LS-SM3125-02C defines a 25G SFP28 optical transceiver that operates at 1310nm over duplex LC/UPC-terminated single-mode fiber, delivering error-free transmission up to 2km while incorporating real-time DOM diagnostics for precise link monitoring.
LINK-PP Part Number
LS-SM3125-02C
Vendor Name
LINK-PP
Form Factor
SFP28
Max Data Rate
25.78Gbps
Wavelength
1310nm
Max Cable Distance
2km
Connector
Duplex LC
Media
SMF
Transmitter Type
DFB
Receiver Type
PIN
Tx Power
8 to +3dBm
Rx Power
-14 to +3dBm
Receiver Sensitivity
-13.3dBm
Operating Temperature range
0°C to +70°C
Protocols
MSA Compliant, CPRI, eCPRI
Warranty
5 Years
Key Features of LINK-PP LS-SM3125-02C 25G SFP28
LINK-PP LS-SM3125-02C is a 25G SFP28 transceiver that combines a 1310nm DFB laser, a PIN photodiode, and a duplex LC/UPC interface for 2km single‑mode fiber links. It includes digital DOM for real‑time signal monitoring and supports stable operation across a wide temperature range. Together, these features make the module a reliable choice for short‑reach metro and access connections.
LINK-PP LS-SM3125-02C 25G SFP28 Optical Module
This module is built around a 1310nm DFB transmitter and a PIN receiver. The DFB delivers low chromatic dispersion, while the PIN ensures sufficient sensitivity for the 2km reach. Both components are integrated in a standard SFP28 form factor.
LS-SM3125-02C: 25 Gbps Connectivity for Metro Access Links
Designed for metro access networks, this module provides 25Gbps data rate over existing single‑mode fiber infrastructure. Its 2km range covers typical aggregation and edge connections, reducing the need for additional signal regeneration.
LS-SM3125-02C Module with 1310nm Wavelength
The 1310nm wavelength offers a well‑balanced operating window with low attenuation in standard single‑mode fiber. It also avoids the cost and complexity of longer‑reach 1550nm optics while maintaining good performance for short‑distance links.
LS-SM3125-02C Module Supporting 2km Transmission
With a transmission distance of up to 2km, this module is ideal for intra‑building, campus, or metro edge deployments. It easily covers the reach required for most rack‑to‑rack and floor‑to‑floor connections without using external amplifiers.
LS-SM3125-02C Module with Duplex LC/UPC Interface
The duplex LC/UPC connector ensures quick and secure mating with standard fiber patch cords. Its UPC polish minimizes back reflection, which helps maintain signal integrity in bidirectional data links.
LS-SM3125-02C Module with DOM for Real‑Time Monitoring
Digital Optical Monitoring (DOM) provides real‑time access to parameters such as transmitter power, receiver power, temperature, and supply voltage. This feature enables proactive link health checks and simplifies troubleshooting during network operation.
LINK-PP LS-SM3125-02C 25G SFP28 Certification
LINK-PP LS-SM3125-02C meets international standards such as ISO 9001, CE, RoHS, and FCC to ensure product quality and compliance.
Each module undergoes strict testing procedures to verify stable optical and electrical performance.
LS-SM3125-02C Quality Certifications
The module follows recognized industry standards to ensure consistent manufacturing and product reliability.
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.
LS-SM3125-02C Certified for Reliable Host-Device Compatibility
It is tested for compatibility with various networking devices to ensure stable and seamless operation.
LINK-PP LS-SM3125-02C passes multiple tests to ensure stable 25G transmission and consistent quality. For further details, refer to the LINK-PP Test Support Center.
Optical Spectrum Test
Verify wavelength accuracy and output power levels.
Eye Pattern Test
Check signal quality via open eye diagrams.
Bit Error Rate Test
Measure error counts under various data patterns.
Temperature Test
Test performance from cold start to hot operation.
Product Shipping for LINK-PP LS-SM3125-02C 25G SFP28
LINK-PP LS-SM3125-02C is carefully prepared to ensure safe delivery and product integrity. Orders are handled quickly with reliable global shipping services.
Anti-Static Protective Packaging
Protect modules from static damage during handling and shipping.
Shock-Resistant Transport Protection
Reduce impact risks during transportation and handling.
Fast Order Processing and Dispatch
Ensure quick processing and timely shipment of orders.
Global Logistics and International Delivery
Support worldwide shipping with reliable delivery services.
To operate, simply insert the LS-SM3125-02C SFP28 transceiver into a compatible host, attach the single-mode fiber with duplex LC connectors, and verify link status via DOM. This module supports 25G Ethernet for data center top-of-rack, inter-rack, and edge aggregation, making it a straightforward solution for dense network environments.
