The Generic SFP-2GLR-55 Compatible LINK-PP SFP transceiver delivers stable and high-performance connectivity with data rates of up to 2.5Gbps over single-mode fiber (SMF) distances reaching 40km. Operating at a 1550nm wavelength, it is designed for long-distance transmission with minimal signal loss.
Generic Part Number
SFP-2GLR-55
Vendor Name
LINK-PP
Form Factor
SFP
Max Data Rate
2.5Gbps
Wavelength
1550nm
Max Cable Distance
40km
Connector
LC duplex
Media
SMF
Transmitter Type
DFB
Receiver Type
PIN
TX Power
-2 to +3dBm
RX Power
-20 to -1dBm
Receiver Sensitivity
<-20dBm
Receiver Overload
-1dBm
Operating Temperature Range
0 to 70°C
Protocols
MSA Compliant
Key Features of Generic SFP-2GLR-55 Compatible LINK-PP 2.5G SFP
The SFP-2GLR-55 module supports a data rate of 2.5 Gbps with consistent signal integrity over extended distances. Its built-in Digital Optical Monitoring (DOM) functionality achieves real-time diagnostics, and the universal duplex LC interface enables easy installation and secure fiber connections for reliable, long-distance communication.
Equipped with a DFB laser transmitter and a PIN photodiode receiver, this Generic SFP-2GLR-55 Compatible LINK-PP 2.5G SFP module offers excellent optical performance, precise signal transmission, and strong thermal stability.
SFP-2GLR-55: Reliable 2.5 Gbps Connectivity for Capacity Expansion
The Generic SFP-2GLR-55 Compatible LINK-PP module supports seamless bandwidth expansion across enterprise networks, telecom infrastructures, and data centers with its 2.5 Gbps throughput, ensuring scalable network growth while maintaining consistent uptime and performance.
SFP-2GLR-55 Module with 1550nm Wavelength
The precise wavelength of 1550nm minimizes fiber attenuation and ensures strong signal quality over long distances.
SFP-2GLR-55 Module Supporting 40km Transmission
Over single-mode fiber, this Generic SFP-2GLR-55 Compatible LINK-PP 2.5G SFP module transmits data for distances of up to 40 kilometers. It is great for metro aggregation, campus interconnection, enterprise backbone connections, and long-distance network extensions that require stability and reach.
SFP-2GLR-55 Module with Duplex LC Interface
The compact duplex LC connector includes separate transmit and receive channels, simplifying cable management while ensuring compatibility with standard SMF infrastructure and delivering clean, stable optical signals.
SFP-2GLR-55 Module with DOM for Real-Time Monitoring
The built-in DOM function of the Generic SFP-2GLR-55 Compatible LINK-PP module provides real-time tracking of key parameters like temperature, voltage, and optical power, simplifying network monitoring, maintenance, and troubleshooting.
Manufactured in compliance with ISO 9001, CE, RoHS, and FCC standards, each LINK-PP module meets global requirements for quality, safety, and environmental responsibility.
Before shipment, every module goes through rigorous validation to ensure superior performance.
SFP-2GLR-55 Quality Certifications
Fully verified in accordance with international quality standards to ensure consistent and dependable operation.
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.
SFP-2GLR-55 Certified for Reliable Host-Device Compatibility
Extensive compatibility testing guarantees that supported LINK-PP devices work seamlessly.
Rigorous Testing Ensures Reliable SFP Performance
With continuous quality control and durability checks, LINK-PP ensures every module delivers the trusted performance professionals rely on. For more information, visit the LINK-PP Test Support Center.
Optical Spectrum Test
Ensures accurate wavelength output for stable communication.
Eye Pattern Test
Verifies signal clarity and minimizes distortion.
Bit Error Rate Test
Monitors error performance to maintain consistent network quality.
Temperature Test
Confirms stable performance in harsh environmental conditions.
Product Shipping for Generic SFP-2GLR-55 Compatible LINK-PP 2.5G SFP
From careful packaging to international shipment, LINK-PP upholds excellence, ensuring every module arrives secure, intact, and on time.
Anti-Static Protective Packaging
Shields sensitive components from electrostatic discharge, from the factory to final installation.
Shock-Resistant Transport Protection
Protective cushioning that absorbs shocks and vibrations for worry-free transit.
Fast Order Processing and Dispatch
High-speed picking and packing mean your modules ship faster than the competition.
Global Logistics and International Delivery
Trusted partners ensure on-time, damage-free delivery across borders and continents.
The Generic SFP-2GLR-55 Compatible LINK-PP 2.5G SFP supports long-distance optical transmission of up to 2.5Gbps over distances of up to 40km. This makes it perfect for telecommunications and carrier backbone networks, enterprise inter-building connectivity, campus fiber expansion, metro Ethernet aggregation, and other networks requiring long-reach links.
