FTLF8519P3BNL Finisar 2 Gigabit Transceiver 1000BASE-SX SFP Optical

The Finisar FTLF8519P3BNL Transceiver is a cutting-edge networking solution designed to deliver exceptional performance and reliable connectivity. One of its standout features is the impressive data rate of 2 Gigabit, making it an ideal choice for high-speed data transmission.

General Information

• Manufacturer: Finisar
• Part Number: FTLF8519P3BNL
• Product Type: Optical Transceiver Module

Technical Highlights

• SFP (Small Form-factor Pluggable / mini-GBIC)
• 1 x LC Duplex port supporting 1000Base-SX Ethernet
• 62.5/125 µm multimode fiber
• 50/125 µm multimode fiber
• Multi-mode fiber operation
• Gigabit Ethernet
• 1000Base-SX protocol

Form Factor

• Hot-swappable compact design

Applications

• Data networking environments
• Optical network infrastructures

Performance Features

• Bi-directional data transfer up to 2.125 Gb/s
• Hot-pluggable SFP footprint for flexible deployment
• Integrated digital diagnostic monitoring functions

Optical Specifications

• 850nm oxide VCSEL laser transmitter
• Duplex LC connector interface

Compliance & Efficiency

• RoHS compliant and lead-free construction
• Metal housing for reduced EMI interference
• Single 3.3 V power supply
• Low power consumption under 500 mW

Distance & Reliability

• Up to 500m reach on 50/125 µm multimode fiber
• Up to 300m reach on 62.5/125 µm multimode fiber
• Extended operating temperature range: -20°C to 85°C

Finisar FTLF8519P3BNL SFP Transceiver Module

The Finisar FTLF8519P3BNL is a high-performance Small Form-Factor Pluggable (SFP) optical transceiver engineered to support Gigabit Ethernet networking applications over multimode fiber infrastructure. Designed for reliable and efficient optical communication, this transceiver operates at a wavelength of 850nm and delivers data transmission rates compliant with 1000Base-SX standards. The module provides network administrators and enterprise organizations with a dependable solution for extending Gigabit Ethernet connectivity while maintaining signal integrity and network performance.

As a hot-pluggable optical interface, the FTLF8519P3BNL enables easy deployment and replacement without interrupting network operations. Its compact SFP form factor allows network equipment manufacturers to maximize port density while minimizing space requirements within switches, routers, servers, and storage networking devices. The module's duplex LC optical interface ensures secure and efficient fiber connectivity for bidirectional communication across multimode fiber cabling systems.

Designed for Gigabit Ethernet Infrastructure

The Finisar FTLF8519P3BNL has been developed specifically for Gigabit Ethernet deployments requiring dependable optical transmission over multimode fiber. Organizations implementing high-speed LAN environments benefit from the module's ability to deliver stable and consistent network performance while supporting industry-standard networking protocols.

Its compliance with 1000Base-SX specifications ensures interoperability with a broad range of networking equipment and infrastructure components. This compatibility makes the transceiver suitable for enterprise networks, educational institutions, healthcare facilities, financial organizations, government agencies, and data center environments where Gigabit Ethernet remains an essential networking technology.

Optimized 850nm VCSEL Technology

The module utilizes advanced Vertical Cavity Surface Emitting Laser (VCSEL) technology operating at 850nm. VCSEL technology provides numerous advantages, including lower power consumption, improved manufacturing consistency, enhanced reliability, and cost-effective optical transmission. These characteristics contribute to the overall efficiency and long-term operational stability of the transceiver.

The 850nm optical wavelength is optimized for multimode fiber applications, providing efficient signal propagation and dependable communication across supported distances. This wavelength remains a widely adopted standard within enterprise networking environments due to its excellent balance of performance and deployment flexibility.

Optical Performance Characteristics

High-Speed Data Transmission

The Finisar FTLF8519P3BNL supports Gigabit Ethernet communication at 1.25Gbps signaling rates. This performance level allows organizations to transport large volumes of network traffic efficiently while maintaining low latency and high reliability. The transceiver's architecture is engineered to support demanding workloads, including file transfers, virtualization traffic, enterprise applications, and storage communications.

Through precise optical signal generation and reception, the module minimizes transmission errors and maintains stable communication links. The result is improved network efficiency and enhanced user experience across connected systems.

Signal Integrity Enhancement

Signal integrity plays a critical role in optical networking environments. The FTLF8519P3BNL incorporates sophisticated optical and electronic components designed to maintain signal quality throughout transmission. These design features help reduce jitter, noise, and optical distortion, ensuring accurate data delivery between network endpoints.

