Cisco Systems Cisco GLC‑SX‑MMD 1000BASE‑SX SFP Transceiver Module (MMF, 850 nm, DOM)

The Cisco GLC‑SX‑MMD 1000BASE‑SX SFP Transceiver Module is a high‑performance optical transceiver designed to deliver reliable Gigabit Ethernet connectivity over multimode fiber (MMF) networks commonly used in enterprise, campus, and data center environments in Kenya. Operating at an 850 nm wavelength, this SFP module supports 1000BASE‑SX standards for short‑reach fiber links, enabling high‑speed uplinks and inter‑switch connections. With Digital Optical Monitoring (DOM) support for real‑time diagnostics and a hot‑swappable SFP form factor, the GLC‑SX‑MMD simplifies fiber deployment and maintenance while ensuring stable and scalable network performance.

Product Features

1000BASE‑SX Multimode Fiber Support

Supports IEEE 802.3z 1000BASE‑SX standards for Gigabit Ethernet over multimode fiber at 850 nm wavelength, delivering high‑speed data transmission for short‑distance fiber links.

Multimode Fiber Compatibility

Designed for use with common multimode fiber types (50/125 µm or 62.5/125 µm), enabling flexible deployment within enterprise LANs, campus backbones, and server room connections.

Digital Optical Monitoring (DOM)

Includes DOM support for real‑time monitoring of transmit and receive optical power, temperature, and voltage, helping network administrators diagnose issues and maintain optimal fiber link performance.

Hot‑Swappable SFP Form Factor

Small Form‑Factor Pluggable (SFP) design allows installation and replacement without powering down the host switch or router, minimizing network disruption during maintenance or upgrades.

Broad Cisco Compatibility

Compatible with a wide range of Cisco switches and routers that support 1G SFP interfaces, enabling seamless integration into existing fiber infrastructures and future expansion projects.

High‑Speed Gigabit Connectivity

Delivers up to 1 Gbps data rate over multimode fiber, suitable for high‑performance uplinks, inter‑rack connections, and edge‑to‑core network links.

Product Specifications

• Brand: Cisco
• Model: GLC‑SX‑MMD
• Product Type: 1000BASE‑SX SFP Optical Transceiver
• Supported Standards: IEEE 802.3z (1000BASE‑SX)
• Fiber Type: Multimode Fiber (MMF)
• Wavelength: 850 nm
• Connector: LC duplex
• Data Rate: Up to 1 Gbps
• Maximum Reach: Up to ~550 meters (varies by fiber type and quality)
• Digital Optical Monitoring: Supported
• Hot‑Swappable: Yes
• Duplex Mode: Full‑duplex
• Deployment Environment: Indoor LAN and campus fiber networks
• Recommended Use: Gigabit uplinks, inter‑switch fiber links, data center connections
• Country Relevance: Ideal for short‑reach fiber networking deployments in Kenya

The Cisco GLC‑SX‑MMD 1000BASE‑SX SFP Transceiver Module provides flexible, high‑speed fiber connectivity with diagnostic insight and hot‑swappable convenience, making it a dependable choice for enhancing Gigabit network infrastructures in Kenya.