ELSA AirLancer MC-11, Руководство пользователя

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Introduction
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AirLancer
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EN
Infrastructure
network A wireless LAN with one or more access points is generally referred to as a
peer-to-LAN network; however, in the LAN terminology this type of
networking is referred to as an infrastructure network. access points
also have an integrated router for ISDN or DSL connections. This allows all
connected stations to access the Internet.
This network type is ideally suited as an addition to existing LANs. The
infrastructure network is the ideal solution for expansion of a LAN in areas
where wiring is not possible or not economical.
1.4 IEEE 802.11b radio transmission
IEEE 802.11b All AirLancer operate under IEEE Standard 802.11b. This standard is a
supplement to the current IEEE standards for LANs, with IEEE 802.3 for
Ethernet being the most well-known. IEEE 802.11b covers the operation of
local wireless LANs on private and public property in the ISM frequency
range (
I ndustrial, S cientific, M edical: 2.4 and 2.483 GHz).
Please note that not all frequencies are permitted in every country! A table
with the frequencies and the approval regulations is included in the appendix.
11 Mbps The maximum bandwidth for data transfer is 11 Mbps. However, the actual
throughput depends on both the distance and the quality of the connection.
Increasing distance and decreasing connection quality reduces the transfer
speed to 5.5 Mbps, then to 2 and finally 1 Mbps. The transfer range in the
open is up to 400 meters, in buildings it is typically around 30 – 40 meters.
The actual range achieved strongly depends on the spatial environment.
Interference and obstacles in particular have a strong influence on the range.
Optimum positioning of the wireless stations is often decisive.