Description

Farsince 25GBASE‑LR SFP28 is a hot‑pluggable optical transceiver that delivers 25‑Gbps connectivity over single‑mode fiber using a 1310 nm wavelength. The module integrates a DFB transmitter and a PIN‑TIA receiver in a standard SFP28 MSA housing with duplex LC/UPC interface and digital diagnostics. It operates over two strands of G.652 SMF to support links up to 10 km, fitting leaf‑spine interconnects, enterprise and campus aggregation, and CPRI/eCPRI fronthaul or backhaul where consistent, low‑latency 25G is required.

The design offers predictable link budgets for 10 km while maintaining low power draw and broad platform interoperability. DOM in accordance with SFF‑8472 enables real‑time monitoring of temperature, voltage and optical power to simplify field maintenance. Compliant with IEEE 802.3by and SFF‑8431/8432, the module installs by hot swap and works with standard LC patch cords. Farsince supports vendor‑specific coding, project labeling, acceptance testing, and matched accessories to streamline deployment and ensure stable supply.

Specifications

• Product Type: 25GBASE‑LR SFP28 optical transceiver
• Host Interface: SFP28 MSA, hot‑pluggable
• Data Rate: 25 Gbps nominal
• Wavelength: 1310 nm
• Reach: Up to 10 km on G.652 single‑mode fiber
• Connector: Duplex LC/UPC
• Fiber Type: SMF, two‑fiber
• Transmitter/Receiver: 1310 nm DFB laser / PIN‑TIA photodiode
• Digital Diagnostics: DOM/DDM per SFF‑8472
• TX Power: –8 to +3 dBm (typical)
• Receiver Sensitivity: ≤ –13 dBm; Overload ≥ +2 dBm (typical)
• Application: Data center leaf‑spine, enterprise aggregation, CPRI/eCPRI links
• Protocols: IEEE 802.3by 25GBASE‑LR; SFF‑8431/8432 compliant
• Installation: Use clean LC endfaces; observe link budget on SMF
• Compliance: RoHS, REACH
• Customization: Platform coding, labeling and test reports available