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User's Manual Part 1

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User’s Guide Chapter 7 – Reference Manual
associated, the Access Point sets the Short Preamble capability bit to 0 and Long Preamble is
used. In all other cases, the Short Preamble capability bit is set to 1 and Short Preamble is used.
CWmin – indicates contention window size minimum.
NonERP Protection – indicates Dynamic mode what means that NonERP protection bit is set to
0 or 1 whether NonERP BSSs or stations are associated to AP or not.
Slot Settings – indicates Dynamic or Long mode:
Dynamic mode allows mixing 802.11b only clients with Short Slot capable clients. If only
802.11g Short Slot capable clients are associated, 802.11a slot timing is used and the Short
Slot capability bit is set. If any non-802.11g/Short Slot capable clients are associated, the
access point switches back to 802.11b slot timing and clears the Short Slot capability bit.
Long mode indicates that the access point never sets the Short Slot capability bit in the
Beacons, Probes and Association Responses. Clients should therefore not use it.
Regulatory Domain – select the domain according to your country.
The full frequency range of the 2.4 GHz ISM band is not permitted for use in all countries. Depending
on your selection of regulatory domains, the available frequency channels will vary.
Before changing radio settings manually verify that your settings comply with
government regulations. At all times, it will be the responsibility of the end-user to
ensure that the installation complies with local radio regulations. Refer to the
Appendix: C) Regulatory Domain/Channels.
Default Channel – select the default channel. Channels list will vary depending on selected
regulatory domain.
Multiple frequency channels are used to avoid interference between nearby access points. If you wish
to operate more than one access point in overlapping coverage areas, we recommend a distance of
at least four channels between the chosen channels. For example, for three Access Points in close
proximity choose channels 1, 6 and 11.
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