Fortinet FN-TRAN-SX Compatible 1000BASE-SX SFP, 850nm 550m

Fortinet compatible FN-TRAN-SX - Key Features
- Compatibility: Fortinet
- Media Type: Multi-Mode Fiber (MMF)
- Fiber Count: Duplex
- Connector: Double LC/UPC
- Maximum Distance: 550 m
- Average Link Budget: 7.5 dB
- Tx Wavelength: 850 nm
- Supported Data Rate: 1.063 Gbps - 1.25 Gbps
- DDM/DOM: Supported
- Temperature Range: Standard 0°-70°C
Fortinet FN-TRAN-SX Price
Fortinet compatible FN-TRAN-SX Specifications
Form Factor | SFP |
Media Type | Multi-Mode Fiber (MMF) |
Fiber Count | Duplex |
Connector | Double LC/UPC |
Maximum Distance | 550 m |
Average Link Budget | 7.5 dB |
TX Wavelength | 850 nm |
RX Wavelength | 850 nm |
Supported Data Rate | 1.063 Gbps - 1.25 Gbps |
Supported Ethernet Applications | Gigabit Ethernet (1.25 Gbps) |
Supported Fiber Channel Applications | 1G Fiber Channel (1.0625 Gbps) |
DDM/DOM | Supported |
Tx Wavelength Bandwidth | 20 nm (840-860 nm) |
Rx Wavelength Bandwidth | 20 nm (840-860 nm) |
Minimum Transmitting Power | -9.5 dBm |
Maximum Transmitting Power | 3 dBm |
Receiver Sensitivity | -17 dBm |
Receiver Overload | -3 dBm |
Dispersion | 110 ps/nm ps/nm |
Transmitter Type | VSCEL Laser |
Receiver Type | PIN photodiode |
Temperature Range | Standard 0°-70°C |
Power | +3.3V single power supply |
Compliance | CE, Class 1 FDA and IEC60825-1 Laser Safety Compliant, INF-8074i, RoHS, SFP MSA |
Fortinet compatible FN-TRAN-SX Datasheet
v3Complete technical specifications and product details
Fortinet compatible FN-TRAN-SX Description
EdgeOptic's FN-TRAN-SX compatible is a Fortinet-coded version of the EdgeOptic 1.25G-SFP-550D multi-vendor 1000BASE-SX transceiver. It is an SFP module for duplex multimode fiber (MMF) with an LC/UPC interface, built to the IEEE 802.3z 1000BASE-SX standard and 1G Fibre Channel SW (FC-PI). The module is coded with Fortinet-recognized EEPROM, so it works on FortiGate and FortiSwitch SFP ports as a drop-in for the original FN-TRAN-SX.
The transmitter is an 850nm VCSEL paired with a PIN photodiode receiver. The module carries a minimum guaranteed optical budget of 7.5 dB, which supports a reach of up to 550 m over MMF. Reach is an indicative figure derived from the guaranteed optical budget and typical fiber attenuation; OM1 (62.5µm) tops out near 275 m, with 550 m on OM2 grade and above. Digital Optical Monitoring (DOM/DDM) reports transmit power, receive power, temperature, bias current, and supply voltage over the 2-wire serial interface. The module operates across the standard 0 to 70°C range at +3.3V and runs Gigabit Ethernet at 1.25 Gbps or 1G Fibre Channel at 1.0625 Gbps.
The module is CE and RoHS compliant, Class 1 laser rated, and built to the SFP INF-8074i multi-source agreement. Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms, it ships next business day from EU stock with a lifetime warranty. For deployment or cross-reference questions, contact our sales team.
Frequently Asked Questions
Does the FN-TRAN-SX need any FortiGate configuration when linking to a Cisco switch or firewall?
On a direct FortiGate-to-Cisco ASA or Nexus link, the Fortinet configuration guidance for the FN-TRAN-SX is to disable auto-negotiation on both sides: set the FortiGate interface to mediatype gmii with speed 1000full, and set the Cisco side to speed nonegotiate. This applies to FortiGate v7 models that have configurable SFP ports; shared-media port models do not support the mediatype setting. EdgeOptic's compatible carries the same Fortinet EEPROM coding, so the same guidance applies in that deployment scenario.