SFP-25GMLR-31-I is an industrial-grade, dual-rate 10G/25G SFP28 optical transceiver module that delivers reliable 10km transmissions over single-mode fiber (SMF) via a 1310nm DFB laser and a duplex LC/UPC connector, all while maintaining an energy-efficient maximum power consumption of just 1.2W and supporting real-time DOM diagnostics.
Key Features of FS SFP-25GMLR-31-I Compatible LINK-PP 10/25G SFP28
FS SFP-25GMLR-31-I Compatible LINK-PP serves as an industrial-grade, dual-rate optical transceiver tailored for flexible 10G/25GBASE-LR fiber systems. Built with a 1310nm DFB laser, a duplex LC/UPC interface, and built-in digital diagnostics, this durable unit ensures stable data transmissions over 10km spans.
This module fully supports both optical and electrical loopback functions to make network testing much easier. These integrated loopback modes allow engineers to quickly isolate faults and verify signal integrity during deployment. Additionally, it maintains a highly efficient design with a maximum power consumption of just 1.2W.
SFP-25GMLR-31-I: 10/25 Gbps Connectivity for Industrial IoT Frameworks
This module features a flexible dual-rate architecture that supports both 10Gbps and 25Gbps data speeds to match changing industrial demands. It allows industrial networks to run efficiently at 10G today while offering a smooth, seamless upgrade path to 25G bandwidth tomorrow.
SFP-25GMLR-31-I Module with 1310nm Wavelength
The transceiver utilizes a specialized 1310nm DFB laser source to ensure stable and precise optical signal generation. This wavelength offers an excellent balance of low attenuation and minimal dispersion over single-mode fiber. It provides clean, error-free communication channels even in complex data transmission environments.
Designed for long-reach connectivity, this transceiver safely transmits data up to a maximum distance of 10km. It is perfectly optimized for single-mode fiber (SMF) cabling plants to bridge distant network nodes. This makes it highly effective for connecting different buildings or dispersed industrial campus facilities.
SFP-25GMLR-31-I Module with Duplex LC/UPC Interface
The module is equipped with a standard duplex LC/UPC connector interface for quick and secure fiber plugging. Its Ultra Physical Contact (UPC) polish minimizes signal return loss to preserve maximum light integrity. The compact LC design allows for high port density on switches and patch panels.
SFP-25GMLR-31-I Module with DOM for Real-Time Monitoring
Featuring integrated Digital Optical Monitoring (DOM), this module tracks critical operational metrics in real time. Network administrators can easily monitor live statistics such as transceiver temperature, laser power, and supply voltage. This proactive monitoring helps identify potential faults before they cause unexpected network downtime.
FS SFP-25GMLR-31-I Compatible LINK-PP meets strict global compliance and safety requirements, fully adhering to recognized international standards including ISO 9001, CE, RoHS, and FCC.
Every module undergoes rigorous hardware inspections and environmental stress testing to guarantee flawless operation under harsh conditions.
SFP-25GMLR-31-I Quality Certifications
These authoritative industry credentials validate the module's eco-friendly design, safe electrical engineering, and premium manufacturing standards.
This product is in conformity with ISO9001. This system is valid to a company engaging in development, production and supply service of fiber optical products. Please contact us to learn more.
ISO/IEC 27001 is an international standard for managing and processing information security. This standard is jointly developed by the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC). It sets out requirements for establishing, implementing, maintaining, and continually improving an information security management system (ISMS). Ensuring the confidentiality, integrity, and availability of organizational information assets, obtaining an ISO 27001 certificate means that the enterprise has passed the audit conducted by a certification body, proving that its information security management system has met the requirements of the international standard. Please contact us to learn more.
This product is in conformity with ISO14001.It is intended for use by an organization seeking to manage its environmental responsibilities in a systematic manner that contributes to the environmental pillar of sustainability. Please contact us to learn more.
ISO 45001 is a global standard that sets out the requirements for an occupational health and safety management system (OH&SMS).
REACH is a European Union regulation concerning the Registration, Evaluation, Authorization and Restriction of Chemicals. It came into force on 1st June 2007 and replaced a number of European Directives and Regulations with a single system. The regulation aims to protect human health and environmental safety, maintain and improve the competitiveness of the EU chemical industry, and develop innovative capabilities for non-toxic and harmless compounds to prevent market fragmentation, increase the transparency of the use of chemicals, promote non-animal experiments, and pursue sustainable social development.Please contact us to learn more.
This product meets the applicable requirements of Directive (EU) 2015/863 of RoHS. It restricts the use of 10 hazardous materials in the manufacture of various types of electronic and electrical equipment: lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls, polybrominated diphenyl ethers, and four different phthalates. Please contact us to learn more.
This product fully accords with the FCC, which aims to manage the radio wave and magnetic fields more reasonably. Please contact us to learn more.
CB is an international system operated by IECEE. This product is based on IEC standards for testing the safety performance of electrical products. Please contact us to learn more.
This product fully accords with UKCA (UK Conformity Assessed) certificate, which signifies that it meets all relevant quality standards as well as health and safety requirements. Please contact us to learn more.
UL certification is a non-mandatory certification in the United States,mainly testing and certification of product safety performance.Its ultimate purpose is to obtain products with a fairly safe level for the market,and to contribute to ensuring human health and property safety.Please contact us to learn more.
SFP-25GMLR-31-I Certified for Reliable Host-Device Compatibility
Extensive interoperability testing ensures this transceiver integrates seamlessly and functions reliably across a wide range of major networking switches and routers.
Every LINK-PP SFP28 transceiver module undergoes strict performance evaluations to guarantee flawless network stability. Discover our complete quality assurance processes through the LINK-PP Test Support Center.
