INNACOMM W3100V, User Manual

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The Modem Wi-Fi
®
certified IEEE 802.11g compliant wireless access point allows
multiple computers to connect wirelessly to your local network over the Modem
Wireless LAN environment. The Modem is backward compatible with IEEE
802.11b, which means 802.11b and 802.11g devices can coexist in the same
wireless network. The Wireless Distribution System (WDS) on your Modem allows
you to extend the range of your wireless network. To be able to use WDS, you will
need to introduce an additional WDS-enabled access point into your wireless
network. To be able to connect the computers, make sure that a wireless client
adapter (WLAN client) is installed on each computer you want to connect via the
WLAN.
3.5.1 Wireless LAN Basics
Some basic understanding of 802.11b/g wireless technology and terminology is
useful when you are setting up the Router or any wireless access point. If you are
not familiar with wireless networks please take a few minutes to learn the basics.
3.5.1.1 Wireless client requirements
All wireless client adapters compliant to 802.11g and/or 802.11b can communicate
with the Modem (W) LAN environment. However, be aware that only 802.11g
compliant wireless clients are able to gain full profit of the 54 Mb/s (Max) bandwidth
delivered by the Modem. It is highly recommended to use only wireless client
adapters that are Wi-Fi
™
certified to ensure smooth interoperability with the
Modem
’
s WLAN.
3.5.1.2 Radio Transmission
Wireless LAN or WLAN devices use electromagnetic waves within a broad,
unlicensed range of the radio spectrum to transmit and receive radio signals. When
a wireless access point is present, it becomes a base station for the WLAN nodes
in its broadcast range. WLAN nodes transmit digital data using FM (frequency
modulation) radio signals. WLAN devices generate a carrier wave and modulate
this signal using various techniques. Digital data is superimposed onto the carrier
signal. This radio signal carries data to WLAN devices within range of the
transmitting device. The antennae of WLAN devices listen for and receive the
signal. The signal is demodulated and the transmitted data extracted. The
transmission method used by the access point is called Direct Sequence Spread