D-Link 1000Base-SX Gigabit Multi-Mode Fiber SFP Transceiver

Overview

The D-Link DEM-311GT is a Small Form Factor Pluggable (SFP) transceiver designed to provide a fast, fiber-based Gigabit Ethernet uplink for switches or routers with an open SFP slot. It supports the 1000Base-SX standard, delivering 1 Gbps full-duplex data transfer over multi-mode fiber. This transceiver is ideal for moving large files, backing up servers, or streaming high-bandwidth applications without network congestion.

Equipped with an LC connector, it supports transmission distances up to 220 meters on 62.5 micron fiber and up to 550 meters on 50 micron fiber. The metal housing protects the optics from electromagnetic interference and adds physical durability. Its hot-pluggable design allows network administrators to install or replace the module without shutting down equipment, ensuring continuous uptime in demanding environments.

Key features

• Provides a reliable 1 Gbps full-duplex connection over multi-mode fiber for high-speed data transfer
• Supports two common fiber types with distances up to 550 meters, accommodating various network layouts
• LC fiber connector ensures compatibility with widely used cabling systems and simplifies installation
• Hot-pluggable design enables easy upgrades or replacements without interrupting network operations
• Metal housing reduces electromagnetic interference, enhancing signal integrity and device longevity
• Backed by a two-year warranty and access to D-Link technical support for added peace of mind

Key specs

• Standard: 1000Base-SX Gigabit Ethernet
• Data rate: 1 Gbps full-duplex
• Fiber type: Multi-mode fiber
• Maximum distance: 220 meters on 62.5 micron fiber, 550 meters on 50 micron fiber
• Connector type: LC fiber connector
• Form factor: Small Form Factor Pluggable (SFP)
• Housing: Metal for EMI shielding and durability
• Hot-pluggable: Yes
• Warranty: Two years

Connectivity and compatibility

This transceiver fits into any switch or router with an open SFP slot, making it a flexible choice for expanding fiber links in various network setups. Its LC connector supports standard multi-mode fiber cabling, which is common in campus networks, server rooms, and branch offices. The module’s compatibility with both 50 micron and 62.5 micron fiber types allows it to integrate smoothly into existing infrastructure without requiring specialized cables.

Ideal uses and environments

The DEM-311GT is well suited to environments that require reliable, high-speed fiber connections with minimal downtime. It works well in campus networks where multiple buildings need to be linked, small business server rooms that handle large data transfers, and branch offices looking to extend fiber connections between closets or racks. Its hot-pluggable nature and durable design make it a strong choice for setups that demand continuous operation and easy maintenance.