Product Description

Cisco GLC-SX-MMD 1000Base-SX SFP

The Cisco  Gigabit Ethernet optical transceiver designed to connect compatible Cisco networking equipment to multimode fiber (MMF) networks. It is a practical solution for enterprise LANs, data centers, campus networks and other Gigabit Ethernet fiber connections.

Cisco lists the GLC-SX-MMD as a 1000BASE-SX short-wavelength SFP with Digital Optical Monitoring (DOM). Cisco’s transceiver documentation identifies the module as 1000BASE-SX, 850-nm MMF.

 Key Features

• 1000BASE-SX Gigabit Ethernet
• 850 nm optical wavelength
• Multimode fiber (MMF)
• Digital Optical Monitoring (DOM) support
• Gigabit Ethernet connectivity
• SFP hot-swappable form factor
• Designed for compatible Cisco networking equipment
• Up to 550 m reach in supported MMF applications
• Suitable for enterprise and data center fiber networks

1000BASE-SX Multimode Fiber

The Cisco is designed for short-wavelength Gigabit Ethernet connections over multimode fiber.

• Cisco switch-to-switch connections
• Server-to-switch fiber connectivity
• Enterprise LAN infrastructure
• Data center networking
• Campus network links
• Network aggregation
• Fiber-based Gigabit Ethernet connections

The 1000BASE-SX standard is intended for multimode fiber and uses an 850 nm optical wavelength.

DOM Support

The Digital Optical Monitoring (DOM). Cisco distinguishes the GLC-SX-MMD from the GLC-SX-MM  as the 1000BASE-SX version with DOM support.

DOM can provide optical diagnostics and operating information on compatible Cisco equipment, helping network administrators monitor supported transceiver parameters.