The LINK-PP LS-SM314G-40I SFP is an industrial-grade transceiver designed for Fibre Channel applications, supporting data rates of up to 4.25Gbps over single-mode fiber (SMF) with transmission distances of up to 40km. Its 1310nm wavelength also helps ensure stable, high-performance optical connectivity over long-haul links.
LINK-PP Part Number
LS-SM314G-40I
Vendor Name
LINK-PP
Form Factor
SFP
Max Data Rate
4.25Gbps
Wavelength
1310nm
Max Cable Distance
40km
Connector
Duplex LC
Media
SMF
Transmitter Type
DFB
Receiver Type
PIN
Receiver Sensitivity
< -17.5dBm
Receiver Overload
-1dBm
TX Power
-2 to +4dBm
RX Power
-20 to -1dBm
Operating Temperature Range
-40 to 85°C
Protocols
MSA Compliant
Key Features of LINK-PP LS-SM314G-40I 4G SFP
Designed for reliable long-distance transmission, the LINK-PP LS-SM314G-40I SFP transceiver delivers 4.25Gbps performance with a reach of up to 40km. Featuring built-in Digital Optical Monitoring (DOM) and a duplex LC interface, it ensures secure, efficient connectivity, making it ideal for industrial and mission-critical network environments.
LINK-PP LS-SM314G-40I 4G SFP Optical Module
Using a DFB 1310nm laser transmitter and a PIN photodiode receiver, the LINK-PP LS-SM314G-40I 4G SFP delivers accurate signal transmission, strong optical performance, and excellent thermal stability.
LS-SM314G-40I: Reliable 4.25Gbps Connectivity for Long-Distance Fibre Networks
By offering reliable 4.25Gbps connectivity over long distances, the LINK-PP LS-SM314G-40I module minimizes repeater requirements and lowers infrastructure complexity, thereby ensuring reliable bandwidth for campus networks, data centers, and Fibre Channel SAN environments.
LS-SM314G-40I Module with 1310nm Wavelength
This LINK-PP LS-SM314G-40I module operates at the widely used 1310nm wavelength. It helps reduce attenuation on single-mode fiber, supporting dependable long-distance transmission and stable network operation.
LS-SM314G-40I Module Supporting 40km Transmission
Designed for reach up to 40km over SMF, the LINK-PP LS-SM314G-40I 4G SFP module offers long-distance communication without compromising speed or signal integrity, making it suitable for MANs, campus backbones, and wide-area connectivity.
LS-SM314G-40I Module with Duplex LC Interface
Featuring a duplex LC interface with separate transmit/receive paths for simplified cabling and stable optical performance, the LINK-PP LS-SM314G-40I module is compatible with common SMF infrastructure.
LS-SM314G-40I Module with DOM for Real-Time Monitoring
The LINK-PP LS-SM314G-40I module's built-in DOM enables real-time monitoring of temperature, voltage, and optical power, improving network management, maintenance, and troubleshooting efficiency.
LINK-PP LS-SM314G-40I 4G SFP Certification
The LINK-PP module is built using ISO 9001 management standards and complies with CE, RoHS, and FCC requirements, supporting dependable product quality and widespread deployment confidence.
Every unit undergoes a thorough quality inspection process to ensure consistent performance and dependable operation across different deployment environments.
LS-SM314G-40I Quality Certifications
The LINK-PP module, which is supported by known global quality standards, is designed to provide the durability, reliability, and confidence required by modern networks.
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-SM314G-40I Certified for Reliable Host-Device Compatibility
Certified compatibility with LINK-PP-compatible platforms contributes to easy installation, reliable transmission, and smooth network integration.
Rigorous Testing Ensures Reliable SFP Performance
Each module is verified to ensure dependable connectivity and high-fidelity signal transmission in real-world scenarios. Additional testing assistance is provided by the LINK-PP Test Support Center.
Optical Spectrum Test
Verifies wavelength constancy and assists in confirming optical compliance standards.
Eye Pattern Test
Assesses signal waveform quality to decrease distortion and increase transmission clarity.
Bit Error Rate Test
Accurate error performance checks ensure transmission reliability.
Temperature Test
Evaluates operating stability in various ambient temperatures.
Product Shipping for LINK-PP LS-SM314G-40I 4G SFP
Each LINK-PP module is delivered fit for immediate use, sustained by a professional logistics framework that prioritizes product safety and operational efficiency in worldwide shipping.
Anti-Static Protective Packaging
Specially designed packaging prevents exposure to electrostatic discharge during shipping.
Shock-Resistant Transport Protection
Additional protective wrapping shields modules from pressure and impact during transit.
Fast Order Processing and Dispatch
Streamlined order handling enhances processing speed and shortens delivery timelines.
Global Logistics and International Delivery
Reliable logistics networks support accurate, timely delivery across international markets.
