The LINK-PP LS-SM5501-A2I 155M SFP transceiver module operates at a 1550nm wavelength and delivers 155Mbps data transmission over single-mode fiber (SMF) for distances of up to 120km.
LINK-PP Part Number
LS-SM5501-A2I
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
-40 to 85°C
Protocols
GR-468, MSA Compliant
Key Features of LINK-PP LS-SM5501-A2I 155M SFP
The LINK-PP LS-SM5501-A2I delivers consistent 155Mbps performance over extended fiber links of up to 120km. Its integrated Digital Optical Monitoring (DOM) feature provides real-time visibility into module performance, and its duplex LC interface enables fast deployment and dependable connectivity. Designed for industrial-grade environments, it supports stable, long-distance optical communication.
LINK-PP LS-SM5501-A2I 155M SFP Optical Module
This LINK-PP LS-SM5501-A2I 155M SFP optical module provides stable signal output and accurate wavelength control thanks to its high-performance DFB laser transmitter and PIN photodetector. It is designed to sustain dependable transmission even under constant operation and changing environmental circumstances.
LS-SM5501-A2I: Reliable 155Mbps Connectivity
For long-distance fiber applications, the LINK-PP LS-SM5501-A2I module provides dependable 155Mbps connectivity, guaranteeing continuous data flow throughout wide-area network deployments.
LS-SM5501-A2I Module with 1550nm Wavelength
The LINK-PP LS-SM5501-A2I module operates at a wavelength of 1550nm to reduce optical loss and enhance signal integrity for long-distance communication.
The LINK-PP LS-SM5501-A2I transceiver module is engineered for ultra-long-haul optical links, delivering reliable data transmission over distances up to 120km. It is ideal for backbone and metro networks and ensures low loss over extended fiber runs.
LS-SM5501-A2I Module with Duplex LC Interface
The duplex LC interface provides a compact and efficient solution with separate transmit and receive channels. It simplifies installation, ensures secure fiber alignment, and maintains compatibility with a wide range of switches, routers, and media converters.
LS-SM5501-A2I Module with DOM for Real-Time Monitoring
By providing real-time insight into operating conditions, such as temperature, supply voltage, transmit power, and receive power, the LINK-PP LS-SM5501-A2I eases routine maintenance and troubleshooting.
LINK-PP LS-SM5501-A2I 155M SFP Certification
Each LINK-PP module is certified to ISO 9001 and has CE, RoHS, and FCC approvals, delivering trusted performance, safety, and sustainability worldwide.
LINK-PP conducts a complete quality screening, covering spectral precision, signal clarity, error rate, and temperature endurance to deliver modules built for consistency and dependability.
LS-SM5501-A2I Quality Certifications
Certified to ISO 9001 and recognized by CE, RoHS, and FCC, LINK-PP products stand for global quality assurance and user confidence.
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-A2I Certified for Reliable Host-Device Compatibility
Fully verified with LINK-PP switches and routers, guaranteeing smooth connectivity and optimal performance.
Rigorous Testing Ensures Reliable SFP Performance
LINK-PP applies strict validation procedures to ensure every unit meets real-world network requirements. For more details, visit the LINK-PP Test Support Center.
Optical Spectrum Test
Ensures wavelength integrity to optimize signal separation and performance.
Eye Pattern Test
Confirms clean signal transitions for accurate data delivery.
Bit Error Rate Test
Determines link reliability by analyzing bit error occurrence.
Temperature Test
Checks stability and performance in demanding temperature conditions.
Product Shipping for LINK-PP LS-SM5501-A2I 155M SFP
LINK-PP ensures every module is shipped in a ready-to-deploy condition through a streamlined system focused on product safety and efficient delivery.
Anti-Static Protective Packaging
Designed to shield components from electrostatic interference.
Shock-Resistant Transport Protection
Packaging materials cushion products against transport impact.
The LINK-PP LS-SM5501-A2I 155M SFP module is suitable for 155 Mbps optical systems, Fast Ethernet, SONET OC-3 networks, and other long-distance optical communication links requiring consistent data transmission.
LS-SM5501-A2I 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-A2I 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-A2I is specifically engineered for industrial environments with an operating temperature range of -40°C to +85°C (-40°F to +185°F). It features ruggedized components built for unconditioned outdoor enclosures, roadside cabinets, utility substations, and industrial automation networks. By
admin on
2026-02-03
A:
Yes, absolutely. The LS-SM5501-A2I is pre-coded with broad OEM compatibility for industrial networking equipment including Moxa, Siemens SCALANCE, RuggedCom, Hirschmann, Cisco IE series, and Huawei. It operates plug-and-play without generating third-party optic warnings or requiring custom CLI overrides. By
admin on
2025-11-28
A:
This module uses a 1550nm wavelength laser and standard Duplex LC connector designed for Single Mode Fiber (SMF, OS1/OS2). To reach up to 120km at 155Mbps Fast Ethernet / OC-3 speeds, ensure your total fiber link attenuation (including splices and connectors) stays within the module's optical power budget margin. Built-in DOM/DDM allows real-time optical power monitoring to verify link health. By
admin on
2024-03-10
Please write comments with more than three
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478317
426022
J***k
Ireland
Verified
Purchase
4 .0
2026-06-14
Works fine across our 105km dark fiber span between power substations. 1550nm laser output is steady and DOM power readings are accurate in Hirschmann CLI. Box was slightly squashed during transport, but optics were safe in ESD packaging.
