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  • 24 10/100/1000BASE-T Auto-negotiating, Auto-MDI/MDI-X ports with 802.3x Flow Control

Combo Ports
  • 2 (SFP)

Optional SFP Modules
  • DEM-310GT: 1000BASE-LX SFP Module, up to 10Km
  • DEM-311GT: 1000BASE-SX SFP Module, up to 550m

LED Indicators
  • Per device: Power/CPU
  • Per 10/100/1000BASE-T port: Link/Act, 100/1000Mbps
  • Per SFP slot: Link/Act, 1000Mbps


Switch Capacity
  • 48Gbps

Packet Fowarding Rate
  • 35.7Mpps

MAC Address Table Size
  • 8K

MAC Address Update
  • Up to 256 static MAC entries
  • Enable/disable auto-learning of MAC addresses

Packet Buffer
  • 512KB

Jumbo Frame
  • 10,240 Bytes

Physical & Environmental

Power Consumption
  • 31.2W

Power Input
  • 101 to 240 VAC 50/60Hz internal universal power supply

Heat Dissipation
  • 106.45BTU/hr

Acoustic Value
  • 0 dB

  • Operating: 32° to 104°F (0° to 40°C)
  • Storage: 14° to 158° F (-10° to 70° C)

  • Operating: 10% to 90% Non-condensing
  • Storage: 5% to 90% Non-condensing

Dimensions (W x D x H)
  • 17.3in x 8.2in x 1.7in (440mm x 210mm x 44mm)

  • 19-inch standard rackmounting width, 1U height

  • 6.2 lbs (2.80 kg)

  • FCC Class A, CE Class A, VCCI Class A

  • Yes

  • 215,976hrs

  • cUL, LVD

Software Specifications
  • IEEE 802.3 10BASE-T Ethernet
  • IEEE 802.3u 100BASE-TX Fast Ethernet
  • IEEE 802.3ab 1000BASE-T Gigabit Ethernet
  • IEEE 802.3z Gigabit Ethernet (fiber) ANSI/IEEE 802.3
  • IEEE 802.3x Flow Control
  • Nway Auto-Negotiation
  • 802.3af Power over Ethernet

L2 Features
  • IGMP v1/2 Snooping: supports 64 multicast groups
  • 802.1D Spanning Tree
  • Static Port Trunk (Link Aggregation): up to 6 groups per device, up to 8 ports per group

Green Ethernet
  • Power Saving Mode (as compared with previous models)
  • Full Load/Max. Power Consumption: 11%
  • Link Down Power Consumption: 23%

  • 802.1Q VLAN (VLAN Tagging)
  • Up to 256 static VLAN groups
  • Management VLAN
  • Asymmetric VLAN

Quality of Service (QoS)
  • 802.1p Priority Queues
  • Up to 4 queues per port
  • DSCP-based QoS
  • Supports WRR or Strict Mode in Queue Handling

  • 802.1X Port-based Access Control
  • Broadcast Storm Control
  • D-Link® Safeguard Engine™
  • Trusted Host
  • Cable Diagnostics function

  • Web-based GUI
  • SNMP v1 support
  • DHCP Client
  • Trap setting for destination IP, system events, fiber port events, twisted-pair port events
  • Port Access Control
  • Web-based: Configuration backup/restoration
  • Web-based: Firmware backup/upload
  • Firmware upgrade using SmartConsole Utility
  • System Reboot using web-based interface
  • SmartConsole Utility

  • RFC 1213 MIB-II
  • D-Link Enterprise Private MIB

All references to speed are for comparison purposes only. Product specifications, size and shape are subject to change without notice, and actual product appearance may differ from that depicted herein.