The LINK-PP LS-SM5501-A2C 155M SFP transceiver is built for long-distance transmission, operating at 1550nm to deliver consistent 155 Mbps performance over single-mode fiber (SMF) up to 120km.
LINK-PP Part Number
LS-SM5501-A2C
Vendor Name
LINK-PP
Form Factor
SFP
Max Data Rate
155Mbps
Wavelength
1550nm
Max Cable Distance
120km
Connector
Duplex LC
Media
SMF
Transmitter Type
DFB
Receiver Type
PIN
DOM Support
Yes
Receiver Sensitivity
< -34dBm
TX Power
-2 to +3dBm
RX Power
-34 to -6dBm
Operating Temperature Range
0 to 70°C
Protocols
GR-468, MSA Compliant
Key Features of LINK-PP LS-SM5501-A2C 155M SFP
Designed for long-haul performance, the LINK-PP LS-SM5501-A2C provides reliable 155 Mbps throughput over distances of up to 120 km. It’s a practical solution for networks requiring both reach and reliability. Its Digital Optical Monitoring (DOM) design enables real-time performance tracking, while the duplex LC interface ensures quick installation and stable connectivity.
LINK-PP LS-SM5501-A2C 155M SFP Optical Module
The LINK-PP LS-SM5501-A2C 155M SFP optical module combines a high-quality DFB laser transmitter with a sensitive PIN photodetector to deliver precise wavelength control and stable signal output. It maintains consistent performance even under continuous operation or varying environmental conditions.
LS-SM5501-A2C: Reliable 155Mbps Connectivity
Whether deployed in metro or backbone networks, this LINK-PP LS-SM5501-A2C module provides steady 155 Mbps connectivity for smooth data transmission over long distances.
LS-SM5501-A2C Module with 1550nm Wavelength
The LINK-PP LS-SM5501-A2C 155M SFP module, with a wavelength of 1550nm, reduces optical attenuation and improves signal integrity, making it ideal for long-distance fiber communication.
The LINK-PP LS-SM5501-A2C 155M SFP module is designed for ultra-long-haul applications, with transmission distances of up to 120 km, making it an excellent choice for telecom infrastructure, intercity links, and remote site connectivity.
LS-SM5501-A2C Module with Duplex LC Interface
The dual LC interface of the LINK-PP LS-SM5501-A2C module offers separate transmit and receive channels in a compact form factor. It makes installation easier, guarantees precise fiber alignment, and ensures broad compatibility with switches, routers, and media converters.
LS-SM5501-A2C Module with DOM for Real-Time Monitoring
The built-in DOM functionality allows you to monitor temperature, voltage, transmit power, and receive power in real time. This visibility helps to reduce downtime while also facilitating maintenance and diagnostics.
LINK-PP LS-SM5501-A2C 155M SFP Certification
Each LINK-PP module meets ISO 9001 quality requirements and features CE, RoHS, and FCC certifications for universal safety and environmental excellence.
Each unit passes stringent optical performance and environmental stress tests before leaving the facility.
LS-SM5501-A2C Quality Certifications
ISO 9001 certified and CE, RoHS, FCC compliant for long-term excellence.
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-SM5501-A2C Certified for Reliable Host-Device Compatibility
Individually tested on supported LINK-PP systems for seamless plug-and-play integration and long-term stability.
Rigorous Testing Ensures Reliable SFP Performance
LINK-PP's exhaustive validation process guarantees high uptime and consistent performance. Visit the LINK-PP Test Support Center to learn more.
Optical Spectrum Test
Assesses optical spectrum distribution to ensure interference-free operation.
Eye Pattern Test
Tests signal quality to ensure optimal performance of links.
Bit Error Rate Test
Ensures high data accuracy by minimizing transmission errors.
Temperature Test
Ensures consistent behavior across varying thermal scenarios.
Product Shipping for LINK-PP LS-SM5501-A2C 155M SFP
LINK-PP modules are delivered safely and on time from the factory to the site via our global freight network.
Anti-Static Protective Packaging
Prevents static buildup to maintain product reliability.
Shock-Resistant Transport Protection
Minimizes risk during shipping with impact-resistant packaging.
Fast Order Processing and Dispatch
Fast handling ensures minimal delay before shipment.
Global Logistics and International Delivery
Reliable logistics enable smooth international delivery.
For 155 Mbps optical systems, Fast Ethernet, SONET OC-3 networks, and other long-distance communication scenarios that require steady and continuous data transmission, the LINK-PP LS-SM5501-A2C 155M SFP module is an ideal solution.
