Description

Cisco GLC-SX-MMD SFP 1000Base-SX Short Haul Multimode Module with DOM Support

The Cisco GLC-SX-MMD is a high-performance module designed for enterprise-grade network environments. Indeed, as part of Cisco’s comprehensive portfolio, this module ensures robust connectivity and significantly enhances network reliability.

Delving into its Key Features and Functionality:

Firstly, concerning Gigabit Ethernet (1 Gbps) Connectivity, the GLC-SX-MMD provides a stable 1 Gigabit per second (1 Gbps) link, thereby making it suitable for a variety of high-bandwidth networking needs, including, for instance, server-to-switch connections, inter-switch links, and backbone connectivity within a localized area.

Furthermore, its Distance Capabilities are noteworthy, since the maximum transmission distance varies depending on the type of multimode fiber used:

• For example, it reaches 220 meters (approx. 722 feet) over legacy 62.5/125 µm (FDDI-grade or OM1) multimode fiber.
• Conversely, it extends to 275 meters (approx. 902 feet) over 62.5/125 µm (OM1) multimode fiber with 200 MHz*Km modal bandwidth.
• Moreover, it achieves 550 meters (approx. 1804 feet) over 50/125 µm (OM2) multimode fiber.
• Finally, it can reach up to 1 kilometer (approx. 3281 feet) over laser-optimized 50/125 µm (OM3, OM4, or OM5) multimode fiber.

Additionally, Digital Optical Monitoring (DOM) is a crucial feature, as the “D” in GLC-SX-MMD indicates its support for this capability (also known as DDM – Digital Diagnostics Monitoring). This, importantly, allows network administrators to monitor various real-time parameters of the SFP module, such as transmit and receive optical power, temperature, supply voltage, and laser bias current, thereby enabling proactive network management.

Moreover, it utilizes a Dual LC Connector. This is to say, it employs a dual LC/PC connector, a standard and compact fiber optic connector type that subsequently allows for high-density cabling in networking equipment.

Regarding Typical Applications:

Therefore, the GLC-SX-MMD is commonly deployed in:

• For instance, Enterprise LANs for connecting desktop switches to distribution layers or backbone switches within a building.
• Similarly, Data Centers for providing high-speed links between servers, storage devices, and top-of-rack switches.
• Furthermore, Intra-building Connectivity, making it ideal for establishing Gigabit Ethernet links between different floors or departments within the same building where multimode fiber infrastructure is present.
• Lastly, Short-reach Campus Networks for connecting buildings that are relatively close to each other.