TP-Link Omada 1000-Base-SX MMF Mini GBIC Module (SM311LM)

The TP-Link Omada SM311LM is a high-performance 1000Base-SX multi-mode Mini GBIC (SFP) module designed to extend network connectivity over fiber optic cabling. Engineered for compatibility with SFP-MSA standards, this module enables seamless integration with managed and smart switches, delivering reliable Gigabit speeds over distances of up to 550 meters. With hot-pluggable support and Digital Diagnostic Monitoring (DDM), it provides flexibility, real-time performance insights, and a cost-effective solution for expanding LAN infrastructure using fiber connections.

Product Features

High-Speed Gigabit Fiber Connectivity

The SM311LM supports data rates of up to 1.25Gbps, ensuring fast and stable data transmission over fiber networks for business and enterprise applications.

Extended Transmission Distance up to 550 Meters

Designed for multi-mode fiber, this module extends network reach up to 550 meters, making it ideal for campus networks, office buildings, and structured LAN environments.

Digital Diagnostic Monitoring for Performance Insight

Built-in DDM functionality allows real-time monitoring of key parameters such as voltage and optical output, helping maintain optimal network performance.

Hot-Pluggable Design for Flexible Deployment

The module supports hot swapping, enabling installation or replacement without powering down the network equipment, reducing downtime and improving operational efficiency.

Broad Compatibility with SFP-MSA Standard

Compliant with the Small Form Pluggable Multi-Source Agreement (SFP-MSA), the SM311LM ensures interoperability with a wide range of compatible networking devices.

Product Specifications

• Standards and Protocols: IEEE 802.3z, CSMA/CD, TCP/IP
• Wavelength: 850 nm
• Data Rate: 1.25 Gbps
• Port Type: LC duplex connector
• Fiber Type: 50/125 µm or 62.5/125 µm multi-mode fiber
• Maximum Cable Length: Up to 550 m (depending on fiber type)
• Cable Type: Multi-mode fiber
• Power Supply: 4V
• Dimensions: 55.4 × 13.7 × 12.9 mm (2.1 × 0.5 × 0.5 in)
• Hardware Features: Digital Diagnostic Monitoring (DDM), SFP-MSA compliance, hot swappable design
• Certification: FCC, CE
• Package Content: SM311LM module, installation guide
• Operating Temperature: 0°C to 70°C (32°F to 158°F)
• Storage Temperature: -40°C to 80°C (-40°F to 176°F)
• Operating Humidity: 10% to 90% non-condensing
• Storage Humidity: 5% to 90% non-condensing