IAP-W420/W422 UserManual
ORingIndustrial Networking Corp
31
Label
Description
Mode
Chooses the wireless standard used. 802.11g isan older standard
while 802.11n is a newer standard that offers higherdata rates.
The choice of 802.11g+n is a combination of 802.11g and 802.11n,
and operates in the 2.4 GHz frequency band.
HT Mode
Allows the network to use both 20 MHz and 40 MHz bands.
Required on AP side primarily to support co-existence. The station
can also send intolerant bit status to AP to signal use of 20 MHz
channel. The station will follow the AP's channel bonding and
channel switching HT 20/40 mechanism. Disabling this setting
forces the use of 40 MHz bandwidth/channel bonding, and results
in high data rate.
Country Code
Selects the country. Each country hasits own transmit power and
frequency regulations. To ensure regulatory compliance, you must
select the country where the device is operating in. The transmit
power levels for each channel are tuned accordingly.
Distance
Optimization
Specifies the distance between the AP and the station. Min is 300
meters and Max is 12000 (80MHz), 24000 (40MHz), 48000
(20MHz). This value may be set to slightly more than the physical
distance between the AP and the farthest station.
Fragmentation
Threshold
Specifies the maximum size for a packet before data is fragmented
into multiple packets. The range is 256-2346 bytes, or “off”. Setting
the Fragmentation Threshold too low may result in poor network
performance.The use of fragmentation can increase the reliability
of frame transmissions. Becausesmaller frames are sent,
collisions are much less likely to occur. However lower values of
the Fragmentation Threshold will result lower throughput as well.