What is 100GBASE-LR4?
The 100GBASE-LR4 optical module is an essential component of high-speed networking, specifically designed for 100 Gigabit Ethernet (100GbE) connections. It is tailored for long-range transmission, supporting distances up to 10 kilometers (km) using single-mode fiber. The module operates at a wavelength of 1310 nm, which is ideal for long-distance applications where minimal signal degradation over extended ranges is critical.
Key Features and Specifications
Data Rate: 100 Gbps
Transmission Range: Up to 10 kilometers (km) with single-mode fiber
Wavelength: 1310 nm
Connector Type: LC duplex connectors
Transmission Medium: Single-mode fiber
Interface: MSA-compliant, ensuring broad compatibility with network hardware
The 100GBASE-LR4 module uses four optical lanes, each operating at 25 Gbps, enabling high throughput and reliable performance even over considerable distances. This makes it an ideal solution for data center interconnects, telecommunications networks, and wide-area networks (WANs).
Applications and Use Cases
Due to its impressive distance capabilities, the 100GBASE-LR4 module is widely used in the following environments:
Data Centers: Connecting servers, switches, and storage across large facilities or between geographically separated data centers.
Telecommunications: Supporting long-range links in backbone networks, facilitating communication between cities or even countries.
Enterprise Networks: Providing reliable and high-speed connections for large corporate networks that span significant distances.
How 100GBASE-LR4 Enhances Network Performance
The 100GBASE-LR4’s use of single-mode fiber ensures low signal attenuation and minimal loss over long distances, which is essential for maintaining high throughput over multiple kilometers. By supporting a data rate of 100 Gbps, it enables high-speed transmission without compromising on reliability. This makes it a preferred choice for industries where data speed, volume, and reliability are non-negotiable.
Benefits of 100GBASE-LR4
Long-distance Transmission: Its ability to cover up to 10 km means fewer repeaters and amplifiers are needed, reducing the overall cost of infrastructure.
High Bandwidth: With a data rate of 100 Gbps, this module is ideal for bandwidth-hungry applications, allowing for fast data transfer across large networks.
Compatibility: The LC duplex connector and 1310 nm wavelength ensure compatibility with a wide range of network equipment and systems.
Scalability: As network demands grow, upgrading to 100GBASE-LR4 ensures that organizations can scale their infrastructure without a complete overhaul.
Challenges and Considerations
While the 100GBASE-LR4 optical module offers high-performance and long-range capabilities, there are some considerations to be aware of:
Single-Mode Fiber Requirement: This module requires single-mode fiber, which can be more expensive and difficult to install compared to multimode fiber.
Cost: The initial setup cost can be higher due to the need for specific equipment and fiber types.
Complex Installation: Long-distance optical connections may require precise installation and calibration to avoid signal degradation.
Conclusion
The 100GBASE-LR4 optical module provides a robust, high-performance solution for long-distance, high-bandwidth applications. Its ability to support 100 Gbps speeds over up to 10 kilometers of single-mode fiber makes it ideal for use in data centers, telecommunications networks, and large-scale enterprise environments. However, careful consideration of fiber type and installation practices is crucial for maximizing its effectiveness.
