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Everything You Need to Know About SFP28 25G LR Transceivers

Author Moore

Date 03/14/2025

SFP28 25G LR is a high-performance optical module specialized in long-distance data transmission. It supports 25Gbps data rates and uses 1310nm single-mode fiber (SMF) technology for transmission over distances of up to 10km.

Introduction

The demand for high-speed network data transmission is increasing in the digital age, the SFP28 25G LR transceiver has become an important component in data centers, enterprise networks, and telecommunication fields due to its excellent performance and stability. It plays a key role in the development of next-generation communications technologies, as well as improving network efficiency.

 

What is SFP28 25G LR?

SFP28 25G LR is a high-performance optical module specialized in long-distance data transmission. It supports 25Gbps data rates and uses 1310nm single-mode fiber (SMF) technology for transmission over distances of up to 10km. Equipped with a DFB (Distributed Feedback Laser) and a PIN photodetector, the module is widely used in data center interconnections, enterprise networks, and communications infrastructures.

 

SFP28 25G LR 

SFP28 25G LR Specifications

The SFP28 25G LR optical module utilizes an LC duplex connector and achieves 25GBase-LR throughput at 1310nm. It offers fast, low-powered performance with high compatibility, including the following, laying a solid foundation for future network expansion and upgrades.

 

Form Factor SFP28 Data Rate 25 Gbps
Wavelength 1310nm Distance 10km@OS2
Connector LC Duplex Cable Type OS2 SMF
Transmitter Type DFB Receiver Type PIN
TX Power -7~2dBm Receiver Sensitivity <-14dBm
Power Consumption <1W Modulation Format NRZ
DDM Support Bit Error Ratio (BER) 1E-12
Protocols IEEE 802.3ba, SFP28 MSA Warranty 5 Years

 

QSFPTEK QT-SFP28-LR Specification

Benefits of SFP28 25G LR

 

High Bandwidth and Low Latency

The module delivers transmission rates of up to 25Gbps, a 2.5x increase over traditional 10G SFP+ modules. This high-speed transmission ensures data is efficient in real-time sensitive applications such as cloud computing, big data analytics, and financial transactions.

Long Distance Transmission

The SFP28 25G LR achieves transmission distances of up to 10km over single-mode fiber, dramatically reducing reliance on repeaters and thus lowering infrastructure deployment costs, especially for metropolitan area network (MAN) and wide area network (WAN) environments.

Low Power Design

The module's power consumption of less than 1.5W not only reduces operating costs, but also reduces heat generation, which in turn reduces cooling requirements. This is ideal for organizations seeking to go green and save energy.

Cost Effective

The SFP28 25G LR module is compatible with existing single-mode fiber, eliminating the need for costly network upgrades. This combination of high performance and low cost enables organizations to achieve increased network performance while reducing total cost of ownership (TCO).

High Reliability and Compatibility

The module utilizes advanced laser technology to ensure signal transmission stability for business-critical scenarios such as financial transactions and medical systems. It is also compatible with a wide range of network devices and standards, making it easy to upgrade your network.

 

Extra Advantages of QSFPTEK 25GBASE-LR

Based on the inherent advantages mentioned above, QSFPTEK's QT-SFP28-LR product expands on these advantages through proven real-world testing and excellent compatibility.

 

High Compatibility

Compatible with mainstream devices: QSFPTEK QT-SFP28-LR modules are fully compatible with a wide range of mainstream devices and support IEEE-compliant 25G interfaces for seamless connectivity.

 

QSFPTEK Box Real-Time Configuration: Used with the QSFPTEK Box, real-time configuration compatibility and testing ensures stable operation, reduces setup time, and improves deployment efficiency.

 

Superior Performance Verification

Real Device Testing: After more than 200 real device tests to ensure compatibility and reliability on various network devices, eliminating concerns and ensuring high efficiency in actual use.

Performance Assurance: Tested on target brand switches, the modules deliver outstanding performance in complex network environments, ensuring high stability and low latency.

 

Compliance with regulations and standards

International Certification: Complies with global standards such as IEEE 802.3by, SFP28 MSA, RoHS 6, FDA, etc. to ensure regulatory compliance.

Multiple Safety Assurance: Compliance with UL, TUV, CE, REACH and other certifications to ensure product quality and user safety in line with industry standards and tests.

In summary, the QSFPTEK QT-SFP28-LR 25G Optical Modules overview the stability and efficiency of the modules under various complex network environments are based on comprehensive real-world device testing and network environment testing.

 

QT-SFP28-LR 

Application Scenarios of SFP28 25G LR

 

Data Center Interconnect

SFP28 25G LR modules are ideal for high-speed interconnections between data centers, and are also suitable for data transmission within metro networks to meet the needs of large-scale data exchange.

 

Long-haul Communication

In telecom backbone networks and enterprise campus networks, the module supports data transmission up to 10 kilometers, ensuring reliable connectivity in wide-area coverage.

 

High-Reliability Requirements

For business-critical applications requiring high signal stability and interference immunity, such as financial transactions and healthcare systems, SFP28 25G LR modules provide stable and secure data transmission.

 

Conclusion

SFP28 25G LR optical modules have become a core component of modern network infrastructures due to their high bandwidth, long-distance transmission, low power consumption, and high reliability. Whether in data centers, cloud computing, big data analytics, or telecommunications and scientific research, it meets the need for high-speed and efficient data transmission. This 25GBASE-LR module will play an important role in driving next-generation communications technology as network demand grows.

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