The LINK-PP LS-BL55491G-A0I is an advanced high-performance 1.25Gbps 1G BiDi SFP transceiver perfectly engineered for harsh environments. It precisely features a 1550nm-TX/1490nm-RX wavelength over single-mode fiber, effectively achieving distances up to 100km. This industrial-grade optical module ensures highly reliable gigabit ethernet connections with its simplex LC interface and real-time digital diagnostic monitoring.
LINK-PP Part Number
LS-BL55491G-A0I
Vendor Name
LINK-PP
Form Factor
SFP
Max Data Rate
1.25Gbps
Wavelength
1550nm-TX/1490nm-RX
Max Cable Distance
100km
Connector
Simplex LC
Media
SMF
Transmitter Type
DFB
Receiver Type
PIN
TX Power
0 to +5dBm
RX Power
-28 to -1dBm
Receiver Sensitivity
<-28dBm
DOM Support
Yes
Operating Temperature Range
-40 to 85°C
Protocols
Fast Ethernet, Gigabit Fibre Channel, MSA Compliant
Key Features of LINK-PP LS-BL55491G-A0I 1G BiDi SFP
Discover the exceptional capabilities of the LINK-PP LS-BL55491G-A0I transceiver. This industrial 1G BiDi SFP provides unparalleled network reliability, integrating top-tier DFB lasers and Super-TIA components. It perfectly supports hot-pluggable deployment, digital diagnostics, and long-range gigabit data transmission for modern enterprise architectures.
Our LINK-PP LS-BL55491G-A0I 1G BiDi SFP optical module delivers exceptional data rate performance up to 1.25Gbps. Designed following SFP MSA standards, this compact transceiver offers seamless hot-swappable installation, ensuring continuous optical network upgrades without costly system downtime.
LS-BL55491G-A0I: 1G Connectivity for Industrial Automation
Operating flawlessly in extreme temperatures from -40°C to +85°C, the LS-BL55491G-A0I industrial SFP ensures robust 1G connectivity. It is the ideal optical networking solution for outdoor base stations, ruggedized factory automation, and demanding industrial ethernet environments.
LS-BL55491G-A0I Module with 1550nm-TX and 1490nm-RX Wavelength
Utilizing advanced WDM technology, the LS-BL55491G-A0I module effectively transmits at a 1550nm wavelength while receiving at 1490nm. This premium BiDi transceiver integrates a high-quality DFB laser to guarantee exceptional signal clarity across your entire fiber optic infrastructure.
Engineered for long-haul telecommunications, the LS-BL55491G-A0I module easily achieves up to 100km transmission distances over single-mode fiber. Combined with a highly sensitive PIN photodiode, this module effortlessly overcomes massive signal attenuation in extended metropolitan area networks.
LS-BL55491G-A0I Module with Simplex LC Interface
Designed to optimize infrastructure costs, the LS-BL55491G-A0I module features a single simplex LC interface. This smart unidirectional fiber approach significantly reduces your cabling requirements, saving exactly half of the valuable single-mode fiber resources within tight telecommunication environments.
LS-BL55491G-A0I Module with DOM for Real-Time Monitoring
Compliant with the SFF-8472 protocol, the LS-BL55491G-A0I module boasts integrated DOM capabilities. Administrators can conduct real-time digital diagnostic monitoring, easily checking internal temperature, voltage, and optical power to ensure optimal SFP performance and prevent unexpected network failures.
LINK-PP LS-BL55491G-A0I 1G SFP Certification
The LINK-PP LS-BL55491G-A0I 1G SFP is manufactured under strict compliance with global quality and safety standards, ensuring complete trustworthiness and unmatched long-term stability for every telecommunication deployment.
Every single LS-BL55491G-A0I module undergoes an exhaustive quality testing program before shipment, actively preventing potential failures and thoroughly validating its overall durability for intensive industrial applications.
