Product Description

Cisco Compatible 1000BASE-SX SFP Transceiver Module (MMF, 850nm, 550m, LC, DOM)

This Cisco-compatible 1000BASE-SX SFP transceiver module is designed for Gigabit Ethernet applications and is compatible with various Cisco networking equipment including switches, routers, servers, and network interface cards (NICs). The module operates over multi-mode fiber (MMF) using a wavelength of 850nm and supports link lengths up to 550 meters with 50/125µm OM2 MMF, 275 meters with 62.5/125µm OM1 MMF, and 220 meters with 62.5/125µm FDDI MMF.

Featuring low power consumption and hot-swappable capability, this 1G SFP transceiver is ideal for Internet Service Provider (ISP) Gigabit Ethernet communication links, as well as Enterprise and Data Center LAN & SAN networks.

Key Features

  • Form Factor: SFP
  • Data Rate: Up to 1.25Gbps
  • Wavelength: 850nm
  • Max Cable Distance:
    • 550m with 50/125µm OM2 MMF
    • 275m with 62.5/125µm OM1 MMF
    • 220m with 62.5/125µm FDDI MMF
  • Connector: Duplex LC
  • Media: Multi-Mode Fiber (MMF)
  • Transmitter Type: VCSEL (Vertical Cavity Surface Emitting Laser)
  • Receiver Type: PIN Photodiode
  • Digital Diagnostic Monitoring (DDM/DOM): Supported
  • Commercial Temperature Range: 0°C to 70°C (32°F to 158°F)
  • Typical Power Consumption: ≤0.8W
  • Protocols: IEEE 802.3z, SFF-8472, SFP MSA (INF-8074i) Compliant
  • Warranty: 5 Years


Attribute Details
Part Number SFP1G-SX-85
Vendor Name FS
Form Factor SFP
Max Data Rate 1.25Gbps
Wavelength 850nm
Max Cable Distance 550m@50/125µm OM2 MMF, 275m@62.5/125µm OM1 MMF, 220m@62.5/125µm FDDI MMF
Connector Duplex LC
Media MMF
Transmitter Type VCSEL
Receiver Type PIN
DDM/DOM Supported
Commercial Temperature Range 0°C to 70°C (32°F to 158°F)
TX Power -9.5 ~ -3dBm
Receiver Sensitivity < -17dBm
Typical Power Consumption ≤0.8W
Receiver Overload -3dBm
Bit Error Ratio (BER) 1E-12
Extinction Ratio >9dB
EMC (Electro Magnetic Compatibility) Supported
MTBF (Mean Time Between Failures) 2,457,002 Hours
Protocols IEEE 802.3z, SFF-8472, SFP MSA (INF-8074i) Compliant
Warranty 5 Years


  • Internet Service Provider (ISP) Gigabit Ethernet Communication Links
  • Enterprise LAN & SAN Networks
  • Data Center LAN & SAN Networks
  • Other Optical Links

This SFP transceiver module ensures reliable performance and seamless integration with Cisco devices, making it an excellent choice for enhancing network infrastructure with high-speed, long-distance fiber connections.

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