Please write comments with more than three
character.
478317
426025
A***y
Belgium
Verified
Purchase
5 .0
2026-04-20
We purchased these 155M 1550nm 120km Duplex LC SMF transceivers for long-distance perimeter security camera backhaul along remote solar farms. The optics locked onto the signal instantly across 108km SMF. Low power consumption helps keep cabinet thermals low while maintaining high optical transmit power.
Please write comments with more than three
character.
478317
426018
J***z
Israel
Verified
Purchase
5 .0
2026-02-28
Great ultra long-haul transceiver for railway signaling telemetry. Transmit power at 1550nm provides strong optical budget margin over our 110km SMF link.
Please write comments with more than three
character.
478317
426016
L***r
Bangladesh
Verified
Purchase
5 .0
2026-02-20
Ordered a batch for utility substation networking. Industrial temp rating -40°C to 85°C handles harsh outdoor cabinet heat without signal degradation. Very impressed with Link-PP quality. :-)
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character.
478317
426011
L***n
Brunei Darussalam
Verified
Purchase
5 .0
2025-08-23
Needed Fast Ethernet optics for long range wind farm monitoring. Duplex LC SMF interface connected easily to our patch panel. Excellent value for money. =D
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478317
426008
B***r
Morocco
Verified
Purchase
5 .0
2025-07-28
Replaced expensive OEM transceivers with this 155Mbps 120km SFP module on Siemens SCALANCE switches. EEPROM recognized without warnings. DOM monitoring reports steady voltage and laser bias. :D
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478317
426012
M***t
Philippines
Verified
Purchase
4 .0
2025-06-02
Solid 155M 120km industrial SFP module for remote SCADA links. Operating reliably in our outdoor cabinet at -25°C. Arrived two days later than expected due to carrier delays, but product quality is top tier. =)
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character.
478317
426021
N***g
Finland
Verified
Purchase
5 .0
2025-05-06
Deployed these Fast Ethernet 120km industrial SFP modules on our dark fiber backbone for traffic management sensors. Broad OEM compatibility made integration painless across mixed Cisco and Hirschmann switches. Duplex LC connectors fit firmly into high-density patch fields, and DOM telemetry gives real-time optical power visibility. :-)
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478317
426028
A***n
South Africa
Verified
Purchase
5 .0
2025-03-06
Excellent performance for municipal water telemetry network expansion. The industrial grade rating from -40°C to +85°C was essential for our outdoor pole-mounted switch cabinets. The 1550nm DFB laser output provides plenty of system gain to overcome optical patch panel insertion losses over a 100km link span. =)
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478317
426024
J***s
Indonesia
Verified
Purchase
5 .0
2024-12-23
Seamless compatibility with Cisco IE3000 switches. Plugged in, link came up in seconds. DDM optics module telemetry integrates directly into our SNMP platform.
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478317
426020
E***s
United Kingdom
Verified
Purchase
5 .0
2024-07-22
Tested across 100km dark fiber line. Receiver sensitivity is fantastic and zero frame drops observed during 48-hour continuous ping tests. Highly recommend for industrial networks. ;)
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478317
426019
B***n
Malaysia
Verified
Purchase
5 .0
2024-06-02
Flawless drop-in replacement for costly tier-1 legacy SONET/SDH and Fast Ethernet SFP modules. We conducted 72-hour bit error rate testing across a 120km fiber spool in our lab. Zero packet loss, steady laser bias current, and crystal-clear DOM telemetry reported directly to our network management software. Very satisfied with Link-PP optics.
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478317
426009
P***n
Hungary
Verified
Purchase
5 .0
2024-03-26
Installed this 155M SFP 1550nm 120km optic into a Moxa industrial switch. Link established immediately over 95km single mode fiber. DDM telemetry displays precise optical power levels.
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478317
426007
J***z
Maldives
Verified
Purchase
5 .0
2024-03-18
Hardened industrial transceiver that delivers true wide-temperature reliability. Tested inside unconditioned NEMA roadside enclosures through severe weather swings. Operating temperature DOM metrics stayed stable while carrying SCADA control traffic at 155Mbps line rate. Complete compatibility with RuggedCom and Cisco IE series switches without console warnings. :-D
Please write comments with more than three
character.
478317
426013
C***s
Austria
Verified
Purchase
5 .0
2024-02-25
Outstanding ultra long-haul optic for critical utility automation. We deployed a pair of these LS-SM5501-A2I modules to bridge two electrical substations 112km apart over OS2 single mode fiber. Transmit optical budget is exceptional with clean 1550nm signal attenuation delta. DOM diagnostics match our optical time-domain reflectometer (OTDR) trace readings within 0.1dBm.
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