Description

The GLC-SX-MMD is a Cisco branded SFP (Small Form-factor Pluggable) transceiver module designed for short-range optical communication, typically used in Gigabit Ethernet (1 Gbps) applications. It is a highly reliable, cost-effective solution for short-distance fiber optic connections, operating on 850 nm wavelength and designed to work over multimode fiber (MMF). As part of Cisco’s Platinum series, it signifies a high level of performance, reliability, and compatibility with Cisco networking equipment.

Detailed Description:

Model: GLC-SX-MMD

• Form Factor: SFP (Small Form-factor Pluggable)
  • The SFP module is compact and hot-swappable, allowing network administrators to install or replace the module without powering down the equipment. This plug-and-play flexibility makes it a versatile and easy-to-use solution for network expansion or upgrades.

Data Rate:

• 1 Gbps (Gigabit Ethernet): The GLC-SX-MMD supports Gigabit Ethernet transmission speeds, ensuring efficient data transfer in high-demand networking environments. It is ideal for applications requiring high bandwidth and low latency over short distances.

Wavelength:

• 850 nm: The GLC-SX-MMD transceiver operates at a 850 nm wavelength, which is typical for multimode fiber (MMF) communication. The 850 nm wavelength offers a balance between performance and cost, making it suitable for high-speed connections over shorter distances compared to single-mode fiber solutions.

Range:

• The module is optimized for short-range communications over multimode fiber:
  • 550 meters maximum range on multimode fiber, ensuring reliable communication within local area networks (LANs) or data centers where the distance between devices is typically short.
  • The reach of the transceiver depends on the fiber type and quality, with the GLC-SX-MMD performing optimally in distances up to 550 meters using OM2 or better multimode fiber.

Connector Type:

• The GLC-SX-MMD uses an LC duplex connector, a compact and efficient option for high-density installations. The LC connector allows for a two-way fiber connection, optimizing space and offering superior performance for high-speed communications.

Compatibility:

• The GLC-SX-MMD is fully compatible with Cisco networking equipment that supports SFP modules, such as Cisco Catalyst, 2960, and 3000 series switches, routers, and other devices. It is designed to seamlessly integrate with Cisco’s IOS and NX-OS operating systems, providing reliable and consistent network connectivity.

Power Consumption:

• The module is energy-efficient, typically consuming less than 1W of power. This low power usage contributes to overall energy savings in large-scale network deployments where numerous modules are installed across devices.

Hot-swappable:

• The GLC-SX-MMD is hot-swappable, meaning it can be installed, replaced, or upgraded without requiring a system reboot. This feature allows for minimal downtime and supports the flexibility of ongoing maintenance and network upgrades.

Cisco Digital Optical Monitoring (DOM):

• The GLC-SX-MMD supports Cisco’s DOM functionality, enabling real-time monitoring of key performance indicators such as optical power, voltage, and temperature. This feature helps network administrators proactively manage network performance and troubleshoot issues before they affect the network.

Applications:

• Enterprise Networks: The GLC-SX-MMD is commonly used in LANs (Local Area Networks) where high-speed Ethernet connections are needed for devices in close proximity. It is often used in campus networks, office buildings, and data centers.
• Data Centers: The module facilitates high-speed interconnects between servers, storage devices, and network switches within a data center environment.
• Telecommunications: It can be used for short-range interconnection in telecom networks, offering reliable and high-speed data transmission.
• Industrial and Commercial Networks: Perfect for environments where short-range fiber optic connectivity is required, such as factory floors, educational campuses, or healthcare facilities.

Key Features Summary:

• Data Rate: 1 Gbps (Gigabit Ethernet)
• Wavelength: 850 nm for multimode fiber communication
• Range: Up to 550 meters on multimode fiber (OM2 or better)
• Connector: LC duplex for multimode fiber
• Power Consumption: Low, typically less than 1W
• Hot-swappable: Can be installed or replaced without downtime
• DOM Support: Real-time monitoring of optical power, temperature, and voltage
• Application: Ideal for enterprise networks, data centers, and short-range telecommunications.

Conclusion:

The GLC-SX-MMD is a reliable and cost-effective SFP transceiver solution for Gigabit Ethernet applications that require short-range communication over multimode fiber. With support for 850 nm wavelength, a range of up to 550 meters, and LC duplex connectors, it is perfect for enterprise and data center environments where high-speed connectivity is essential for interconnecting devices over relatively short distances. The module’s low power consumption, hot-swappable design, and DOM capabilities make it a versatile and efficient solution for expanding or upgrading network infrastructure.