Table of Contents
Advertisement
Chapter 3 - SpaceLink Access Point Manager
Channel
IEEE 802.11b devices are direct sequence spread spectrum devices that
spread a radio signal over a range of frequencies. The range of frequencies
used by a direct sequence device is called a Channel.
The IEEE 802.11b specification supports up to 14 overlapping Channels
for radio communication. But only 11 Channels are supported in the United
States and therefore on the SpaceLink Access Point. To minimize
interference, configure each SpaceLink Access Point to use Non-
overlapping channels. Non-overlapping channels have 25Mhz separation
beginning at the first allowed channel for the country (for the US and most
of Europe, channels 1, 6 & 11 are used).
Make sure that the SpaceLink Access Points sharing the same Channel (or
Channels close in number) are as far away from each other as possible,
based on the results of your site survey of the facility. You can find the site
survey utility in the SpaceLink PC card or CF card setup CD.
Supported Rates
The IEEE 802.11b specification supports four data rates: 11 Mbps, 5.5
Mbps, 2 Mbps, and 1 Mbps. As a wireless mobile client travels further and
further away from the SpaceLink Access Point, the data rate automatically
decreases in order to maintain a usable radio connection. Therefore, a client
that is close to an SpaceLink Access Point may operate at 11 Mbps, but a
client that is far away from the SpaceLink Access Point may operate at 2
Mbps. By default, the SpaceLink Access Point supports all four data rates.
However, you can specify a data rate by checking the appropriate box.
Supported Clients
802.11b products can operate at 11 Mbps, 5.5 Mbps, 2 Mbps or 1 Mbps. This
allows 802.11b devices to communicate with any existing 802.11 direct sequence
devices that operate only at 1 or 2 Mbps. By default, the SpaceLink Access Point
will support both 802.11b and 2 Mbps 802.11 direct sequence clients.
Encryption (Button)
Click this button to open the Encryption page.
Advanced (Button)
Click this button to open the advanced settings page. The advanced settings
page is normally hidden.
SpaceLink Access Point
31
Advertisement
Table of Contents
