LS-BL315501-20I delivers robust 155M SFP BiDi optical transceiver functionality, utilizing an onboard FP laser and PIN photodetector combination to sustain 1310nm-TX/1550nm-RX bidirectional link lengths reaching 20km.
LINK-PP Part Number
LS-BL315501-20I
Vendor Name
LINK-PP
Form Factor
SFP
Max Data Rate
155Mbps
Wavelength
1310nm-TX/1550nm-RX
Max Cable Distance
20km
Connector
Simplex LC
Media
SMF
Transmitter Type
FP
Receiver Type
PIN
TX Power
-14 to -8dBm
RX Power
-32 to -6dBm
Receiver Sensitivity
< -32dBm
DOM Support
Yes
Operating Temperature Range
-40 to 85°C
Protocols
Fast Ethernet, Gigabit Fibre Channel, MSA Compliant
Key Features of LINK-PP LS-BL315501-20I 155M SFP
LINK-PP LS-BL315501-20I is an industrial-grade 155M BiDi SFP optical module designed for stable long-reach data transport. By deploying bi-directional wavelength splitting, it achieves efficient data routing over distances up to 20km via a single fiber line. The addition of standard digital diagnostics ensures continuous link transparency in harsh operational environments.
LINK-PP LS-BL315501-20I 155M SFP Optical Module
The transceiver consists of three sections: a FP laser transmitter, a PIN photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit. This cohesive hardware layout manages electro-optical conversion with great precision. It forms the core foundation that guarantees steady signal processing even under harsh environmental conditions.
LS-BL315501-20I: 155 Mbps Connectivity for Edge Industrial Grid
Running at a steady line rate of 155Mbps, this device satisfies the precise bandwidth needs of automation systems and remote field environments. It keeps communication channels responsive and stable within substations and edge utility setups. The optimized data rate prevents traffic bottlenecks in critical grid links.
LS-BL315501-20I Module with 1310nm-TX/1550nm-RX Wavelength
Utilizing bidirectional optical design, the module separates incoming and outgoing traffic on a 1310nm/1550nm split using only one fiber strand. This single-strand approach maximizes physical infrastructure efficiency by instantly doubling data capacity. It eliminates the need for expensive additional fiber installation over existing pathways.
The module easily overcomes signal attenuation to span up to 20km across single-mode fiber infrastructure. This extensive reach bridges wide gaps between distant field nodes without requiring inline amplifiers. It offers a clean, direct connection option for long-range regional link setups.
LS-BL315501-20I Module with Simplex LC Interface
A small-footprint Simplex LC receptacle allows for fast, secure fiber termination in tight distribution boxes. Utilizing a single-port setup halves the bulk of patches and cords in high-density networking racks. This design keeps physical cable routing exceptionally organized and cost-efficient.
LS-BL315501-20I Module with DOM for Real-Time Monitoring
Integrated Digital Optical Monitoring (DOM) grants network administrators immediate visibility into critical hardware telemetry. Users can constantly track real-time changes in internal temperature, voltage, and laser currents. This transparent diagnostic layer helps catch minor link degradation before a full network outage occurs.
LINK-PP LS-BL315501-20I 155M SFP Certification
LINK-PP LS-BL315501-20I aligns with major international benchmarks, officially meeting ISO 9001, CE, RoHS, and FCC criteria for quality assurance and eco-friendly manufacturing.
Our comprehensive validation process puts every transceiver through strict hardware checks and signal integrity screenings prior to packaging.
LS-BL315501-20I Quality Certifications
These regulatory approvals confirm that the hardware adheres to strict global guidelines regarding engineering integrity and industrial safety.
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-BL315501-20I Certified for Reliable Host-Device Compatibility
Comprehensive cross-vendor inspection ensures that this module communicates smoothly and maintains stable port interoperability with diverse multi-vendor networking hardware.
Rigorous Testing Ensures Reliable SFP Performance
Comprehensive quality inspections safeguard network stability by weeding out faulty equipment before shipping. Learn more about our validation processes by visiting the LINK-PP Test Support Center.
Optical Spectrum Test
Examine emitted light properties to ensure stable wave transmission.
Eye Pattern Test
Evaluate transmitter signal clarity and overall waveform health.
Bit Error Rate Test
Check data integrity across the entire fiber connection.
Temperature Test
Confirm hardware reliability under varying environmental field conditions.
Product Shipping for LINK-PP LS-BL315501-20I 155M SFP
Secure transit methods ensure your optical modules arrive safely. Reliable dispatch teams route your orders directly to your location.
Anti-Static Protective Packaging
Prevent electrical damage by wrapping modules in specialized shielding packaging.
