Cisco GLC-SX-MMD – 1000BASE-SX Gigabit SFP Transceiver Module (MMF, 850nm, DOM)

The Cisco GLC-SX-MMD is a high-performance Gigabit Ethernet SFP transceiver designed for short-range fiber connectivity using multi-mode fiber (MMF). Operating at 850 nm, it provides reliable, high-speed network connections for enterprise LANs, data centers, and campus networks. The module also supports Digital Optical Monitoring (DOM) for real-time diagnostics, ensuring improved visibility and network reliability.

Key Features

⚡ High-Speed Gigabit Fiber Connectivity

• Supports 1 Gbps (1000BASE-SX) Ethernet

• Ideal for short-distance fiber connections within buildings

• Delivers stable, low-latency performance

🌐 Multi-Mode Fiber (MMF) Support

• Optimized for multi-mode fiber (OM2/OM3/OM4)

• Maximum distance:

  • Up to 550 m on OM2/OM3/OM4 MMF

  • Up to 220 m on standard MMF

• Uses LC duplex connector

🔧 Digital Optical Monitoring (DOM)

• Real-time monitoring of:

  • Temperature

  • Optical output power

  • Optical input power

  • Laser bias current

  • Transceiver supply voltage

• Enhances troubleshooting and performance tuning

🔌 Hot-Swappable SFP Module

• Plug-and-play installation without powering down devices

• Compatible with many Cisco switches, routers, and controllers

🛡 Standards-Based and Reliable

• Complies with IEEE 802.3z and SFP MSA standards

• Low power consumption

• Fully tested for interoperability and durability

Technical Specifications

Applications

• Enterprise LAN uplinks

• Data center fiber interconnects

• Campus network short-range fiber links

• Server-to-switch and switch-to-switch Gigabit connections

Delivery & Support

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