The LINK-PP LS-BL31492G-20I is a high-performance industrial 2.5G BiDi SFP transceiver engineered for robust telecommunications. Operating over single-mode fiber with 1310nm-TX and 1490nm-RX wavelengths, this optical module ensures stable 20km data transmission. Featuring a simplex LC interface and digital diagnostic monitoring, it provides cost-effective connectivity for extreme temperature environments.
LINK-PP Part Number
LS-BL31492G-20I
Vendor Name
LINK-PP
Form Factor
SFP
Max Data Rate
2.5Gbps
Wavelength
1310nm-TX/1490nm-RX
Max Cable Distance
20km
Connector
Simplex LC
Media
SMF
Transmitter Type
DFB
Receiver Type
PIN
TX Power
-5 to 0dBm
RX Power
-23 to -1dBm
Receiver Sensitivity
<-18dBm
DOM Support
Yes
Operating Temperature Range
-40 to 85°C
Protocols
Fast Ethernet, Gigabit Fibre Channel, MSA Compliant
Key Features of LINK-PP LS-BL31492G-20I 2.5G BiDi SFP
This advanced 2.5Gbps hot-pluggable optical transceiver offers exceptional reliability for demanding network architectures. Key features include low 300mA power consumption, SDH STM-16 compatibility, and an extended industrial operating temperature range from -40°C to 85°C, ensuring continuous performance in harsh environmental conditions.
Utilizing advanced BiDi technology, this 2.5G optical module maximizes bandwidth efficiency by transmitting and receiving data simultaneously over a single fiber. It perfectly upgrades existing infrastructure while significantly reducing fiber cabling costs for enterprise networks.
LS-BL31492G-20I: 2.5G Connectivity for Industrial Automation Network
Designed specifically for industrial automation networks, this rugged transceiver guarantees secure 2.5G connectivity. Its robust thermal tolerance allows seamless integration into outdoor routers and factory floor equipment without compromising data integrity during extreme temperature fluctuations.
LS-BL31492G-20I Module with 1310nm-TX and 1490nm-RX Wavelength
Equipped with a high-quality 1310nm DFB laser transmitter and a sensitive 1490nm PIN photodiode receiver, this transceiver utilizes precise WDM technology. This optimal wavelength combination prevents signal interference and guarantees superior optical communication quality.
Delivering an impressive 20km transmission distance over standard single-mode fiber, this long-reach optical module is ideal for campus networks and metropolitan area connections, overcoming geographical barriers with minimal signal attenuation and excellent link stability.
LS-BL31492G-20I Module with Simplex LC Interface
Featuring a standard simplex LC interface, this compact optical module easily connects with standard fiber optic patch cords. The secure LC receptacle ensures precise optical alignment, low insertion loss, and effortless plug-and-play installation for technicians.
LS-BL31492G-20I Module with DOM for Real-Time Monitoring
Fully compliant with SFF-8472 standards, this smart transceiver includes built-in Digital Optical Monitoring. This DOM function enables network administrators to perform real-time tracking of critical parameters like temperature, voltage, laser bias current, and optical power.
LINK-PP LS-BL31492G-20I 2.5G SFP Certification
Meeting strict international standards, this 2.5G SFP module guarantees safe and eco-friendly operation. Complete regulatory compliance ensures smooth deployment across global telecommunications and industrial network infrastructure.
Our comprehensive factory testing program meticulously evaluates every individual transceiver before shipping. This stringent quality assurance process guarantees exceptional durability, consistent data transmission, and zero hardware defects.
LS-BL31492G-20I Quality Certification
This premium industrial optical module proudly holds CE, FCC, UKCA, UL, and REACH certifications, demonstrating our absolute commitment to electrical safety, environmental protection, and superior manufacturing quality.
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-BL31492G-20I Certified for Reliable Host-Device Compatibility
Strictly adhering to the SFP Multi-Source Agreement, this optical transceiver is certified for flawless OEM compatibility. It seamlessly integrates with major brand switches, routers, and host equipment.
Rigorous Testing Ensures Reliable SFP Performance
We conduct comprehensive validation procedures on every transceiver. Rigorous laboratory testing ensures reliable SFP performance across diverse network environments and extreme industrial conditions.
Optical Spectrum Test
Evaluates center wavelength stability and side-mode suppression ratio for precise optical signal accuracy.
Eye Pattern Test
Analyzes signal integrity and minimizes jitter to guarantee excellent transmitter output quality standards.
Bit Error Rate Test
Confirms flawless data transmission with exceptionally low error rates under maximum network loads.
Temperature Test
Verifies continuous operational stability through intense thermal cycling from -40°C to 85°C.
Product Shipping for LINK-PP LS-BL31492G-20I 2.5G SFP
We maintain a highly efficient supply chain network to guarantee the secure delivery of your optical modules in pristine condition and perfect working order.
Experiencing hassle-free networking is simple with this hot-swappable transceiver. Just insert the module directly into the corresponding SFP port of your compatible industrial switch or router, connect the simplex LC patch cord, and immediately establish high-speed connectivity.
LS-BL31492G-20I 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-BL31492G-20I 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, absolutely! The LS-BL31492G-20I is 100% MSA compliant. We’ve programmed them to work seamlessly across major brands like Cisco, Juniper, and Arista, ensuring smooth interoperability with zero CLI workarounds needed. By
admin on
2026-07-11
A:
You only need a single strand! It uses BiDi (Bidirectional) WDM technology with a Simplex LC connector, transmitting at 1310nm and receiving at 1490nm simultaneously over one single-mode fiber (SMF). This effectively doubles your existing fiber deployment capacity. By
admin on
2026-07-10
A:
It matches OEM performance exactly. Using premium DFB lasers and PIN receivers, it delivers the exact same 2.5Gbps speed, 20km range, and strict DOM monitoring as the original brands, but at a fraction of the cost. You get true enterprise-grade reliability without the heavy markup. By
admin on
2026-06-17
A:
We definitely do. For bulk orders like 500 units, we offer tiered volume discounts that significantly lower the unit price. Please reach out to our sales team directly, and we’ll get a customized, cost-effective quote over to you today! By
admin on
2026-02-27
A:
Definitely! This is the industrial-grade version (LS-BL31492G-20I), purpose-built with a wide operating temperature range of -40°C to 85°C (-40°F to 185°F). It is engineered specifically for harsh environments and will easily handle extreme heat in outdoor enclosures. By
admin on
2026-01-31
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481838
446930
C***s
Chile
Verified
Purchase
5 .0
2026-06-13
Deployed 50 industrial 2.5G BiDi SFPs in unconditioned outdoor cabinets. The -40 to 85°C temp rating is legit. DOM shows stable RX power during wild temperature swings. Recommended for rugged edge deployments!
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481838
446912
K***l
Russian Federation
Verified
Purchase
5 .0
2026-04-17
As a network engineer, saving fiber strands is huge. This 1310/1490nm simplex LC module doubled our fiber capacity between campus buildings. Link stability is solid at 18km, way below the 20km spec.
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character.
481838
446927
M***n
United States
Verified
Purchase
5 .0
2025-10-28
Tested the LINK-PP LS-BL31492G-20I against original brand optics in our lab. The receiver sensitivity (<-18dBm) is spot on. We are moving our entire factory floor automation network to these cost-effective 2.5Gbps industrial transceivers.
Please write comments with more than three
character.
481838
446929
R***n
Panama
Verified
Purchase
5 .0
2025-10-25
We use these for critical base station backhaul where SDH STM-16 protocol support is a must. The DFB laser output is extremely clean, and MSA compatibility meant zero CLI fuss on our switches.
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