The LINK-PP LS-SC55311G-40I is an industrial-grade 1G BiDi SFP transceiver engineered for Gigabit Ethernet and 1.063Gbps Fiber Channel applications. Utilizing WDM technology over single-mode fiber, this 1.25Gbps optical module delivers high-speed data transmission. Its robust MSA-compliant design ensures seamless integration into various networking environments requiring reliable, long-distance connectivity.
LINK-PP Part Number
LS-SC55311G-40I
Vendor Name
LINK-PP
Form Factor
SFP
Max Data Rate
1.25Gbps
Wavelength
1550nm-TX/1310nm-RX
Max Cable Distance
40km
Connector
Simplex SC
Media
SMF
Transmitter Type
DFB
Receiver Type
PIN
TX Power
-9 to 0dBm
RX Power
-23 to -1dBm
Receiver Sensitivity
-24dBm
Receiver Overload
-3dBm
DOM Support
Yes
Operating Temperature Range
-40 to 85°C
Key Features of LINK-PP LS-SC55311G-40I 1G BiDi SFP
This hot-pluggable 1G BiDi transceiver features an advanced 1550nm DFB laser and integrated PIN photodiode. Operating efficiently with a single 3.3V power supply, this industrial fiber optic module guarantees incredibly stable performance across extreme environments, supporting wide temperature ranges from -40°C to +85°C.
As a highly cost-effective single-fiber bidirectional optical module, the LS-SC55311G-40I maximizes existing infrastructure. It is fully SFF-8472 compliant, offering network operators a reliable, compact form-factor pluggable solution for upgrading enterprise networking systems.
LS-SC55311G-40I: 1G Connectivity for Industrial IoT (IIoT) Gateways
Designed to withstand harsh environments, this rugged SFP module provides resilient 1G connectivity for Industrial IoT (IIoT) gateways. It ensures uninterrupted data flow for smart factory automation, outdoor surveillance, and remote telecom cell sites.
LS-SC55311G-40I Module with 1550nm-TX and 1310nm-RX Wavelength
Utilizing wavelength division multiplexing, this WDM SFP module transmits at a 1550nm wavelength while receiving at 1310nm. This efficient bidirectional communication eliminates the need for dual fibers, significantly reducing optical cabling costs.
Engineered for long-haul transmission, the transceiver supports an impressive 40km reach over single-mode fiber (SMF). Its high optical link budget guarantees minimal signal degradation, making it perfect for connecting distant metropolitan area networks.
LS-SC55311G-40I Module with Simplex SC Interface
Equipped with a standard Simplex SC connector, this bidirectional optical transceiver ensures a secure and precise fiber optic mating interface. The SC receptacle allows for quick, tool-free installation in high-density telecommunication racks.
LS-SC55311G-40I Module with DDM for Real-Time Monitoring
Featuring built-in Digital Diagnostic Monitoring (DDM), the module provides real-time diagnostic telemetry. Network administrators can easily track operating temperature, voltage, laser bias current, and optical power to proactively manage fiber link health.
LINK-PP LS-SC55311G-40I 1G SFP Certification
The LINK-PP 1G BiDi transceiver guarantees strict regulatory compliance. It meets comprehensive global safety standards, ensuring secure deployment across enterprise and industrial networking infrastructures.
Every single module undergoes a rigorous quality assurance testing program. This extensive inspection process guarantees optimal optical performance and prevents hardware failures before leaving the factory.
LS-SC55311G-40I Quality Certifications
This robust optical component proudly holds essential industry certifications, including CE, FCC, UKCA, UL, RoHS, and REACH, verifying its electrical safety and environmental sustainability.
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-SC55311G-40I Certified for Reliable Host-Device Compatibility
Fully certified according to SFP MSA standards, the module ensures seamless interoperability. Experience reliable plug-and-play compatibility with major brands of switches, routers, and media converters.
Rigorous Testing Ensures Reliable SFP Performance
We conduct specialized laboratory tests on every industrial transceiver to guarantee peak efficiency, maximum durability, and consistent data transmission capabilities.
Optical Spectrum Test
Verifies the precise 1550nm transmission wavelength to ensure excellent signal integrity and zero dispersion.
