SMC Networks 7904WBRA-N FICHE, User Manual

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C
ONFIGURING THE
B
ARRICADE
4-34
Note:
(1). When bandwidth is set to 20 MHz, there would be no
extension channel that can be selected. The extension channel is
based on the main or primary channel. When the main channel is
set to channel 1, channel 5 will be used as the extension channel.
When the main channel is set to 9, the extension channel can be
channel 5 or 13.
(2). The availability of some specific channels and/or operational
frequency bands are country dependent and are firmware
programmed at the factory to match the intended destination. The
firmware setting is not accessible by the end user.
Bandwidth Select the bandwidth:
•20 MHz: Sets the operation bandwidth as 20
MHz. when 20 MHz is selected, there would be
no extension channel available.
•20/40 MHz: Allows automatic detection of the
operation bandwidth between 20 and 40 MHz.
Choosing this mode allows you to use the
extension channel.
Extension Channel This is the optional channel for use. Setting the
Bandwith to 20/40 MHz allows you to use this
extension channel as the secondary channel for
doubling the bandwith of your wireless network.
Protected Mode In most situations, best performance is achieved
with Protected Mode turning Off. If you are
operating in an environment with heavy 802.11b
traffic or interference, best performance may be
achieved with Protected Mode turning On.
802.11e/WMM QoS Select to turn on/turn off the QoS function.
Parameter Description