Brand: D-Link
Category: Networking
Document Type: Manual
Language: EN
Manual for DFE-520TX
Uploaded: Sept. 12, 2025, 4:24 a.m.
Manual Publish Date: 2007-06-01
Warranty Information
The DFE-520TX hardware is warranted to be free from defects for one year from the date of original retail purchase.
The DFE-520TX is a 32-bit PCI Fast Ethernet Network Adapter. It supports IEEE 802.3x Flow Control for enhanced network performance, especially in full-duplex mode. The adapter is Plug-and-Play compatible and auto-negotiates to the highest available speed (10Mbps or 100Mbps). Installation involves inserting the card into a PCI slot and installing the drivers from the provided CD-ROM. Basic troubleshooting involves checking driver loading, cable grade, and hub compatibility. The adapter features a single Link/Activity LED indicator.
Troubleshooting and error codes
| Problem | Possible Cause | Solution |
|---|---|---|
| Adapter not functioning | Appropriate driver is not loaded | Load the correct driver. |
| Slow network speed or disconnections | Improper grade of network cable | Ensure Category 5 or better cable is used for 100Mbps connections. |
| Intermittent issues | Supporting hub is not properly qualified | Verify the compatibility of the network hub. |
| No link | Bad cable connection or faulty switch/hub | Check cable connections, try a different port on the switch/hub, or test with another cable. |
| Device conflict (e.g., Interrupt Number) | Plug-and-Play BIOS conflict | Access the CMOS Setup utility and manually assign a non-conflicting Interrupt Number. |