ONS-QSFP4X10MLR Cisco 40GBPS 40GBase-Lr Multi-Rate QSFP+ Transceiver

Cisco ONS-QSFP4X10MLR 40G Transceiver Module

The Cisco ONS-QSFP4X10MLR is a high-performance QSFP+ optical transceiver designed to deliver reliable 40 Gigabit Ethernet connectivity over single-mode fiber networks. Built for carrier-grade and enterprise networking environments, this plug-in module provides long-distance data transmission up to 10 kilometers while maintaining stable and efficient optical communication.

Featuring 40GBase-LR technology, an MPO single-mode fiber interface, and support for Cisco network platforms, the ONS-QSFP4X10MLR transceiver is an ideal solution for high-bandwidth applications requiring dependable fiber connectivity and extended transmission distances.

General Information

• Brand: Cisco
• Model Number: ONS-QSFP4X10MLR
• Device Type: QSFP+ Transceiver Module

Technical Specifications

• Data Link Protocol: 40 Gigabit Ethernet
• Transmission Speed: 40 Gbps
• Optical Standard: 40GBase-LR
• Fiber Type: Single-Mode Fiber
• Transmission Distance: Up to 10 km (6.2 miles)
• Wavelength Range: 1260 nm to 1355 nm

Key Features of Cisco ONS-QSFP4X10MLR QSFP+ Module

• Original Cisco QSFP+ optical transceiver designed for 40 Gigabit Ethernet networks.
• Supports 40GBase-LR connectivity for high-speed single-mode fiber communication.
• Provides data transmission rates of up to 40Gbps for demanding network applications.
• Offers a maximum optical reach of 10 km (6.2 miles).
• Uses a plug-in QSFP+ form factor for simple installation and replacement.
• Compatible with selected Cisco Network Convergence System platforms.
• Designed for reliable operation in enterprise, service provider, and data center environments.

Connection Interface Specifications

• Port Configuration: 1 x Ethernet 40GBase-LR interface
• Connector Type: MPO Single-Mode Female Connector
• Cabling Support: Single-mode fiber cabling
• Network Medium: Optical fiber

Operating Temperature Range

• Minimum Operating Temperature: 32°F (0°C)
• Maximum Operating Temperature: 158°F (70°C)

Cisco Network Systems

• Cisco Network Convergence System 4009
• Cisco 4009 Agnostic Cross Connect - Single-Chassis
• Cisco 4016 Agnostic Cross Connect - Multi-Chassis Fabric Line Card
• Cisco 4016 Chassis

Common Deployment Environments

• Enterprise backbone networks
• Data center interconnects
• Service provider infrastructure
• High-capacity fiber optic networks
• Large-scale Cisco networking environments
• Long-distance Ethernet communication links

Product Highlights

• 40 Gigabit Ethernet QSFP+ optical transceiver.
• Supports 40GBase-LR single-mode fiber connections.
• Delivers up to 10 km transmission distance.
• Operates across the 1260-1355 nm wavelength spectrum.
• Designed for Cisco NCS and cross-connect networking platforms.
• Provides reliable high-bandwidth optical connectivity for professional networks.

Cisco ONS-QSFP4X10MLR QSFP+ Transceiver Module 

The Cisco ONS-QSFP4X10MLR QSFP+ Transceiver Module is engineered to provide 40 Gigabit per second optical connectivity using single-mode fiber technology. As a multi-rate optical module, it offers flexibility for different networking applications while maintaining compatibility with professional-grade networking environments. The module operates using a wavelength around 1355nm and supports transmission distances of up to 10 kilometers, making it suitable for metropolitan networks, data center interconnections, and enterprise backbone infrastructure.

Optical transceiver modules play a critical role in modern network systems by converting electrical signals from networking equipment into optical signals suitable for fiber transmission. The Cisco ONS-QSFP4X10MLR performs this conversion efficiently, allowing network devices to communicate across longer distances with reduced signal degradation compared with traditional copper-based connections.

40GBase-LR Optical Networking Technology

The 40GBase-LR standard is designed for long-range 40 Gigabit Ethernet communication using single-mode fiber. The Cisco ONS-QSFP4X10MLR utilizes this technology to provide dependable connectivity over distances of up to 10 kilometers. This capability makes it an effective solution for organizations that require high-speed connections between network locations without the limitations associated with shorter-range optical modules.

Single-mode fiber technology enables data signals to travel over extended distances with excellent signal integrity. Because single-mode fiber uses a narrow optical transmission path, it minimizes dispersion and allows networks to maintain performance over greater distances. The Cisco ONS-QSFP4X10MLR leverages these characteristics to support reliable high-bandwidth communication in demanding environments.

Multi-Rate Capability for Flexible Network Deployment

The multi-rate design of the Cisco ONS-QSFP4X10MLR provides additional flexibility for network administrators managing diverse infrastructure requirements. Multi-rate optical modules are valuable because they can support different operational scenarios while reducing the need for multiple specialized transceiver models.

This flexibility allows organizations to simplify inventory management and improve network upgrade strategies. Instead of replacing optical components whenever network requirements evolve, a multi-rate transceiver can provide broader compatibility across different applications and deployment environments.

