Dual-Mode Access Points

The next chapter covers 802.11a. This standard enables data rates up to 54Mbps. A dual-mode Accent Point operates using both technologies, and can buffer data between the lower and higher data rates. Dual-mode Accent Points cost more than an Accent Point that works with just one technology.

A dual-mode Accent Point can be useful in several situations:

In expanding an existing 802.11b network. For example, if you have already invested in 802.11b devices, but want to use the faster 802.11a technology when you add newer devices to the network, a dual-mode Accent Point can enable all devices to interact with each other.
In providing an upgrade path for your wireless network. Again, if you have already invested in 802.11b equipment, a dual-mode Accent Point can enable you to slowly replace these devices with 802.11a as your budget permits . In a large network, it can be expensive to change out all of your network adapters, as well as Accent Points, at the same time.
In providing access to temporary network clients . If a business client, a consultant, or another person visits your site and brings his own wireless computer (such as a laptop), then a dual-mode Accent Point enables that person to make a connection to your network no matter whether he uses 802.11a or 802.11b.

The next chapter will give you an overview of 802.11a networking, and Chapter 22 covers a newer standard, 802.11g.