Maintaining signal integrity becomes especially important in environments with continuous data exchange, where network reliability directly impacts operational productivity and application performance.

Reliable Receiver Sensitivity

The receiver section of the transceiver is optimized to detect incoming optical signals with high accuracy. Enhanced receiver sensitivity contributes to dependable communication even when optical power levels vary within acceptable operating ranges. This capability supports stable connectivity across multimode fiber installations and helps maintain network uptime.

500-Meter Reach Capability

One of the primary advantages of the Finisar FTLF8519P3BNL is its ability to support transmission distances of up to 500 meters over multimode fiber. This reach capability enables organizations to interconnect network devices located across multiple floors, buildings, wiring closets, and infrastructure zones while maintaining Gigabit Ethernet performance.

The 500-meter operational distance provides network designers with flexibility when planning campus networks, enterprise facilities, and large-scale commercial environments. It allows optical connectivity to extend beyond the limitations of traditional copper-based networking solutions.

Multi-Mode Fiber Compatibility

Support for Standard Multimode Fiber Infrastructure

The FTLF8519P3BNL is designed to operate efficiently across multimode fiber cabling systems commonly deployed in enterprise and commercial networking environments. Multimode fiber remains a popular choice for short-to-medium distance applications due to its cost-effectiveness and ease of deployment.

The transceiver supports integration with existing multimode fiber infrastructure, helping organizations maximize the value of their cabling investments while upgrading network equipment and expanding bandwidth capabilities.

OM2 Fiber Support

When deployed over OM2 multimode fiber cabling, the module provides reliable Gigabit Ethernet communication while maintaining compliance with applicable optical transmission requirements. OM2 fiber remains widely installed in many enterprise facilities and continues to support a broad range of networking applications.

OM3 and Enhanced Fiber Compatibility

The transceiver can also operate effectively across OM3 and higher-grade multimode fiber systems. Enhanced fiber characteristics provide improved bandwidth capabilities and support superior optical performance. Organizations utilizing modern cabling infrastructures can leverage these benefits to optimize network efficiency and future scalability.

Duplex LC Connector Architecture

Industry-Standard LC Interface

The Finisar FTLF8519P3BNL features a duplex LC optical connector interface that has become a standard within enterprise networking environments. The compact LC design allows high-density port configurations while maintaining secure and reliable fiber connections.

Network engineers benefit from simplified cable management and improved equipment organization due to the small footprint of LC connectors. This design is particularly valuable within data centers and telecommunications facilities where maximizing rack space efficiency is essential.

Bidirectional Optical Communication

The duplex LC configuration supports separate transmit and receive optical paths. This arrangement enables simultaneous bidirectional communication, ensuring continuous data exchange between connected network devices. Dedicated transmit and receive channels contribute to improved network stability and predictable performance characteristics.

Secure Fiber Connectivity

The LC connector mechanism is engineered to maintain stable physical connections while reducing the risk of accidental disconnections. Reliable fiber attachment contributes to overall network availability and helps prevent disruptions caused by loose or improperly seated optical connections.

SFP Form Factor Advantages

Compact Module Design

The Small Form-Factor Pluggable architecture enables the Finisar FTLF8519P3BNL to occupy minimal space within networking equipment. Compact dimensions allow manufacturers and network operators to deploy higher port densities without increasing equipment size.

This space-efficient design is particularly beneficial in environments where maximizing connectivity within limited rack space is a critical operational requirement.

Hot-Pluggable Functionality

The hot-pluggable nature of the transceiver allows installation and replacement while network equipment remains powered on. This capability minimizes maintenance downtime and supports continuous business operations. 

Reduced Operational Disruption

Organizations benefit from minimized service interruptions during routine maintenance activities. This advantage is especially important in mission-critical environments where network availability directly impacts business productivity and customer service delivery.

Enterprise Networking Applications

Switch-to-Switch Connectivity

The Finisar FTLF8519P3BNL serves as an effective solution for interconnecting Gigabit Ethernet switches across enterprise infrastructures. Reliable optical communication enables efficient traffic distribution and supports scalable network architectures capable of accommodating growing organizational requirements.

Server Network Connections

Servers equipped with compatible SFP interfaces can utilize the transceiver to establish high-speed optical network links. This connectivity supports data-intensive applications, virtualization environments, cloud infrastructure components, and enterprise computing workloads.

Storage Networking Integration

The module can also be deployed within storage networking environments where dependable data transmission is essential. High-performance optical connectivity supports storage traffic, backup operations, disaster recovery processes, and centralized data management initiatives.