ZyXEL Communications ZyAIR G-110 ユーザーズマニュアル
ZyAIR G-110 User’s Guide
Using the ZyAIR Utility
2-1
Chapter 2
Using the ZyAIR Utility
This chapter shows you how to configure the ZyAIR using the ZyAIR Utility.
2.1 About Wireless LAN Network
This section describes each wireless LAN parameter.
2.1.1 Channel
A channel is the radio frequency(ies) used by IEEE 802.11b wireless devices. The number of available
channels depends on your geographical area. You may have a choice of channels (for your region) so
adjacent APs (access points) should use different channels to reduce crosstalk. Crosstalk occurs when radio
signals from different access points overlap causing interference and degrading performance.
Adjacent channels partially overlap however. To avoid interference due to overlap, the AP should be on a
channel at least five channels away from a channel that an adjacent AP is using. For example, if your
region has 11 channels and an adjacent AP is using channel 1, then you need to select a channel between 6
or 11.
channels depends on your geographical area. You may have a choice of channels (for your region) so
adjacent APs (access points) should use different channels to reduce crosstalk. Crosstalk occurs when radio
signals from different access points overlap causing interference and degrading performance.
Adjacent channels partially overlap however. To avoid interference due to overlap, the AP should be on a
channel at least five channels away from a channel that an adjacent AP is using. For example, if your
region has 11 channels and an adjacent AP is using channel 1, then you need to select a channel between 6
or 11.
2.1.2 SSID
The SSID (Service Set Identity) is a unique name shared among all wireless devices in a wireless network.
Wireless devices must have the same SSID to communicate with each other.
Wireless devices must have the same SSID to communicate with each other.
2.1.3 Transfer Rate
Your ZyAIR automatically adjusts the transmission rate to operate at the maximum transmission (data)
rate. When the communication quality drops below a certain level, the ZyAIR automatically switches to a
lower transmission (data) rate. Transmission at lower data speeds is usually more reliable. However, when
the communication quality improves again, the ZyAIR gradually increases the transmission (data) rate
again until it reaches the highest available transmission rate.
rate. When the communication quality drops below a certain level, the ZyAIR automatically switches to a
lower transmission (data) rate. Transmission at lower data speeds is usually more reliable. However, when
the communication quality improves again, the ZyAIR gradually increases the transmission (data) rate
again until it reaches the highest available transmission rate.
2.2 Wireless
Network
Application
Wireless LAN works in either of the two modes: ad-hoc and infrastructure.
To connect to a wired network within a coverage area using Access Points (APs), set the ZyAIR operation
mode to Infrastructure (BSS). An AP acts as a bridge between the wireless stations and the wired
network. In case you do not wish to connect to a wired network, but prefer to set up a small independent
wireless workgroup without an AP, use the Ad-hoc (IBSS) (Independent Basic Service Set) mode.
To connect to a wired network within a coverage area using Access Points (APs), set the ZyAIR operation
mode to Infrastructure (BSS). An AP acts as a bridge between the wireless stations and the wired
network. In case you do not wish to connect to a wired network, but prefer to set up a small independent
wireless workgroup without an AP, use the Ad-hoc (IBSS) (Independent Basic Service Set) mode.