LS-MM851G-02I operates as an industrial-grade 1G SFP optical module that transmits at an 850nm wavelength across a 2km range via 50/125µm MMF, maintaining full compliance with SFP MSA and SFF-8472 protocols while enduring extreme temperatures from -40 to +85°C.
LINK-PP LS-MM851G-02I is a reliable, industrial-grade 1G SFP transceiver engineered for rugged environments operating between -40 and +85°C. This multi-mode module combines a stable 850nm wavelength, 2km reach, and digital optical monitoring capabilities to deliver dependable short-range fiber connectivity. It provides an efficient and standardized solution for robust network deployments.
LINK-PP LS-MM851G-02I 1G SFP Optical Module
This module features a hot-pluggable SFP footprint, allowing for easy installation and maintenance without powering down the host system. It integrates a highly dependable 850nm VCSEL laser and a sensitive PIN photo detector to ensure stable optical signal conversion. The design strictly follows industry standards for seamless equipment interoperability.
LS-MM851G-02I: 1 Gbps Connectivity for Campus Networks
Delivering a stable data rate of 1Gbps, this transceiver handles everyday enterprise and industrial traffic smoothly across campus environments. It serves as an ideal solution for linking switches and routers across modern smart factories, industrial parks, and technical corporate campus networks. This gigabit bandwidth ensures reliable communication for both critical automation data and essential office operations.
LS-MM851G-02I Module with 850nm Wavelength
Operating at a standard 850nm short-wavelength, this transceiver is optimized for efficient light transmission over multi-mode optical fibers. This choice of wavelength utilizes cost-effective laser components while maintaining strong signal integrity. It provides a reliable foundation for enterprise and industrial local networks.
LS-MM851G-02I Module Supporting 2km Transmission
This optical transceiver reliably supports data transmission distances up to 2km when paired with 50/125µm multi-mode fiber cabling. This 2km reach offers plenty of coverage for connecting separate buildings within a single facility or factory ground. It bridges local network gaps without requiring more expensive single-mode infrastructure.
LS-MM851G-02I Module with Duplex LC Interface
Equipped with an industry-standard duplex LC optical connector, the transceiver ensures a secure and tight physical fiber connection. The compact LC design allows for high port density on dense network switches and patch panels. It simplifies fiber patching and aligns with standard multi-mode patch cords.
LS-MM851G-02I Module with DOM for Real-Time Monitoring
Featuring built-in Digital Optical Monitoring (DOM), this transceiver gives network administrators real-time access to critical operating parameters. You can track internal diagnostics such as laser temperature, optical output power, received signal strength, and supply voltage. This continuous monitoring helps catch potential issues early and minimizes network downtime.
LINK-PP LS-MM851G-02I 1G SFP Certification
LINK-PP LS-MM851G-02I is manufactured under a strict quality management system and carries global compliance certifications including ISO 9001, CE, RoHS, and FCC.
Every transceiver undergoes rigorous optical and environmental test procedures to guarantee stable operation before shipment.
LS-MM851G-02I Quality Certifications
These regulatory approvals verify that the optical module meets strict international standards for safety, environmental safety, and electromagnetic interference.
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-MM851G-02I Certified for Reliable Host-Device Compatibility
The module is fully certified to ensure seamless plug-and-play operation and reliable hardware communication across a wide range of multi-vendor networking switches and routers.
Rigorous Testing Ensures Reliable SFP Performance
LINK-PP LS-MM851G-02I undergoes comprehensive qualification procedures to ensure stable network operations in harsh environments, and you can explore our complete evaluation criteria at the LINK-PP Test Support Center.
Optical Spectrum Test
Verify central wavelength precision to prevent signal degradation.
Eye Pattern Test
Analyze optical signal quality for clear data transmission.
Bit Error Rate Test
Measure data packet integrity to ensure zero-loss connectivity.
Temperature Test
Confirm reliable operation under extreme thermal conditions.
Product Shipping for LINK-PP LS-MM851G-02I 1G SFP
LINK-PP LS-MM851G-02I is prepared carefully to guarantee safe arrival at your deployment site. Our secure logistics system coordinates rapid domestic and international shipping options.