LINK-PP LS-SM314G-40I 4G SFP Usage Demonstration
The LINK-PP LS-SM314G-40I SFP module delivers 4.25Gbps transmission over distances up to 40km. It is a practical solution for long-reach Fibre Channel and industrial network applications such as 4Gbps-class optical systems, 1x/2x/4x Fibre Channel SANs, and campus networks.
LS-SM314G-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-SM314G-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. The LS-SM314G-40I adheres strictly to the SFP Multi-Source Agreement (MSA), SFF-8472 diagnostic standards, and 4G Fibre Channel / CPRI protocols. LINK-PP provides customized EEPROM coding compatible with major OEM brands including Cisco, Brocade, Juniper, Alcatel-Lucent, Huawei, and Mikrotik. Digital Diagnostic Monitoring (DDM / DOM) is fully functional, reporting real-time optical power, supply voltage, laser bias current, and operating temperature to your switch CLI or network management system. By
admin on
2025-09-09
A:
The LS-SM314G-40I is engineered specifically for harsh environments with an extended industrial operating temperature range from -40°C to +85°C (-40°F to 185°F), whereas commercial grade modules are rated for 0°C to 70°C. It utilizes industrial-grade DFB 1310nm lasers and ruggedized optical components designed to withstand extreme thermal cycling, humidity, and vibration in outdoor cabinets, utility substations, and wireless base station CPRI deployments. By
admin on
2025-03-26
A:
Yes, you can deploy the LS-SM314G-40I on shorter SMF links, but you should monitor real-time light levels using the built-in DOM feature. The optical receiver sensitivity threshold is -20dBm with a maximum overload limit around 0dBm, while the 1310nm DFB laser transmitter outputs between -5dBm and 0dBm. For fiber spans shorter than 5km, we recommend checking switch CLI DDM readings; if RX optical power approaches 0dBm, adding a 3dB to 5dB LC inline optical attenuator will protect the receiver photodiode long term. By
admin on
2024-11-27
Needed 4G Fibre Channel transceivers with 1310nm wavelength for base station CPRI links. LINK-PP modules reported DDM stats instantly on Brocade and Cisco switches :-D
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478312
434741
N***s
Belgium
Verified
Purchase
5 .0
2026-05-19
Ordered 15 units for industrial Ethernet switch upgrades. MSA compliant spec made compatibility effortless across mixed vendor hardware. Will order again! :-)
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478312
434753
C***e
Brazil
Verified
Purchase
5 .0
2026-05-19
Upgraded our wireless CPRI fronthaul links using these LINK-PP 4G 1310nm 40km optical modules. The duplex LC connectors click securely into place and DFB transmitter output measured +1.5dBm on site. Zero packet drop during a 72-hour stress test. Excellent alternative to costly OEM brands ;)
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478312
434752
B***z
Turkey
Verified
Purchase
5 .0
2026-04-14
Deployed these LS-SM314G-40I transceivers inside unheated outdoor cabinets. Operating temperature drops below freezing at night, but light level and optical link remain completely steady.
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478312
434746
L***s
Cambodia
Verified
Purchase
5 .0
2026-02-28
Strict MSA compliance makes this industrial 4G SFP optical transceiver module a lifesaver for our multi-vendor fiber network. We tested 1310nm LC duplex connections up to 38km SMF distance without signal loss. Optical RX sensitivity remained stable at -18dBm.
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478312
434755
K***z
Poland
Verified
Purchase
4 .0
2025-12-24
The LS-SM314G-40I industrial optics perform flawlessly at full 4G speed over our 30km fiber loop. Only deducting one star because the shipping box was slightly crushed on arrival, though the internal anti-static packaging protected the transceivers.
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478312
434742
M***s
Finland
Verified
Purchase
5 .0
2025-05-06
Tested compatibility on Brocade SAN switches and Alcatel-Lucent routers for 4G Fibre Channel replication. The LS-SM314G-40I modules were recognized immediately, reporting accurate laser temperature, voltage, and optical power via DOM. Datasheet specs are 100% accurate =D
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478312
434751
A***s
Lithuania
Verified
Purchase
5 .0
2024-10-10
We bought a batch of LS-SM314G-40I industrial SFP transceivers for a 32km single mode fiber link connecting rural monitoring substations. Receiver sensitivity stayed well within -20dBm spec, and DDM telemetry integrates seamlessly with our Zabbix NMS via SNMP. Outstanding stability under harsh weather conditions.
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478312
434743
C***s
Morocco
Verified
Purchase
5 .0
2024-08-15
Deployed 30 pieces in severe industrial environments ranging from -20℃ cold storage to +65℃ hot boiler plant cabinets. The DDM diagnostic feature is crucial for predictive maintenance, correctly reporting laser bias current and thermal metrics. Outstanding quality and prompt delivery.
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478312
434757
R***z
Mexico
Verified
Purchase
4 .0
2024-02-04
Optical specs are spot on and DOM readings match our handheld optical power meter perfectly. Great 1310nm 40km transceivers, but delivery to our UK site took 2 days longer than scheduled.
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