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DFE-520TX Ethernet Adapter Card
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Introduction
Thank you for choosing the D-Link DFE-520TX, the value leader among Fast Ethernet adapters
for PCI Bus personal computers. This introduction gives a general description of the newer
networking technologies found on the DFE-520TX.
The DFE-520TX provides IEEE 802.3x Flow Control Enhancements, which are needed for a
network adapter to function with a switch. In full-duplex mode, the MAC implements the PAUSE
control function. This means when a switch is connected in full-duplex mode and it senses that
its buffer will overflow in the near future, the switch will transmit one standard Ethernet packet
that causes the DFE-520TX to pause for a period, thus avoiding internal buffer overflow and
packet loss.
System Requirements
Before installing the DFE-520TX, check your system for the following minimum configuration
requirements.
One of the following slot types:
• An open PCI bus master slot, 32-bit, operating at 33MHz.
32 MB of System Memory
150 MHz processor, or faster
The latest BIOS for your computer
One of the following types of twisted-pair network cabling:
• Category 5 or better for 100Mbps
• Category 3, 5 or better for 10Mbps
Features
Designed for versatility and performance, the DFE-520TX Network Adapter provides the following:
• Operability in 32-bit, 33 MHz slot servers and workstations
• Universal Bus support 3.3V
• Compliance with IEEE 802.3u Fast Ethernet standards and IEEE 802.3 Ethernet standards.
• Plug-and-Play installation
• Supports half and full duplex at 10Mbps, half and full-duplex at 100Mbps.
• Supports for full-duplex double network throughput
• Supports 802.3x flow control
• Supports ACPI 2.0
• One built-in RJ-45 connector
• Auto-negotiation to the highest available speed