LS-SM3125-02C 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 LS-SM3125-02C 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, the high-strength structural pull-tab is specifically engineered to endure repeated extraction cycles in high-density rack configurations. By
admin on
2026-04-22
A:
No, this module requires single-mode fiber to operate correctly; attempting to use multi-mode fiber will result in severe signal loss. By
admin on
2026-01-30
A:
Yes, it features full DDM/DOM compliance per SFF-8472, allowing you to monitor real-time temperature, supply voltage, laser bias current, and optical power via your network management software. By
admin on
2025-11-05
A:
No, a full polarity crossover results in a complete Loss of Signal (LOS) across all channels, shifting the interface status directly to link-down. By
admin on
2025-08-12
A:
Yes, we offer tiered wholesale pricing and customized quotes for volume corporate orders; please contact our sales support team directly. By
admin on
2025-03-14
Deployed these 25G SFP28 modules in an air-conditioned indoor data center environment. They run cool and stable. 1310nm single-mode fiber standard is definitely the sweet spot for modern enterprise backbones.
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491665
346548
N***n
Netherlands
Verified
Purchase
5 .0
2026-02-10
We recently upgraded our enterprise campus core network from 10G to a 25G SFP28 infrastructure using 100 units of the LINK-PP LS-SM3125-02C optical module. We deployed them on our switches, and they were recognized instantly without any issues. Over a 2km single-mode fiber run using standard Duplex LC cords, the real-time DDM metrics stayed completely stable. Under a heavy 72-hour stress test, we observed zero packet drops or CRC errors. This commercial-grade 1310nm transceiver is an excellent, cost-effective choice for modern server room upgrades.
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491665
346558
G***n
Australia
Verified
Purchase
5 .0
2026-01-15
Needed a budget-friendly 25G solution for our basestation backhaul pilot. These SFP28 modules connected seamlessly over 1.5km of single-mode fiber. Latency is rock solid under full load testing.
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491665
346551
Q***n
United States
Verified
Purchase
4 .0
2026-01-04
Product is outstanding — zero packet loss on our 25G single-mode fiber link. However, delivery to our East Coast server room was delayed by two days due to a customs clearance hitch. Order well in advance if you have strict deployment timelines.
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491665
346561
K***n
Republic of Korea
Verified
Purchase
5 .0
2025-12-04
Highly impressed with the build quality. The pull-tab mechanism feels durable, which matters when you're swapping modules in a cramped 42U rack. Outstanding 25G single-mode optical module.
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491665
346545
H***y
India
Verified
Purchase
5 .0
2025-10-09
Upgraded our distribution layers from 10G to 25G SFP28 using these single-mode 1310nm 2km optics transceivers. Perfect choice for mid-range campus links where 850nm SR module just can't reach. Zero packet loss over 48 hours of stress testing.
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491665
346552
P***m
Norway
Verified
Purchase
5 .0
2025-09-30
Running a busy colocation data center means we need optical modules that can handle high-density setups without failing. We bought a large batch of these LINK-PP 25G SFP28 transceiver modules for a client's storage network over single-mode fiber. The compatibility profile is outstanding, as they configured perfectly with our switches at a full line rate of 25.78Gbps. The thermal dissipation is highly efficient, preventing hot spots in cramped 1U servers. They meet every standard required for our network infrastructures.
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491665
346560
I***h
Brazil
Verified
Purchase
5 .0
2025-08-22
Solid commercial temperature rating (0°C to 70°C). Our indoor server racks fluctuate during summer but these modules keep their cool and maintain a full 25.78Gbps line rate throughput.
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491665
346549
O***n
Sweden
Verified
Purchase
5 .0
2025-07-19
For our regional basestation backhaul network upgrade, finding reliable 25G transceivers that comply strictly with open standards was our top priority. We selected this 1310nm 2km 25G SFP28 module for our indoor aggregation equipment. Our on-site technicians highly appreciated the strong build quality; the Duplex LC interface provides a secure click that stays stable against rack vibrations. The DOM digital diagnostics easily export real-time temperature and power data to our monitoring dashboard. Even when the server rack gets hot, these modules keep running smoothly without overheating.
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491665
346559
J***w
Mexico
Verified
Purchase
5 .0
2025-06-14
Excellent value for 25G enterprise campus optical transceivers. We ran them through a fiber patch panel across three floors — Duplex LC connector snugness is top-tier. No loose connections.
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491665
346554
F***k
Canada
Verified
Purchase
5 .0
2025-05-03
Deployed 50 of these LS-SM3125-02C 25G SFP28 modules across our main corporate campus fiber network. They are drawing very low power and DOM metrics are spot on in our aggregation switches. Will buy more!
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491665
346550
M***d
Russian Federation
Verified
Purchase
5 .0
2025-04-27
Perfect for bulk deployment. Our procurement department loves the cost savings. We've replaced our expensive brand-name 2km 25G SFP28 optical transceivers with these, and performance is completely identical.
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491665
346557
R***m
Finland
Verified
Purchase
4 .0
2025-03-29
The optics themselves perform beautifully at 25Gbps line rate. However, international customs clearance held up the freight at the border for two days because the carrier filed the commercial invoice under the wrong tariff code. Give yourself a buffer week if you have a tight deployment deadline.
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