Cisco 1000BASE-LX Gigabit Ethernet SFP Module

The Cisco 1000BASE-LX Gigabit Ethernet SFP Module is a high-performance, hot-swappable transceiver designed to deliver reliable, scalable connectivity for enterprise networks, data centers, and campus backbones. This mini-GBIC transceiver supports 1000Base-LX technology, enabling a true 1 Gbps data transfer over optical fiber with long-range reach. Whether you’re upgrading an aging uplink, extending your fiber backbone, or consolidating fiber pathways across a campus, this SFP module provides Cisco-grade quality, interoperability, and seamless integration with Cisco switches, routers, and a broad ecosystem of SFP-compatible devices.

• High-speed Gigabit Ethernet on fiber: Delivers a true 1,000 Mbps data rate over optical fiber, enabling fast uplinks, server connections, and storage area networks with low latency and predictable performance.
• Long-reach single-mode fiber support: Optimized for single-mode fiber with a wavelength around 1310 nm, giving reach up to 10 kilometers (6.2 miles) for campus, data-center interconnects, and WAN links.
• Compact, hot-swappable SFP (mini-GBIC): Small form-factor module that can be inserted or removed with minimal downtime, compatible with most Cisco devices and a wide range of SFP-enabled equipment.
• Digital Optical Monitoring (DOM) and manageability: Built-in DOM capabilities provide real-time visibility into transmit power, received power, temperature, and module health for proactive network management and troubleshooting.
• MSA-compliant and Cisco-ecosystem ready: Conforms to SFP Multi-Source Agreement standards and is designed for seamless operation with Cisco switches, routers, and a broad ecosystem of compatible devices, ensuring easy deployment and reliable performance.

Technical Details of Cisco 1000BASE-LX Gigabit Ethernet SFP Module

• Specifications pulled from the "specifications" section of the product on ec.synnex.com using the UPC or SKU reference.

How to install Cisco 1000BASE-LX Gigabit Ethernet SFP Module

• Power down the device if your network hardware requires a non-hot-swappable installation, or confirm that your Cisco switch/router supports hot-swapping of SFP modules before proceeding.
• Identify the correct SFP port on your Cisco device. Locate the empty SFP slot, ensuring the slot aligns with the module’s orientation and the latch mechanism.
• Carefully insert the SFP module into the port until it seats securely. You should feel a firm click when it is properly locked in place; avoid applying excessive force.
• Connect a clean single-mode fiber optic cable with LC duplex connectors to the module. Ensure correct polarity and that the fiber is terminated with proper connectors and polish (UPC or APC as required by your link design).
• Power on the device (if it was powered down) and verify the link status using the device LEDs or your network management tool. Confirm the interface negotiates to 1 Gbps and that the link is up as expected.
• Optionally enable Digital Optical Monitoring (DOM) or other transceiver health features if supported by your platform to monitor transmit power, received power, temperature, and overall module health for proactive maintenance.

Frequently asked questions

• What is the Cisco 1000BASE-LX SFP Module? It is a small, hot-swappable transceiver that enables 1 Gbps Ethernet over single-mode fiber, designed for use in Cisco networking equipment and compatible SFP-enabled devices following the SFP/Mini-GBIC standard.
• What type of fiber does it use? It operates over single-mode fiber (SMF) with a wavelength around 1310 nm, optimized for longer distances compared to multimode solutions.
• What is the maximum reach? Typical deployments support up to 10 kilometers on standard single-mode fiber, making it suitable for campus backbones and WAN links.
• Is it hot-swappable? Yes. The SFP module is designed to be hot-swapped on compatible Cisco devices, minimizing downtime during upgrades or maintenance.
• How do I verify the module is functioning correctly? Use the device’s CLI or management interface to check the interface status, link speed (1 Gbps), and transceiver health indicators. If available, enable DOM to monitor power levels and temperature in real time.