ONS-QSFP28-LR4 Cisco 100GBPS Transceiver Module

Overview of Cisco ONS-QSFP28-LR4 Transceiver Module

The Cisco ONS-QSFP28-LR4 is a high-performance 100 Gigabit Ethernet optical transceiver designed for long-distance data communication in enterprise networks, service provider infrastructures, and advanced data center environments. Built with QSFP28 technology, this module delivers reliable high-speed connectivity over single-mode fiber while supporting transmission distances of up to 10 kilometers.

General Information

• Manufacturer: Cisco
• Part Number: ONS-QSFP28-LR4
• Device Category: Optical Transceiver Module

Technical Specifications

• Maximum Data Rate: 103.1Gbps
• Transmission Distance: Up to 10 km
• Fiber Compatibility: Single-Mode Fiber (SMF)
• Optical Interface: Duplex LC Connector

Product Overview and Key Capabilities

• Designed for high-speed 100 Gigabit Ethernet networking applications.
• Uses a compact QSFP28 form factor for efficient port density.
• Supports data rates up to 103.1Gbps for demanding network workloads.
• Provides long-range optical transmission up to 10 km.
• Compatible with single-mode fiber (SMF) infrastructure.
• Features a duplex LC optical connector interface.
• Complies with industry-standard Multi-Source Agreement (MSA) requirements.

Four-Channel LAN WDM Operation

• Channel 1: 1295.56 nm
• Channel 2: 1300.05 nm
• Channel 3: 1304.58 nm
• Channel 4: 1309.14 nm

Optical Transmission Specifications

• Transmitter Technology: LAN WDM DFB Laser
• Transmit Optical Power: -4.3 dBm to +4.5 dBm
• Receiver Technology: PIN Photodetector
• Receiver Sensitivity: Less than -10.6 dBm

Ethernet Technology

• 100 Gigabit Ethernet (100GbE).
• High-speed optical network deployments.
• Single-mode fiber-based communication systems.
• Long-range data center and enterprise connectivity.

Industry Compliance

• Compliant with Multi-Source Agreement (MSA) specifications.
• Designed for interoperability across compatible networking platforms.
• Suitable for standardized QSFP28-based infrastructure.

Enterprise Network Infrastructure

• Core network upgrades.
• High-capacity backbone connections.
• Campus-wide fiber communication.

Data Center Connectivity

• Data center interconnects.
• High-speed switch-to-switch communication.
• Cloud infrastructure expansion.

Service Provider Networks

• Metro network deployments.
• Long-distance fiber communication.
• Carrier-grade Ethernet applications.

Next-Generation Optical Networks

• High-speed data transmission.
• Reliable long-range connectivity.
• Advanced optical signal performance.
• Efficient QSFP28 network integration.

Details of Cisco ONS-QSFP28-LR4 100GBPS Module

The Cisco ONS-QSFP28-LR4 100GBPS Transceiver Module category represents a high-performance class of optical networking components designed to support modern data center, enterprise, service provider, and telecommunications infrastructures requiring reliable 100 Gigabit Ethernet connectivity. These advanced optical transceiver solutions are engineered to provide high-bandwidth communication over fiber optic networks while maintaining efficient power consumption, compact hardware integration, and dependable long-distance transmission capabilities.

As organizations continue adopting cloud computing, virtualization, artificial intelligence, high-performance computing, digital transformation platforms, and large-scale data processing applications, network traffic requirements continue to increase dramatically. Traditional networking technologies often struggle to handle the volume and speed of information exchanged between servers, switches, storage platforms, and distributed computing environments. The Cisco ONS-QSFP28-LR4 100GBPS Transceiver Module category addresses these challenges by providing a scalable optical connectivity solution designed for demanding network architectures.

Optical transceiver modules within this category combine advanced optical communication technology with the flexibility of QSFP28 form factor design. These modules enable network administrators to expand bandwidth capacity while maintaining efficient rack utilization and simplified network management. Their compact design allows high-density deployment in modern switches, routers, and networking platforms where space efficiency and performance are equally important.

Cisco ONS-QSFP28-LR4 100GBPS Transceiver Module Category

The Cisco ONS-QSFP28-LR4 100GBPS Transceiver Module category belongs to the family of 100 Gigabit optical networking solutions designed for high-speed Ethernet applications. The QSFP28 form factor has become widely adopted because it provides significant bandwidth capability within a small physical footprint. This enables network equipment manufacturers and infrastructure operators to deploy large numbers of high-speed interfaces without requiring excessive rack space.

LR4 optical technology is specifically designed for longer-distance single-mode fiber communication. The term LR generally refers to long-range optical transmission capabilities, while the four optical lanes represented by LR4 technology allow efficient transmission of 100 Gigabit Ethernet signals using multiple wavelengths. This architecture provides reliable connectivity across extended fiber links commonly used in enterprise backbones, metropolitan networks, and data center interconnections.

Evolution of 100 Gigabit Optical Networking

The growth of digital services has accelerated the transition from traditional Ethernet speeds toward higher-performance networking standards. Organizations that previously relied on 10 Gigabit and 40 Gigabit Ethernet solutions are increasingly adopting 100 Gigabit Ethernet to support expanding workloads.

Modern applications such as cloud platforms, online services, video processing, scientific research, financial analytics, and artificial intelligence require rapid movement of enormous datasets. The Cisco ONS-QSFP28-LR4 100GBPS Transceiver Module category provides the optical infrastructure required to support these bandwidth-intensive applications.