LS-SM5501-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-SM5501-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. The LS-SM5501-A2C uses the standard SFP form factor and is designed for 155 Mbps optical connectivity. It supports SFP MSA and SFF-8472, making it suitable for compatible network equipment that supports this optical specification. By
admin on
2026-03-04
A:
Yes. The module supports Real Time Digital Diagnostic Monitoring, and the product specification lists DOM support. It is also compliant with SFP MSA and SFF-8472 digital diagnostic functions. By
admin on
2025-11-09
A:
Yes. The LS-SM5501-A2C is specified for up to 120km over SMF at 155 Mbps. It uses a 1550nm DFB laser transmitter and PIN photodiode receiver, with receiver sensitivity specified at -34dBm. By
admin on
2025-07-10
A:
It is designed for single-mode fiber (SMF) and uses a Duplex LC interface. For a 120km deployment, the complete optical link should be engineered according to the actual fiber loss, connectors, splices, and available optical power budget. By
admin on
2024-03-13
The 1550nm DFB laser and PIN receiver combination is a solid match for our long-distance optical application. We checked DOM readings during installation and found the module easy to monitor and troubleshoot.
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character.
478316
426004
B***r
Lithuania
Verified
Purchase
5 .0
2026-03-18
Nice replacement option for older 155 Mbps equipment. We tested the modules across several compatible network platforms and the link came up cleanly. The Duplex LC connector and DOM support also made troubleshooting much easier.
Please write comments with more than three
character.
478316
425993
S***s
Netherlands
Verified
Purchase
5 .0
2026-02-09
Used the LS-SM5501-A2C for a 120km single-mode fiber connection between two network sites. The 1550nm DFB transmitter gave us the reach we needed, while DOM made it easier to monitor optical levels during commissioning.
Please write comments with more than three
character.
478316
425991
A***s
Singapore
Verified
Purchase
5 .0
2026-01-11
These worked well for our telecom access project. We needed a 155 Mbps optical transceiver with long SMF reach, and this module provided the 120km distance we were looking for without changing the existing fiber architecture.
Please write comments with more than three
character.
478316
425992
R***k
Denmark
Verified
Purchase
5 .0
2025-11-22
Reliable 155 Mbps optics for our legacy network. The modules passed our compatibility checks and worked well with the equipment listed in our deployment plan. DOM was especially helpful during acceptance testing.
Please write comments with more than three
character.
478316
425999
J***n
Poland
Verified
Purchase
5 .0
2025-10-12
We purchased a batch for remote network cabinets where the fiber runs are well beyond normal campus distances. The 1550nm wavelength and 120km SMF specification matched our design, and the modules have remained stable during continuous operation. :)
Please write comments with more than three
character.
478316
425994
R***s
Morocco
Verified
Purchase
5 .0
2025-10-05
For our remote access network, we needed 120km reach rather than another short-distance SFP. The LS-SM5501-A2C gave us the required 1550nm optical interface and worked smoothly during our multi-vendor compatibility testing.
Please write comments with more than three
character.
478316
426003
B***r
Malaysia
Verified
Purchase
5 .0
2025-06-18
Installed these in several outdoor network cabinets connected by long single-mode fiber. The standard 0 to 70°C operating range fits our indoor equipment locations, and the 155 Mbps link has been stable after deployment.
Please write comments with more than three
character.
478316
425987
L***y
Hong Kong
Verified
Purchase
5 .0
2024-12-02
We needed a cost-effective 1550nm SFP for a long fiber route between two facilities. This one fit the bill nicely. The Duplex LC interface was compatible with our existing cabling, and optical levels were easy to monitor through DOM.
Please write comments with more than three
character.
478316
426001
A***s
Canada
Verified
Purchase
4 .0
2024-10-15
The modules arrived with slightly more packaging than expected and delivery took a little longer than planned. Once installed, though, the 155 Mbps links performed well and the 120km SMF specification matched our requirements.
Please write comments with more than three
character.
478316
425989
A***t
Indonesia
Verified
Purchase
5 .0
2024-06-03
Excellent for our long-haul fiber project. The 120km reach gave us enough margin for the site-to-site connection, and the SFP MSA/SFF-8472 support made integration and DOM monitoring straightforward.
Please write comments with more than three
character.
478316
426006
E***g
Sweden
Verified
Purchase
5 .0
2024-05-14
We used these in a multi-site fiber rollout connecting remote cabinets back to the main facility. The 1550nm/120km specification was the main reason we selected them, and performance has been consistent so far. :-D
Please write comments with more than three
character.
478316
425997
A***n
Brunei Darussalam
Verified
Purchase
5 .0
2024-04-15
Easy to deploy in the rack. The SFP form factor is hot-pluggable, and DOM gives our team useful visibility into optical performance. We used Duplex LC SMF patching and had the link operational quickly.
Please write comments with more than three
character.
478316
425996
S***s
Bulgaria
Verified
Purchase
5 .0
2024-03-02
Good fit for long-haul legacy Ethernet and optical systems. The 155 Mbps rate is exactly what we needed, and the receiver sensitivity below -34dBm gives useful margin on our long fiber route.
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