Cisco SFP-10G-SR, 10GBASE-SR SFP Module, Cisco SFP transceiver

Cisco SFP‑10G‑SR is a high‑performance, hot‑swappable SFP+ (Small Form‑factor Pluggable Plus) transceiver module designed for 10 Gigabit Ethernet connectivity over multimode fibre (MMF). Operating at a nominal wavelength of 850 nm, this module supports the IEEE 802.3ae 10GBASE‑SR standard and enables cost‑effective fibre links within enterprise, data‑centre and campus network environments. With support for link spans up to ~300 m on OM3 and ~400 m on OM4 multimode fibre, digital‑optical monitoring (DOM) capability and Cisco‑certified compatibility, this module offers a future‑proof solution for high‑speed access or aggregation links.

Product Features

Hot‑Swappable SFP+ Form Factor

The SFP‑10G‑SR fits into industry‑standard SFP+ ports and allows plug‑and‑play installation or replacement without powering down the network device, minimising disruption.

Multimode‑Fibre (MMF) Support at 850 nm

This transceiver is optimized for multimode fibre cabling, using an 850 nm laser (VCSEL) transmitter. On OM3 multimode fibre it can reach up to 300 m, and on OM4 up to 400 m under ideal conditions.

Digital Optical Monitoring (DOM)

Supports DOM (also known as DDM) enabling real‑time diagnostics of operating parameters such as optical output power, receive power, temperature and supply voltage — helping maintain link health and troubleshoot proactively.

Broad Platform Compatibility

Designed and certified for use in Cisco switches, routers and other equipment that feature SFP+ ports. Ensures reliable interoperability in enterprise networking environments.

Product Specifications

• Form factor: SFP+ (Small Form‑factor Pluggable Plus)
• Standard compliance: IEEE 802.3ae 10GBASE‑SR
• Wavelength: ~850 nm nominal
• Media type: Multimode fibre (MMF)
• Connector type: Duplex LC (LC/UPC) typical for MMF application
• Maximum link distances (typical):
  • OM3 fibre: up to ~300 m
  • OM4 fibre: up to ~400 m
• Digital Optical Monitoring: supported
• Operating temperature range: standard commercial (0 °C to ~70 °C) in typical variants

Deployment & Usage Tips

• Ensure the host device (switch or router) supports the SFP‑10G‑SR module or is listed in the Cisco compatibility matrix to avoid mismatch or disabled ports.
• Use appropriate MMF cabling and check fibre type (for example, OM3 or OM4) to ensure the expected link distance is achievable; poor quality patch cords or connectors may reduce performance.
• Clean connectors and maintain proper fibre cable routing to reduce optical loss and ensure reliability over time.
• Monitor the module via DOM/diagnostics for metrics like transmit power, receive power, temperature and voltage — useful for proactive maintenance.
• When upgrading to longer distances or single‑mode fibre, consider the LR or ER variants (10GBASE‑LR or 10GBASE‑ER) as the SR model is designed for shorter multimode runs.