Installation Considerations

Wireless Basics (continued)

The D-Link Air DWL-122 lets you access your network, using a wireless connection, from virtually anywhere within its operating range. Keep in mind, however, that the number, thickness and location of walls, ceilings, or other objects that the wireless signals must pass through, may limit the range. Typical ranges vary depending on the types of materials and background RF (radio frequency) noise in your home or business. The key to maximizing wireless range is to follow these basic guidelines:

1.Keep the number of walls and ceilings between the DWL-122 and other network devices to a minimum - each wall or ceiling can reduce your D- Link wireless product’s range from 3-90 feet (1-30 meters.) Position your devices so that the number of walls or ceilings is minimized.

2.Be aware of the direct line between network devices. A wall that is 1.5 feet thick (.5 meters), at a 45-degree angle appears to be almost 3 feet (1 meter) thick. At a 2-degree angle it looks over 42 feet (14 meters) thick! Position devices so that the signal will travel straight through a wall or ceiling (instead of at an angle) for better reception.

3.Building Materials can impede the wireless signal - a solid metal door or aluminum studs may have a negative effect on range. Try to position wireless devices and computers with wireless adapters so that the signal passes through drywall or open doorways and not other materials.

4.Keep your product away (at least 3-6 feet or 1-2 meters) from electrical devices or appliances that generate extreme RF noise.

DWL-122 specifications

The D-Link DWL-122 is a wireless USB adapter that gained popularity due to its compact design, reliability, and robust performance. Designed for users who require a portable solution to connect their devices to wireless networks, this device offers considerable flexibility in enhancing connectivity.

One of the main features of the D-Link DWL-122 is its compliance with the 802.11b wireless standard. This allows for data transfer rates of up to 11 Mbps. While this speed may seem modest by today's standards, it was quite impressive at the time of its release, making it a suitable option for basic web browsing, email, and streaming. The adapter operates in the 2.4 GHz frequency band, which is known for its ability to penetrate walls and obstacles effectively.

The DWL-122 employs a user-friendly design, featuring a plug-and-play setup that simplifies installation. Users can connect the adapter to a USB port, and with the included drivers, they can quickly enable wireless functionality on their laptops or desktop computers. The adapter is compatible with a variety of operating systems, including Windows and Mac OS, making it accessible to a wide range of users.

Security is another critical aspect of the D-Link DWL-122. It supports WEP (Wired Equivalent Privacy), providing users with an essential level of data encryption to safeguard their connections from unauthorized access. Although WEP has been largely superseded by more advanced security protocols, such as WPA and WPA2, it represented a step forward in securing wireless communications in its time.

The adapter also features a compact and lightweight design, making it perfectly portable for users on the go. This is especially beneficial for laptop users who may need to connect to various networks in different locations. The external antenna enhances signal reception and transmission capabilities, ensuring a stable connection even in areas with weaker signals.

In summary, the D-Link DWL-122 remains a noteworthy solution for users seeking basic wireless connectivity in a portable format. Its simplicity, reliability, and user-friendly setup cater to a broad audience, making it a memorable product in the evolution of wireless technology. Although modern advancements might overshadow its features today, it laid the groundwork for subsequent wireless devices.