Eye Pattern Test
Evaluates signal quality and jitter compliance for flawless 1.25Gbps optical data transmission.
Bit Error Rate Test
Confirms continuous, error-free networking operation over extended periods to guarantee superior reliability.
Temperature Test
Simulates extreme industrial environments from -40°C to +85°C to ensure stable thermal performance.
Product Shipping for LINK-PP LS-SC55311G-40I 1G SFP
We utilize a streamlined logistics network to ensure the prompt and secure delivery of your industrial fiber optic modules worldwide.
Anti-Static Protective Packaging
Modules are sealed in ESD-safe bags to prevent static electricity damage.
Shock-Resistant Transport Protection
Cushioned packaging safeguards the sensitive optical components from physical transit impacts.
Fast Order Processing and Dispatch
Enjoy rapid order processing that ensures quick warehouse dispatch and fulfillment.
Global Logistics and International Delivery
Reliable worldwide shipping options ensure your networking equipment arrives on time.
Simply insert the hot-swappable SFP transceiver into any MSA-compatible network switch port. Connect your single-mode fiber patching cable to the Simplex SC interface to instantly establish a resilient, long-haul 40km communication link without network downtime.
LS-SC55311G-40I Technical Support
LINK-PP provides professional technical support, including pre-sales consultation, compatibility verification, and post-deployment troubleshooting to ensure smooth network operation.
Pre-Sales Technical Consultation
Professional technical guidance to help customers select the most suitable LS-SC55311G-40I modules based on network architecture and application requirements.
Compatibility Verification Support
Compatibility checks and validation to ensure seamless operation with Cisco switches and other supported networking platforms.
Deployment & Installation Assistance
Step-by-step support for installation, configuration, and initial deployment to ensure stable and correct operation.
Long-Term Technical Assurance
Ongoing technical support throughout the product lifecycle to ensure reliable performance in enterprise and carrier-grade networks.
A:
Yes, it fully supports Digital Diagnostic Monitoring (DDM). Your network admins can easily monitor optical power, voltage, laser bias current, and operating temperature in real-time through your switch's CLI or management dashboard. By
admin on
2026-01-22
A:
Yes, you must pair this LS-SC55311G-40I (1550nm-TX/1310nm-RX) with its exact WDM counterpart that transmits at 1310nm and receives at 1550nm. Both will run smoothly over a single strand of standard Simplex SC Single Mode Fiber (SMF). By
admin on
2026-01-18
A:
Absolutely. It is fully MSA and SFF-8472 compliant, ensuring plug-and-play interoperability across major OEM brands like Cisco, Juniper, and Arista without throwing any vendor lock-in errors. By
admin on
2025-10-16
A:
Yes, we offer tiered pricing. For orders over 100 units, the price drops significantly, and there are additional discounts for higher volumes. Contact our sales team for a custom quote on large-scale deployments. By
admin on
2025-07-22
Please write comments with more than three
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491683
406766
M***s
United Kingdom
Verified
Purchase
5 .0
2026-02-16
Deployed 50 of these LS-SC55311G-40I modules for a metropolitan surveillance project. The -40 to 85°C rating is vital for outdoor cabinets. Completely plug-and-play with our ruggedized industrial PoE switches.
Please write comments with more than three
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491683
406767
B***n
Pakistan
Verified
Purchase
5 .0
2026-01-10
Upgraded our campus fiber network using these Simplex SC modules. By utilizing WDM technology, we doubled bandwidth without trenching new fiber. Perfect for reliable 1.063Gbps Fiber Channel NAS remote backups.
Please write comments with more than three
character.
491683
406753
D***z
Denmark
Verified
Purchase
5 .0
2025-10-04
Tested this 1G SFP BiDi 1550nm-TX/1310nm-RX in our edge telecom site. It handles 85°C summer rack temps flawlessly. DDM readouts match our fluke meters. Great OEM replacement for long-haul backhaul!
Please write comments with more than three
character.
491683
406772
R***s
Spain
Verified
Purchase
5 .0
2025-05-30
I manage a WDM network and these industrial 1G SC transceivers are excellent. Running them over 35km of single-mode fiber with zero packet loss. The DFB laser cuts through splice losses.
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