SFP-25G-LR-S is a 25G SFP28 single-mode optical transceiver module that engineered for precision data delivery, sustaining an ultra-lean maximum power consumption of 1.2W while driving 1310nm wavelengths across distances up to 10km with integrated DOM diagnostics.
Cisco Part Number
SFP-25G-LR-S
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
Receiver Sensitivity
-13dBm
Receiver Overload
2dBm
TX Power
-8 to +3dBm
RX Power
-14 to +3dBm
DOM
Supported
Protocols
MSA Compliant, CPRI, eCPRI
Key Features of Cisco SFP-25G-LR-S Compatible LINK-PP 25G SFP28
Cisco SFP-25G-LR-S Compatible LINK-PP module is a 25GBASE-LR SFP28 optical transceiver designed for dependable single-mode fiber deployments. This module integrates a 1310nm wavelength and real-time DOM monitoring to ensure stable, long-distance data transmission up to 10km. It combines energy efficiency with high-speed connectivity to optimize modern network infrastructures.
This module is engineered for excellent thermal and energy efficiency in demanding environments. It features a 1.2W maximum power consumption with an established link, significantly reducing operational costs. The hot-pluggable SFP28 design also allows for easy installation and maintenance without disrupting network services.
SFP-25G-LR-S: 25 Gbps Connectivity for High-Density Uplinks
This transceiver delivers a reliable 25Gbps data rate to meet the growing bandwidth demands of modern data centers. It provides a perfect migration path from standard 10G networks to faster, more scalable architectures. The increased throughput ensures efficient handling of high-density uplink traffic.
SFP-25G-LR-S Module with 1310nm Wavelength
Operating at a 1310nm optical wavelength, this module ensures minimal signal degradation over single-mode fiber. The chosen spectrum is ideal for local area networks and metropolitan transport systems. It utilizes advanced laser technology to maintain stable signaling across the entire link.
SFP-25G-LR-S Module Supporting 10km Transmission
Designed for long-distance transmission, this module reliably supports data transmission distances up to 10km. It is highly effective for connecting enterprise campuses, central offices, and distributed data center facilities. This long-reach capability eliminates the need for mid-span amplification.
SFP-25G-LR-S Module with Duplex LC/UPC Interface
The module comes equipped with an industry-standard duplex LC/UPC connector for secure fiber termination. This interface ensures low insertion loss and excellent back-reflection to protect signal integrity. Its compact connector design maximizes panel density in standard patch panels and switches.
SFP-25G-LR-S Module with DOM for Real-Time Monitoring
Featuring built-in Digital Optical Monitoring (DOM), this transceiver tracks vital operating parameters in real time. Network administrators can easily monitor transceiver temperature, supply voltage, and optical power levels. This proactive diagnostic tool helps prevent link failures and simplifies troubleshooting.
The Cisco SFP-25G-LR-S Compatible LINK-PP 25G SFP28 module meets strict international quality standards, holding major industry certifications including ISO 9001, CE, RoHS, and FCC.
Every module undergoes rigorous hardware testing to ensure stable network performance before leaving the factory.
SFP-25G-LR-S Quality Certifications
These official compliance certificates guarantee that the transceiver adheres to global environmental, safety, and electromagnetic 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-25G-LR-S Certified for Reliable Host-Device Compatibility
The module is fully certified to work seamlessly across a wide range of major brand switches, routers, and servers without any interface issues.
Every SFP28 optical module undergoes extensive validation to guarantee stable high-speed data transmission, and you can explore our complete evaluation procedures at the LINK-PP Test Support Center.
Optical Spectrum Test
Verify precise laser wavelengths to ensure minimal signal degradation.
Eye Pattern Test
Analyze signal integrity to guarantee clean data transmission shapes.
Bit Error Rate Test
Measure data packet accuracy to confirm flawless network reliability.
Temperature Test
Evaluate thermal endurance to maintain stable performance under heat.
Product Shipping for Cisco SFP-25G-LR-S Compatible LINK-PP 25G SFP28
We provide secure and efficient delivery services for all transceiver orders worldwide. Our team guarantees safe transit to protect your networking investments.
Anti-Static Protective Packaging
Shield delicate transceiver circuitry from harmful electrostatic discharge during handling.
Shock-Resistant Transport Protection
Safeguard optical components against severe vibrations during structural transit.
Fast Order Processing and Dispatch
Accelerate order fulfillment to ensure rapid turnaround times for customers.
Global Logistics and International Delivery
Deliver network hardware safely to worldwide destinations via trusted carriers.
Simply plug this hot-swappable optical module into any compatible 25G SFP28 slot and connect your duplex LC/UPC single-mode fiber cable. It immediately activates for high-density uplink routing, enterprise network backbones, and 5G wireless fronthaul deployments requiring dependable 10km data transmission.
