LINK-PP LS-BL332725-20C is a 25G SFP28 BiDi single-mode optical transceiver engineered for 20km data transmission via a simplex LC/UPC connector, utilizing a dual 1330nm-TX/1270nm-RX wavelength split and supporting DOM functionality within a standard 0°C to +70°C commercial operating temperature range.
LINK-PP Part Number
LS-BL332725-20C
Vendor Name
LINK-PP
Form Factor
SFP28
Max Data Rate
25.78Gbps
Wavelength
1330nm-TX/1270nm-RX
Max Cable Distance
20km
Connector
Simplex LC
Media
SMF
Transmitter Type
DFB
Receiver Type
PIN
TX Power
-1 to +7dBm
RX Power
-15 to +3dBm
Receiver Sensitivity
＜-14dBm
Receiver Overload
2dBm
Operating Temperature Range
0 to 70°C
Protocols
eCPRI, SFF-8472, SFF-8432, SFF-8431
Key Features of LINK-PP LS-BL332725-20C 25G SFP28
LINK-PP LS-BL332725-20C is a 25G SFP28 BiDi optical transceiver module designed for single-mode fiber infrastructure. It integrates advanced 1330nm-TX/1270nm-RX wavelength splitting and DOM support to enable reliable data transmission over distances up to 20km. This module delivers an ideal combination of fiber efficiency, precise diagnostic monitoring, and robust extended-reach connectivity.
LINK-PP LS-BL332725-20C 25G SFP28 Optical Module
This module features a 2-wire interface for management specifications compliant with the SFF-8472 digital diagnostic monitoring interface for optical transceivers. It allows network administrators to easily access critical operational data and manage module settings. This standardization ensures seamless compatibility and reliable management within major networking platforms.
LS-BL332725-20C: 25 Gbps Connectivity for Single-Fiber Long-Haul Links
Operating at a high-speed data rate of 25Gbps, this module fulfills the bandwidth demands of modern 5G fronthaul and enterprise networks. It provides a significant speed upgrade from traditional 10G links while utilizing existing fiber architecture. The 25G capability ensures rapid data throughput for traffic-heavy aggregation layers.
LS-BL332725-20C Module with 1330nm-TX/1270nm-RX Wavelength
The transceiver utilizes a specialized BiDi design with a 1330nm-TX and 1270nm-RX wavelength combination. This bi-directional setup allows simultaneous transmission and reception on different frequencies over a single strand of fiber. By splitting the optical wavelengths, it optimizes existing cable plants and cuts fiber deployment costs in half.
Engineered for single-mode fiber (SMF), this module supports steady data transmission over distances up to 20km. It is well-suited for metro access networks, mid-mile distributions, and long-range inter-building connections. The extended reach ensures signal integrity remains uncompromised across spans without intermediate amplification.
LS-BL332725-20C Module with Simplex LC/UPC Interface
Equipped with a single simplex LC/UPC connector, the module simplifies physical fiber patching and reduces cable bulk in high-density racks. This physical design ensures low optical insertion loss and secure, standard-compliant physical connections. It maximizes port density while lowering the physical complexity of fiber routing.
LS-BL332725-20C Module with DOM for Real-Time Monitoring
Featuring Digital Optical Monitoring (DOM) capability, this transceiver provides real-time tracking of critical operational parameters. Users can monitor transceiver temperature, laser bias current, supply voltage, and optical power levels continuously. This proactive diagnostic feature helps detect potential link failures early and minimizes system downtime.
LINK-PP LS-BL332725-20C 25G SFP28 Certification
LINK-PP LS-BL332725-20C 25G SFP28 BiDi module is fully certified under international standards including ISO 9001, CE, RoHS, and FCC to guarantee the highest levels of safety, environmental compliance, and manufacturing quality.
Every transceiver module undergoes strict hardware inspection and signal integrity testing to ensure stable and error-free performance in demanding network environments.
LS-BL332725-20C Quality Certifications
These official industry credentials verify that the transceiver adheres to rigorous global regulations regarding environmental safety and electromagnetic interference.
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-BL332725-20C Certified for Reliable Host-Device Compatibility
Comprehensive testing across major switch platforms ensures seamless interoperability, stable digital monitoring, and plug-and-play deployment without system errors.
