SMC Networks E21011, Руководство пользователя

Страница: 87 / 264

C
HAPTER
8
| Wireless Settings
Radio Settings
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The following items are displayed on this page:
◆
High Throughput Mode — The access point provides a channel
bandwidth of 20 MHz by default giving an 802.11g connection speed of
54 Mbps and a 802.11n connection speed of up to 108 Mbps, and
ensures backward compliance for slower 802.11b devices. Setting the
HT Channel Bandwidth to 40 MHz (sometimes referred to as Turbo
Mode) increases connection speed for 802.11g and 802.11n to 74 Mbps
and 300 Mbps respectively. HT40plus indicates that the secondary
channel is above the primary channel. HT40minus indicates that the
secondary channel is below the primary channel.
(Default: HT20; Range:HT20, HT40PLUS, HT40MINUS)
N
OTE
:
Some 802.11n wireless clients may be capable of transmission rates
of up to 600 Mbps, however the access point will only be able to connect to
them at a maximum transmission rate of 300 Mbps.
◆ Radio Channel — The radio channel that the access point uses to
communicate with wireless clients. When multiple access points are
deployed in the same area, set the channel on neighboring access
points at least five channels apart to avoid interference with each other.
For example, in 11ng HT20 mode you can deploy up to three access
points in the same area using channels 1, 6, 11. Note that wireless
clients automatically set the channel to the same as that used by the
access point to which it is linked. (The available channels are
dependent on the Radio Mode, High Throughput Mode, and Country
Code settings.)
◆ Auto Channel Select — Selecting Auto Select enables the access point
to automatically select an unoccupied radio channel.
◆ Transmit Power — Adjusts the power of the radio signals transmitted
from the access point. The higher the transmission power, the farther
the transmission range. Power selection is not just a trade off between
coverage area and maximum supported clients. You also have to
ensure that high-power signals do not interfere with the operation of
other radio devices in the service area. (Default: Minimum; Range:
min, 12.5%, 25%, 50%, 100%)
◆ Maximum Association Clients — The total maximum number of
clients that may associate with all VAPs is fixed at 64.
◆
Radio Mode — Defines the radio mode for the VAP interface. (Default:
11n (g compatible); 11ng Mode Options: 11n (b&g compatible), 11n (g
compatible), 11n; 11na Mode Options: 11n (a compatible), 11n)
N
OTE
:
Enabling the access point to communicate with 802.11b/g clients in
both 802.11b/g/n Mixed and 802.11n modes also requires that HT
Operation be set to HT20.