SFP-25G-LR-S 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-25G-LR-S 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.
Get clear answers about the laser architecture, connector types, signaling methods, and power efficiency of the SFP-25G-LR-S single-mode module.
The module incorporates a highly reliable Distributed Feedback (DFB) laser architecture, which maintains spectral stability across long distances under varying thermal loads.
No, the interface is explicitly designed for Duplex LC/UPC (Ultra Physical Contact) flat connectors. Forcing an APC-angled fiber plug into it will cause high insertion loss.
This module utilizes standard non-return-to-zero (NRZ) modulation at a serial line rate of 25.78Gbps, ensuring low latency compared to PAM4 optics.
Its ultra-lean 1.2W draw keeps the switch's overall thermal dissipation low, preventing port-throttling or cooling fans from ramping up to maximum velocity in fully populated 48-port switches.
A:
Yes, the built-in DDM framework registers voltage, temperature, bias current, and optical power precisely according to SFF-8472 industry guidelines. By
admin on
2026-04-29
A:
Yes, the module is fully engineered for hot-plugging, allowing clean physical installation without causing power spikes or interrupting adjacent data lanes. By
admin on
2026-03-16
A:
No, both ends of the physical layer span must utilize matching 1310nm center wavelengths to successfully establish optical synchronization. By
admin on
2025-11-11
A:
No, because modal dispersion is primarily a characteristic of multimode infrastructure. When operating at a 1310nm wavelength over standard single-mode fiber, chromatic dispersion is minimal, though legacy fiber quality and patch panel degradation should still be verified to ensure proper attenuation margins. By
admin on
2025-10-19
Great option for 25G single-mode SFP optical transceivers. We use them for high-capacity uplinks between aggregation points in an air-conditioned colocation facility. SFF-8472 compliance is verified; digital diagnostics report accurate temperature levels.
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476768
381607
B***l
United States
Verified
Purchase
5 .0
2026-05-16
Accurate telemetry is crucial for our automated monitoring stack, and the DOM functions on these modules deliver exactly what we need. Rx/Tx power levels are stable and updating in real-time without glitching the system log.
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476768
381615
Y***n
United Arab Emirates
Verified
Purchase
5 .0
2026-03-18
Using these for an enterprise network infrastructure refresh. The duplex LC connectors are well-molded, and the extraction latches feel sturdy enough for repeated patching during maintenance windows. No packet drops detected over a 72-hour stress test.
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476768
381611
X***g
Austria
Verified
Purchase
5 .0
2026-01-09
Campus Backbone Upgrade Success: We recently migrated our core campus distribution links from 10G to 25G SFP28 to support increased wireless access point density. These 1310nm 10km duplex LC optics were installed across four separate distribution closets. The fiber light launch mechanics are clean, keeping modal dispersion well within acceptable margins over our single-mode runs. Total power draw per module is minimal, keeping our PoE-heavy edge switches running within their thermal design envelopes. Highly recommend these for enterprise network infrastructure upgrades.
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476768
381616
Z***t
United States
Verified
Purchase
4 .0
2025-10-31
Pristine optical receiver sensitivity and clean eye patterns during field verification. The bail wire extraction latch is highly secure but feels a little stiff on the initial pull; you just need to exert a bit more even pressure to unlock it from the cage slot.
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476768
381614
Y***n
South Africa
Verified
Purchase
5 .0
2025-07-12
We utilize these commercial-grade 25G transceivers inside our temperature-controlled indoor cabinets at our regional aggregation points. Operating at 1310nm over single-mode fiber infrastructure, they maintain tight spectral widths. The duplex LC/UPC interface ensures minimal insertion loss upon connection. For anyone managing B2B e-commerce procurement for telco setups, these modules deliver the exact technical specifications required for high-reliability links without the inflated price tags of original branding.
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476768
381612
V***s
Brunei Darussalam
Verified
Purchase
5 .0
2025-06-03
Solid performance on our 25GbE optical transceiver deployment. We tested these over an 8km single-mode run across our corporate facility, and the received power remained comfortably within the recommended safety margins. No CRC errors.
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476768
381606
A***s
Poland
Verified
Purchase
5 .0
2024-04-01
LINK-PP is a company with excellent sales people. They are technically oriented and know their products well. I have used them several times. Right product, on time, every time!
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476768
381604
J***n
India
Verified
Purchase
5 .0
2024-03-18
The shipment has arrived and I have to praise the packaging of the Optical Transceiver Module and especially the new 10/25/40G Transceiver Modules sealed boxes. Thx.
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476768
381603
M***m
Belgium
Verified
Purchase
5 .0
2023-05-19
The experience with l-p.com was very good. The only complaint was that 10/25/40G Transceiver Modules was received a little late than I expected. Hope it would be Faster for my next purchase. Thank you.
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