Each LS-BL332725-20C 25G SFP28 module undergoes strict validation to ensure data integrity and complete network compatibility; discover our full inspection procedures at the LINK-PP Test Support Center.
Optical Spectrum Test
Verify optical wavelengths and laser stability across all active channels.
Eye Pattern Test
Analyze transmitter signal quality to ensure clean and open waveforms.
Bit Error Rate Test
Confirm reliable, error-free data transmission under maximum network traffic loads.
Temperature Test
Test operational stability across the entire commercial thermal environment range.
Product Shipping for LINK-PP LS-BL332725-20C 25G SFP28
Our optimized distribution process combines advanced physical protection with reliable transit networks to ensure secure, timely delivery worldwide.
Anti-Static Protective Packaging
Eliminate static risk during handling with specialized ESD-safe enclosures.
Shock-Resistant Transport Protection
Absorb transit vibrations and physical impacts using ruggedized internal packaging.
Fast Order Processing and Dispatch
Streamline warehouse fulfillment to minimize lead times before departure.
Global Logistics and International Delivery
Coordinate with premier freight carriers for dependable worldwide tracking.
Slide the LS-BL332725-20C hot-swappable 25G SFP28 BiDi module into your host device, connect the simplex LC cable, and monitor performance via DOM. It deploys rapidly across modern networking environments, delivering efficient single-fiber bandwidth for enterprise uplinks, carrier networks, and long-range telecommunication infrastructure.
LS-BL332725-20C 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-BL332725-20C 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.
LINK-PP provides after-sales support for the smooth deployment and reliable operation of the optical modules.
15-day no-reason return and refund
Free replacement for dead-on-arrival (DOA) or defective items within the initial period
Free repair services for manufacturing defects throughout the warranty period
Warranty exclusions and conditions apply
LINK-PP LS-BL332725-20C 25G SFP28 FAQ
Explore clear answers about fiber connectivity, exact transmission wavelengths, management interface standards, and practical tips for handling optical signal warnings.
No, it is a BiDi (Bi-Directional) transceiver that transmits and receives data over a single strand of simplex fiber.
The LS-BL332725-20C SFP28 BiDi optical module uses a wavelength split of 1330nm for transmitting (TX) and 1270nm for receiving (RX).
Yes, it features a 2-wire management interface that is fully compliant with the SFF-8472 specification.
Inspect the fiber patch cord ends for dirt, clean the LC/UPC connector using an optical cleaning tool, and verify that the link budget does not exceed 20km.
A:
The SFF-8472 compliant DOM telemetry reports real-time module temperature, laser bias current, and supply voltage directly to your SNMP monitoring dashboard. By
admin on
2026-04-29
A:
This module features low power consumption (typically under 1.5W), designed to dissipate heat efficiently without placing an extra thermal load on standard switch fans. By
admin on
2025-09-30
A:
Yes, it works perfectly with standard OS2 single-mode fiber. Since this is a BiDi module, you just need to make sure you use a Simplex LC cable instead of a standard dual-fiber duplex patch cord. By
admin on
2025-02-17
Replaced legacy 10G SFP+ BiDi optics with these 25G SFP28 20km modules during a scheduled maintenance window. Hot-swapping was effortless with zero impact on neighboring active ports. Transmit and receive path optical isolation is top-notch.
Please write comments with more than three
character.
476098
364538
M***g
Nepal
Verified
Purchase
5 .0
2026-02-03
Upgrading older 10G links to these 25G SFP28 20km optics went smoothly across our entire campus backbone. The built-in DOM feature feeds accurate real-time temperature and optical power metrics directly into our network management dashboard. Tested across a 14km single-mode fiber path with zero packet loss.
Please write comments with more than three
character.
476098
364541
L***y
Maldives
Verified
Purchase
5 .0
2026-01-22
Operating a regional ISP network requires getting maximum performance out of every single-strand fiber lease. We installed these 20km BiDi SFP28 optical modules across multiple remote aggregation nodes to double our available backhaul bandwidth. Compatibility was flawless across our multi-vendor router fleet, with all boards loading the SFP28 MSA compliant settings instantly. Even over our longest 18.5km span, the DFB laser punched through attenuation effortlessly. Internal temperatures stayed around 40°C under heavy traffic, making this an ultra-reliable optics transceiver for high-capacity telecom links.
Please write comments with more than three
character.
