Cisco 1000Base-LX SFP (mini-GBIC) Transceiver

The Cisco 1000Base-LX SFP (mini-GBIC) Transceiver is a compact, hot-swappable module that brings reliable fiber connectivity to your Cisco Small Business or Cisco Small Business Pro Series switches. Designed to be easy to install and configure, this transceiver lets you add a high-performance Gigabit Ethernet link over long-range single-mode fiber, expanding your network’s reach without sacrificing simplicity or reliability.

• Expand your network with ease. Add fiber connectivity or an extra Gigabit Ethernet port to compatible Cisco Small Business or Small Business Pro Series switches, enabling flexible deployments and smoother network upgrades without major reconfigurations.
• Long-range single-mode fiber support. Optimized for 1000BASE-LX, this transceiver uses a 1310 nm wavelength and supports links up to 10 km, ideal for campus, branch, or inter-building connections.
• Plug-and-play, hot-swappable design. Install quickly in supported switches with automatic negotiation for 1 Gbps full-duplex operation, minimizing downtime and maintenance complexity.
• Compact, reliable mini-GBIC form factor. The LC duplex connector and small footprint fit neatly into crowded data centers or office racks while delivering Cisco-grade reliability and performance.
• Cisco-grade compatibility and support. Built to integrate with Cisco Small Business lines, backed by Cisco engineering quality, and designed for seamless interoperability within Cisco network ecosystems.

Technical Details of Cisco 1000Base-LX SFP

• Form factor: SFP (mini-GBIC)
• Interface: 1000BASE-LX
• Data rate: 1.0 Gbps
• Wavelength: 1310 nm
• Fiber type: Single-mode fiber (SMF)
• Distance: Up to 10 km (SMF, depending on fiber and link budget)
• Connector: LC duplex
• Compatibility: Cisco Small Business and Cisco Small Business Pro Series switches
• Hot-swappable: Yes
• Operating temperature: Standard commercial environment (0–70°C typical)

How to install Cisco 1000Base-LX SFP

• Power down the device only if your switch model requires it; many Cisco switches support hot-swapping of SFP modules, but always follow your specific hardware guidelines.
• Remove any protective dust cap from the SFP port and inspect the connector to ensure there is no debris.
• Align the SFP module with the port and gently insert it into the slot until it seats securely with a click. Do not apply excessive force.
• Connect a single-mode fiber patch cable with LC duplex connectors to the SFP module and to the corresponding port on the other network device, ensuring correct polarity (transmit to receive).
• Power on the switch (if you powered it down) and verify the link status via the switch’s management interface or front-panel LEDs. If required, configure the port to 1 Gbps full-duplex or rely on auto-negotiation supported by the device.
• Run a basic connectivity test (ping, traceroute, or a throughput test) to confirm the link is active and stable. Monitor the link quality and error counters to ensure a healthy connection.

Frequently asked questions

• What is 1000Base-LX? 1000Base-LX is a Gigabit Ethernet transceiver standard that uses a 1310 nm laser to support long-range links over single-mode fiber. It is commonly used to connect switches and routers across campuses or buildings, delivering reliable 1 Gbps performance over distances up to about 10 kilometers on SMF.
• Is this transceiver hot-swappable? Yes. The Cisco 1000Base-LX SFP is designed to be hot-swappable on supported Cisco switches. As with any hardware change, follow your device’s guidelines and best practices for maintenance windows and safety.
• What fiber type should I use? Use single-mode fiber (SMF) for the full 10 km range and optimal performance. While some LX modules may operate over certain multi-mode fiber types, performance and distance are best achieved on SMF with the correct fiber specification.
• Which Cisco switches are compatible? The transceiver is designed for Cisco Small Business and Cisco Small Business Pro Series switches. Always verify model compatibility and firmware requirements in your device’s documentation or Cisco’s compatibility matrix.
• What should I expect in terms of installation and maintenance? The module is designed for straightforward installation with plug-and-play operation. Regular maintenance includes keeping fiber connectors clean, inspecting for dust, and monitoring link health through the switch management interface to ensure ongoing reliability.