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AP-5131 Access Point Product Reference Guide
5-50
3. Configure the Radio Settings field to assign a channel, antenna diversity setting, radio
transmit power level and data rate.
ERP Protection Extended Rate PHY (ERP) allows 802.11g MUs to interoperate with
802.11b only MUs. ERP Protection is managed automatically by the
AP-5131 and informs users when 802.11b MUs are present within
the AP-5131’s coverage area. The presence of 802.11b MUs within
the 802.11g coverage area negatively impacts network
performance, so this feature should looked to as an indicator of
why network performance has been degraded.
Channel Setting The following channel setting options exist:
User Selection - If selected, use the drop-down menu to specify
the legal channel for the intended country of operation. The drop-
down menu is not available if this option is not selected.
Automatic Selection - Enables the
AP-5131 to auto-select the
channel of operation. For example, if three AP-5131’s are operating
on 802.11b/g, each AP-5131 would be set to a non-overlapping
channel (1, 6 and 11). If using the AP-5131’s 802.11a radio, a
Uniform Spreading option is available (and is the default setting
for the 802.11a radio). To comply with Dynamic Frequency
Selection (DFS) requirements in the European Union, the 802.11a
radio uses a randomly selected channel each time the AP-5131 is
powered on.
Antenna Diversity Specifies the antenna selection for the 802.11a radio. Options
include Primary Only, Secondary Only and Full Diversity. The default
setting is Primary. However, Diversity can improve performance
and signal reception in areas where interference is significant and
is recommended when two antennas are supported.
Power Level The Power Level parameter defines the transmit power of the
802.11a or 802.11b/g antenna(s). The values are expressed in dBm
and mW.
802.11 b/g mode Specify b only, g only or b and g to define whether the 802.11b/
g radio transmits in the 2.4 Ghz band exclusively for 802.11b
(legacy) clients or transmits in the 2.4 Ghz band for 802.11g clients.
Selecting b and g enables the
AP-5131 to transmit to both b and g
clients if legacy clients (802.11b) partially comprise the network.
Select accordingly based on the MU requirements of the network.
This parameter does not apply to
AP-5131 802.11a radios.