Fortinet FN-TRAN-SX FR-TRAN-SX Compatible 1000BASE-SX SFP Transceiver (MMF, 850nm, 550m, LC, Industrial, DOM)
Features

Proven Performance
When performance and reliability are vital, use our 1G SFP module to build your network. OPTCORE transceivers are engineered, produced, and tested in-factory for reliable end-to-end quality.

Proven Compatibility
There’s an easy way to verify compatibility: test in real network devices. The OPTCORE SFP transceiver is tested for compatibility with multi-switch devices to ensure flawless functioning.

Enjoy Massive Saving
Compared to the original transceiver, the OPTCORE 1G SFP module can save you up to 80% on project and optical networking cabling. You won't find a better combination of quality and affordability.
Specifications
Compatible OEM Part# | FN-TRAN-SX FR-TRAN-SX | Manufacturer | OPTCORE |
Manufacturer Part# | OSP1250-8505DTR | Form Factor | SFP |
Data Rate | 1.25 Gbps | Wavelength | 850 nm |
Media Type | MMF | Max Distance | 1km@50/125µm OM3 550m@50/125µm OM2 [email protected]/125µm OM1 |
Transmitter Type | VCSEL | Receiver Type | PIN |
Transmitter Power | -9 ~ -3 dBm | Receiver Sensitivity | < -18 dBm |
Extinction Ratio | > 9 dB | Receiver Overload | > 0 dBm |
Connector | LC Duplex | Power Consumption | 0.8 W |
DDM/DOM | Yes | Compliance | RoHS, CE, REACH SFP MSA, IEEE 802.3z, SFF-8472 |
Environment | Operating Temperature: -40~85°C Storage Temperature: -40~85°C |
Application | Gigabit Ethernet 1G Fibre Channel Switch to Switch Interface Switch to NIC or Media Converter Interface Other 1G Optical Links |
Shipping Weight | 0.03 kg | Dimensions (LxWxH) | 55.5×13.7×12 mm |
Application Diagram

Industrial Ethernet Switch
SFP-1G-SX-I
FOC-125
LC-LC-OM2-D1M
SFP-1G-SX-I
Industrial Switch (48xRJ45, 4xSFP)

Industrial Ethernet Switch
SFP-1G-SX-I
LC-LC-OM2-D1M
SFP-1G-SX-I
1G SFP Converter
Cat6 Cable
Industrial Switch
Key Features
Industrial-Grade SFP for Industrial Gigabit Ethernet
Designed for harsh industrial environments, the 1000BASE-SX SFP provides secure 1G connectivity for industrial automation, manufacturing, security, transportation, oil and gas, mining, and smart cities. Typically used in industrial Ethernet switches, media converters, and routers.
Intelligent DOM/DDM for Reliable Networks
With built-in DOM/DDM function, the SFP module allows the users to monitor the fiber link operating parameters in real-time. That ensures a reliable optical network and helps locate network problems quickly.
Optimal Performance and Quality for 1G Industrial Networks
Built with a Semtec/Macom chip (or from an industry leader), a reliable VCSEL laser / PIN, and other rugged components, the SFP module delivers low power consumption and stable optical links for 1G industrial networks. You can rest assured regarding quality and performance.
Compatibility
- FS-108E
- FS-108E-POE
- FS-108E-FPOE
- FS-108F
- FS-108F-POE
- FS-108F-FPOE
- FS-110G-FPOE
- FS-124E
- FS-124E-POE
- FS-124E-FPOE
- FS-124F
- FS-124F-POE
- FS-124F-FPOE
- FS-124G
- FS-124G-FPOE
- FS-148E
- FS-148E-POE
- FS-148F
- FS-148F-POE
- FS-148F-FPOE
- FS-224D-FPOE
- FS-248D
- FS-224E
- FS-224E-POE
- FS-248E-POE
- S-248E-FPOE
- FS-424D
- FS-424D-POE
- FS-424D-FPOE
- FS-424E
- FS-424E-POE
- FS-424E-FPOE
- FS-424E-Fiber1
- FS-M426E-FPOE
- FS-448D
- FS-448D-POE
- FS-448D-FPOEFS-448E
- FS-448E-POE
- FS-448E-FPOE
- FS-524D
- FS-524D-FPOE
- FS-548D
- FS-548D-FPOE
- FS-624F
- FS-624F-FPOE
- FS-648F
- FS-648F-FPOE
- FS-1024D
- FS-1024E
Note: All trademarks, products, and company names mentioned are the property of their respective owners and are used for comparative purposes only. This product is NOT certified or endorsed by Fortinet.
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