FN-TRAN-SFP28-LR-BCC | Fortinet Compatible 25GB Single-Mode 10km (25GBASE-LR)

Q: Will this work in place of the FN-TRAN-SFP28-LR?
A: Yes. The FN-TRAN-SFP28-LR-BCC is designed as a plug-and-play replacement for the Fortinet FN-TRAN-SFP28-LR. It matches the SFP28 form factor, supports the same 25GBASE-LR and 10GBASE-LR standards at 25.78 Gbps and 10.3 Gbps, operates at 1310nm wavelength, and delivers the same 10km reach over single-mode fibre.

Q: Which Fortinet platforms support this transceiver?
A: This transceiver is compatible with Fortinet systems equipped with SFP28 slots, including FortiGate and FortiSwitch platforms that support 25 Gigabit Ethernet. The module is designed for any Fortinet device with SFP28 interfaces that comply with IEEE 802.3cc (25GBASE-LR) or 802.3ae (10GBASE-LR) standards.

Q: What fibre type and grade is required for full 10km reach?
A: This module requires standard single-mode fibre (SMF) G.652 to achieve the full 10km transmission distance. The actual reach depends on fibre quality, connector loss, splice loss, and total link budget. The module operates at 1310nm wavelength with duplex LC connectors and is optimised for SMF patch cables with low insertion loss.

Q: Does this module require FEC to operate at 25G speeds?
A: FEC requirements depend on the host platform and link distance. Some 25GBASE-LR deployments require RS-FEC (Reed-Solomon Forward Error Correction) on the host ports for full 10km reach at 25.78 Gbps, particularly in high-BER environments. Consult your Fortinet platform documentation to confirm FEC configuration for optimal performance.

Q: Can I access DDM parameters if my switch does not natively support Fortinet optics?
A: Yes. DDM data is accessible via the standardised I2C interface defined by the SFP MSA specification. The module stores diagnostic parameters in memory addresses compliant with SFF-8472, so any system with DDM-capable software can read optical power, temperature, bias current, and voltage regardless of vendor-specific EEPROM coding.