User`s guide

Chapter 8 Wireless Configuration
ZyXEL NWA-3160 Series User’s Guide
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Figure 64 Wireless: Access Point (NWA-3165)
The following table describes the general wireless LAN labels in this screen.
Table 36 Wireless: Access Point (NWA-3165)
LABEL DESCRIPTION
Operating Mode Select Access Point from the drop-down list.
802.11 Mode Select 802.11b/g to allow both IEEE802.11b and IEEE802.11g compliant WLAN
devices to associate with the ZyXEL Device. The transmission rate of your ZyXEL
Device might be reduced.
Select 802.11n/g to allow both IEEE802.11n and IEEE802.11g compliant WLAN
devices to associate with the ZyXEL Device.
Channel Width This field is available only when 802.11n/g is selected as the 802.11 Mode.
Select whether the ZyXEL Device uses a wireless channel bandwidth of 20 or 40
MHz. 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 20MHz to use regular
20MHz channels, or select 20/40 MHz to allow the ZyXEL Device to adjust the
channel bandwidth depending on network conditions.
Channel ID Set the operating frequency/channel depending on your particular region.
To manually set the ZyXEL Device to use a channel, select a channel from the
drop-down list box.
Short GI This field is available only when 802.11n/g is selected as the 802.11 Mode. Select
Enable to use the Short GI (Guard Interval). The guard interval is the gap
introduced between data transmission from users in order to reduce interference.
Reducing the GI increases data transfer rates but also increases interference.
Increasing the GI reduces data transfer rates but also reduces interference.
A-MPDU
Aggregation
This field is available only when 802.11n/g is selected as the 802.11 Mode. Select
Enable to allow the grouping of several A-MSDUs (Aggregate MAC Service Data
Units) into one large A-MPDU (Aggregate MAC Protocol Data Unit). This function
allows faster data transfer rates.
RTS/CTS
Threshold
The threshold (number of bytes) for enabling RTS/CTS (Request To Send / Clear
To Send) handshake. Data 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 (256) turns on the RTS/CTS handshake. Enter a value
between 256 and 2346.