D-Link DWC-1000 User Manual page 76

Wireless Controller
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DTIM Period: The Delivery Traffic Information Map (DTIM) message is an
element included in some
Beacon frames. It indicates which client stations, currently sleeping in low -
power mode, have data buffered on the access point awaiting pick -up. The
DTIM period you specify indicates how often the clients served by this access
point should check for buffered data still on the AP awaiting pickup.
technology. IEEE 802.11n supports data ranges of up to 248 Mbps and
nearly twice the indoor range of 802.11 b, 802.11g, and 802.11a.
5 GHz IEEE 802.11n is the recommended mode for networks wi th
802.11n devices that operate in the 5 GHz frequency that do not need to
support 802.11a or 802.11b/g devices. IEEE 802.11n can achieve a higher
throughput when it does not need to be compatible with legacy devices
(802.11b/g or 802.11a).
IEEE 802.11b/g operates in the 2.4 GHz ISM band. IEEE 802.11b is an
enhancement of the initial 802.11 PHY to include 5.5 Mbps and 11 Mbps
data rates. It uses direct sequence spread spectrum (DSSS) or frequency
hopping spread spectrum (FHSS) as well as complementary code keying
(CCK) to provide the higher data rates. It supports data rates ranging from
1 to 11 Mbps. IEEE 802.11g is a higher speed extension (up to 54 Mbps)
to the 802.11b PHY. It uses orthogonal frequency division multiplexing
(OFDM). It supports data rates ranging from 1 to 54 Mbps.
IEEE 802.11b/g/n operates in the 2.4 GHz ISM band and includes support
for 802.11b, 802.11g, and 802.11n devices.
2.4 GHz IEEE 802.11n is the recommended mode for networks with
802.11n devices that operate in the 2.4 GHz frequenc y that do not need to
support 802.11a or 802.11b/g devices. IEEE 802.11n can achieve a higher
throughput when it does not need to be compatible with legacy devices
(802.11b/g or 802.11a).
IEEE 802.11a/n/ac operates in the 5 GHz ISM band and includes suppor t
for 802.11a , 802.11n and 802.11ac devices.
IEEE 802.11n/ac operates in the 5 GHz ISM band and includes support
for 802.11n and 802.11ac devices.
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User Manual