The LINK-PP LS-BL55492G-A2C is a high-performance 2.5G BiDi SFP transceiver engineered for long-reach single-mode optical links. Operating on a single +3.3V power supply, this hot-pluggable module integrates a 1550nm DFB laser transmitter, an APD receiver, and a simplex LC optical interface, delivering robust 2.5Gbps data transmission up to 120km across single-mode fiber (SMF).
LINK-PP Part Number
LS-BL55492G-A2C
Vendor Name
LINK-PP
Form Factor
SFP
Max Data Rate
2.5Gbps
Wavelength
1550nm-TX/1490nm-RX
Max Cable Distance
120km
Connector
Simplex LC
Media
SMF
Transmitter Type
DFB
Receiver Type
APD
TX Power
-2 to +4dBm
RX Power
-23 to -1dBm
Receiver Sensitivity
-27dBm
DDM/DOM
Supported
Operating Temperature Range
0 to 70°C
Protocols
Fast Ethernet, Gigabit Fibre Channel, MSA Compliant
Key Features of LINK-PP LS-BL55492G-A2C 2.5G BiDi SFP
Engineered for demanding optical networks, the LINK-PP LS-BL55492G-A2C 2.5G BiDi SFP module delivers exceptional ultra-long-distance performance. Key features include full compliance with SFP MSA and SFF-8472 standards, an energy-efficient design with low power consumption under single +3.3V supply, hot-pluggable connectivity, and seamless integration for carrier-grade applications.
The LINK-PP LS-BL55492G-A2C 2.5G BiDi SFP optical module is designed for bidirectional communication over a single strand of fiber, doubling network capacity while drastically reducing fiber cabling deployment costs for high-speed network infrastructures.
LS-BL55492G-A2C: 2.5G Connectivity for Data Center Interconnect
Providing dependable 2.5Gbps bandwidth, the LS-BL55492G-A2C transceiver ensures seamless long-haul connectivity for data center interconnects (DCI), SDH STM-16, SONET OC-48 systems, enterprise core routers, and high-performance optical server network interfaces.
LS-BL55492G-A2C Module with 1550nm-TX and 1490nm-RX Wavelength
Featuring WDM diplexer technology, the LS-BL55492G-A2C transmits at 1550nm using a narrow-linewidth DFB laser and receives at 1490nm via an APD detector, enabling dual-wavelength single-fiber multiplexing with minimal optical signal interference.
With high-power optical launch (+1 to +5 dBm) and superior APD receiver sensitivity (-27 dBm), the LS-BL55492G-A2C module reliably supports extended ultra-long-reach single-mode fiber (SMF) transmissions reaching up to 120 kilometers without intermediate amplification.
LS-BL55492G-A2C Module with Simplex LC Interface
The LS-BL55492G-A2C is equipped with a standard simplex LC optical connector, offering a compact footprint, reliable mechanical latching, low insertion loss, and simplified single-fiber patching in high-density telecommunication and enterprise network environments.
LS-BL55492G-A2C Module with DOM for Real-Time Monitoring
Compliant with SFF-8472, the LS-BL55492G-A2C features integrated Digital Optical Monitoring (DOM) via I2C interface, allowing network administrators to monitor operating temperature, supply voltage, laser bias current, and transmitted/received optical power in real time.
LINK-PP LS-BL55492G-A2C 2.5G SFP Certification
The LINK-PP LS-BL55492G-A2C 2.5G SFP transceiver complies with international regulatory and industry standards, guaranteeing optical safety, superior environmental compliance, and high reliability across diverse commercial telecommunications networks.
Each LS-BL55492G-A2C undergoes rigorous automated testing protocols, covering comprehensive optical, electrical, and functional validations to ensure faultless data transmission and maximum field operational stability across deployments.
LS-BL55492G-A2C Quality Certifications
Fully certified with CE, FCC, UKCA, UL, and REACH directives, the LS-BL55492G-A2C meets strict global safety, electromagnetic compatibility, and hazardous substance management guidelines for international deployments.
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-BL55492G-A2C Certified for Reliable Host-Device Compatibility
Conforming to the SFP MSA agreement, the LS-BL55492G-A2C module ensures universal plug-and-play compatibility and seamless interoperability across major commercial switches, routers, and optical transport host devices.
