platform.