25GBASE-SR SFP28 Industrial Transceiver: 25G-SFP28-100I

Our EDGEOPTIC 25G-SFP28-100I is a multi-vendor compatible industrial-grade 25GBASE-SR SFP28 dual-fiber optical module designed for 25 Gigabit Ethernet applications in harsh environmental conditions. The 25G-SFP28-100I module operates at 850nm wavelength for both transmission and reception, with data rates from 8.5 to 28.1 Gbps supporting multiple protocol standards and applications. Our industrial 25GBASE-SR SFP28 transceiver utilizes VCSEL (Vertical-Cavity Surface-Emitting Laser) technology for transmission and PIN photodiode for receiving, engineered specifically for reliable operation in extreme temperature environments.

The transceiver ensures a 5.3 dB guaranteed optical link budget with host-based Forward Error Correction (FEC) support, which determines the maximum transmission distance capabilities. Over OM3 multimode fiber, the module achieves 70 meters reach, while OM4/OM5 cabling extends transmission distance up to 100 meters. However, distance is just an indicative parameter calculated for convenience of identification – eventually we calculate distance taking into account minimal optical budget and average attenuation of optical cabling in industry standards. The robust design maintains consistent performance across the entire industrial temperature range, ensuring reliable connectivity in challenging deployment scenarios.

25G-SFP28-100I compatible industrial 25GBASE-SR module is hot-pluggable SFP28 with duplex LC/UPC connectors as an optical interface. The electrical interface conforms to SFF-8431 and SFF-8432 MSA (Multi-Source Agreement) specifications, ensuring compatibility with standard SFP28 host systems supporting multiple vendor equipment platforms. Our industrial 25GBASE-SR SFP28 transceiver can be encoded to be compatible and successfully operate in different 80+ brands of equipment. The module incorporates comprehensive DDM/DOM (Digital Diagnostic Monitoring) functionality providing real-time information including transmitted and received optical power levels, module temperature, bias current, and supply voltage. This diagnostic data is available via MSA-compatible EEPROM interface per SFF-8472 specifications, enabling continuous monitoring of transceiver operational parameters across extreme temperature variations.

The module operates within an extended industrial temperature range of -45°C to +85°C, with maximum power consumption of 1W, specifically designed for deployment in uncontrolled environments including outdoor cabinets, industrial facilities, and remote installations. The enhanced thermal design ensures stable operation without performance degradation across the entire temperature spectrum. Standards compliance includes IEEE 802.3 specifications for 25 Gigabit Ethernet, supporting both 10G Ethernet (10.31 Gbps) and 25G Ethernet (25.78 Gbps) applications. The transceiver achieves multi-vendor interoperability through adherence to SFP28 MSA standards, though equipment with vendor-specific module validation may require custom EEPROM programming for compatibility.

Our industrial 25G SFP28 SR transceiver is CE/RoHS certified and compliant with Class 1 FDA and IEC60825-1 laser safety standards. Typical applications include industrial automation networks, outdoor wireless backhaul systems, transportation infrastructure, utility grid communications, and ruggedized data center deployments. The multi-rate capability accommodates legacy 10 Gigabit Ethernet operation alongside native 25 Gigabit rates, providing operational flexibility for mixed-speed network deployments in harsh environments. Because our focus is providing top quality service, we perform extensive environmental testing including thermal cycling, vibration resistance, and humidity exposure tests, in addition to optical parameter measurements, connector cleanliness tests, and SFP28 transceiver EEPROM memory data validation tests.