KPWL-0300 User's Manual
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9
Building a Wireless LAN Area with the KPWL-0300: Application
9.1 About Channels
This section explains how to set suitable channels.
Channels that are used
With the
access circuits
, you can set either an 802.11a/n compliant 5 GHz frequency
band or an 802.11b/g/n compliant 2.4 GHz frequency band.
In the 2.4 GHz band, channels 1ch to 13ch exist in increments of 5 MHz. Because the
channel width is 22 MHz, channels over 5ch need to be separated to prevent
interference. In general, use 1ch/6ch/11ch. Furthermore, you can prevent interference
by using different channels in adjacent nodes.
In the 5 GHz band, channels are set in increments of 20 MHz. You can use 4 channels
(36, 40, 44, and 48) in W52 for 802.11a, 4 channels (52, 56, 60, 64) in W53, and 11
channels (100, 104, 108, 112, 116, 120, 124, 128, 132,136, 140) in W56.
With the
relay circuits
, use W52 for 802.11a and the 5 GHz frequency bands that
correspond to W56. There are 4 channels (36ch, 40ch, 44ch, and 48ch) in W52 and 11
channels (100ch, 104ch, 108ch, 112ch, 116ch, 120ch, 124ch, 128ch, 132ch, 136ch,
and 140ch) in W56.
Because the relay function uses 2 channels within these to
do communications, set 2 channels that are separated, such
as 36ch/44ch or 40ch/48ch, when specifying them. You must
specify channels with the same combination (e.g. 36ch/44ch)
for devices on the same network. For different networks, you
can prevent interference by specifying a separate
combination (e.g. 40ch/48ch).
Furthermore, channels
that are assigned in W52 are restricted to indoor use only.
To use outdoors, change the setting to channels in W56.
36 ch/44 ch
36 ch/44 ch
36 ch/44 ch
40 ch/48 ch
40 ch/48 ch
40 ch/48 ch
Network A
Network B
Example of channel settings for adjacent networks
Example of channel settings
for adjacent nodes
1 ch
6 ch
11 ch