Shock-Resistant Transport Protection
Deploy durable external enclosures to safeguard cargo against rough transit.
Fast Order Processing and Dispatch
Turnaround bulk requests immediately to minimize overall fulfillment delays.
Global Logistics and International Delivery
Coordinate worldwide freight delivery through reliable overseas shipping networks.
LINK-PP LS-BL315501-20I BiDi optical transceiver slides easily into standard SFP ports for immediate plug-and-play setup. This industrial-grade module effectively runs long-range automation networks, remote utility grids, and traffic control hubs, delivering steady, bi-directional single-fiber data transmission across harsh field deployments.
LS-BL315501-20I 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-BL315501-20I 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, the built-in microcontroller is calibrated for industrial extremes, ensuring precise optical diagnostics even at -40°C conditions. By
admin on
2026-04-28
A:
No, it must be paired with its complementary module (TX1550nm/RX1310nm) on the opposite end to complete the bidirectional single-core link. By
admin on
2025-09-25
A:
Yes, we offer tiered wholesale discounts for large-scale enterprise deployments. Please contact our sales team to receive a formal custom quotation. By
admin on
2025-04-14
We deploy these 155M single-mode transceiver modules in northern outdoor hubs. Temperature drops way below freezing, but these industrial optics maintain a highly stable laser emission. Simplex LC saves us massive fiber splice time.
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493982
346460
A***e
Denmark
Verified
Purchase
4 .0
2026-04-07
The 155M BiDi SFP transceivers themselves work beautifully in our industrial switches and the DOM metrics are highly accurate, but our delivery was delayed by two days at the local courier sorting hub. It caused a minor scheduling conflict for our deployment team. The hardware is perfect, but I recommend ordering a week in advance to cushion against local logistics hiccups.
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character.
493982
346476
Y***e
Japan
Verified
Purchase
5 .0
2026-03-28
Managing the communications infrastructure for a major urban transit grid demands an incredibly strict qualification process for any third-party network component, and we subjected a sample batch of LINK-PP LS-BL315501-20I wholesale units to rigorous laboratory validation. The manufacturing tolerances on these transceivers are exceptional; the cast metal housing is precisely machined to slide smoothly into standard SFP cages while providing superior electrical grounding to minimize electromagnetic interference (EMI) near high-voltage lines. Our automated test benches confirmed that the 1310nm transmitter and 1550nm receiver run precisely within their defined spectral widths, producing a clean, wide-open optical eye diagram with excellent signal integrity over the full 20km single-mode fiber distance. Having a highly consistent, MSA-compliant factory supplier allows our enterprise to drastically reduce capital expenditures while maintaining absolute operational safety and network reliab
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493982
346456
N***y
India
Verified
Purchase
5 .0
2026-03-11
Our facility runs hot in certain outdoor enclosures, so standard commercial optics are a no-go. This industrial single-mode SFP 20km works flawlessly up to its rated limits. The DDM/DOM data is highly accurate when checked against our hardware console. Top marks.
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character.
493982
346464
S***e
Indonesia
Verified
Purchase
5 .0
2026-02-20
We ordered LINK-PP LS-BL315501-20I wholesale for a major rail transit signaling project. The build quality of the metal housing is superb and provides great ESD protection. Every unit passed our internal QC loop with zero jitter issues.
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493982
346458
W***r
Finland
Verified
Purchase
5 .0
2026-01-30
In the industrial automation and energy distribution sector, commercial-grade electronics are completely out of the question due to thermal stress, which is why we deployed a fleet of these industrial-grade 155M SFP transceivers across our uncooled roadside power distribution cabinets and wind turbine nodes. Our primary operational hurdle was finding a transceiver that could survive winter freezes and high-heat summer spikes inside sealed metal enclosures, and this module has proven its true industrial-grade rating over four months of continuous field operations. Monitoring the internal diagnostic telemetry via DDM reveals that the laser bias current remains exceptionally stable with zero wavelength drift on either the 1310nm TX or 1550nm RX channels despite massive ambient temperature fluctuations. The mechanical Simplex LC interface provides an exceptionally tight, dust-resistant latching fit that handles heavy equipment vibration effortlessly, delivering a highly engineered product
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493982
346472
L***e
Italy
Verified
Purchase
5 .0
2026-01-03
Fantastic option if you need to double your capacity on a single strand. This 155M SFP BiDi 1310nm-TX/1550nm-RX 20km module has built-in DOM which made tuning our Tx power very straightforward during commissioning. Will definitely put LINK-PP on our preferred vendor list.
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character.
