D-Link DES-1228 Product Manual - Page 49

Appendix B - Technical Specifications D-Link Web Smart Switch User Manual Appendix B - Technical Specifications Hardware Specifications Key Components / Performance Switching Capacity: - DES-1228: 12.8Gbps - DES-1228P: 12.8Gbps - DES-1252: 17.6Gbps Max. Forwarding Rate - DES-1228: 9.52Mpps - DES-1228P: 9.52Mpps - DES-1252: 13.09Mpps Forwarding Mode: Store and Forward Packet Buffer memory: 128K Bytes SDRAM for CPU: 8M Bytes Flash Memory: 2M Bytes Port Functions 24 or 48 10/100BaseT ports compliant with the following standards: - IEEE 802.3 - IEEE 802.3u - Supports Full-Duplex operations 4 1000Base-T ports compliant with the following standards: - IEEE 802.3 - IEEE 802.3u - IEEE 802.3ab - Supports Full-Duplex operations 2 combo SFP ports compliant with the following standards: - IEEE 802.3z - Supports Full-Duplex operations SFP transceivers supported - DEM-310GT (1000BASE-LX) - DEM-311GT (1000BASE-SX) - DEM-314GT (1000BASE-LH) - DEM-315GT (1000BASE-ZX) - DEM-312GT2 (1000BASE-SX) - DEM-210 (100BASE-FX) - DEM-211 (100BASE-FX) WDM Transceivers Supported: - DEM-330T (TX-1550/RX-1310nm) - DEM-330R (TX-1310/RX-1550nm) - DEM-331T (TX-1550/RX-1310nm) - DEM-331R (TX-1310/RX-1550nm) Power over Ethernet (DES-1228P Only) PoE Capable Ports: Port 1-24 Supplies power up to 15.4W per port, compliant with IEEE802.3af standards Power Budget: 170W max Auto discovery Auto disable port if the port current is over 350mA Following the standard classification 0(15.4W), 1(4.0W), 2(7.0W), 3(15.4W), 4(15.4W) Physical & Environment AC input, 100~240 VAC, 50/60Hz, internal universal power supply Operation Temperature 0~40°C Storage Temperature -10~70°C Operation Humidity: 10%~90% RH Storage Humidity: 5%~90% RH Emission (EMI) Certifications FCC class A CE Class A VCCI Class A Safety Certifications cUL, UL Features L2 Features Supports up to 8K MAC address IGMP snooping: supports 64 multicast group 802.1D Spanning Tree Port trunk (Link Aggregation): up to 6 groups per device, up to 8 ports per group Port mirroring VLAN 802.1Q VLAN standard (VLAN Tagging) Up to 256 static VLAN groups QoS (Quality of Service) 802.1p Priority Queues standard Up to 4 queues per port Supports WRR mode in queue handling Security 802.1X port-based access control Broadcast Storm Control D-Link Safeguard Engine Management Web-based GUI or SmartConsole Utility SNMP support DHCP client 1