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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.
| FS Part Number | SFP-25GMLR-31-I | Vendor Name | LINK-PP |
| Form Factor | SFP28 | Max Data Rate | 25.78Gbps |
| Wavelength | 1310nm | Max Cable Distance | 10km |
| Connector | Duplex LC | Media | SMF |
| Transmitter Type | DFB | Receiver Type |
PIN |
| TX Power | -8 to +3dBm | RX Power | -14 to +3dBm |
| Receiver Sensitivity | <-13dBm | Receiver Overload | 2dBm |
| Operating Temperature Range | -40 to 85°C | Protocols | SFF-8472, SFF-8024, SFF-8431, SFF-8432, CEI-28G-VSR |
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.
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.
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.
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.
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.
These authoritative industry credentials validate the module's eco-friendly design, safe electrical engineering, and premium manufacturing standards.
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.
Measure central wavelength and spectral width for precise laser output.
Analyze signal quality and timing jitter to prevent data distortion.
Verify data transmission accuracy to guarantee zero-packet-loss network links.
Validate stable module operations under extreme industrial thermal conditions.
We ensure secure transit for your SFP28 optical modules. Your orders ship quickly via trusted international networks.
Shield fragile electrical components from static damage during transit.
Secure modules safely inside durable containers to prevent physical damage.
Accelerate order handling to ensure rapid product shipment tracking.
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.
LINK-PP offers end-to-end technical support, from pre-sales consultation to post-deployment assistance, ensuring smooth integration and reliable network performance.
Professional guidance to help you select the optimal SFP-25GMLR-31-I module for your network design and application needs.
Validated compatibility with LINK-PP switches and other mainstream networking platforms for seamless deployment.
Comprehensive step-by-step guidance for installation, configuration, and initial setup, ensuring accurate deployment and reliable, stable operation from the start.
Ongoing technical support throughout the product lifecycle, delivering long-term stability for enterprise and carrier-grade networks.
LINK-PP provides after-sales support for the smooth deployment and reliable operation of the optical modules.
15-day no-reason return and refund
Free replacement for dead-on-arrival (DOA) or defective items within the initial period
Free repair services for manufacturing defects throughout the warranty period
Warranty exclusions and conditions apply
Compatible | FS | FS | FS | FS | FS | FS |
Data Rate (Max) | 25.78Gbps | 25.78Gbps | 25.78Gbps | 25.78Gbps | 10/25.78Gbps | 25.78Gbps |
Wavelength | 1310nm | 1310nm | 1310nm | 1310nm | 850nm | 1310nm |
Connector | Duplex LC | Duplex LC | Duplex LC | Duplex LC | Duplex LC | Duplex LC |
Cable Distance (Max) | 10km | 2km | 30km | 40km | 100m | 10km |
Cable Type | SMF | SMF | SMF | SMF | MMF | SMF |
TX Power | -8 to +3dBm | 8 to +3dBm | -8.4~2.4dBm | -8 to +3dBm | ||
Receiver Sensitivity | <-13dBm | -13.3dBm | -19dBm | -19dBm | <-10.3dBm | -14 to +3dBm |
Operating Temperature | -40 to 85°C | -40°C to +85°C | -40°C to +85°C | -40°C to +85°C | 0°C to +70°C | -40 to 85°C |
Vendor Name | LINK-PP | LINK-PP | LINK-PP | LINK-PP | LINK-PP | LINK-PP |
Form Factor | SFP28 | SFP28 | SFP28 | SFP28 | SFP28 | SFP28 |
Transmitter Type | DFB | DFB | EML | EML | VCSEL | DFB |
Receiver Type | PIN | PIN | APD | APD/TIA | PIN | PIN |
Receiver Overload | 2dBm | 2.4dBm | 2dBm | |||
Protocols | SFF-8472, SFF-8024, SFF-8431, SFF-8432, CEI-28G-VSR | MSA Compliant, CPRI, eCPRI | MSA Compliant, CPRI, eCPRI | SFF-8472, SFF-8432, SFF-8431 | SFF-8472, SFF-8024, SFF-8431, SFF-8432 | SFF-8472, SFF-8402, SFF-8432, SFF-8431, CEI-28G-VSR |
| Pictures | ID# | Description | Price | Stock | Add to Cart |
Q: We need to deploy 50 units for a 5G wireless fronthaul network. Does it meet the eCPRI latency requirements? By G***n on 2026-02-13
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 on 2026-02-14
Q: What is the maximum power consumption per port when all 48 ports on a leaf switch are fully loaded with these LS-SM3125E-10I SFP28 transceivers? By H***n on 2025-10-17
A: Each transceiver module draws less than 1.2W, ensuring your core switch stays cool and well within its aggregate thermal power budget. By admin on 2025-10-18
Q: Can this SFP28 transceiver operate at 10Gbps, or is it strictly for 25Gbps networks? By F***y on 2025-05-22
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 on 2025-05-23
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