User's Manual Part 1

December 20, 2004 SCP-LPS20x-011-012-01H
ADC Telecommunications, Inc. 73
The solution to this problem is to set the two networks to different channels with as great a separation as possible in
their operating frequencies. This reduces cross-talk and enables client stations connected to each access point to
transmit at the same time.
CHOOSING CHANNELS
For optimum performance when operating in 802.11b mode, choose a frequency that differs from other wireless
access points operating in neighboring cells by at least 25 MHz. (Note that this is the recommended minimum. Two
channels with this separation will always perform worse than two channels using the maximum separation. So it is
always best to use the greatest separation possible between overlapping networks.)
Consult the Wireless > Neighborhood page to view a list of access points currently operating in your area.
With the proliferation of wireless networks, it is very possible that the wireless cells of access points outside your
control may overlap your intended area of coverage. To generate a list of all access points operating near you and
view their operating frequencies, go to Wireless > Neighborhood.
The set of available channels is automatically determined by the LPS-20x, based on the Country setting that has
been programmed into the firmware. Available channels can be viewed on the Wi-Fi page. This means that the
number of non-overlapping channels available to you will vary. This will affect how you set up your multi-cell
network.
Channel Availability
The LPS-20x supports the following 14 channels in the 2.4 GHz band (Table 11).
Table 11. Supported Channels
Channel Frequency
12412
22417
32422
42427
52432
62437
72442
82447
92452
10 2457
11 2462
12 2467
13 2472
14 2477