The D-LINK DES-3624I is a 20-port managed Fast Ethernet switch delivering 10/100Mbps auto-negotiation across all ports with full and half-duplex support. Built for small to medium business networks, it combines wire-speed switching with enterprise-class management capabilities. The platform supports IEEE 802.3 and 802.3u standards, processing up to 148,800 packets per second per 100BASE-TX port with a 12K MAC address filtering table. VLAN segmentation and QoS prioritization enable traffic isolation and policy-based forwarding. Stackable architecture allows up to four units to operate as a single logical switch, with 3 modular expansion slots supporting optional 100BASE-FX fiber ports or 1000BASE-SX Gigabit modules. Console port (RS-232 DB-9) provides direct serial access, while web-based management and SNMP/RMON agents deliver remote monitoring and configuration. MDI/MDI-X auto-sensing on RJ-45 ports ensures flexible cabling. The 1U rack-mountable chassis fits standard 19-inch equipment racks.
## Technical Specifications
• **Standards:** IEEE 802.3 10BASE-T Ethernet, IEEE 802.3u 100BASE-TX Fast Ethernet
• **Protocol:** CSMA/CD
• **Packet Filtering/Forwarding:** 148,800 packets/second per 100BASE-TX port; 14,880 packets/second per 10BASE-T port
• **MAC Address Table:** 12K entries per device
• **Data Transfer Rates:** 10Mbps half-duplex/20Mbps full-duplex (Ethernet); 100Mbps half-duplex/200Mbps full-duplex (Fast Ethernet)
• **Port Count:** 20 x 10/100Mbps auto-negotiation; optional 2 x 100BASE-FX or 1000BASE-SX expansion ports
• **Expansion Slots:** 3 modular slots (1 installed, 2 available)
• **Console:** RS-232 DB-9 serial port
• **Flow Control:** Supported
## Key Features
• VLAN support for network segmentation and traffic isolation
• QoS prioritization for bandwidth management
• Stackable design (up to 4 units)
• MDI/MDI-X auto-sensing on RJ-45 ports
• SNMP and RMON management agents
• Web-based configuration interface
• Automatic MAC address learning
## Typical Applications
Small to medium-sized business networks requiring managed switching, VLAN-based segmentation, and non-blocking wire-speed performance across mixed 10 and 100Mbps endpoints.
## Compatibility & Integration
Supports standard Ethernet and Fast Ethernet infrastructure. Optional fiber modules (100BASE-FX) and Gigabit expansion cards enable heterogeneous network topologies. Serial console access and web management accommodate both command-line and GUI-based provisioning workflows.
