ZyXEL Communications NWA1120 Series Apply, Apply, Client, Dynamic, Site Survey, CTS to self

Chapter 6 Wireless LAN

Table 13 Wireless LAN > Wireless Settings: Wireless Client (continued)

LABEL	DESCRIPTION
SSID Profile	The SSID (Service Set IDentifier) identifies the Service Set with which a wireless station is
	associated. Wireless stations associating to the access point (AP) must have the same
	SSID.
	In this field, select the SSID profile of the AP you want to use. Click Apply.
	The SSID used in the selected SSID profile automatically changes to be the one you select
	in the Site Survey screen.
	Set the security configuration for this operating mode in the Wireless LAN > Security
	screen. Check the Dashboard screen to check if the settings you set show in the WLAN
	information.
	Note: If you are configuring the NWA from a computer connected to the wireless LAN and you
	change the NWA’s SSID or security settings, you will lose your wireless connection
	when you press Apply to confirm. You must then change the wireless settings of your
	computer to match the NWA’s new settings.
Channel	This shows the operating frequency/channel in use. This field is read-only when you select
	Client as your operation mode.
Channel Width	This field is not available in the NWA1123-NI.
	A standard 20MHz channel offers transfer speeds of up to 150Mbps whereas a 40MHz
	channel uses two standard channels and offers speeds of up to 300Mbps. However, not all
	devices support 40MHz channels.
	Select the channel bandwidth you want to use for your wireless network.
	It is recommended that you select 20/40MHz. This allows the NWA to adjust the channel
	bandwidth depending on network conditions.
	Select 20MHz if you want to lessen radio interference with other wireless devices in your
	neighborhood or the AP do not support channel bonding.

Advanced Settings

Output Power	Set the output power of the NWA in this field. If there is a high density of APs in an area,
	decrease the output power of the NWA to reduce interference with other APs. Select one of
	the following Full (Full Power), 50%, 25% or 12.5%. See the product specifications for
	more information on your NWA’s output power.
Preamble Type	Select Dynamic to have the NWA automatically use short preamble when the wireless
	network your NWA is connected to supports it, otherwise the NWA uses long preamble.
	Select Long preamble if you are unsure what preamble mode the wireless device your NWA
	is connected to supports, and to provide more reliable communications in busy wireless
	networks.
RTS/CTS	(Request To Send) The threshold (number of bytes) for enabling RTS/CTS handshake. Data
Threshold	with its frame size larger than this value will perform the RTS/CTS handshake. Setting this
	attribute to be larger than the maximum MSDU (MAC service data unit) size turns off the
	RTS/CTS handshake. Setting this attribute to its smallest value (1) turns on the RTS/CTS
	handshake.
Fragmentation	This field is not available in the NWA1123-NI.
	The threshold (number of bytes) for the fragmentation boundary for directed messages. It
	is the maximum data fragment size that can be sent.
Extension	You can use CTS to self or RTS-CTSprotection mechanism to reduce conflicts with other
channel	wireless networks or hidden wireless clients. The throughput of RTS-CTSis much lower
protection mode	than CTS to self. Using this mode may decrease your wireless performance.

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	NWA1120 Series User’s Guide