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

The Cisco 1000BASE-SX SFP Transceiver Module (GLC-SX-MMD) is a high-performance optical module designed for short-range Gigabit Ethernet connectivity over multimode fiber. Operating at an 850 nm wavelength, this hot-swappable SFP delivers reliable 1 Gbps data transmission for enterprise networks, data centers, and campus environments. With Digital Optical Monitoring support and extended temperature capabilities, the GLC-SX-MMD ensures enhanced visibility, performance, and durability in demanding networking conditions.

Product Features

Short-Range Multimode Fiber Connectivity

Optimized for high-speed data transmission over multimode fiber, making it ideal for intra-building and campus network connections.

Gigabit Ethernet Performance

Supports 1.25 Gbps data rates for consistent and efficient network throughput in enterprise environments.

Digital Optical Monitoring

Provides real-time monitoring of key parameters such as temperature, voltage, and optical power for proactive network management.

Hot-Swappable Design

Allows installation and removal without shutting down network devices, reducing downtime during maintenance or upgrades.

Extended Temperature Range

Operates reliably between -5°C and 85°C, suitable for both standard and demanding deployment environments.

Broad Device Compatibility

Compatible with a wide range of Cisco switches and routers, including Catalyst, Nexus, ASR, and ISR series platforms.

Efficient VCSEL Technology

Utilizes VCSEL laser technology for optimized performance and low power consumption in multimode fiber applications.

Product Specifications

• Interface Type: 1000BASE-SX
• Data Rate: 1.25 Gbps
• Wavelength: 850 nm (range 770 nm to 860 nm)
• Connector Type: Dual LC/PC
• Fiber Type: Multimode fiber (MMF)
• Maximum Distance:Up to 275 meters on OM1 (62.5/125 µm), Up to 550 meters on OM2 (50/125 µm), Up to 1000 meters on OM3 (50/125 µm laser-optimized)
• Transmit Power: -9.5 dBm to -3 dBm
• Receive Sensitivity: Typically less than -17 dBm
• Receiver Overload: 0 dBm
• Power Consumption: Typically less than 1W
• Voltage: 3.3V nominal (3.13V to 3.47V range)
• Form Factor: SFP (Small Form-Factor Pluggable)
• Dimensions (H x W x D): 0.3 x 0.5 x 2.2 inches (8.5 x 13.4 x 56.5 mm)
• Operating Temperature: -5°C to 85°C
• Storage Temperature: -40°C to 85°C
• MTBF: Approximately 3,381,761 hours
• DOM Support: Yes (SFF-8472 compliant)
• Laser Type: VCSEL
• Minimum Cable Distance: 2 meters (6.5 feet)
• Compliance: IEEE 802.3z, MSA, RoHS