25GBase-BX-D4-I serves as a robust industrial-grade 25G SFP28 BiDi SMF optical transceiver module, engineered to sustain seamless data transmission across a 40km reach via 1310nm-TX/1270nm-RX wavelengths while enduring extreme thermal environments ranging from -40 to 85°C.
HW Part Number
25GBase-BX-D4-I
Vendor Name
LINK-PP
Form Factor
SFP28
Max Data Rate
25.78Gbps
Wavelength
1310nm-TX/1270nm-RX
Max Cable Distance
40km
Connector
Simplex LC
Media
SMF
Transmitter Type
DFB
Receiver Type
APD
TX Power
-1 to +7dBm
RX Power
-15 to +3dBm
Receiver Sensitivity
＜-19dBm
Receiver Overload
-7dBm
Operating Temperature Range
-40 to 85°C
Protocols
MSA Compliant, CPRI, eCPRI
Key Features of HW 25GBase-BX-D4-I Compatible LINK-PP 25G SFP28
HW 25GBase-BX-D4-I Compatible LINK-PP module is an industrial-grade transceiver that combines single-fiber efficiency with extended reach and intelligent diagnostics. Built to survive harsh temperature variations, this module optimizes fiber infrastructure by consolidating bi-directional traffic onto one single-mode strand. It provides a rugged, space-saving hardware solution tailored for demanding edge deployments.
This model integrates a premium DFB laser transmitter alongside a high-sensitivity APD receiver. While the DFB laser provides a highly stable, narrow-bandwidth light source, the APD receiver excels at capturing weakened signals over long runs. Together, they ensure clean signal integrity and consistent link quality.
25GBase-BX-D4-I: 25 Gbps Connectivity for Outdoor Cabinets
Engineered for unconditioned environments, this module delivers a rapid 25Gbps data rate straight to the network edge. It easily handles high-bandwidth aggregation without suffering from heat-induced performance drops. This makes it perfect for boosting bandwidth in roadside enclosures and remote field terminals.
25GBase-BX-D4-I Module with 1310nm-TX/1270nm-RX Wavelength
By pairing a 1310nm transmit channel with a 1270nm receive channel, the device achieves true bi-directional operation. This precise wavelength separation keeps upstream and downstream data streams completely isolated on the same glass core. As a result, users get clean, simultaneous two-way transport without optical interference.
Designed to bridge wide geographic gaps, this single-mode optic comfortably drives signals across a 40-kilometer span. It allows operators to connect distant nodes back to a central office without installing costly intermediate signal regenerators. This significantly lowers both capital and operational expenses for regional transport loops.
25GBase-BX-D4-I Module with Simplex LC/UPC Interface
Utilizing a simplex LC/UPC connection interface, the transceiver halves total fiber cabling requirements by handling full-duplex traffic over a solitary strand. The ultra-polished UPC finish ensures a tight physical fit that minimizes back-reflection. It is an ideal setup for maximizing capacity in fiber-constrained pathways.
25GBase-BX-D4-I Module with DOM for Real-Time Monitoring
Built-in Digital Optical Monitoring (DOM) grants administrators instant access to real-time internal diagnostics. It constantly measures critical telemetry like transceiver temperature, supply voltage, and receiver optical power. This actionable data allows maintenance teams to fix minor link anomalies before they turn into actual network downtime.
HW 25GBase-BX-D4-I Compatible LINK-PP SFP28 module adheres to strict international standards and holds major certifications including ISO 9001, CE, RoHS, and FCC to ensure safety, environmental compliance, and premium build quality.
Every transceiver undergoes strict hardware and optical performance tests before shipping to guarantee flaw-free operation in the field.
25GBase-BX-D4-I Quality Certifications
These regulatory credentials verify that the transceiver meets global specifications for electromagnetic interference and eco-friendly manufacturing standards.
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.
25GBase-BX-D4-I Certified for Reliable Host-Device Compatibility
The hardware is fully compliant with MSA standards to guarantee seamless interoperability and stable communication across a wide range of industrial networking switches and routers.
Every LINK-PP SFP28 transceiver undergoes a strict validation process to guarantee flawless signal integrity and durability under extreme conditions. To explore our complete evaluation procedures, please visit the LINK-PP Test Support Center.
Optical Spectrum Test
Check wavelength accuracy to prevent channel interference.
Eye Pattern Test
Evaluate transmitter waveform cleanliness and signal quality.
Bit Error Rate Test
Ensure error-free data delivery during maximum throughput.
Temperature Test
Validate hardware stability across extreme environmental swings.
Product Shipping for HW 25GBase-BX-D4-I Compatible LINK-PP 25G SFP28
We guarantee secure handling and swift global delivery for every order. Your shipments receive professional care from dispatch to final arrival.