Rigorous Testing Ensures Reliable SFP Performance
LINK-PP subjects every optical transceiver to rigorous multi-stage laboratory testing to verify exceptional optical integrity, stability, and enduring performance in real-world network environments.
Optical Spectrum Test
Evaluates center wavelength, spectral width, and side-mode suppression ratio to ensure optimal spectral purity.
Eye Pattern Test
Validates transmitter eye diagram mask margins, optical waveform rise/fall times, and low signal jitter.
Bit Error Rate Test
Confirms flawless signal sensitivity with BER below 1×10⁻¹² under full 2.5Gbps line rates.
Temperature Test
Assures stable transmission performance and electrical characteristics across the entire 0°C to +70°C commercial range.
Product Shipping for LINK-PP LS-BL55492G-A2C 2.5G SFP
Each LINK-PP LS-BL55492G-A2C 2.5G SFP transceiver is professionally packed and promptly dispatched using secured international logistics networks to guarantee damage-free worldwide delivery.
Anti-Static Protective Packaging
Packed in individual ESD-safe clamshell blisters to shield against electrostatic discharge damage.
Shock-Resistant Transport Protection
Enclosed in sturdy outer cartons with foam cushioning to absorb transit vibrations.
Fast Order Processing and Dispatch
Efficient warehouse handling ensures prompt order processing and fast product dispatch worldwide.
Global Logistics and International Delivery
Shipped globally via leading express carriers with full online tracking and support.
The LINK-PP LS-BL55492G-A2C 2.5G SFP transceiver supports seamless hot-swapping into host SFP cages. Connect a single single-mode fiber with a simplex LC connector to pair with a matching 1490T/1550R BiDi module for immediate 120km optical connectivity.
LS-BL55492G-A2C 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-BL55492G-A2C 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, we do! While this specific commercial model operates perfectly in indoor racks at 0-70°C, we also manufacture extended-reach industrial variants rated for -40°C to 85°C. Just reach out to our technical support team to get the exact industrial SKU you need for extreme outdoor deployments. By
admin on
2026-07-14
A:
Yes, absolutely! The LS-BL55492G-A2C is 100% MSA compliant and extensively tested for multi-vendor interoperability. It works seamlessly as a direct drop-in replacement for Cisco, Juniper, and other major OEM brands without triggering any frustrating vendor lock-in warnings. By
admin on
2026-06-06
A:
Exactly! It utilizes a Simplex LC connector for bidirectional transmission over a single strand of Single-Mode Fiber (SMF). To complete your network link, you must pair this 1550nm-TX/1490nm-RX module with its exact counterpart (a 1490nm-TX/1550nm-RX 2.5G BiDi SFP) on the receiving end. By
admin on
2026-05-11
A:
Definitely. For a bulk deployment of 200 units, we offer highly competitive tiered B2B pricing. You can also apply our wholesale promo codes at checkout or contact our enterprise sales team directly for a customized quote to maximize your IT budget. By
admin on
2026-05-02
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495420
459845
D***r
Norway
Verified
Purchase
5 .0
2026-05-07
Bought a batch of 2.5Gbps DOM SFPs for ISP base station backhaul. Link stays up with zero packet loss over 90km. Truly reliable DFB laser performance! (⌐■_■)
Please write comments with more than three
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495420
459861
R***l
United Kingdom
Verified
Purchase
5 .0
2026-04-05
Using this Simplex LC SMF module for a massive SDH STM-16 telecom upgrade. The 0-70°C operating temperature is perfect for our indoor racks. Great cost-effective OEM alternative!
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495420
459843
K***l
Philippines
Verified
Purchase
5 .0
2026-01-04
Tested the 2.5G BiDi SFP 120km modules for data center interconnect links. APD receiver sensitivity holds at -27dBm over 110km SMF. Extremely stable single-fiber multiplexing solution.
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495420
459860
C***z
Peru
Verified
Purchase
5 .0
2025-12-02
Deployed these 1550nm-TX/1490nm-RX optics for our campus fiber backhaul. DDM monitoring via I2C is spot on. Verified MSA compatibility with our Cisco and Juniper edge switches seamlessly!
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