Importance of QSFP28 Form Factor

The QSFP28 form factor is designed to deliver exceptional performance while maintaining a compact physical size. Compared with larger optical modules, QSFP28 technology allows network equipment manufacturers to increase port density and provide more high-speed connections within a single switching platform.

High-density networking is particularly important in modern data centers where physical space, energy consumption, and cooling requirements directly influence operational efficiency. QSFP28 optical modules support these requirements by combining advanced transmission capability with efficient hardware design.

Single-Mode Fiber Communication

The Cisco ONS-QSFP28-LR4 100GBPS Transceiver Module category is designed around optical communication principles that support transmission across single-mode fiber infrastructure. Single-mode fiber enables signals to travel longer distances with reduced attenuation, making it suitable for backbone connections and inter-building network links.

Fiber optic communication provides advantages over traditional copper networking by offering greater bandwidth capacity, improved resistance to electromagnetic interference, and enhanced transmission reliability.

Four-Wavelength Optical Transmission

LR4 optical technology uses multiple optical wavelengths to achieve high-speed data transmission. By dividing data transmission across several optical channels, the module can achieve 100 Gigabit Ethernet performance while maintaining efficient optical design.

This wavelength-based approach enables reliable communication across fiber networks while supporting the performance requirements of enterprise and service provider environments.

High-Speed Signal Integrity

Maintaining signal quality is essential for high-speed networking. Optical transceiver modules must ensure accurate conversion between electrical signals inside networking equipment and optical signals transmitted through fiber cables.

The Cisco ONS-QSFP28-LR4 category focuses on providing stable signal performance, allowing organizations to maintain reliable communication across critical network connections.

Data Center Interconnects

Modern data centers frequently require high-speed connections between separate facilities, server clusters, storage environments, and networking layers. The Cisco ONS-QSFP28-LR4 100GBPS Transceiver Module category supports these applications by providing efficient optical links capable of handling large volumes of data traffic.

Data center operators use high-speed optical connectivity to improve workload mobility, enhance application performance, and support distributed computing environments.

Enterprise Core Networking

Large enterprises rely on robust network backbones to connect departments, campuses, cloud resources, and critical business applications. 100 Gigabit optical modules provide the bandwidth necessary to support increasing user demand and application complexity.

Enterprise core networks benefit from reliable optical communication because it helps reduce congestion and improves overall network efficiency.

Telecommunications Infrastructure

Telecommunications providers require scalable networking solutions capable of supporting growing customer demand, broadband services, mobile networks, and cloud connectivity. Optical transceiver technologies play an essential role in expanding backbone capacity and improving service reliability.

Cloud Computing Environments

Cloud service platforms depend on powerful networking systems that connect thousands of servers and storage resources. High-speed optical modules enable efficient communication between infrastructure components, supporting virtualization, containerized applications, and distributed cloud services.

High-Performance Computing Systems

Research facilities, engineering organizations, and scientific institutions often operate computing clusters that process extremely large datasets. 100 Gigabit Ethernet connectivity helps accelerate communication between computational nodes, storage systems, and management platforms.

Increased Network Bandwidth

The primary advantage of this category is the ability to provide significantly greater bandwidth compared with previous generations of Ethernet technology. Increased bandwidth allows organizations to transfer more information simultaneously and support increasingly demanding applications.

Reduced Network Bottlenecks

As server processing capabilities improve, network limitations can become a significant performance barrier. High-speed optical modules help eliminate these bottlenecks by providing faster communication pathways between critical infrastructure components.

Improved Application Responsiveness

Applications that depend on rapid data exchange benefit from high-performance networking. Database systems, analytics platforms, cloud applications, and real-time services can operate more efficiently when supported by reliable 100 Gigabit optical connections.

Compatibility with Enterprise Switching Platforms

Optical transceiver modules are commonly deployed in compatible switches, routers, and networking platforms that support QSFP28 interfaces. Proper compatibility ensures reliable operation and allows organizations to maximize the performance of their networking equipment.

Fiber Cabling Infrastructure

The performance of a high-speed optical module depends heavily on the quality and design of the supporting fiber infrastructure. Properly installed single-mode fiber cabling helps maintain signal integrity and ensures reliable long-distance communication.

Hot-Swappable

Many optical transceiver designs support hot-swappable installation, allowing administrators to replace or upgrade modules without shutting down entire networking systems. This capability reduces maintenance interruptions and improves operational flexibility.

Space-Efficient Deployment

The compact QSFP28 design enables high-density networking deployments. Data centers and enterprise facilities can install more high-speed connections within existing equipment layouts.

Long-Term Infrastructure Value

Investing in high-speed optical networking helps organizations create infrastructure capable of supporting future technology growth. As applications continue becoming more data-intensive, 100 Gigabit Ethernet provides a strong foundation for scalable network expansion.

Modern Data-Driven Enterprises

Businesses increasingly rely on data analytics, automation, artificial intelligence, cloud services, and interconnected digital platforms. These technologies require networking infrastructure capable of moving information quickly and efficiently.

The Cisco ONS-QSFP28-LR4 100GBPS Transceiver Module category provides the connectivity foundation necessary for organizations seeking improved performance, scalability, and reliability in their network environments.

Future-Ready Optical Networking Solutions

The continued evolution of enterprise technology requires networking solutions that can adapt to increasing bandwidth requirements. The Cisco ONS-QSFP28-LR4 100GBPS Transceiver Module category represents a high-performance optical networking approach that supports next-generation data centers, enterprise networks, telecommunications systems, and cloud infrastructures through efficient 100 Gigabit Ethernet connectivity, compact QSFP28 architecture, and dependable fiber optic communication.