Anti-Static Protective Packaging
Protect sensitive internal electronics against dangerous electrostatic discharge.
Shock-Resistant Transport Protection
Secure the optical modules firmly to survive rough transit movements.
Fast Order Processing and Dispatch
Accelerate order handling to ensure rapid warehouse departure.
Global Logistics and International Delivery
Ship items worldwide through reliable and experienced courier networks.
LINK-PP LS-MM851G-02I 1G SFP Usage Demonstration
LINK-PP LS-MM851G-02I SFP optical module features a hot-pluggable design for quick, seamless installation into network switches without powering down systems. This industrial-grade module is widely deployed to provide stable, short-range fiber connectivity across factory automation networks, campus backbones, and smart city infrastructure.
LS-MM851G-02I 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-MM851G-02I 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 runs on a single +3.3V supply, so it’s fully compatible with standard 3.3V SFP slots — no extra power conversion needed. By
admin on
2026-03-11
A:
It’s low-power and stays cool under normal 1G loads. The industrial temp rating also gives extra headroom in dense, hot environments. By
admin on
2025-11-09
A:
Yes, it’s an industrial-grade optical module with an operating case temperature range of -40°C to +85°C, perfect for harsh outdoor environments. By
admin on
2025-08-03
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Yes, the module is rated for up to 2km on 50/125µm multi-mode fiber, so 1.6km is well within its comfortable operating range at 1Gbps. By
admin on
2025-05-29
Bought these transceiver modules for a campus fiber upgrade. The 850nm multi-mode SFP paired perfectly with our existing OM1 cabling. DOM support makes troubleshooting way easier. No compatibility headaches so far!
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494817
395864
H***s
New Zealand
Verified
Purchase
5 .0
2026-05-02
We recently completed a campus network upgrade requiring extended-reach 1GbE links across detached manufacturing buildings. Standard 850nm optics usually top out around 550m over multi-mode fiber, but these industrial 1G SFP 850nm 2km optical transceivers allowed us to bridge the 1.4km gap using existing MMF cabling plant without pulling single-mode fiber. Upon inserting into our enterprise access switches, the port link came up instantly at 1.25 Gbps line rate. We ran stress tests for 72 hours, monitoring optical budget and thermal dissipation via DDM/DOM parameters. Receiver sensitivity stayed steady within spec limits, and optical transmit power showed zero degradation across high thermal load cycles. Extremely satisfied with hardware stability.
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494817
395859
E***n
Russian Federation
Verified
Purchase
5 .0
2026-04-05
Deployed a batch of these industrial-grade 1G 850nm SFP modules across our sub-zero storage facilities. Operating temperature tolerance (-40°C to +85°C) is key for us. The duplex LC connectors feel sturdy and optical telemetry is spot on.
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494817
395873
L***z
Sweden
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Purchase
5 .0
2026-03-21
We needed a reliable 1G multi-mode SFP transceiver for a small NAS setup over fiber. This 850nm SFP worked out of the box with our managed switch. The 2km reach is more than enough for our rack-to-rack links.
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494817
395867
O***s
Spain
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Purchase
5 .0
2026-02-16
For anyone running 1G fiber in a campus or factory, this is a solid pick. The 850nm wavelength and DOM support make it easy to integrate into existing monitoring stacks.
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494817
395861
M***z
South Africa
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Purchase
5 .0
2026-01-09
We installed 20 units in a manufacturing plant with high ambient heat and dust, and another 10 in outdoor telecom cabinets exposed to direct sun and night-time cooling. The modules maintained stable 1.25Gbps links over 1.2–1.9km MMF runs. The DDM data helped us identify one bad patch cord (high loss) before it caused user impact. No thermal shutdowns or SFP alarms, even when cabinet temps hit ~70°C. The duplex LC receptacle locks securely, which matters in high-vibration areas. The single +3.3V supply and low power draw keep our DC power budgets predictable.
