LANCOM 1811n Wireless – LANCOM 1821n Wireless
Preface
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EN
Preface
Thank you for your confidence in us!
With LANCOM 1811n Wireless and LANCOM 1821n Wireless you have chosen
a powerful wireless router that possesses integrated DSL respectively ADSL
and ISDN interfaces
by default as well as an integrated 4-port switch.
LANCOM wireless routers provide the comprehensive functions of an access
point, professional firewall and high-quality VPN gateway in a single, com-
pact device. They thus combine most important functions as a reliable solution
for small and mid-sized enterprises, home and branch offices.
The wireless routers operate either in the 2.4 GHz or in the 5 GHz frequency
band. The 5 GHz band is ideal as the backbone for cost-effective, high-
bandwidth transmission that is free of interference and highly secure. The
LANCOM Wireless Router series models can operate in stand-alone mode, in
managed mode or in client mode. The access point can be used in managed
mode with a LANCOM WLAN Controller without any additional software
upgrades.
The LANCOM 1811n Wirelessand LANCOM 1821n Wireless provide a
maximum wireless LAN performance of up to 300 Mbps thanks to the support
of the IEEE 802.11n standard. The 802.11n standard includes many new
mechanisms—such as the use of MIMO, 40-MHz channels, packet
aggregation and block acknowledgement—in order to increase the
bandwidth available for user applications significantly. This allows a more
than fivefold increase in speed over 802.11a/g networks with physical data
rates of up to 300 Mbps.
MIMO (multiple input multiple output) technology allows the LANCOM
Wireless Router to transfer several data streams in parallel and thus
significantly improve data throughput. MIMO uses several transmit/receive
units for both the transmitter and the receiver. The separate data streams are
identified by unique characteristics that result from the different paths that
the data take. By processing multiple data streams MIMO achieves not just
higher data throughput but also better coverage (fewer "radio black spots")
and better stability. These are the most important arguments for 802.11n for
commercial customers in particular.
Model variants
This documentation is intended for LANCOM Wireless Router users. The
following models are available:
