LS-BL553101-20I functions as an industrial-grade 155M BiDi SFP optical transceiver module featuring built-in real-time digital diagnostic monitoring, engineered to sustain a 20km reach through 1550nm-TX/1310nm-RX wavelengths over a simplex LC interface across a wide -40 to +85°C operational spectrum.
LINK-PP Part Number
LS-BL553101-20I
Vendor Name
LINK-PP
Form Factor
SFP
Max Data Rate
155Mbps
Wavelength
1550nm-TX/1310nm-RX
Max Cable Distance
20km
Connector
Simplex LC
Media
SMF
Transmitter Type
FP
Receiver Type
PIN
TX Power
-14 to -8dBm
Receiver Sensitivity
-32dBm
RX Power
-32 to -6dBm
DOM Support
Yes
Operating Temperature Range
-40 to 85°C
Protocols
Fast Ethernet, Gigabit Fibre Channel, MSA Compliant
Key Features of LINK-PP LS-BL553101-20I 155M SFP
LINK-PP LS-BL553101-20I is an industrial-grade 155M SFP BiDi transceiver that combines robust physical design with advanced optical componentry. It delivers reliable single-fiber data transmission up to 20km under extreme temperatures ranging from -40 to +85°C. The module also integrates diagnostic functions to provide operators with constant visibility over link status.
LINK-PP LS-BL553101-20I 155M SFP Optical Module
This module is equipped with a reliable FP laser transmitter and a highly sensitive PIN photodiode receiver. Together, these optical components ensure optimal signal integrity and stable light path conversions over single-mode fiber. This internal hardware design allows the transceiver to maintain efficient power budgets across extended deployments.
LS-BL553101-20I: 155 Mbps Connectivity for Single-Fiber Remote Nodes
The module provides a stable 155Mbps data rate, which is ideal for Fast Ethernet and legacy telecom backhaul applications. It brings dependable connectivity to isolated remote nodes, industrial field devices, and smart utility grids. This specific bandwidth standard balances energy efficiency with consistent transmission speeds.
LS-BL553101-20I Module with 1550nm-TX/1310nm-RX Wavelength
This BiDi transceiver utilizes a 1550nm transmitting and 1310nm receiving wavelength combination to handle two-way traffic over a single fiber strand. By separating the upstream and downstream signals onto different channels, it eliminates optical interference and maximizes fiber efficiency. This design allows operators to double their network capacity without laying new cables.
Designed for long-reach industrial topologies, this module covers spans up to 20km without needing inline amplification. It maintains strong optical link budgets over long distances, making it perfect for connecting regional sub-stations or distant trackside equipment. The extended reach helps operators expand their network footprint cost-effectively.
LS-BL553101-20I Module with Simplex LC Interface
Equipped with a single-port simplex LC connector, this module cuts the physical fiber cabling requirements in half. This compact design simplifies fiber routing and cable management within high-density distribution frames. It allows operators to maximize patch panel space while maintaining stable, clip-in connections.
LS-BL553101-20I Module with DDM for Real-Time Monitoring
The built-in digital optical monitoring capability delivers instant diagnostic telemetry directly to the host switch. Network administrators can track critical parameters such as internal temperature, laser voltage, and receiver optical power. This proactive monitoring helps detect potential line faults before a complete link-down event occurs.
LINK-PP LS-BL553101-20I 155M SFP Certification
LINK-PP LS-BL553101-20I transceiver complies with global regulatory and safety standards, holding official certifications including ISO 9001, CE, RoHS, and FCC.
Every SFP module undergoes strict testing, including optical spectrum inspections, eye pattern analysis, and bit error rate validation, to ensure reliable performance.
LS-BL553101-20I Quality Certifications
These international approvals verify that the transceiver meets strict environmental safety, manufacturing quality, and electromagnetic interference requirements.
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-BL553101-20I Certified for Reliable Host-Device Compatibility
The module is comprehensively programmed and tested to ensure seamless firmware interoperability across a wide range of enterprise switches and industrial routers.
Rigorous Testing Ensures Reliable SFP Performance
We subject every SFP transceiver to a strict battery of diagnostics to guarantee flawless field deployment, so feel free to explore our full verification methods at the LINK-PP Test Support Center.
Optical Spectrum Test
Assess laser emission purity and wavelength stability.
Eye Pattern Test
Evaluate transmitter waveform clean-up and signal timing.
Bit Error Rate Test
Confirm flawless packet delivery over extended spans.
Temperature Test
Check thermal resilience under extreme environmental shifts.
Product Shipping for LINK-PP LS-BL553101-20I 155M SFP
We utilize a secure logistical pipeline to distribute order shipments safely. Every package follows strict export and transit management procedures.
Anti-Static Protective Packaging
Prevent electrostatic damage by wrapping items in specialized shielding bags.
Shock-Resistant Transport Protection
Absorb transit impacts using ruggedized external casing and structural reinforcement.
Fast Order Processing and Dispatch
Accelerate warehouse fulfillment cycles to optimize your project deployment timelines.
Global Logistics and International Delivery
Leverage dependable freight networks for seamless border-crossing transit security.
Just slide this LS-BL553101-20I 155Moptical module into an active SFP slot and connect your simplex LC fiber cable for instant setup. It provides stable 155 Mbps connections for remote nodes and industrial setups like smart grids, traffic control systems, and factory automation networks.
LS-BL553101-20I Technical Support
LINK-PP offers end-to-end technical support, from pre-sales consultation to post-deployment assistance, ensuring smooth integration and reliable network performance.
Pre-Sales Technical Consultation
Professional guidance to help you select the optimal LS-BL553101-20I module for your network design and application needs.
Compatibility Verification Support
Validated compatibility with LINK-PP switches and other mainstream networking platforms for seamless deployment.
Deployment & Installation Assistance
Comprehensive step-by-step guidance for installation, configuration, and initial setup, ensuring accurate deployment and reliable, stable operation from the start.
Long-Term Technical Assurance
Ongoing technical support throughout the product lifecycle, delivering long-term stability for enterprise and carrier-grade networks.
A:
Yes, a DDM compliant with the SFF-8472 standard will continuously monitor the laser bias current, enabling your SNMP software to proactively issue maintenance alerts. By
admin on
2026-02-23
A:
Yes, the module is fully hot-pluggable. It can be safely inserted or extracted from an active switch port cage without interrupting surrounding operations. By
admin on
2025-07-31
A:
No. Since optical fibers utilize light pulses instead of copper currents, this transceiver provides absolute immunity to EMI and RF noise. By
admin on
2025-04-08
Please write comments with more than three
character.
494039
348894
E***y
Indonesia
Verified
Purchase
5 .0
2026-04-27
Perfect compatibility with our legacy SONET gear. We needed optical transceivers that could withstand high operating temperatures in our top-of-rack passive cabinets. The 1550nm-TX/1310nm-RX wavelength pairing matches perfectly. Not a single CRC error in 2 months of runtime!
Please write comments with more than three
character.
494039
348902
S***r
Mexico
Verified
Purchase
5 .0
2026-03-26
Great industrial-grade BiDi SFP. We deployed these simplex LC modules across our water treatment plant's ring network. Running perfectly at 155Mbps on single-mode fiber. The DDM/DOM feature is super handy for monitoring signal levels over the 15km span. Perfect for harsh environment setups!
Please write comments with more than three
character.
494039
348899
I***p
United States
Verified
Purchase
5 .0
2026-03-18
We executed a field upgrade across 35 wayside control points using these 155M single-mode modules for automated track signaling networks. Because these unconditioned roadside cabinets endure intense heavy-machinery vibration and temperature swings, commercial optics always fail. These ruggedized wide-temperature modules proved exceptionally resilient, establishing immediate links upon installation into our switches. Clean optical loss budget and accurate DOM telemetry make this an outstanding choice for critical industrial deployments.