LS-BL55491G-A0I Quality Certifications
Backed by major global safety authorities, the LS-BL55491G-A0I proudly holds comprehensive CE, FCC, UKCA, UL, REACH, and RoHS quality certifications, strictly guaranteeing safe, eco-friendly optical module operations globally.
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-BL55491G-A0I Certified for Reliable Host-Device Compatibility
The LS-BL55491G-A0I is completely SFP MSA compliant and perfectly certified for reliable host-device compatibility, flawlessly connecting with major industrial routers, ethernet switches, and advanced fiber channel network equipment.
Rigorous Testing Ensures Reliable SFP Performance
Comprehensive in-house evaluations and rigorous testing ensures reliable SFP performance, guaranteeing every module perfectly matches strict gigabit network requirements and peak optical standards.
Optical Spectrum Test
This crucial procedure accurately verifies the 1550nm center wavelength to ensure flawless transmission.
Eye Pattern Test
We carefully analyze the optical signal integrity to guarantee industry-standard 1.25Gbps signal quality.
Bit Error Rate Test
Continuous data transmission testing actively confirms zero packet loss across long 100km fiber distances.
Temperature Test
Modules undergo extreme environmental cycles to validate the -40°C to +85°C industrial operating temperature.
Product Shipping for LINK-PP LS-BL55491G-A0I 1G SFP
We carefully optimize the product shipping for LINK-PP LS-BL55491G-A0I 1G SFP modules to guarantee your networking equipment always arrives securely and precisely on time.
Installing this transceiver is incredibly straightforward thanks to its standard plug-and-play design. Simply insert the LINK-PP LS-BL55491G-A0I 1G SFP into your industrial switch, securely connect your single-mode fiber, and immediately experience stable, long-distance gigabit networking performance.
LS-BL55491G-A0I 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-BL55491G-A0I 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 is fully compliant with Fast Ethernet, Gigabit Ethernet, and Gigabit Fibre Channel protocols, as well as the strict SFF-8472 standard for digital diagnostics. It securely meets all major industry networking benchmarks and compliance standards. By
admin on
2026-05-13
A:
Definitely! This is a true industrial-grade module built with a premium DFB laser. It is strictly rated for wide operating temperatures from -40°C all the way up to 85°C, ensuring zero link drops even in severe outdoor conditions. By
admin on
2025-10-29
A:
Absolutely! This module is fully MSA compliant and extensively tested for OEM compatibility across major switch brands, ensuring plug-and-play interoperability without triggering "unsupported transceiver" errors. By
admin on
2025-10-23
A:
This specific module is optimized exclusively for Single-Mode Fiber (SMF) via a Simplex LC interface to achieve that massive 100km distance safely. It will not function correctly over legacy multimode fiber. By
admin on
2025-10-20
Rigorously tested this 1550nm-TX/1490nm-RX industrial transceiver across our multi-brand switches. The DOM feedback is ultra-precise, and it easily pushed a stable 1.25Gbps over an 85km SMF run. Outstanding enterprise value.
Please write comments with more than three
character.
481819
378101
P***s
Mexico
Verified
Purchase
5 .0
2025-09-09
Used these for our remote campus fiber networking project. The 100km max distance is incredibly accurate, and real-time DOM ensures our IT ops catch signal degradation instantly. Excellent networking ROI.
Please write comments with more than three
character.
481819
378102
C***n
Brazil
Verified
Purchase
5 .0
2025-01-24
We run several ruggedized outdoor cabinets in Alaska. Finding an industrial optical transceiver that genuinely tolerates -40°C while maintaining stable 1G BiDi SFP 100km performance was tough until we found this.
Please write comments with more than three
character.
481819
378111
E***z
Czech Republic
Verified
Purchase
5 .0
2024-11-17
We utilized this Simplex LC DOM module for a massive DC bulk deployment. Replacing dual-fiber with this BiDi setup halved our fiber usage. Perfect DFB laser stability and zero OEM compatibility hiccups.
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