Cisco GLC-SX-M-M-D SFP Transceiver | 1000BASE-SX 850nm MMF LC Optical Module

The Cisco GLC-SX-M-M-D is a high-performance 1000BASE-SX Small Form-Factor Pluggable (SFP) transceiver designed for Gigabit Ethernet applications over multimode fiber (MMF). Operating at an 850nm wavelength and utilizing a duplex LC connector, this hot-swappable optical module delivers reliable 1Gbps connectivity for enterprise networks, campus infrastructures, and data center environments.

Supporting transmission distances of up to 550 meters over multimode fiber, the GLC-SX-M-M-D provides a cost-effective solution for short-range optical networking. The module also supports Digital Optical Monitoring (DOM), allowing network administrators to monitor critical operating parameters such as temperature, voltage, transmit power, and receive power in real time.

Designed to meet Cisco quality standards, the GLC-SX-M-M-D offers excellent interoperability with Cisco switches and routers equipped with Gigabit SFP ports, ensuring stable and efficient network performance.

Figure 1 shows the front panel of GLC-SX-M-M-D=.

• Supports IEEE 802.3z 1000BASE-SX Gigabit Ethernet standard
• 1.25Gbps data transmission rate
• 850nm VCSEL laser technology
• Duplex LC optical interface
• Up to 550m transmission over multimode fiber
• Digital Optical Monitoring (DOM) support
• Hot-swappable SFP form factor
• Low power consumption
• High reliability and stability
• Compatible with a wide range of Cisco networking devices

The Cisco GLC-SX-M-M-D is widely used in:

• Enterprise LAN Networks
• Campus Network Deployments
• Data Center Connectivity
• Gigabit Ethernet Backbone Networks
• Aggregation Layer Connections
• Server-to-Switch Fiber Links
• Network Expansion Projects
• Cisco Switch and Router Upgrades

The GLC-SX-M-M-D provides stable 1Gbps fiber connectivity, making it ideal for organizations seeking dependable network performance and efficient data transmission.

Compared with long-distance optical modules, the GLC-SX-M-M-D offers excellent performance for short-range deployments while maintaining lower overall infrastructure costs.

Built-in DOM functionality helps network administrators proactively monitor module health and troubleshoot potential issues before they affect network performance.

The hot-swappable design enables installation or replacement without interrupting network operations, reducing maintenance downtime.

Choose GLC-SX-M-M-D for cost-effective multimode fiber deployments within buildings or campuses.

Choose GLC-LH-SMD when longer transmission distances are required over single-mode fiber.

The GLC-SX-M-M-D supports transmission distances of up to 550 meters over multimode fiber, depending on the fiber grade and network environment.

Yes. The module supports DOM functionality, allowing users to monitor temperature, voltage, transmit power, and receive power in real time.

The module is designed for multimode fiber (MMF) networks and uses an LC duplex connector.

Yes. The module can be installed or removed without powering down the host device.

GLC-SX-M-M-D operates at 850nm and supports up to 550m over multimode fiber, while GLC-LH-SMD operates at 1310nm and supports up to 10km over single-mode fiber.

The GLC-SX-M-M-D is compatible with a wide range of Cisco Catalyst switches, Cisco Nexus switches, Cisco routers, and other networking equipment equipped with standard Gigabit SFP ports.

When purchasing from Lonrise Equipment, customers receive:

All products are sourced from authorized channels and undergo strict quality verification.

Our experienced engineers provide compatibility verification, deployment recommendations, and technical consultation.

Flexible logistics solutions are available through DHL, FedEx, UPS, and international freight services.

Every Cisco GLC-SX-M-M-D transceiver includes a comprehensive 1-year warranty for added peace of mind.

Our dedicated support team responds quickly to inquiries regarding product selection, order status, and after-sales assistance.

• Cisco GLC-LH-SMD 1000BASE-LX/LH SFP
• Cisco GLC-T Copper SFP Module
• Cisco GLC-ZX-SM Long-Reach SFP
• Cisco Catalyst 9200 Series Switches
• Cisco Catalyst 9300 Series Switches
• Cisco Nexus Series Switches

The Cisco GLC-SX-M-M-D is a trusted Gigabit Ethernet SFP transceiver designed for reliable short-range fiber networking. Featuring 850nm multimode fiber support, up to 550m transmission distance, Digital Optical Monitoring, and seamless Cisco compatibility, it is an ideal solution for enterprise, campus, and data center deployments. With fast delivery, professional technical support, and a 1-year warranty, Lonrise Equipment provides a dependable source for your Cisco networking requirements.