D-Link DES-1024R+

Key Features

• 1 expansion slot for 2 optional 100Mbps fiber ports
• Full/half duplex support for each port
• Auto-learning of network configuration
• IEEE 802.3x flow control in full duplex mode for protection against data loss
• Back pressure in half duplex mode
• Auto-adjustment of MDI/MDIX cross over for each port
• Auto-correction of twisted-pair polarity reverse
• RAM buffer dynamically allocated for each port

Standards

• IEEE 802.3 10BASE-T Ethernet
• IEEE 802.3u 100BASE-TX Fast Ethernet
• IEEE 802.3u 100BASE-FX Fast Ethernet
• ANSI/IEEE 802.3 NWay auto-negotiation
• IEEE 802.3x Flow Control

Protocol

• CSMA/CD

Data Transfer Rates

• Ethernet:
  • 10Mbps (half duplex)
  • 20Mbps (full duplex)
• Fast Ethernet:
  • 100Mbps (half duplex)
  • 200Mbps (full duplex)

Topology

• Star

Network Cables

• 10BASE-T:
  • 2-pair UTP Cat. 3, 4, 5 (100 m)
  • EIA/TIA-568 100-ohm STP (100 m)
• 100BASE-TX:
  • 2-pair UTP Cat. 5 (100 m)
  • EIA/TIA-568 100-ohm STP (100 m)
• 100BASE-FX:
  • Multi-mode (62.5/125 um or 50/125 um fiber cabling with SC connector)

Number of Built-in Ports

• 10/100Mbps port x 24

Media Interface Exchange

• Auto-negotiation of MDI-II/MDI-X for all 10/100Mbps ports

Twisted-pair Rx Reverse Polarity

• Auto-correction

LED Report

• Per device:
  • Power
• Per 10/100Mbps port:
  • 100Mbps speeds
  • Link/activity

Transmission Method

• Store-and-forward

MAC Address Table

• 4K entries per device

Packet Filtering Rates

• Ethernet: 14,880 pps per port (half-duplex)
• Fast Ethernet: 148,810 pps per port (half-duplex)

RAM Buffer

• 256KB per 8 ports

Flow Control

• IEEE 802.3x flow control per 10/100Mbps port in full Duplex
• Back pressure per 10/100Mbps port in half duplex

AC Input

• 100 - 240 VAC, 50/60 Hz
• Internal universal power supply

Power Consumption

• 39 watts (max.)

Ventilation

• 12V - 0.09A DC fan x 1

Operating Temperature

• 0 - 50 C (32 - 122 F)

Storage Temperature

• -30 - 60 C (-22 - 140 F)

Humidity

• 5% - 95% non-condensing

Dimensions

• 441 x 207 x 44 mm (17.4 x 8.15 x 1.732 inches)
• 19-inch rack-mount width, 1 U height

Weight

• 2.65 kg (5.84 lb.)