D-Link DFE-680TXD manual

best baud rate, compression method, and error correction method. When the two modems have tested the phone-line quality and have switched to the combination of parameters which will provide the best data communication, then you are given the “ connect” message which signals the end of the inter-modem negotiation and the beginning of your intended communication with the remote computer.

Autonegotiation between devices within an Ethernet LAN is similar in concept, but much briefer. The two devices involved in the autonegotiation will be your DFE-680TXD and the switch or hub through which it is connected into the LAN. (Switches ordinarily provide for autonegotiation; traditional hubs do not.) The parameters to be negotiated between the DFE-680TXD and its supporting switch or hub include speed (100Mbps = Fast Ethernet, or 10Mbps = traditional Ethernet) and duplex mode (half-duplex or full- duplex).

Startup communication between the two devices occurs when both devices are operating, the cable connection between them is good, and the connected notebook PC's network software is loaded. As soon as those conditions are satisfied, the preparatory process of auto-negotiation between the DFE-680TXD and its supporting device begins and proceeds automatically.

If the supporting switch or hub has autonegotiation functionality, then it and the DFE- 680TXD exchange a series of messages in which each device signals its capabilities and listens for corresponding information about the other. The auto- negotiation process requires only a few milliseconds, and the two devices select the best communication parameters supported by both devices.

If the supporting device does not have autonegotiation functionality, then its monotone (single capability) message will be recognized by the DFE-680TXD’s autonegotiation facility, and the DFE-680TXD will simply switch to the one of its own capabilities which matches that of the supporting device.

Once the auto- negotiation is completed, then the line is ready, and it will provide an optimal data channel between the DFE-680TXD and the supporting device. The line will remain ready without further auto-negotiation action until the linkage is broken. Auto- negotiation then reoccurs at any time that the linkage is restored, again making the line ready for optimal data communications.

DFE-680TXD specifications

The D-Link DFE-680TXD is a robust Ethernet card designed to cater to the needs of both individual users and businesses requiring reliable networking solutions. This card is particularly recognized for its performance and compatibility with various operating systems, making it a versatile choice for different user environments.

One of the main features of the D-Link DFE-680TXD is its support for 10/100 Mbps Fast Ethernet, which enables efficient data transfer rates. This capability is crucial for demanding applications such as video streaming, online gaming, and large file transfers. The card automatically adjusts to the optimal speed of the connected network, ensuring seamless connectivity regardless of the environment.

The DFE-680TXD is equipped with a PCI interface that guarantees easy installation and integration into existing systems. This plug-and-play capability allows users to conveniently enhance their network performance without the need for extensive technical knowledge. The card is compatible with a variety of operating systems, including Windows and Linux, which broadens its appeal to a wide range of users.

In terms of technological features, the DFE-680TXD incorporates advanced power management capabilities that optimize energy consumption, benefiting both the environment and user costs. It also includes features like Wake-on-LAN support, which allows the network administrator to remotely power on systems, enabling efficient management and maintenance of network devices.

The card employs full-duplex transmission capabilities, effectively doubling the bandwidth utilization and reducing packet collisions. This makes the DFE-680TXD particularly advantageous for busy networks where traffic congestion can impede performance.

Additionally, the D-Link DFE-680TXD comes with a built-in diagnostic utility that aids in troubleshooting and network performance monitoring. This feature empowers users to manage their network health effectively, identifying potential issues before they escalate into significant problems.

Overall, the D-Link DFE-680TXD Ethernet card stands out as a reliable and efficient networking solution suitable for various scenarios, from home offices to small businesses. With its combination of performance, ease of installation, and advanced technologies, it remains a popular choice for users looking to enhance their network capabilities.