493982
346462
J***f
Japan
Verified
Purchase
5 .0
2025-12-21
We ordered a batch of these Simplex LC 155M SFP optical transceiver modules for a municipal fiber network expansion. LINK-PP nailed the compatibility with our legacy gear. TX 1310nm and RX 1550nm signals are well within normal attenuation limits over 18km of field fiber. Cheers!
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493982
346461
Z***n
Spain
Verified
Purchase
4 .0
2025-12-10
The LS-BL315501-20I supplier delivered the optics a day later than expected due to a customs delay, which caused a bit of scheduling hassle for our field crew. However, the 155M BiDi SFP transceivers themselves work beautifully in our switches. Great DOM features and solid metal build. Just order with a few days of cushion for shipping!
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493982
346475
B***m
Sweden
Verified
Purchase
4 .0
2025-11-30
The courier service required an unexpected regional signature authorization at our customs border, which pushed the arrival time back by 24 hours. Once these 155M SFP transceivers arrived, they performed flawlessly inside our freezing sub-zero outdoor cabinets, and the real-time SNMP data is incredibly precise. The modules are great; just be prepared for occasional import paperwork delays.
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493982
346454
U***n
Hong Kong
Verified
Purchase
5 .0
2025-11-04
You can't beat the LINK-PP SFP transceiver pricing for an industrial broad-temperature range module. We tested it alongside OEM parts that cost three times more, and the performance is completely identical. Perfect for single-mode fiber optimization.
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character.
493982
346470
O***y
Israel
Verified
Purchase
5 .0
2025-10-05
Highly efficient BiDi SFP 1310nm TX 1550nm RX module. We saved a lot on fiber leasing fees by upgrading to simplex links. It is completely plug-and-play on our switches without forcing any special port configurations. Very pleased with this purchase.
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character.
493982
346455
T***k
Hungary
Verified
Purchase
5 .0
2025-09-02
Perfect 20km BiDi single-mode SFP for industrial PLC networking. It handles the 155M Fast Ethernet standard without any frame drops. Simplex LC connector locks with a solid click. Will buy again for next campus upgrade.
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493982
346469
V***f
France
Verified
Purchase
5 .0
2025-08-25
We recently completed a massive fiber consolidation project across a distributed industrial park where fiber core exhaustion was our primary roadblock, as laying new single-mode fiber cables would have decimated our budget. We opted to migrate our legacy 155Mbps Fast Ethernet monitoring links to single-strand infrastructure using this 155M SFP BiDi 1310nm-TX/1550nm-RX transceiver module, and the deployment has been stellar. We paired this module with its matching counterpart on the remote end, ran a 48-hour continuous Bit Error Rate Test (BERT) over an 18.5km fiber span with multiple patch panels, and returned zero frame losses or CRC errors. The digital optical monitoring (DOM) integration via CLI works seamlessly with our multi-vendor core infrastructure, allowing our NOC to poll real-time metrics like TX/RX power, internal module temperature, and supply voltage via SNMP, making these optics a bulletproof, cost-effective solution for any network engineer managing long-reach legacy te
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493982
346471
M***t
Iran, Islamic Republic of
Verified
Purchase
5 .0
2025-07-29
Using these industrial grade SFP transceiver 155M units inside wind turbine control panels. They experience a lot of vibration and wide temperature swings, but the Simplex LC latch holds exceptionally tight. No CRC or alignment errors on the Fast Ethernet links so far. Great work.
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character.
493982
346459
X***k
Sweden
Verified
Purchase
5 .0
2025-06-14
Managing critical out-of-band management links for remote electrical substations in northern regions requires network components that can withstand sub-zero arctic environments, which is why we standardized on this industrial 155M single-mode SFP transceiver. Advanced telemetry is vital for our operations, and the DOM functions on these modules interface seamlessly with our automated SNMP monitoring platform, giving our central NOC real-time visibility into laser temperature, TX power, and optical receive levels. Even when external temperatures cratered to -35°C last winter, the internal bias and heating compensation algorithms of these industrial optics kept the optical output within a fraction of a decibel of its baseline measurement. The Simplex LC layout allowed us to double our available capacity inside tight, space-constrained outdoor patch panels, providing an exceptionally reliable product for high-consequence utility networks where on-site maintenance trips are incredibly cost
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493982
346473
R***k
Ireland
Verified
Purchase
5 .0
2025-05-09
Needed a reliable 20km 155M BiDi SFP optical module for a regional telemetry link. Plugged this module in, link light came up instantly, and DOM metrics showed perfectly safe Rx levels. LINK-PP continues to dominate the cost-to-performance ratio.
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