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494817
395876
S***e
Singapore
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Purchase
5 .0
2025-12-18
These 850nm SFP modules are now our standard for 1G multi-mode fiber links. The 2km reach and industrial-grade temperature range cover most of our deployment scenarios. Easy to source and deploy in bulk.
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494817
395863
E***s
Belgium
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Purchase
4 .0
2025-11-28
Functionally, this is a solid 1G SFP with good DOM support and stable 2km links. The only downside was shipping time; it took about 3 days longer than the estimate. Once installed, though, it’s been rock solid.
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494817
395856
A***e
Philippines
Verified
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5 .0
2025-10-23
We rolled out these LS-MM851G-02I transceiver modules across a 12-building campus using multi-mode fiber. Each link spans 800m–1.8km at 1Gbps. All ports negotiated instantly with correct 1G Ethernet operation. Real-time DDM (TX/RX power, temperature, bias current) is accurate and maps cleanly into our SNMP monitoring stack. The -40°C to +85°C industrial case temperature rating is critical for our outdoor fiber distribution hubs. After 6 weeks of 24/7 traffic, we’ve had zero RMAs or link instability events. These are now our default for 1G MMF uplinks.
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494817
395875
J***z
Mexico
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5 .0
2025-10-08
Great value for a DOM-enabled multi-mode SFP. We use these for 1G uplinks between switches in different buildings. The module stays cool and reports accurate TX/RX power in our monitoring tools.
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494817
395866
N***n
Netherlands
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5 .0
2025-09-02
The build quality feels premium for the price. We’re using these 850nm SFP modules in an industrial environment with wide temp variations. So far, zero link flaps or SFP alarms after a month of 24/7 operation.
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494817
395869
M***n
Indonesia
Verified
Purchase
5 .0
2025-08-31
From a NOC perspective, these 1G multi-mode SFP modules are a joy. The Real Time Digital Diagnostic Monitoring data maps cleanly into our monitoring stack. We can set thresholds for RX power and temperature, and the alarms trigger correctly. We’ve used them in both indoor wiring closets and outdoor fiber termination points, thanks to the -40 to +85°C operating case temperature. The 2km MMF spec gives us headroom for future building additions without rewiring. The hot-pluggable SFP footprint makes field swaps quick and safe.
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494817
395860
W***r
Italy
Verified
Purchase
5 .0
2025-07-25
We replaced some aging SFP modules with these LINK-PP optical transceivers and saw immediate improvement in link stability. The duplex LC connector is a perfect fit for our patch panels.
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494817
395871
I***z
India
Verified
Purchase
5 .0
2025-06-30
Our IT team deployed 30+ units in a data hall. The duplex LC interface slides in cleanly, and the industrial temperature rating gives us confidence for edge locations. Link stability is excellent over 2km runs.
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494817
395865
L***e
Malaysia
Verified
Purchase
5 .0
2025-06-12
We replaced a mixed bag of legacy SFP modules with these LS-MM851G-02I transceivers across 3 sites. The consistent 1.25Gbps performance and full DDM support simplified our spares strategy. The 850nm wavelength aligns with our existing MMF infrastructure, so no need to re-terminate. The industrial temperature rating means we can use the same product for indoor and outdoor deployments, reducing inventory complexity. RoHS compliance was a must for our green procurement policy, and these modules check that box. The single +3.3V power supply integrates seamlessly with our existing switch power rails.
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494817
395878
M***n
Norway
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Purchase
5 .0
2025-05-19
Ordered a batch for a base station backhaul project. These 1G SFP modules handle the temperature swings in our outdoor enclosures without issue. The DDM data helps us catch any fiber degradation early.
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494817
395858
E***k
Austria
Verified
Purchase
4 .0
2025-04-07
Transceiver hardware quality is superb, locked 1.25G link immediately over our 1.1km MMF run. Outer shipping carton arrived slightly compressed on one corner, though inner packaging protected all optical modules inside. Excellent product performance overall.
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494817
395880
L***n
Thailand
Verified
Purchase
5 .0
2025-02-28
Integrating these 850nm SFP optical modules into our high-speed local NAS links and core switches. Low-latency optical transmission with reliable link lock right upon insertion. Will reorder for upcoming expansion.
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