Optical Spectrum Test
Measure central wavelength and spectral width for precise laser output.
Eye Pattern Test
Analyze signal quality and timing jitter to prevent data distortion.
Bit Error Rate Test
Verify data transmission accuracy to guarantee zero-packet-loss network links.
Temperature Test
Validate stable module operations under extreme industrial thermal conditions.
Product Shipping for FS SFP-25GMLR-31-I Compatible LINK-PP 10/25G SFP28
We ensure secure transit for your SFP28 optical modules. Your orders ship quickly via trusted international networks.
Anti-Static Protective Packaging
Shield fragile electrical components from static damage during transit.
Shock-Resistant Transport Protection
Secure modules safely inside durable containers to prevent physical damage.
Fast Order Processing and Dispatch
Accelerate order handling to ensure rapid product shipment tracking.
Global Logistics and International Delivery
Ship products reliably to customers worldwide using top logistics partners.
Featuring intuitive latching mechanisms, the SFP-25GMLR-31-I SFP28 optical module inserts smoothly into routers for rapid field setup. It is specifically targeted at demanding application fields, maintaining continuous link integrity for distributed edge computing terminals, industrial automation setups, and interconnected campus storage networks over 10km spans.
SFP-25GMLR-31-I Technical Support
LINK-PP offers end-to-end technical support, from pre-sales consultation to post-deployment assistance, ensuring smooth integration and reliable network performance.
Pre-Sales Technical Consultation
Professional guidance to help you select the optimal SFP-25GMLR-31-I module for your network design and application needs.
Compatibility Verification Support
Validated compatibility with LINK-PP switches and other mainstream networking platforms for seamless deployment.
Deployment & Installation Assistance
Comprehensive step-by-step guidance for installation, configuration, and initial setup, ensuring accurate deployment and reliable, stable operation from the start.
Long-Term Technical Assurance
Ongoing technical support throughout the product lifecycle, delivering long-term stability for enterprise and carrier-grade networks.
A:
Yes, it is fully optimized for 25G eCPRI protocol options, delivering the ultra-low latency and low jitter that cell site backhauls require. By
admin
A:
This is a dual-rate transceiver that supports both 10Gbps (10GBASE-LR) and 25Gbps (25GBASE-LR) speeds, allowing for easy network migration. By
admin
Our network architecture relies heavily on 25G interfaces for multi-tenant cloud hosting. These modules provide the exact same distance and reliability as major brands at a fraction of the Capex.
Please write comments with more than three
character.
495682
554266
I***h
Iran, Islamic Republic of
Verified
Purchase
5 .0
2026-02-18
Highly recommend these for any enterprise network migration. We are running them at 10G right now on older switches and plan to toggle to 25G next year when we upgrade the core routers. Backward compatibility is great.
Please write comments with more than three
character.
495682
554256
N***d
Spain
Verified
Purchase
5 .0
2025-11-08
We operate a heavy industrial manufacturing facility with extreme electromagnetic interference and variable ambient conditions. We used these industrial-grade SFP28 transceivers to link our main server room with remote CNC fabrication blocks over 7km of single-mode fiber. The modules have provided rock-solid noise immunity and completely eliminated the ground-loop risks we faced with copper. Real-time DDM metrics show consistent laser bias, indicating long-term laser diode health despite the challenging environment. Superb reliability.
Please write comments with more than three
character.
495682
554267
K***n
Singapore
Verified
Purchase
5 .0
2025-10-31
Good build quality and clean optical interfaces. Make sure to clean your fiber patches before plugging in, but once connected, the DOM readings are exceptionally stable. Will order another 100 units soon.
Please write comments with more than three
character.
495682
554259
J***e
Canada
Verified
Purchase
5 .0
2025-09-14
Our data center batch deployment went smoothly. Out of 120 pieces, not a single DOA. That’s an impressive quality control track record for third-party optical transceivers. We will be shifting more orders here.
Please write comments with more than three
character.
495682
554264
R***y
Morocco
Verified
Purchase
4 .0
2025-08-14
Excellent 1310nm 10km optical performance, but the standard delivery took 2 days longer than expected due to a local courier delay. The product itself is 5 stars — recognized immediately by my aggregation switch and running cool. Just budget a few extra days for shipping if you are on a tight deadline.
Please write comments with more than three
character.
495682
554257
C***m
Bulgaria
Verified
Purchase
5 .0
2025-07-02
Needed industrial-grade dual-rate 25G SFP28 transceivers for our outdoor 5G cell tower backhaul cabinets. These handle the harsh summer heat without any throttling or signal degradation. Extremely satisfied with the build.
Please write comments with more than three
character.
495682
554258
S***m
Libyan Arab Jamahiriya
Verified
Purchase
4 .0
2025-06-02
Transceivers look and feel high quality, and 25Gbps throughput is incredibly stable. My only complaint is that the protective rubber dust caps were a bit loose on two of the modules inside the package. Cleaned the connector interface before installation just to be safe, and they work perfectly.
Please write comments with more than three
character.
495682
554260
F***m
Ireland
Verified
Purchase
5 .0
2025-04-11
Great DOM functionality. Being able to monitor real-time laser bias current and internal temperature directly from our SNMP dashboard is critical for our remote infrastructure monitoring. Outstanding value.
Please write comments with more than three
character.
495682
554244
S***r
United Kingdom
Verified
Purchase
5 .0
2023-05-03
It is always a pleasure to purchase from l-p.com. Their website is easy and friendly to use and the products have great descriptions and always accurately show. Customer service is the best I've experienced..
United States · English · USD