QSFP+ Form Factor and High-Density Networking

The QSFP+ form factor used by the Cisco ONS-QSFP4X10MLR is designed for high-density networking environments where performance and space efficiency are equally important. QSFP+ modules combine multiple data channels within a compact physical design, allowing network equipment manufacturers to increase port density while maintaining strong connectivity performance.

High-density optical solutions are especially important in modern data centers where rack space is limited and bandwidth requirements continue to increase. The compact QSFP+ design enables network operators to deploy more high-speed connections within existing infrastructure layouts.

40Gbps High-Speed Data Transmission

The 40Gbps transmission capability of this QSFP+ transceiver allows organizations to support demanding networking workloads that require fast and consistent data transfer. High-speed connectivity is essential for applications such as cloud computing, large-scale virtualization, online services, storage networking, and enterprise communication platforms.

By providing increased bandwidth compared with older networking technologies, the Cisco ONS-QSFP4X10MLR helps reduce congestion and improves communication efficiency between network devices. This allows organizations to handle growing volumes of digital traffic while maintaining responsive and reliable network performance.

Data Center Interconnect Solutions

Data centers depend on high-speed optical communication to connect servers, storage systems, switches, and network infrastructure. The Cisco ONS-QSFP4X10MLR provides the bandwidth and distance capability needed for data center interconnect applications where reliable communication between locations is required.

As organizations expand their digital operations, data center traffic continues to grow rapidly. Optical transceiver modules such as the Cisco ONS-QSFP4X10MLR help support this growth by enabling fast and efficient connections between critical network components.

Enterprise Network Backbone Connectivity

Enterprise organizations often require strong backbone networks to connect departments, facilities, and critical systems. The Cisco ONS-QSFP4X10MLR supports these environments by providing a high-performance optical connection suitable for backbone networking applications.

Reliable backbone connectivity ensures that business applications, communication systems, and data services operate effectively. The module helps organizations maintain stable network performance while supporting increasing demands for bandwidth and connectivity.

Telecommunications and Metropolitan Area Networks

Telecommunications providers and metropolitan area networks require optical components capable of supporting long-distance communication. The Cisco ONS-QSFP4X10MLR is designed to support these types of applications by providing extended optical reach and high-speed data transmission.

Its 10-kilometer transmission capability makes it suitable for connecting network locations across metropolitan areas and supporting efficient infrastructure expansion.

Cloud Computing and Virtualized Infrastructure

Cloud platforms and virtualization environments generate significant network traffic because multiple services and applications operate across shared infrastructure. High-speed optical connectivity helps ensure that these environments maintain consistent performance.

The Cisco ONS-QSFP4X10MLR contributes to cloud-ready networking by enabling fast communication between servers, switches, and storage resources. This supports efficient resource utilization and helps organizations build scalable technology platforms.

Enhanced Network Performance

High-speed optical connectivity improves overall network performance by increasing available bandwidth and reducing communication bottlenecks. The Cisco ONS-QSFP4X10MLR enables faster transfer of large amounts of data, helping organizations support modern applications and services.

Improved network performance is particularly valuable for businesses handling large databases, multimedia content, cloud workloads, and real-time communication systems.

Efficient Infrastructure Scaling

As network requirements grow, organizations need solutions that can support expansion without requiring complete infrastructure replacement. The Cisco ONS-QSFP4X10MLR helps enable scalable network growth by providing a high-capacity optical connection that integrates into compatible networking environments.

This allows businesses to gradually expand their network capabilities while maintaining operational efficiency and reliability.

Deployment Considerations for Cisco QSFP+ Optical Transceiver

Successful deployment of the Cisco ONS-QSFP4X10MLR requires consideration of network compatibility, fiber infrastructure, device support, and installation requirements. Administrators should ensure that connected networking equipment supports the QSFP+ interface and required optical specifications.

Compatibility with Enterprise Networking Equipment

The Cisco ONS-QSFP4X10MLR is designed for use with compatible networking systems that support QSFP+ optical modules. Proper compatibility verification helps ensure reliable operation and optimal performance.

Network professionals should evaluate hardware requirements, firmware compatibility, and optical infrastructure before installation. Correct configuration ensures that the module operates effectively within the intended environment.

Optical Network Maintenance and Reliability

Maintaining optical network components is essential for long-term reliability. Proper fiber handling, connector care, and regular infrastructure monitoring help preserve signal quality and reduce potential connectivity issues.

The Cisco ONS-QSFP4X10MLR is built for professional networking applications where dependable performance is required. When properly installed and maintained, it can support stable high-speed communication across enterprise and data center environments.

Advanced 40Gbps Optical Connectivity for Modern Networks

The Cisco ONS-QSFP4X10MLR 40GBPS 40GBase-LR Multi-Rate Single-Mode Fiber 10km 1355nm MPO Connector QSFP+ Transceiver Module provides a powerful networking solution for organizations requiring high-speed, long-distance optical communication. Its combination of 40Gbps performance, single-mode fiber support, QSFP+ architecture, and extended transmission capability makes it an important component for modern enterprise networks.

Designed for demanding applications including data center connectivity, telecommunications infrastructure, cloud environments, and enterprise backbone networks, this optical transceiver module supports the continued evolution of high-performance networking. Its advanced design enables organizations to improve bandwidth availability, enhance network efficiency, and build scalable infrastructure capable of meeting future connectivity requirements.