SFP-2GLR-55 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 SFP-2GLR-55 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:
The standard LS-SM552G-40C model features a commercial operating case temperature range of 0°C to 70°C (32°F to 158°F), which is suitable for standard indoor server rooms and thermally managed outdoor enclosures. If your deployment requires harsh environment reliability—such as unheated pole cabinets or roadside base stations—we also offer the industrial grade version (part number LS-SM552G-40I) which supports an extended operating temperature range from -40°C to 85°C. By
admin on
2026-05-08
A:
Yes, you can use the LS-SM552G-40C module on shorter SMF link distances, but you should verify your optical light levels. The receiver overload threshold for this module is -1dBm and receiver sensitivity is -20dBm, while the DFB laser transmitter power ranges from -2 to +3dBm. If your fiber span is under 10km, we recommend checking DOM/DDM real-time optical power or adding a 5dB to 10dB LC optical attenuator to prevent potential RX overload and maintain long-term laser stability. By
admin on
2025-05-04
A:
Absolutely. The LS-SM552G-40C is fully compliant with the SFP Multi-Source Agreement (MSA) and SFF-8472 diagnostic standards. We offer custom EEPROM coding for seamless compatibility with major OEM brands including Cisco, Juniper, Mikrotik, Alcatel-Lucent, and generic switches. Digital Optical Monitoring (DOM / DDM) is fully functional, allowing your switch CLI or NMS system to read real-time TX/RX power, laser bias current, module voltage, and operating temperature. By
admin on
2024-07-01
Modules perform great for 2.5G SFP transceivers, but shipping box was slightly dented upon arrival. Luckily the anti-static protective bubble packaging kept the optics undamaged.
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479047
436649
C***s
Sweden
Verified
Purchase
5 .0
2026-03-07
Outstanding compatibility on Alcatel-Lucent and generic OEM switches. We needed 2.5G Fibre Channel optics supporting 1550nm over 40km SMF for SAN replication. LINK-PP LS-SM552G-40C locked sync in seconds and telemetry matches factory datasheet specs perfectly =D
Please write comments with more than three
character.
479047
436635
S***s
Hungary
Verified
Purchase
5 .0
2025-11-12
Replaced costly OEM modules with this LS-SM552G-40C on our 2.5G Fibre Channel storage network. Syncs up instantly without any link flaps or error frames.
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character.
479047
436642
S***s
Taiwan, Province of China
Verified
Purchase
5 .0
2025-05-12
Strict MSA compliance makes this 2.5G SFP module a lifesaver for multi-vendor network environments. We tested duplex LC single mode fiber connections up to 38km distance. Optical receiver sensitivity held steady at -18dBm without line attenuation issues.
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479047
436634
H***k
Singapore
Verified
Purchase
5 .0
2025-04-02
Used these for CPRI cellular backhaul testing in an outdoor cabinet enclosure. Operating case temperature handled daytime ambient heat without optical power drift. Full DDM readings for tx rx power and operating temperature were exposed properly via switch CLI. Great alternative to overpriced OEM modules ;)
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character.
479047
436650
M***l
Romania
Verified
Purchase
5 .0
2024-12-19
Tested on Cisco and Juniper switches for a long haul LC duplex link. DOM reading shows stable optical rx power near -12dBm across 32km. Excellent value :-D
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character.
479047
436648
C***r
United Kingdom
Verified
Purchase
5 .0
2024-11-23
Works great for outdoor cabinet fiber extension. Case temperature handles ambient outdoor variation well with stable TX laser output power and zero packet drop.
Please write comments with more than three
character.
479047
436643
J***s
Sweden
Verified
Purchase
5 .0
2024-11-17
Good thermal performance inside our indoor server cabinet. Operating temperature stays around 38℃ even under heavy 2.5G network throughput stress tests =)
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character.
479047
436637
J***s
Nepal
Verified
Purchase
4 .0
2024-11-17
Optical specs are accurate and DOM diagnostic values match our optical power meter readings. Only downside was delivery took 2 extra days to arrive at our IT facility in Germany.
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479047
436646
M***l
Ukraine
Verified
Purchase
5 .0
2024-10-17
Installed these 1550nm 40km LC duplex modules in our campus backbone core switches. Signal attenuation across 30km single mode fiber was under budget, and DDM diagnostics show stable operating temperatures between 32℃ and 41℃ under peak traffic. Perfect fit for budget-conscious enterprise deployments.
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character.
479047
436639
C***k
France
Verified
Purchase
5 .0
2024-09-07
We bought a batch of LS-SM552G-40C SFP transceivers for a 35km single mode fiber interconnect between two regional data centers. Insertion loss was minimal and receiver sensitivity was well within the -20dBm spec. Digital optical monitoring features integrate perfectly with our Zabbix monitoring setup. Highly recommended for enterprise network engineers.
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character.
479047
436647
E***n
United Kingdom
Verified
Purchase
5 .0
2024-04-23
Ideal 2.5G SFP transceivers for our home lab 2.5G NAS link and Mikrotik switch setup. DDM diagnostic telemetries display accurately in RouterOS without issues.
Please write comments with more than three
character.
479047
436640
O***s
Hong Kong
Verified
Purchase
5 .0
2024-03-02
Deployed six LS-SM552G-40C transceivers for enterprise building interconnects spanning 28km. Optical link budget was well within spec and light levels are stable at -6dBm.
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