FN-TRAN-SFP+BD33-BCC | Fortinet Compatible 10G Single-Mode 40km (10GBASE-BX40U)

Q: Will this work in place of the Fortinet FN-TRAN-SFP+BD33?
A: Yes. This transceiver is a direct replacement for the Fortinet FN-TRAN-SFP+BD33. It shares the same SFP+ form factor, IEEE 802.3ae 10 Gigabit Ethernet compliance, 1330nm TX/1270nm RX wavelengths, and 30km reach over single-mode fibre. The module is plug-and-play compatible with Fortinet systems and initializes identically to the OEM part.

Q: Which Fortinet platforms support this transceiver?
A: This transceiver is compatible with any Fortinet system featuring SFP+ or SFP/SFP+ slots that support 10 Gigabit Ethernet operation. Typical deployments include Fortinet network switches, routers, firewalls, security gateways, and appliances with 10GE SFP+ interfaces. Confirm your platform supports BiDi transceivers and operates at 10G speeds.

Q: Why must this be paired with the FN-TRAN-SFP+BD27, and what happens if I use two FN-TRAN-SFP+BD33 units?
A: BiDi transceivers use wavelength division multiplexing (WDM) with asymmetric wavelengths. The FN-TRAN-SFP+BD33 transmits at 1330nm and receives at 1270nm. Its counterpart, the FN-TRAN-SFP+BD27, transmits at 1270nm and receives at 1330nm. Pairing two identical units results in no link because both ends transmit and receive on the same wavelengths, causing signal collision and receiver incompatibility. Always deploy complementary wavelength pairs for bidirectional communication.

Q: What fibre type and grade are required to achieve the full 30km reach?
A: This transceiver requires OS2 single-mode fibre (SMF) with 9/125 micron core/cladding diameter to achieve the rated 30km reach. Actual distance depends on fibre quality, insertion loss at connectors, splice loss, and total link budget. Clean, low-loss connectors and minimal splice points are critical. Multimode fibre is not supported.

Q: Can I access DOM data on this transceiver, and what parameters are available?
A: Yes. This module implements SFF-8472 digital diagnostics, accessible via the two-wire serial interface on compatible host systems. Real-time monitoring parameters include optical transmit power (TX), received optical power (RX), laser bias current, transceiver supply voltage, and internal temperature. Use vendor-specific CLI commands or network management software to retrieve DOM data for link health assessment and troubleshooting.