476098
364537
R***n
Morocco
Verified
Purchase
5 .0
2025-11-12
Our enterprise campus covers multiple buildings across a public road with limited leased fiber strands. Switching our links from dual-strand to 25G BiDi saved us substantial monthly dark fiber leasing fees. Solid metal casing dissipates heat effectively inside dense switch enclosures.
Please write comments with more than three
character.
476098
364544
Z***n
Lithuania
Verified
Purchase
4 .0
2025-10-24
No issues at all with this 20km BiDi SFP28 performance, everything works smoothly. However, the logistics process felt a bit slow, especially during customs clearance.
Please write comments with more than three
character.
476098
364550
V***w
Israel
Verified
Purchase
5 .0
2025-09-17
We needed to double our bandwidth between two data halls 16km apart without laying new fiber. Ordered a batch of these LS-BL332725-20C 25G BiDi modules paired with the matching 1270TX/1330RX modules. They synced instantly across our multi-vendor switches. Optical RX power came in clean at -8.2 dBm. Incredible value for data center interconnects!
Please write comments with more than three
character.
476098
364536
J***s
Brunei Darussalam
Verified
Purchase
5 .0
2025-07-08
Upgrading our university campus backbone to 25GbE over existing single-strand fiber patch panels went seamlessly with these modules. The optical isolation between the 1330nm transmit and 1270nm receive channels is remarkably sharp, eliminating crosstalk across our 15km inter-building links. The metal casing feels high-grade, featuring a smooth bail-latch mechanism that secures firmly into high-density 25G switch ports. SNMP telemetry queries report accurate real-time metrics for supply voltage, laser bias current, and operating temperatures. It provides excellent transmission stability and high compatibility for modern campus infrastructure upgrades.
Please write comments with more than three
character.
476098
364547
S***r
Egypt
Verified
Purchase
5 .0
2025-06-04
Ordered a batch for a multi-building network upgrade where dark fiber availability was limited. Running these 1330/1270nm optics over single-strand SMF cut our fiber strand requirements in half. EEPROM compatibility was seamless across all line cards, and shipping was quick with proper anti-static packaging.
Please write comments with more than three
character.
476098
364535
N***d
Cambodia
Verified
Purchase
5 .0
2025-04-28
Used in a campus network upgrade replacing dual-fiber 25G SFP28 modules. The 1330/1270nm BiDi design significantly reduced fiber usage. Signal integrity is excellent, and latency remains low. Integration with existing network infrastructure was seamless.
Please write comments with more than three
character.
476098
364546
O***y
Libyan Arab Jamahiriya
Verified
Purchase
4 .0
2025-03-05
Overall very satisfied with the optical performance and build quality. The only drawback was the longer delivery time, which might be a consideration for urgent projects.
Please write comments with more than three
character.
476098
364539
W***p
Belarus
Verified
Purchase
5 .0
2025-02-25
Space and fiber patch panel density are at a premium in our data center, making single-strand BiDi technology essential for our growth. Replacing dual-strand optics with these BiDi SFP28 optical transceivers cut our patch cable density in half while increasing throughput significantly. Operating inside hot-aisle switch enclosures, the internal module temperature remained well within normal commercial limits at 44°C. Optical loss testing verified consistent signal strength across all purchased units, matching strict industry specifications. It delivers reliable performance, clean optical budget, and outstanding compatibility.
Please write comments with more than three
character.
476098
364549
P***w
Viet Nam
Verified
Purchase
5 .0
2025-01-16
We run a regional access network and needed dependable simplex LC optics for central office aggregation links. These modules handled our peak traffic loads effortlessly. The 1330nm-TX and 1270nm-RX channels are well-isolated, showing excellent laser stability under heavy continuous utilization.
Please write comments with more than three
character.
476098
197113
K***i
Ireland
Verified
Purchase
5 .0
2024-04-20
I'm very happy with my transaction and purchase. The Optical Transceiver Module works with no issue. I would definitely recommend this company for customer service and speed. I will be purchasing from them again in the future.
Please write comments with more than three
character.
476098
197120
J***e
United Arab Emirates
Verified
Purchase
5 .0
2024-04-17
I received my order very Fast and in excellent condition. The 10/25/40G Transceiver Modules and Lan Transformer were exactly as stated and well packaged. I'll test them tomorrow and reedit the review.
Singapore · English · SGD