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character.
494039
348910
G***z
Hungary
Verified
Purchase
5 .0
2026-02-06
Upgraded our legacy 155M links in our hydro-electric plant. These BiDi modules are fully compatible with our older industrial switches. Optical Tx/Rx power levels are perfect through the 20km single-mode fiber span. Perfect manufacturing quality!
Please write comments with more than three
character.
494039
348896
K***e
Nepal
Verified
Purchase
4 .0
2026-01-04
We deploy these in harsh coastal surveillance camera networks. High humidity and temperature fluctuations don't affect these transceivers at all. The 20km range allows us to backhaul video feeds directly to the main terminal over single-strand fiber. Delivery took two days longer than expected, but the product is great!
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494039
348907
A***n
Finland
Verified
Purchase
5 .0
2025-12-31
Physical-layer optical reliability is non-negotiable for our remote substation SCADA rings. We deployed these industrial SFP BiDi modules across an 18km single-mode span, and they handle the extreme cabinet heat flawlessly. The simplex LC design successfully doubled our fiber capacity without the massive capital expenditure of laying new single-strand cables. Accurate DDM data integrates perfectly via SNMP, showing rock-solid Tx/Rx power levels with zero packet drop. Highly recommended!
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character.
494039
348909
T***t
Canada
Verified
Purchase
5 .0
2025-11-22
Building dependable network infrastructure in northern climates means preparing for deep sub-zero winters that destroy standard commercial optics. We utilize these industrial-rated SFPs in our rural broadband-over-fiber project to connect wireless backhaul nodes across long 20km single-mode spans. Outdoor enclosures routinely drop below -25°C, yet these modules maintain constant, stable Tx power levels and fantastic receiver sensitivity. The simplex LC single-fiber design completely cut our routing and cable installation costs in half. A true lifesaver!
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character.
494039
348911
G***s
Malaysia
Verified
Purchase
5 .0
2025-11-09
Fantastic cost saver for our rural broadband telemetry project! Using simplex LC fiber allowed us to double our fiber capacity without laying new cables. Spec sheet says 20km range, and we are getting solid, error-free transmission at 18.4km. Outstanding build quality.
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character.
494039
348895
O***n
France
Verified
Purchase
5 .0
2025-09-22
Excellent 155M BiDi optical transceivers for smart grid communication nodes. Standard simplex LC connectors make deployment quick, and the -40 to +85°C rating is a hard requirement for our outdoor poles.
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character.
494039
348898
H***s
Netherlands
Verified
Purchase
5 .0
2025-06-29
These BiDi SFP modules are incredibly resilient. Placed them in remote outback telemetry boxes where ambient temperatures exceed 45°C inside uncooled enclosures. DDM telemetry reports steady TX power and RX sensitivity even during peak heat. Will source all our industrial-grade optical transceivers from LINK-PP.
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494039
348903
L***s
Belgium
Verified
Purchase
4 .0
2025-05-21
Excellent compatibility with our legacy Alcatel STM-1 network equipment. Wavelengths (1550nm-TX/1310nm-RX) align perfectly and link established immediately over simplex LC fiber. However, the shipment took three days longer than expected to arrive at our Brussels warehouse. Highly recommend the product, but advise planning ahead for shipping lead times!
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character.
494039
348897
C***n
Ireland
Verified
Purchase
5 .0
2025-03-22
We ordered a batch of 50 for a legacy utility substation upgrade. These 155M BiDi modules synced immediately with our switches. Optical diagnostics (DDM) integrated seamlessly into our SNMP platform. Definitely an industrial-grade workhorse for substation automation!
Please write comments with more than three
character.
494039
348893
J***d
Norway
Verified
Purchase
5 .0
2025-01-22
Perfect replacement transceivers for old SONET equipment. We were worried about finding high-quality industrial simplex LC optics at 1550nm-TX/1310nm-RX, but these fit the bill perfectly. DDM function matches original specifications beautifully. The ordering process was super smooth!
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