Anti-Static Protective Packaging
Shield delicate internal circuitry from harmful electrostatic discharge.
Shock-Resistant Transport Protection
Guard the optical hardware against impacts during transit.
Fast Order Processing and Dispatch
Accelerate fulfillment times to minimize project deployment delays.
Global Logistics and International Delivery
Ship items worldwide using reliable express courier networks.
Simply plug the 25GBase-BX-D4-I module into a compatible 25G port, connect the simplex LC fiber, and use DOM to verify the link. This hot-swappable optics transceiver is ideal for deploying high-speed backhaul connections in harsh industrial automation networks, remote edge sub-stations, and smart factory enclosures.
25GBase-BX-D4-I 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 25GBase-BX-D4-I 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:
No, the fully shielded metal housing isolates internal circuitry against heavy EMI, maintaining zero-loss frame transmission. By
admin on
2026-04-15
A:
No, this industrial-grade model is rated for -40°C to +85°C and uses hardened components designed to prevent thermal performance drops. By
admin on
2025-07-21
Our smart factory needed a high-bandwidth link between two facilities located 32km apart. The heavy machinery nearby creates high electromagnetic interference, but these metal-shielded modules maintained a stable link without frame loss. Even when our cabinet temperatures spiked during summer, the module temperature remained safe. It is built tough for demanding industrial automation setups.
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character.
491611
368267
M***s
Thailand
Verified
Purchase
5 .0
2026-05-15
Upgraded our storage cluster links to 25G. Using simplex LC single-mode fiber saved us significant cable tray space inside the hot aisle containment cabinets. Thermal dissipation is surprisingly low for an industrial 40km SFP28 optics.
Please write comments with more than three
character.
491611
368261
E***g
United States
Verified
Purchase
5 .0
2026-03-09
Essential hardware for utility substations requiring high-bandwidth real-time telemetry. The metal housing provides good EMI shielding, and the optical links remain stable near high-voltage transformers.
Please write comments with more than three
character.
491611
368262
H***r
Viet Nam
Verified
Purchase
5 .0
2026-02-12
Replaced our aging 10G BiDi SFP modules with these 25G BiDi optics. The bandwidth upgrade was seamless, and using existing single-fiber infrastructure saved us thousands in physical recabling.
Please write comments with more than three
character.
491611
368257
C***n
Germany
Verified
Purchase
5 .0
2026-01-13
Swapping out older 10G BiDi modules for these 25G SFP28 units allowed us to upgrade a multi-building university campus network without pulling new cabling. We simply plugged them into existing single-mode fiber runs, adjusted port speeds, and the 34km links came live right away. Standard SNMP tools read the DDM registers cleanly for simple network monitoring. Highly recommended for campus upgrades!
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character.
491611
368259
G***d
Canada
Verified
Purchase
5 .0
2025-12-16
Operating in northern Canada means our remote pipeline monitoring nodes face harsh winter weather. We installed these industrial-grade SFP28 optics in unheated outdoor enclosures where ambient temperatures drop below -30°C. Power cycling the remote switch proved the module initializes quickly and maintains stable optical output power under freezing conditions. It is tough, dependable physical layer gear for cold climates.
Please write comments with more than three
character.
491611
368268
A***n
Indonesia
Verified
Purchase
5 .0
2025-10-18
Solid 25G BiDi transceivers at a competitive price point compared to OEM-branded optics. They meet every technical specification required for our 40km links. A good cost-effective alternative for scaling out campus networks.
Please write comments with more than three
character.
491611
368263
C***n
Australia
Verified
Purchase
5 .0
2025-08-12
Working in remote mining sites where enclosure temperatures fluctuate wildly between daytime heat and nighttime cold. These industrial-grade SFP28 modules have been running 24/7 for three months without optical degradation or heat throttling. Highly recommended for rugged edge deployments.
Please write comments with more than three
character.
491611
368256
A***s
Philippines
Verified
Purchase
5 .0
2025-05-03
Modules fit smoothly into our switch cages and the bail latch operates smoothly. DOM telemetry provides accurate voltage and laser bias data. Fits our budget and operational specs nicely.
Please write comments with more than three
character.
491611
368270
J***n
South Africa
Verified
Purchase
5 .0
2025-03-21
We tested the LS-BL312725-40I SFP28 module across a 36km single-mode fiber link to verify signal strength. The 1310nm-TX and 1270nm-RX wavelengths provided clean optical power levels with zero signal degradation. The DDM feature gave us accurate real-time readings for temperature and laser power via our SNMP monitoring tool. It is a solid, reliable choice for long-distance 25G link scaling over single-fiber setups.
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