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This chapter provides background information on wireless LAN network.
2.1 Wireless LAN Overview
This section describes the wireless LAN network terms and applications.
2.1.1 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.
2.1.2 Channel
A radio frequency used by a wireless device is called a channel.
2.1.3 Transmission Rate (Tx Rate)
The ZyXEL G-220 v2 provides various transmission (data) rate options for you to select.
Options include Fully Auto, 1 Mbps, 2 Mbps, 5.5 Mbps, 6 Mbps, 9 Mbps, 11 Mbps, 12
Mbps, 18 Mbps, 24 Mbps, 36 Mbps, 48 Mbps and 54 Mbps. In most networking scenarios,
the factory default Fully Auto setting proves the most efficient. This setting allows your
ZyXEL G-220 v2 to operate at the maximum transmission (data) rate. When the
communication quality drops below a certain level, the ZyXEL G-220 v2 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 ZyXEL G-220 v2
gradually increases the transmission (data) rate again until it reaches the highest available
transmission rate. You can select any of the above options. If you wish to balance speed versus
reliability, select 54 Mbps in a networking environment where you are certain that all wireless
devices can communicate at the highest transmission (data) rate. 1 Mbps or 2 Mbps are used
often in networking environments where the range of the wireless connection is more
important than speed.
Note: With USB1.0/1.1, the ZyXEL G-220 v2 can only transmit at up to 11Mbps.
2.2 Wireless LAN Security Overview
Wireless LAN security is vital to your network to protect wireless communications.
Chapter 2 Wireless LAN Network
Wireless LAN Network
ZyXEL G-220 v2 User's Guide
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Troubleshooting
